[Docs] [txt|pdf] [Tracker] [WG] [Email] [Diff1] [Diff2] [Nits]
Versions: 00 01 02 03 04 05 06 07 08 09 10 11
12 RFC 4780 Draft is active
In: Proposed Standard
Internet Engineering Task Force K. Lingle
Internet Draft Cisco Systems
Document: draft-ietf-sip-mib-06.txt J. Maeng
July 2003 ipDialog, Inc.
Expires: December 2003 J-F. Mule
CableLabs
D. Walker
SS8 Networks, Inc.
Management Information Base
for Session Initiation Protocol
Status of this Memo
This document is an Internet-Draft and is in full conformance with
all provisions of Section 10 of RFC2026 [RFC2026].
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet-
Drafts.
Internet-Drafts are draft documents valid for a maximum of six
months and may be updated, replaced, or obsoleted by other documents
at any time. It is inappropriate to use Internet-Drafts as
reference material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html.
This particular draft is being developed in the Session Initiation
Protocol Working Group. Discussion of it therefore belongs on that
list. The charter for Session Initiation Protocol may be found at
http://www.ietf.org/html.charters/sip-charter.html
Abstract
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes a set of managed objects that are used
to manage Session Initiation Protocol (SIP) entities, which include
User Agents, Proxy servers, Redirect servers and Registrars.
Lingle/Maeng/Mule/Walker [Page 1]
Internet-Draft SIP MIB June 2003
Table of Contents
Abstract.........................................................1
1. Introduction..................................................2
2. The Internet-Standard Management Framework....................2
3. Overview......................................................3
4. Structure of SIP MIB..........................................3
4.1. Textual Conventions........................................5
4.2. Relationship to Other MIBs.................................6
5. Definitions...................................................9
5.1. SIP Textual Conventions....................................9
5.2. SIP Common................................................11
5.3. SIP User Agent............................................66
5.4. SIP Server (Registrar, Redirect & Proxy Server)...........71
6. Changes from previous drafts.................................89
7. Security Considerations......................................97
8. Intellectual Property.......................................101
9. Full Copyright Statement....................................101
10. Normative References......................................103
11. Informative References....................................103
12. Acknowledgments...........................................104
13. Author's Addresses........................................104
1. Introduction
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes a set of managed objects that are used
to manage Session Initiation Protocol (SIP) entities, which include
User Agents, Proxy servers, Redirect servers and Registrars.
Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in BCP 14, RFC 2119
[RFC2119].
2. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410 [RFC3410].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. MIB objects are generally
accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a
MIB module that is compliant to the SMIv2, which is described in STD
Lingle/Maeng/Mule/Walker [Page 2]
Internet-Draft SIP MIB June 2003
58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC
2580 [RFC2580].
3. Overview
The Session Initiation Protocol (SIP) [RFC3261] is an application-
layer control (signaling) protocol for creating, modifying, and
terminating sessions with one or more participants. These sessions
include Internet telephone calls, multimedia distribution, and
multimedia conferences. This MIB provides some managed objects for
SIP entities defined in RFC 3261 - User Agent, Proxy Server,
Redirect Server and Registrar. It is provided as a base for the work
within the working group to define a MIB.
This MIB is intended to provide management of the basic SIP
entities. It provides for monitoring of status and protocol
statistics, as well as for configuration of SIP entities.
4. Structure of SIP MIB
This memo specifies four MIB modules. They are SIP-COMMON-MIB, SIP-
SERVER-MIB, SIP-UA-MIB and SIP-TC. SIP-COMMON-MIB contains common
objects used in all the SIP entities. SIP-SERVER-MIB contains
objects specific to Registrars, Proxies and Redirect Servers, and
SIP-UA-MIB includes objects specific to User Agents. SIP-TC defines
the textual conventions used throughout MIB modules.
The MIB Modules contain following groups of objects:
-- SIP-COMMON-MIB: Common to all the SIP entities
sipCommonMIBObjects
|
+ sipCommonCfgBase
| This object group defines configuration objects common to
| all SIP entities including SIP protocol version, operational
| and administrative status, SIP organization name, max number
| of SIP sessions an entity can manage, etc.
|
+ sipCommonCfgTimer
| This object group defines timer configuration objects
| applicable to SIP user agent and SIP stateful proxy entities.
|
+ sipCommonCfgRetry
| This object group defines retry counter configuration objects
| applicable to SIP user agent and SIP stateful proxy entities.
|
+ sipCommonCfgExpires
| This object group defines Expires header value configuration
| objects applicable to SIP user agent and SIP stateful proxies
|
+ sipCommonStatsSummary
Lingle/Maeng/Mule/Walker [Page 3]
Internet-Draft SIP MIB June 2003
| This object group defines a table containing the summary
| statistics objects applicable to all SIP entities, including
| the total number of SIP requests & responses in/out, total
| number of transactions, etc.
|
+ sipCommonStatsMethod
| This object group defines a table containing the per method
| statistics objects applicable to all SIP entities, including
| the total number of SIP requests for the Invite, Ack, Bye,
| Cancel, Options and /Register methods.
|
+ sipCommonStatusCode
| This object group defines a table indicating the number of
| SIP responses in/out per class of response (1xx, 2xx, etc.)
|
+ sipCommonStatsTrans
| This object group defines a table containing a gauge
| reflecting the number of transactions currently awaiting
| definitive responses by the managed SIP entity.
|
+ sipCommonStatsRetry
| This object group defines statistic objects indicating the
| number of retries sent on a per method basis.
|
+ sipCommonStatsOther
| This object group defines additional statistic objects
| including a counter of the number of SIP requests received
| with unsupported URIs.
|
+ sipCommonNotifObjects
This object group defines accessible-for-notify objects
that are relate to the SNMP notifications defined in this
MIB module.
The SIP-COMMON-MIB also contains notifications, including:
+ sipStatusCodeNotif
| indicates that a specific status code has been sent or
| received by the system.
|
+ sipStatusCodeThreshExceededNotif
| indicates that a specific status code has been sent or
| received by the system enough to exceed the configured
| threshold.
-- SIP-SERVER-MIB: Groups of objects for Registrars, Proxy and
-- Redirect Servers
sipServerMIBObjects
|
+ sipServerCfg
| This object group defines common server configuration objects
| including the SIP server host address.
Lingle/Maeng/Mule/Walker [Page 4]
Internet-Draft SIP MIB June 2003
|
+ sipServerStats
| This object group is currently empty and is created for
| future extensions of the SIP MIB.
|
+ sipProxyCfg
| This object group defines Proxy Server configuration objects
| including the maximum duration in the Expires header, the
| proxy mode of operation (stateless, stateful, call stateful),
| the cancellation of outstanding branch requests
|
+ sipProxyStats
| This object group defines a table containing the statistics
| objects applicable to all SIP Proxy Servers. It
| includes the number of occurrences of unsupported options
| being specified in received Proxy-Require headers.
|
+ sipRedirCfg
| This object group is currently empty and is created for
| future extensions of the SIP MIB.
|
+ sipRedirStats
| This object group is currently empty and is created for
| future extensions of the SIP MIB.
|
+ sipRegCfg
| This object group is currently empty and is created for
| future extensions of the SIP MIB.
|
+ sipRegStats
| This object group is currently empty and is created for
| future extensions of the SIP MIB.
-- SIP-UA-MIB: Group of objects for User Agents
sipUAMIBObjects
|
+ sipUACfgSipServer
This group specifies SIP server configuration objects
applicable to SIP user agents including the Internet address
of the SIP Server to use to proxy or redirect calls.
To conform with this specification, an SNMP agent MUST implement
SIP-TC, plus the SIP-COMMON-MIB and one of the SIP entity-type-
specific MIB modules (SIP-SERVER-MIB or SIP-UA-MIB) as applicable
for each instance of a SIP entity being managed. If a device has
more than one SIP entity or multiple instances of the same entity,
type it MUST implement multiple SIP modules. Section 4.2 describes
handling of multiple instances in detail.
4.1. Textual Conventions
The data type SipTransportProtocol is used as textual conventions in
this document. These textual conventions have NO effect on either
Lingle/Maeng/Mule/Walker [Page 5]
Internet-Draft SIP MIB June 2003
the syntax or the semantics of any managed object. Objects defined
using these conventions are always encoded by means of the rules
that define their primitive type. Hence, no changes to the SMI or
the SNMP are necessary to accommodate these textual conventions,
which are adopted merely for the convenience of readers.
4.2. Relationship to the Network Services MIB
There is a requirement to be able to support multiple instances of
various SIP MIB modules in the context of a single system having a
single SNMP agent.
This requirement is solved by using the framework provided by the
NETWORK-SERVICES-MIB, RFC 2788 [RFC2788]. A device implementing the
SIP MIB MUST support the NETWORK-SERVICES-MIB and, at a minimum, it
MUST support the applIndex and applName objects in applTable. The
following applName conventions will be adopted:
o for a SIP Proxy entity, applName MUST be equal to "sip_proxy"
o for a SIP Redirect entity, applName MUST be equal to
"sip_redirect"
o for a SIP Registrar entity, applName MUST be equal to
"sip_registrar"
o for a SIP User Agent entity, applName MUST be equal to
"sip_ua"
o for any combination of Proxy, Registrar, or Redirect Server
being managed as a single aggregate entity, the applName for
the combined server entity MUST reflect the appropriate
combination. For example, "sip_proxy_redirect" or
"sip_proxy_registrar".
The SNMP agent MAY support any combination of the other attributes
in applTable. If the following objects are supported, the object
values SHOULD be populated as follows:
o applVersion: version of the SIP application.
o applUptime: value MUST be identical to sipServiceStartTime
defined in the SIP-COMMON-MIB module,
o applOperStatus: value SHOULD reflect the operational status
defined in sipServiceOperStatus, at least by means of a
mapping,
o applLastChange: value MUST be identical to
sipServiceLastChange defined in the SIP-COMMON module.
Note: There are a number of other objects in the applTable. They
are not included for the sake of brevity and for the fact that they
do not enhance the concept being presented.
Example 1:
Lingle/Maeng/Mule/Walker [Page 6]
Internet-Draft SIP MIB June 2003
The tables below illustrate how a system acting as both Proxy and
Registrar server might be configured to maintain separate SIP-
COMMON-MIB instances.
The NETWORK-SERVICES-MIB applTable might be populated as follows:
applIndex | applName | applDescription
----------+-----------------+------------------------------
1 | "sip_proxy" | "ACME SIP Proxy"
----------+-----------------+------------------------------
2 | "sip_registrar" | "ACME SIP Registrar"
----------+-----------------+------------------------------
The SIP-COMMON-MIB sipCommonCfgTable would have two rows: one for
the proxy (applIndex=1) and one for the registrar (applIndex=2).
The SIP-SERVER-MIB tables would, however, only be populated with one
row indexed by applIndex=1 and applIndex=2 respectively if the
server provides either proxy or registrar.
SIP-COMMON-MIB sipCommonCfgTable might be populated as:
applIndex | sipProtocolVersion | sipServiceOperStatus | ...
----------+--------------------+----------------------+----
1 | "SIP/2.0" | up(1) |
----------+--------------------+----------------------+----
2 | "SIP/2.0" | restarting(4) |
----------+--------------------+----------------------+----
while sipProxyCfgTable in SIP-SERVER-MIB might be populated as:
applIndex | sipRequestMaxExpires | sipProxyStatefulness | ...
----------+----------------------+----------------------+----
1 | 3600 | stateless(1) |
----------+----------------------+----------------------+----
and sipRegUserTable in SIP-SERVER-MIB might be populated as:
applIndex | sipUserIndex | sipUserUri | ...
----------+--------------+--------------------------+----
2 | 1 | drwalker@ss8.com |
----------+--------------+--------------------------+----
2 | 2 | jmaeng@ipdialog.com |
----------+--------------+--------------------------+----
2 | 3 | klingle@cisco.com |
----------+--------------+--------------------------+----
2 | 4 | jfm@cablelabs.com |
----------+--------------+--------------------------+----
Example 2:
This example illustrates how to represent a system acting as both
Proxy and Registrar server, where the two entities share a single
instance of SIP-COMMON-MIB.
Lingle/Maeng/Mule/Walker [Page 7]
Internet-Draft SIP MIB June 2003
The NETWORK-SERVICES-MIB applTable might be populated as follows:
applIndex | applName | applDescription
----------+----------------------+---------------------------
1 | "sip_proxy_registrar"| "ACME SIP Proxy&Registrar"
----------+----------------------+---------------------------
The SIP-COMMON-MIB sipCommonCfgTable would have only one row to
cover both the proxy and the registrar.
SIP-COMMON-MIB sipCommonCfgTable might be populated as:
applIndex | sipProtocolVersion | sipServiceOperStatus | ...
----------+--------------------+----------------------+----
1 | "SIP/2.0" | up(1) |
----------+--------------------+----------------------+----
while sipProxyCfgTable in SIP-SERVER-MIB is populated as:
applIndex | sipRequestMaxExpires | sipProxyStatefulness | ...
----------+----------------------+----------------------+----
1 | 3600 | stateless(1) |
----------+----------------------+----------------------+----
and sipRegUserTable in SIP-SERVER-MIB might be populated as:
applIndex | sipUserIndex | sipUserUri | ...
----------+--------------+--------------------------+----
1 | 1 | drwalker@ss8networks.com |
----------+--------------+--------------------------+----
1 | 2 | jmaeng@ipdialog.com |
----------+--------------+--------------------------+----
1 | 3 | klingle@cisco.com |
----------+--------------+--------------------------+----
1 | 4 | jfm@cablelabs.com |
----------+--------------+--------------------------+----
The NETWORK-SERVICES-MIB assocTable is not considered a requirement
for SIP systems. It is not a mandatory group for NETWORK-SERVICES-
MIB compliance.
The relationship between the value of applOperStatus and
sipServiceOperStatus is as follows:
sipServiceOperStatus applOperStatus
-------------------- --------------
up --> up
down --> down
congested --> congested
restarting --> restarting
quiescing --> quiescing
testing --> up
unknown --> --indeterminate--
-
-
Lingle/Maeng/Mule/Walker [Page 8]
Internet-Draft SIP MIB June 2003
If the sipOperStatus is ÃæunknownÃÆ there is no corresponding value of
applOperStatus. Therefore, the last known value of applOperStatus
SHOULD be maintained until the sipOperStatus transitions to a value
that can be mapped appropriately.
4.3. Accommodating SIP Extension Methods
The core set of SIP methods is defined in RFC3261. Other Internet-
Draft documents and RFCs define additional methods. In the future
more methods may be defined. In order to avoid having to update the
SIP-COMMON-MIB module to accommodate these extension methods, there
are various extension method tables throughout the MIB module.
There is no per method objects defined in the other MIB modules.
The sipExtMethodSupportedTable is the main table for listing all of
the extension methods supported by a system. The table is
informational in nature and populated by the system. Entries cannot
be added or deleted by a SNMP manager. The other extension method
tables in the MIB are augmentations of this table.
The other extension method tables defined in the SIP-COMMON-MIB are:
sipCommonCfgTimerExtMethodTable, sipCommonCfgRetryExtMethodTable,
sipStatsExtMethodTable, and sipCommonStatsRetryExtMethodTable.
5. Definitions
5.1. SIP Textual Conventions
SIP-TC DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
mib-2
FROM SNMPv2-SMI
TEXTUAL-CONVENTION
FROM SNMPv2-TC;
sipTC MODULE-IDENTITY
LAST-UPDATED "200306250000Z"
ORGANIZATION "IETF SIP Working Group, SIP MIB Team"
CONTACT-INFO
"SIP WG email: sip@ietf.org
Co-editor Kevin Lingle
Lingle/Maeng/Mule/Walker [Page 9]
Internet-Draft SIP MIB June 2003
Cisco Systems, Inc.
postal: 7025 Kit Creek Road
P.O. Box 14987
Research Triangle Park, NC 27709
USA
email: klingle@cisco.com
phone: +1 919 392 2029
Co-editor Joon Maeng
ipDialog, Inc.
postal: 7701 N. Lamar Blvd., Suite 304
Austin, TX 78752-1023
USA
email: jmaeng@ipdialog.com
phone: +1 512 371 1770
Co-editor Dave Walker
SS8 Networks, Inc.
postal: 495 March Road
Kanata, ON K2K 3G1
Canada
email: drwalker@ss8.com
phone: +1 613 592 2100
Co-editor Jean-Francois Mule
CableLabs
postal: 400 Centennial Parkway
Louisville, CO 80027
USA
email: jf.mule@cablelabs.com
phone: +1 303 661 3708 "
DESCRIPTION
"Session Initiation Protocol (SIP) MIB Textual
Conventions module used by other SIP-related
MIB Modules.
Copyright (C) The Internet Society (2003). This
version of this MIB module is part of RFC XXXX; see
the RFC itself for full legal notices."
-- RFC Ed: replace XXXX with actual RFC number and remove this note
REVISION "200306250000Z"
DESCRIPTION
"Initial version of the IETF SIP-TC module.
This version published as part of RFC XXXX."
-- RFC Ed: replace XXXX with actual RFC number and remove this note
::= { mib-2 xx }
-- RFC Ed: replace xx with actual IANA assigned number and remove
-- this note
--
-- Textual Conventions
--
SipTransportProtocol ::= TEXTUAL-CONVENTION
Lingle/Maeng/Mule/Walker [Page 10]
Internet-Draft SIP MIB June 2003
STATUS current
DESCRIPTION
"This convention is a bit map. Each bit represents
a transport protocol. If a bit has value 1, then
that selected transport protocol is in some way
dependent on the context of the object using this
convention.
If a bit has value 0, then that transport protocol
is not selected. Combinations of bits can be
set when multiple transport protocols are selected.
bit 0 : a protocol other than those defined here.
bit 1 : User Datagram Protocol.
bit 2 : Transmission Control Protocol.
bit 3 : Stream Control Transmission Protocol.
bit 4 : Transport Layer Security Protocol."
SYNTAX BITS {
other(0), -- none of the following
udp(1),
tcp(2),
sctp(3),
tls(4)
}
-- REFERENCE "RFC 3261, Section 18"
END
5.2. SIP Common
SIP-COMMON-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
OBJECT-TYPE,
NOTIFICATION-TYPE,
Counter32,
Gauge32,
TimeTicks,
Unsigned32,
mib-2
FROM SNMPv2-SMI
RowStatus,
TruthValue
FROM SNMPv2-TC
MODULE-COMPLIANCE,
OBJECT-GROUP,
NOTIFICATION-GROUP
FROM SNMPv2-CONF
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB
Lingle/Maeng/Mule/Walker [Page 11]
Internet-Draft SIP MIB June 2003
SipTransportProtocol
FROM SIP-TC
applIndex
FROM NETWORK-SERVICES-MIB
InetPortNumber
FROM INET-ADDRESS-MIB;
sipCommonMIB MODULE-IDENTITY
LAST-UPDATED "200306250000Z"
ORGANIZATION "IETF SIP Working Group, SIP MIB Team"
CONTACT-INFO
"SIP WG email: sip@ietf.org
Co-editor Kevin Lingle
Cisco Systems, Inc.
postal: 7025 Kit Creek Road
P.O. Box 14987
Research Triangle Park, NC 27709
USA
email: klingle@cisco.com
phone: +1 919 392 2029
Co-editor Joon Maeng
ipDialog, Inc.
postal: 7701 N. Lamar Blvd., Suite 304
Austin, TX 78752-1023
USA
email: jmaeng@ipdialog.com
phone: +1 512 371 1770
Co-editor Dave Walker
SS8 Networks, Inc.
postal: 495 March Road
Kanata, ON K2K 3G1
Canada
email: drwalker@ss8.com
phone: +1 613 592 2100
Co-editor Jean-Francois Mule
CableLabs
postal: 400 Centennial Parkway
Louisville, CO 80027
USA
email: jf.mule@cablelabs.com
phone: +1 303 661 3708 "
DESCRIPTION
"Session Initiation Protocol (SIP) Common MIB module.
This module defines objects which MAY be common to all
SIP entities.
SIP is an application-layer signalling protocol for
creating, modifying and terminating multimedia
Lingle/Maeng/Mule/Walker [Page 12]
Internet-Draft SIP MIB June 2003
sessions with one or more participants. These sessions
include Internet multimedia conferences and Internet
telephone calls. SIP is defined in RFC 3261 (June
2002).
This MIB is defined for managing objects which are
common to SIP User Agents (UAs), Proxy and Redirect
Servers, and Registrars. Objects specific to each of
these entities MAY be managed using entity specific
MIBs defined in other modules.
A User Agent is an application that contains both a
User Agent Client (UAC) and a User Agent Server (UAS).
A UAC is an application that initiates a SIP request.
A UAS is an application that contacts the user when a
SIP request is received and that returns a response on
behalf of the user. The response accepts, rejects, or
redirects the request.
A Proxy Server acts as both a client and a server.
It accepts requests from other clients, either
responding to them or passing them on to other
servers, possibly after modification.
A Redirect Server accepts requests from clients and
returns zero or more addresses to that client. Unlike
a Proxy Server it does not initiate requests. Unlike
a User Agent Server it does not accept calls.
A Registrar Server accepts REGISTER requests.
A Registrar Server is typically co-located with a
Proxy or Redirect Server.
Copyright (C) The Internet Society (2003). This
version of this MIB module is part of RFC XXXX; see
the RFC itself for full legal notices."
-- RFC Ed: replace XXXX with actual RFC number and remove this note
REVISION "200306250000Z"
DESCRIPTION
"Initial version of the IETF SIP-COMMON-MIB module.
This version published as part of RFC XXXX."
-- RFC Ed: replace XXXX with actual RFC number and remove this note
::= { mib-2 xx }
-- RFC Ed: replace xx with actual IANA assigned number and remove
-- this note
-- Top-Level Components of this MIB.
sipCommonMIBNotifs OBJECT IDENTIFIER ::= { sipCommonMIB 0 }
sipCommonMIBObjects OBJECT IDENTIFIER ::= { sipCommonMIB 1 }
sipCommonMIBConform OBJECT IDENTIFIER ::= { sipCommonMIB 2 }
--
-- This MIB contains objects that are common to all SIP entities.
--
Lingle/Maeng/Mule/Walker [Page 13]
Internet-Draft SIP MIB June 2003
-- Common basic configuration
sipCommonCfgBase
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 1 }
-- Protocol timer configuration
sipCommonCfgTimer
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 2 }
-- Method retry configuration
sipCommonCfgRetry
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 3 }
-- Expires header configuration
sipCommonCfgExpires
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 4 }
-- SIP message summary statistics
sipCommonStatsSummary
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 5 }
-- Per method statistics
sipCommonStatsMethod
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 6 }
-- Per Status code or status code class statistics
sipCommonStatusCode
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 7 }
-- Transaction statistics
sipCommonStatsTrans
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 8 }
-- Method retry statistics
sipCommonStatsRetry
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 9 }
-- Other statistics
sipCommonStatsOther
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 10 }
-- Accessible-for-notify objects
sipCommonNotifObjects
OBJECT IDENTIFIER ::= { sipCommonMIBObjects 11 }
--
-- Common Configuration Objects
--
sipCommonCfgTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCommonCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains the common configuration objects
applicable to all SIP entities."
::= { sipCommonCfgBase 1 }
sipCommonCfgEntry OBJECT-TYPE
SYNTAX SipCommonCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of common configuration.
Lingle/Maeng/Mule/Walker [Page 14]
Internet-Draft SIP MIB June 2003
Each row represents objects for a particular SIP
entity instance present in this system. applIndex
is used to uniquely identify these instances of SIP
entities and correlate them through the common
framework of the NETWORK-SERVICES-MIB (RFC 2788)."
INDEX { applIndex }
::= { sipCommonCfgTable 1 }
SipCommonCfgEntry ::=
SEQUENCE {
sipProtocolVersion SnmpAdminString,
sipServiceOperStatus INTEGER,
sipServiceAdminStatus INTEGER,
sipServiceStartTime TimeTicks,
sipServiceLastChange TimeTicks,
sipOrganization SnmpAdminString,
sipMaxSessions Unsigned32,
sipRequestUriHostMatching TruthValue,
sipServiceNotifEnable BITS,
sipEntityType INTEGER
}
sipProtocolVersion OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object will reflect the version of SIP supported
by this SIP entity. It will follow the same format as
SIP version information contained in the SIP messages
generated by this SIP entity. For example, entities
supporting SIP version 2 will return 'SIP/2.0' as
dictated by the standard."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipCommonCfgEntry 1 }
sipServiceOperStatus OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
up(2),
down(3),
congested(4),
restarting(5),
quiescing(6),
testing(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the current operational state of
the SIP application.
unknown : The operational status cannot be
Lingle/Maeng/Mule/Walker [Page 15]
Internet-Draft SIP MIB June 2003
determined for some reason.
up : The application is operating normally, and
is processing (receiving and possibly
issuing) SIP requests and responses.
down : The application is currently unable to
process SIP messages.
congested : The application is operational but no
additional inbound transactions can be
accommodated at the moment.
restarting : The application is currently unavailable
but it is in the process of restarting and
will, presumably, soon be able to process
SIP messages.
quiescing : The application is currently operational
but has been administratively put into
quiesce mode. Additional inbound
transactions MAY be rejected.
testing : The application is currently in test mode
and MAY not be able to process SIP
messages.
The operational status values defined for this object
are not based on any specific information contained in
the SIP standard."
::= { sipCommonCfgEntry 2 }
sipServiceAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
noop(1),
up(2),
down(3),
reset(4),
quiesceSessions(5),
quiesceApplication(6)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object is used to affect the overall operational
state of the SIP application. When read, this object
always return a value of noop(1) since
sipServiceOperStatus reflects the actual operational
status.
noop : Setting this object to a noop
value has no effect; when read,
this value is always returned.
up : Enable the application.
down : Abrupt shutdown. Immediately
terminate.
reset : Restart application, reinitialize
data.
quiesceSessions : Enable quiescence mode. Stop
accepting any new SIP sessions.
Lingle/Maeng/Mule/Walker [Page 16]
Internet-Draft SIP MIB June 2003
Stop processing new transactions
except for transactions
associated with an existing
session or call.
quiesceApplications : Enable quiescence mode. Stop
processing new SIP transactions
except for transactions associated
with existing applications. The
exact application behavior SHOULD
be specified by the
implementation."
::= { sipCommonCfgEntry 3 }
sipServiceStartTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at the time the SIP entity was
last started. If started prior to the last
re-initialization of the local network management
subsystem, then this object contains a zero value."
::= { sipCommonCfgEntry 4 }
sipServiceLastChange OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at the time the SIP entity
entered its current operational state. If the current
state was entered prior to the last re-initialization
of the local network management subsystem, then this
object contains a zero value."
::= { sipCommonCfgEntry 5 }
sipOrganization OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object contains the organization name which the
SIP entity inserts into Organization headers of SIP
messages processed by this system. If the string is
empty, no Organization header is to be generated."
REFERENCE
"RFC 3261, Section 20.25"
::= { sipCommonCfgEntry 6 }
sipMaxSessions OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
Lingle/Maeng/Mule/Walker [Page 17]
Internet-Draft SIP MIB June 2003
"This object indicates the maximum number of
simultaneous sessions that the SIP entity can manage."
::= { sipCommonCfgEntry 7 }
sipRequestUriHostMatching OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies whether or not the host in
RequestURI MUST match server's host name.
If the value of this object is 'true', then the server
requires a match, and if the RequestURI doesn't match
the server's host name, a Location Service MAY be used
to obtain information about a callee's possible
location(s) or a 404 Not Found status code is returned
by the server.
If the value is 'false', then no match is required."
REFERENCE
"RFC 3261, Section 8.1.1.1"
::= { sipCommonCfgEntry 8 }
sipServiceNotifEnable OBJECT-TYPE
SYNTAX BITS {
sipServiceColdStart(0),
sipServiceWarmStart(1),
sipServiceStatusChanged(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies which SIP service related
notifications are enabled. Each bit represents
a specific notification. If a bit has a value 1,
the associated notification is enabled and will
be generated by the SIP entity at the approriate
time. The notifications are OPTIONAL, and if they
are not implemented this object's value has no
meaning and MUST be 0. Setting this object in that
circumstance SHOULD result in a badValue error.
If notifications are supported, this object's default
value SHOULD reflect sipServiceColdStart and
sipServiceWarmStart enabled and sipServiceStatusChanged
disabled."
::= { sipCommonCfgEntry 9 }
sipEntityType OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
userAgent(2),
proxyServer(3),
redirectServer(4),
Lingle/Maeng/Mule/Walker [Page 18]
Internet-Draft SIP MIB June 2003
proxyRedirectServer(5),
registrar(6)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the type of SIP entity
this row if related to."
::= { sipCommonCfgEntry 10 }
--
-- Support for multiple ports
--
sipPortTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains the list of ports that each SIP
entity in this system is allowed to use. These ports
can be advertised using the Contact header in a
REGISTER request or response."
::= { sipCommonCfgBase 2 }
sipPortEntry OBJECT-TYPE
SYNTAX SipPortEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Specification of a particular port.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
INDEX { applIndex, sipPort }
::= { sipPortTable 1 }
SipPortEntry ::=
SEQUENCE {
sipPort InetPortNumber,
sipTransportRcv SipTransportProtocol,
sipTransportSnd SipTransportProtocol,
sipPortStatus RowStatus
}
sipPort OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS not-accessible
STATUS current
Lingle/Maeng/Mule/Walker [Page 19]
Internet-Draft SIP MIB June 2003
DESCRIPTION
"This object reflects a particular port that can be used
by the SIP application."
::= { sipPortEntry 1 }
sipTransportRcv OBJECT-TYPE
SYNTAX SipTransportProtocol
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object will specify the transport protocol the SIP
entity will use to receive SIP messages.
This object is a bit map. Each bit represents a
transport protocol. If a bit has value 1, then that
transport protocol is currently being used. If a bit
has value 0, then that transport protocol is currently
not being used."
::= { sipPortEntry 2 }
sipTransportSnd OBJECT-TYPE
SYNTAX SipTransportProtocol
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object will specify the transport protocol the SIP
entity will use to send SIP messages.
This object is a bit map. Each bit represents a
transport protocol. If a bit has value 1, then that
transport protocol is currently being used. If a bit
has value 0, then that transport protocol is currently
not being used."
::= { sipPortEntry 3 }
sipPortStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The row status of the entry. This object is REQUIRED to
create or delete rows by a manager. The row
associated with port 5060 need not be created and
cannot be deleted. It is always present in the table.
It is implementation specific as to whether objects in
this table can be set while a row is 'active'."
::= { sipPortEntry 4 }
--
-- Support for multiple non-SIP URI schemes
--
sipUriSupportedTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipUriSupportedEntry
Lingle/Maeng/Mule/Walker [Page 20]
Internet-Draft SIP MIB June 2003
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains a list of URI schemes supported by
each SIP entity in this system. These are in addition
to the SIP URI which MUST necessarily be supported.
Normally the list of URI schemes supported by an entity
is static (i.e. will not change over time).
A URI is a Uniform Resource Identifier (as defined in
RFC 2396).
URI schemes could, for example, contain URLs for
phones, fax, or irc (if they were defined) or a mailto:
(RFC 2368) URL."
REFERENCE
"RFC 3261, Section 20.10"
::= { sipCommonCfgBase 3 }
sipUriSupportedEntry OBJECT-TYPE
SYNTAX SipUriSupportedEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A particular non-SIP URI supported by the SIP entity.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788).
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
INDEX { applIndex, sipUriSupportedIndex }
::= { sipUriSupportedTable 1 }
SipUriSupportedEntry ::=
SEQUENCE {
sipUriSupportedIndex Unsigned32,
sipUriSupported SnmpAdminString
}
sipUriSupportedIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object uniquely identifies a conceptual row
in the table."
::= { sipUriSupportedEntry 1 }
sipUriSupported OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
Lingle/Maeng/Mule/Walker [Page 21]
Internet-Draft SIP MIB June 2003
STATUS current
DESCRIPTION
"This object indicates a particular non-SIP URI scheme
supported by the SIP entity. Only the scheme itself
(as described in RFC 2396) is indicated. For example,
if the mailto: URLs are supported, then the table entry
contains 'mailto' without the colon."
REFERENCE
"RFC 2396 section 3"
::= { sipUriSupportedEntry 2 }
--
-- Support for features which MAY be requested in Proxy-Require
-- and Require headers
--
sipFtrSupportedTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipFtrSupportedEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains a list of the features
supported by each SIP entity in this system, and which
MAY be REQUIRED by a peer. Definition of non-standard
features is outside the scope of SIP, which only
provides mechanisms whereby support for specific
features MAY be signalled or requested.
As and example of a non-standard feature, a user agent
client MAY require that a server support the
'com.example.billing' feature, which it would
indicate in a Require header. Such a client would have
a row in its sipFtrSupportedTable containing the string
'com.example.billing'. Similarly, a server which is
capable of handling requests for such features would
list the string in its sipFtrSupportedTable.
If a server does not support the required feature
(indicated in a Require header to a UAS, or in a Proxy-
Require to a Proxy Server), the server returns a 420
Bad Extension listing the feature in an Unsupported
header.
Normally the list of such features supported by an
entity is static (i.e. will not change over time)."
REFERENCE
"RFC 3261, Section 19.2"
::= { sipCommonCfgBase 4 }
sipFtrSupportedEntry OBJECT-TYPE
SYNTAX SipFtrSupportedEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
Lingle/Maeng/Mule/Walker [Page 22]
Internet-Draft SIP MIB June 2003
"A particular feature supported by the SIP
entity, and which MAY be REQUIRED by a peer.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788).
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
INDEX { applIndex, sipFtrSupportedIndex }
::= { sipFtrSupportedTable 1 }
SipFtrSupportedEntry ::=
SEQUENCE {
sipFtrSupportedIndex Unsigned32,
sipFtrSupported SnmpAdminString
}
sipFtrSupportedIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object uniquely identifies a conceptual row in the
table."
::= { sipFtrSupportedEntry 1 }
sipFtrSupported OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates a particular feature
which is supported by the SIP entity."
::= { sipFtrSupportedEntry 2 }
--
-- Support for extension methods
--
sipExtMethodSupportedTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipExtMethodSupportedEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains a list of extension methods
supported by each SIP entity in this system. These are
in addition to the standard set of SIP methods
discussed in Section 7.1 of RFC 3261. Any additional
methods that MAY be incorporated into the SIP protocol
SHOULD be represented by this table without any
requirement to update this MIB.
The table is informational in nature; conveying to the
Lingle/Maeng/Mule/Walker [Page 23]
Internet-Draft SIP MIB June 2003
NMS capabilities of the managed system."
::= { sipCommonCfgBase 5 }
sipExtMethodSupportedEntry OBJECT-TYPE
SYNTAX SipExtMethodSupportedEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A particular extension method supported by the SIP
entity.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788).
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
INDEX { applIndex, sipExtMethodSupportedIndex }
::= { sipExtMethodSupportedTable 1 }
SipExtMethodSupportedEntry ::=
SEQUENCE {
sipExtMethodSupportedIndex Unsigned32,
sipExtMethodName SnmpAdminString
}
sipExtMethodSupportedIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object uniquely identifies a conceptual row
in the table."
::= { sipExtMethodSupportedEntry 1 }
sipExtMethodName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the supported extension method's
name. The method name MUST be all upper case (eg,
'FOO')."
::= { sipExtMethodSupportedEntry 2 }
--
-- SIP Timer Configuration
--
sipCommonCfgTimerTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCommonCfgTimerEntry
MAX-ACCESS not-accessible
STATUS current
Lingle/Maeng/Mule/Walker [Page 24]
Internet-Draft SIP MIB June 2003
DESCRIPTION
"This table contains timer configuration objects
applicable to SIP user agent and SIP stateful Proxy
Server entities."
::= { sipCommonCfgTimer 1 }
sipCommonCfgTimerEntry OBJECT-TYPE
SYNTAX SipCommonCfgTimerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of timer configuration.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788).
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
INDEX { applIndex }
::= { sipCommonCfgTimerTable 1 }
SipCommonCfgTimerEntry ::=
SEQUENCE {
sipCfgTimerA Unsigned32,
sipCfgTimerB Unsigned32,
sipCfgTimerC Unsigned32,
sipCfgTimerD Unsigned32,
sipCfgTimerE Unsigned32,
sipCfgTimerF Unsigned32,
sipCfgTimerG Unsigned32,
sipCfgTimerH Unsigned32,
sipCfgTimerI Unsigned32,
sipCfgTimerJ Unsigned32,
sipCfgTimerK Unsigned32,
sipCfgTimerT1 Unsigned32,
sipCfgTimerT2 Unsigned32,
sipCfgTimerT4 Unsigned32
}
sipCfgTimerA OBJECT-TYPE
SYNTAX Unsigned32 (100..1000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the initial value for the
retransmit timer for the INVITE method. The retransmit
timer doubles after each retransmission, ensuring an
exponential backoff in network traffic. This object
represents the initial time a SIP entity will wait to
receive a provisional response to an INVITE before
resending the INVITE request."
Lingle/Maeng/Mule/Walker [Page 25]
Internet-Draft SIP MIB June 2003
REFERENCE
"RFC 3261, Section 17.1.1.2"
DEFVAL { 500 }
::= { sipCommonCfgTimerEntry 1 }
sipCfgTimerB OBJECT-TYPE
SYNTAX Unsigned32 (32000..300000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the maximum time a SIP entity will
wait to receive a final response to an INVITE. The
timer is started upon transmission of the initial INVITE
request."
REFERENCE
"RFC 3261, Section 17.1.1.2"
DEFVAL { 32000 }
::= { sipCommonCfgTimerEntry 2 }
sipCfgTimerC OBJECT-TYPE
SYNTAX Unsigned32 (180000..300000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the maximum time a SIP Proxy
Server will wait to receive a provisional response to
an INVITE. The Timer C MUST be set for each client
transaction when an INVITE request is proxied."
REFERENCE
"RFC 3261, Section 16.6"
DEFVAL { 180000 }
::= { sipCommonCfgTimerEntry 3 }
sipCfgTimerD OBJECT-TYPE
SYNTAX Unsigned32 (0..300000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the amount of time that the
server transaction can remain in the 'Completed' state
when unreliable transports are used. The default value
MUST be greater than 32000 for UDP transport and its
value MUST be 0 for TCP/SCTP transport."
REFERENCE
"RFC 3261, Section 17.1.1.2"
DEFVAL { 32000 }
::= { sipCommonCfgTimerEntry 4 }
sipCfgTimerE OBJECT-TYPE
SYNTAX Unsigned32 (100..1000)
UNITS "milliseconds"
Lingle/Maeng/Mule/Walker [Page 26]
Internet-Draft SIP MIB June 2003
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the initial value for the
retransmit timer for a non-INVITE method while in
'Trying State'. The retransmit timer doubles after each
retransmission until it reaches T2 to ensure an
exponential backoff in network traffic. This object
represents the initial time a SIP entity will wait to
receive a provisional response to the request before
resending the non-INVITE request."
REFERENCE
"RFC 3261, Section 17.1.2.2"
DEFVAL { 500 }
::= { sipCommonCfgTimerEntry 5 }
sipCfgTimerF OBJECT-TYPE
SYNTAX Unsigned32 (32000..300000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the maximum time a SIP entity will
wait to receive a final response to a non-INVITE
request. The timer is started upon transmission of the
initial request."
REFERENCE
"RFC 3261, Section 17.1.2.2"
DEFVAL { 32000 }
::= { sipCommonCfgTimerEntry 6 }
sipCfgTimerG OBJECT-TYPE
SYNTAX Unsigned32 (0..1000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the initial value for the
retransmit timer for final responses to INVITE
requests.
If timer G fires, the response is passed to the
transport layer once more for retransmission, and timer
G is set to fire in MIN(2*T1, T2) seconds. From then
on, when timer G fires, the response is passed to the
transport again for transmission, and timer G is reset
with a value that doubles, unless that value exceeds
T2, in which case it is reset with the value of T2.
The default value MUST be T1 for UDP transport and its
Value MUST be 0 for reliable transport like TCP/SCTP."
REFERENCE
"RFC 3261, Section 17.2.1"
DEFVAL { 500 }
::= { sipCommonCfgTimerEntry 7 }
Lingle/Maeng/Mule/Walker [Page 27]
Internet-Draft SIP MIB June 2003
sipCfgTimerH OBJECT-TYPE
SYNTAX Unsigned32 (32000..300000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the maximum time a server will
wait to receive an ACK before it abandons
retransmitting the response. The timer is started upon
entering the 'Completed' state."
REFERENCE
"RFC 3261, Section 17.2.1"
DEFVAL { 32000 }
::= { sipCommonCfgTimerEntry 8 }
sipCfgTimerI OBJECT-TYPE
SYNTAX Unsigned32 (0..10000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the maximum time a SIP entity
will wait to receive additional ACK message
retransmissions. The timer is started upon entering the
'Confirmed' state. The default value MUST be T4 for UDP
transport and its value MUST be 0 for reliable
transport like TCP/SCTP."
REFERENCE
"RFC 3261, Section 17.2.1"
DEFVAL { 5000 }
::= { sipCommonCfgTimerEntry 9 }
sipCfgTimerJ OBJECT-TYPE
SYNTAX Unsigned32 (32000..300000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the maximum time a SIP server
will wait to receive retransmissions of non-INVITE
request. The timer is started upon entering the
'Completed' state for non-INVITE transactions. When
timer J fires, the server MUST transition to the
'Terminated' state."
REFERENCE "RFC 3261, Section 17.2.2"
DEFVAL { 32000 }
::= { sipCommonCfgTimerEntry 10 }
sipCfgTimerK OBJECT-TYPE
SYNTAX Unsigned32 (0..10000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
Lingle/Maeng/Mule/Walker [Page 28]
Internet-Draft SIP MIB June 2003
"This object specifies the maximum time a SIP client
will wait to receive retransmissions of responses to
non-INVITE requests. The timer is started upon entering
the 'Completed' state for non-INVITE transactions. When
timer K fires, the server MUST transition to the
'Terminated' state. The default value MUST be T4 for
UDP transport and its value MUST be 0 for reliable
transport like TCP/SCTP."
REFERENCE
"RFC 3261, Section 17.1.2.2"
DEFVAL { 5000 }
::= { sipCommonCfgTimerEntry 11 }
sipCfgTimerT1 OBJECT-TYPE
SYNTAX Unsigned32 (200..10000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the T1 timer for a SIP entity. T1
is an estimate of the round-trip time (RTT) between the
client and server transactions."
REFERENCE
"RFC 3261, Section 17"
DEFVAL { 500 }
::= { sipCommonCfgTimerEntry 12 }
sipCfgTimerT2 OBJECT-TYPE
SYNTAX Unsigned32 (200..10000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the T2 timer for a SIP entity.
T2 is the maximum retransmit interval for non-INVITE
requests and INVITE responses. It's used in various
parts of the protocol to reset other Timer* objects
to this value."
REFERENCE
"RFC 3261, Section 17"
DEFVAL { 4000 }
::= { sipCommonCfgTimerEntry 13 }
sipCfgTimerT4 OBJECT-TYPE
SYNTAX Unsigned32 (200..10000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the T4 timer for a SIP entity.
T4 is the maximum duration a message will remain in
the network. It represents the amount of time the
network will take to clear messages between client
and server transactions. It's used in various parts
Lingle/Maeng/Mule/Walker [Page 29]
Internet-Draft SIP MIB June 2003
of the protocol to reset other Timer* objects to this
value."
REFERENCE
"RFC 3261, Section 17"
DEFVAL { 5000 }
::= { sipCommonCfgTimerEntry 14 }
--
-- Initial Timers Extensions: support for extension methods
--
sipCommonCfgTimerExtMethodTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCommonCfgTimerExtMethodEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains retransmit timers for each SIP
extension method this entity supports.
The applicable T2 timer value for timers configured
in this table is that of the sipCfgTimerT2 object
with the same applIndex value."
::= { sipCommonCfgTimer 2 }
sipCommonCfgTimerExtMethodEntry OBJECT-TYPE
SYNTAX SipCommonCfgTimerExtMethodEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This row contains timer value information for
a particular extension method.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788).
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
AUGMENTS { sipExtMethodSupportedEntry }
::= { sipCommonCfgTimerExtMethodTable 1 }
SipCommonCfgTimerExtMethodEntry ::=
SEQUENCE {
sipCfgTimerExtMethodTimer Unsigned32
}
sipCfgTimerExtMethodTimer OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the time a SIP entity will wait
Lingle/Maeng/Mule/Walker [Page 30]
Internet-Draft SIP MIB June 2003
for a response to the extension method request before
retransmitting. The retransmit timer doubles after
each retransmission, ensuring an exponential backoff
in network traffic."
::= { sipCommonCfgTimerExtMethodEntry 1 }
--
-- SIP Retry Configuration
--
sipCommonCfgRetryTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCommonCfgRetryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains retry configuration objects
applicable to SIP user agent and SIP proxies."
::= { sipCommonCfgRetry 1 }
sipCommonCfgRetryEntry OBJECT-TYPE
SYNTAX SipCommonCfgRetryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of retry configuration.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788).
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
INDEX { applIndex }
::= { sipCommonCfgRetryTable 1 }
SipCommonCfgRetryEntry ::=
SEQUENCE {
sipCfgRetryInvite Unsigned32,
sipCfgRetryBye Unsigned32,
sipCfgRetryCancel Unsigned32,
sipCfgRetryRegister Unsigned32,
sipCfgRetryOptions Unsigned32,
sipCfgRetryFinalResponse Unsigned32,
sipCfgRetryNonFinalResponse Unsigned32
}
sipCfgRetryInvite OBJECT-TYPE
SYNTAX Unsigned32 (1..10)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object will specify the number of times a SIP
Lingle/Maeng/Mule/Walker [Page 31]
Internet-Draft SIP MIB June 2003
entity will retry sending an INVITE request."
DEFVAL { 6 }
::= { sipCommonCfgRetryEntry 1 }
sipCfgRetryBye OBJECT-TYPE
SYNTAX Unsigned32 (1..10)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object will specify the number of times a SIP
entity will retry sending a BYE request."
DEFVAL { 6 }
::= { sipCommonCfgRetryEntry 2 }
sipCfgRetryCancel OBJECT-TYPE
SYNTAX Unsigned32 (1..10)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object will specify the number of times a SIP
entity will retry sending a CANCEL request."
DEFVAL { 6 }
::= { sipCommonCfgRetryEntry 3 }
sipCfgRetryRegister OBJECT-TYPE
SYNTAX Unsigned32 (1..10)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object will specify the number of times a SIP
entity will retry sending a REGISTER request."
DEFVAL { 6 }
::= { sipCommonCfgRetryEntry 4 }
sipCfgRetryOptions OBJECT-TYPE
SYNTAX Unsigned32 (1..10)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object will specify the number of times a SIP
entity will retry sending an OPTIONS request."
DEFVAL { 6 }
::= { sipCommonCfgRetryEntry 5 }
sipCfgRetryFinalResponse OBJECT-TYPE
SYNTAX Unsigned32 (1..10)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object will specify the number of times a SIP
entity will retry sending a final response and
expecting an ACK."
DEFVAL { 6 }
::= { sipCommonCfgRetryEntry 6 }
Lingle/Maeng/Mule/Walker [Page 32]
Internet-Draft SIP MIB June 2003
sipCfgRetryNonFinalResponse OBJECT-TYPE
SYNTAX Unsigned32 (1..10)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object will specify the number of times a SIP
entity will retry sending a non-final response."
DEFVAL { 6 }
::= { sipCommonCfgRetryEntry 7 }
--
-- Retry Extensions: support for extension methods
--
sipCommonCfgRetryExtMethodTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCommonCfgRetryExtMethodEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains retry configuration for each SIP
extension method this entity supports."
::= { sipCommonCfgRetry 2 }
sipCommonCfgRetryExtMethodEntry OBJECT-TYPE
SYNTAX SipCommonCfgRetryExtMethodEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This row contains retry configuration information for
a particular extension method.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788).
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
AUGMENTS { sipExtMethodSupportedEntry }
::= { sipCommonCfgRetryExtMethodTable 1 }
SipCommonCfgRetryExtMethodEntry ::=
SEQUENCE {
sipCfgRetryExtMethodRetry Unsigned32
}
sipCfgRetryExtMethodRetry OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the number of times a SIP entity
will retry sending its request for this particular
Lingle/Maeng/Mule/Walker [Page 33]
Internet-Draft SIP MIB June 2003
extension method."
::= { sipCommonCfgRetryExtMethodEntry 1 }
--
-- Per Method Expires Configuration
--
sipCommonCfgExpiresMethodTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCommonCfgExpiresMethodEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains Expires header value configuration
objects applicable to SIP user agent and SIP stateful
Proxy Server entities."
::= { sipCommonCfgExpires 1 }
sipCommonCfgExpiresMethodEntry OBJECT-TYPE
SYNTAX SipCommonCfgExpiresMethodEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of Expires header configuration for SIP Methods.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788).
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
INDEX { applIndex }
::= { sipCommonCfgExpiresMethodTable 1 }
SipCommonCfgExpiresMethodEntry ::=
SEQUENCE {
sipCfgExpiresInvite Unsigned32,
sipCfgExpiresRegister Unsigned32,
sipCfgExpiresHeaderMethod BITS
}
sipCfgExpiresInvite OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"For user agent clients, this value is inserted into the
Expires header.
For Proxy Servers, if a received request contained an
Expires header, then the value in the header takes
precedence."
::= { sipCommonCfgExpiresMethodEntry 1 }
Lingle/Maeng/Mule/Walker [Page 34]
Internet-Draft SIP MIB June 2003
sipCfgExpiresRegister OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"For user agent clients, this value is inserted into the
Expires header.
For Registrar Servers, if a received request contained
an Expires header, then the value in the header takes
precedence."
::= { sipCommonCfgExpiresMethodEntry 2 }
sipCfgExpiresHeaderMethod OBJECT-TYPE
SYNTAX BITS {
invite(0),
register(1)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This convention is a bit map. Each bit represents a
SIP method where the Expires header SHOULD be included.
If a bit has value 1, then the requests corresponding
to that SIP method MUST include an Expires header line.
If a bit has value 0, then the Expires header line will
not be added.
Combinations of bits can be set when the Expires header
line is REQUIRED in multiple SIP methods.
bit 0 : INVITE method.
bit 1 : REGISTER Method."
::= { sipCommonCfgExpiresMethodEntry 3 }
sipCommonCfgExpiresStatusCodeTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCommonCfgExpiresStatusCodeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains the Expires header configuration
objects for the SIP responses."
::= { sipCommonCfgExpires 2 }
sipCommonCfgExpiresStatusCodeEntry OBJECT-TYPE
SYNTAX SipCommonCfgExpiresStatusCodeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This row contains information on the configuration of
the Expires header value for a particular SIP status
code. Examples of SIP responses that MAY include an
Expires header are 302 and 504.
Lingle/Maeng/Mule/Walker [Page 35]
Internet-Draft SIP MIB June 2003
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788).
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
INDEX { applIndex, sipCfgExpiresStatusCodeValue }
::= { sipCommonCfgExpiresStatusCodeTable 1 }
SipCommonCfgExpiresStatusCodeEntry ::=
SEQUENCE {
sipCfgExpiresStatusCodeValue Unsigned32,
sipCfgExpiresHeaderValue Unsigned32,
sipCfgExpiresStatusCodeStatus RowStatus
}
sipCfgExpiresStatusCodeValue OBJECT-TYPE
SYNTAX Unsigned32 (100..999)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object contains a SIP status code value for which
the Expires header value is configured. All of the
other information in the row is related to this value."
::= { sipCommonCfgExpiresStatusCodeEntry 1 }
sipCfgExpiresHeaderValue OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This value is inserted into the Expires header for the
specific status code."
::= { sipCommonCfgExpiresStatusCodeEntry 2 }
sipCfgExpiresStatusCodeStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object is REQUIRED to create or delete rows
by a manager.
A value for sipCfgExpiresHeaderValue MUST be specified
when creating rows by setting this row status to
'createAndGo'. The row will automatically transition
to 'active'.
The configuration specified by an entry will be made
active when this object is set to 'active'."
::= { sipCommonCfgExpiresStatusCodeEntry 3 }
Lingle/Maeng/Mule/Walker [Page 36]
Internet-Draft SIP MIB June 2003
--
-- Common Statistics Objects
--
--
-- Summary Statistics
--
sipSummaryStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipSummaryStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains the summary statistics objects
applicable to all SIP entities. Each row represents
those objects for a particular SIP entity present in
this system."
::= { sipCommonStatsSummary 1 }
sipSummaryStatsEntry OBJECT-TYPE
SYNTAX SipSummaryStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of summary statistics.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
INDEX { applIndex }
::= { sipSummaryStatsTable 1 }
SipSummaryStatsEntry ::=
SEQUENCE {
sipSummaryInRequests Counter32,
sipSummaryOutRequests Counter32,
sipSummaryInResponses Counter32,
sipSummaryOutResponses Counter32,
sipSummaryTotalTransactions Counter32
}
sipSummaryInRequests OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the total number of SIP request
messages received by the SIP entity including
retransmissions."
::= { sipSummaryStatsEntry 1 }
sipSummaryOutRequests OBJECT-TYPE
Lingle/Maeng/Mule/Walker [Page 37]
Internet-Draft SIP MIB June 2003
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the total number of SIP request
messages sent out (originated and relayed) by the SIP
entity. Where a particular message is sent more than
once, for example as a retransmission, or as a result
of forking, each transmission is counted separately."
::= { sipSummaryStatsEntry 2 }
sipSummaryInResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the total number of SIP response
messages received by the SIP entity including
retransmissions."
::= { sipSummaryStatsEntry 3 }
sipSummaryOutResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the total number of SIP response
messages sent (originated and relayed) by the SIP
entity including retransmissions."
::= { sipSummaryStatsEntry 4 }
sipSummaryTotalTransactions OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains a count of the number of
transactions that are in progress and transactions that
have reached the terminated state. It is not
applicable to stateless SIP Proxy Servers.
A SIP transaction occurs between a client and a server
and comprises all messages from the first request sent
from the client to the server up to a final (non-1xx)
response sent from the server to the client.
If the request is INVITE and the final response is a
non-2xx, the transaction also include an ACK to the
response. The ACK for a 2xx response to an INVITE
request is a separate transaction.
The branch ID parameter in the Via header field values
serves as a transaction identifier.
Lingle/Maeng/Mule/Walker [Page 38]
Internet-Draft SIP MIB June 2003
A transaction is identified by the CSeq sequence number
within a single call leg. The ACK request has the same
CSeq number as the corresponding INVITE request, but
comprises a transaction of its own.
In the case of a forked request, all branches count as
a single transaction.
For a transaction stateless Proxy Server, this counter
is always 0."
::= { sipSummaryStatsEntry 5 }
--
-- SIP Method Statistics
-- Total counts for each SIP method.
--
sipMethodStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipMethodStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains the method statistics objects
for SIP entities. Each row represents those objects
for a particular SIP entity present in this system."
::= { sipCommonStatsMethod 1 }
sipMethodStatsEntry OBJECT-TYPE
SYNTAX SipMethodStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of per entity method statistics.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
INDEX { applIndex }
::= { sipMethodStatsTable 1 }
SipMethodStatsEntry ::=
SEQUENCE {
sipStatsInviteIns Counter32,
sipStatsInviteOuts Counter32,
sipStatsAckIns Counter32,
sipStatsAckOuts Counter32,
sipStatsByeIns Counter32,
sipStatsByeOuts Counter32,
sipStatsCancelIns Counter32,
sipStatsCancelOuts Counter32,
sipStatsOptionsIns Counter32,
sipStatsOptionsOuts Counter32,
Lingle/Maeng/Mule/Walker [Page 39]
Internet-Draft SIP MIB June 2003
sipStatsRegisterIns Counter32,
sipStatsRegisterOuts Counter32
}
sipStatsInviteIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of INVITE
requests received by the SIP entity including
retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 1 }
sipStatsInviteOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of INVITE
requests sent by the SIP entity including
retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 2 }
sipStatsAckIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of ACK requests
received by the SIP entity."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 3 }
sipStatsAckOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of ACK requests
sent by the SIP entity."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 4 }
sipStatsByeIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
Lingle/Maeng/Mule/Walker [Page 40]
Internet-Draft SIP MIB June 2003
STATUS current
DESCRIPTION
"This object reflects the total number of BYE requests
received by the SIP entity including retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 5 }
sipStatsByeOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of BYE requests
sent by the SIP entity including retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 6 }
sipStatsCancelIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of CANCEL
requests received by the SIP entity including
retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 7 }
sipStatsCancelOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of CANCEL
requests sent by the SIP entity including
retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 8 }
sipStatsOptionsIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of OPTIONS
requests received by the SIP entity including
retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 9 }
Lingle/Maeng/Mule/Walker [Page 41]
Internet-Draft SIP MIB June 2003
sipStatsOptionsOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of OPTIONS
requests sent by the SIP entity including
retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 10 }
sipStatsRegisterIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of REGISTER
requests received by the SIP entity including
retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 11 }
sipStatsRegisterOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of REGISTER
requests sent by the SIP entity including
retransmissions."
REFERENCE
"RFC 3261, Section 7.1"
::= { sipMethodStatsEntry 12 }
--
-- Support for extension methods
--
sipStatsExtMethodTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipStatsExtMethodEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains the list of extension methods which
each SIP entity in this system has been requested to
monitor."
::= { sipCommonStatsMethod 2 }
sipStatsExtMethodEntry OBJECT-TYPE
SYNTAX SipStatsExtMethodEntry
Lingle/Maeng/Mule/Walker [Page 42]
Internet-Draft SIP MIB June 2003
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This row contains information on a particular extension
method that the SIP entity has been requested to
monitor.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
AUGMENTS { sipExtMethodSupportedEntry }
::= { sipStatsExtMethodTable 1 }
SipStatsExtMethodEntry ::=
SEQUENCE {
sipStatsExtMethodIns Counter32,
sipStatsExtMethodOuts Counter32
}
sipStatsExtMethodIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of requests
received by the SIP entity which requested the method
contained in the sipStatsExtMethodName column including
retransmissions if appropriate for the method."
::= { sipStatsExtMethodEntry 1 }
sipStatsExtMethodOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of requests sent
by the SIP entity which requested the method contained
in the sipStatsExtMethodName column including
retransmissions if appropriate for the method."
::= { sipStatsExtMethodEntry 2 }
--
-- SIP Response Status Codes
--
sipStatusCodeClassesTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipStatusCodeClassesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains statistics on response status code
classes for each SIP entity in this system."
Lingle/Maeng/Mule/Walker [Page 43]
Internet-Draft SIP MIB June 2003
::= { sipCommonStatusCode 1 }
sipStatusCodeClassesEntry OBJECT-TYPE
SYNTAX SipStatusCodeClassesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This row contains statistics on response status codes.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
INDEX { applIndex }
::= { sipStatusCodeClassesTable 1 }
SipStatusCodeClassesEntry ::=
SEQUENCE {
sipStatsInfoClassIns Counter32,
sipStatsInfoClassOuts Counter32,
sipStatsSuccessClassIns Counter32,
sipStatsSuccessClassOuts Counter32,
sipStatsRedirClassIns Counter32,
sipStatsRedirClassOuts Counter32,
sipStatsReqFailClassIns Counter32,
sipStatsReqFailClassOuts Counter32,
sipStatsServerFailClassIns Counter32,
sipStatsServerFailClassOuts Counter32,
sipStatsGlobalFailClassIns Counter32,
sipStatsGlobalFailClassOuts Counter32,
sipStatsOtherClassesIns Counter32,
sipStatsOtherClassesOuts Counter32
}
sipStatsInfoClassIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 1xx class
SIP responses received by the SIP entity.
This class of responses relates to providing some
information concerning the progress of processing
a SIP request."
REFERENCE
"RFC 3261, Section 21.1"
::= { sipStatusCodeClassesEntry 1 }
sipStatsInfoClassOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
Lingle/Maeng/Mule/Walker [Page 44]
Internet-Draft SIP MIB June 2003
"This object reflects the number of 1xx class
SIP responses sent by the SIP entity.
This class of responses relates to providing some
information concerning the progress of processing
a SIP request."
REFERENCE
"RFC 3261, Section 21.1"
::= { sipStatusCodeClassesEntry 2 }
sipStatsSuccessClassIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 2xx class SIP
responses received by the SIP entity. This class of
responses relate to successful completion of a SIP
request."
REFERENCE
"RFC 3261, Section 21.2"
::= { sipStatusCodeClassesEntry 3 }
sipStatsSuccessClassOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 2xx class SIP
responses sent by the SIP entity. This class of
responses relate to successful completion of a SIP
request."
REFERENCE
"RFC 3261, Section 21.2"
::= { sipStatusCodeClassesEntry 4 }
sipStatsRedirClassIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 3xx class SIP
responses received by the SIP entity. This class
of responses relate to redirections to addresses
where the callee might be reachable."
REFERENCE
"RFC 3261, Section 21.3"
::= { sipStatusCodeClassesEntry 5 }
sipStatsRedirClassOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 3xx class SIP
Lingle/Maeng/Mule/Walker [Page 45]
Internet-Draft SIP MIB June 2003
responses sent by the SIP entity. This class
of responses relate to redirections to addresses
where the callee might be reachable."
REFERENCE
"RFC 3261, Section 21.3"
::= { sipStatusCodeClassesEntry 6 }
sipStatsReqFailClassIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 4xx class SIP
responses received by the SIP entity. This class of
responses reflect request failure by a SIP entity
providing a client function."
REFERENCE
"RFC 3261, Section 21.4"
::= { sipStatusCodeClassesEntry 7 }
sipStatsReqFailClassOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 4xx class SIP
responses sent by the SIP entity. This class of
responses reflect request failure by a SIP entity
providing a server function."
REFERENCE
"RFC 3261, Section 21.4"
::= { sipStatusCodeClassesEntry 8 }
sipStatsServerFailClassIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 5xx class SIP
responses received by the SIP entity. This class of
responses reflect failure responses received by a
SIP entity providing a client function."
REFERENCE
"RFC 3261, Section 21.5"
::= { sipStatusCodeClassesEntry 9 }
sipStatsServerFailClassOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 5xx class SIP
responses sent by the SIP entity. This class of
responses reflect failure responses sent by a SIP
Lingle/Maeng/Mule/Walker [Page 46]
Internet-Draft SIP MIB June 2003
entity providing a server function."
REFERENCE
"RFC 3261, Section 21.5"
::= { sipStatusCodeClassesEntry 10 }
sipStatsGlobalFailClassIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 6xx class SIP
responses received by the SIP entity. This class of
responses reflect failure responses received by a
SIP entity providing a client function.
The responses generally indicate that a server has
definitive information about a particular called party,
not just the particular instance indicated in the
Request-URI."
REFERENCE
"RFC 3261, Section 21.6"
::= { sipStatusCodeClassesEntry 11 }
sipStatsGlobalFailClassOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of 6xx class SIP
responses sent by the SIP entity. This class of
responses reflect failure responses sent by a SIP
entity providing a server function.
The responses generally indicate that a server has
definitive information about a particular called party,
not just the particular instance indicated in the
Request-URI."
REFERENCE
"RFC 3261, Section 21.6"
::= { sipStatusCodeClassesEntry 12 }
sipStatsOtherClassesIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the number of SIP responses
received by the SIP entity for status code response
classes other than 1xx, 2xx, 3xx, 4xx, 5xx, or 6xx."
::= { sipStatusCodeClassesEntry 13 }
sipStatsOtherClassesOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
Lingle/Maeng/Mule/Walker [Page 47]
Internet-Draft SIP MIB June 2003
STATUS current
DESCRIPTION
"This object reflects the number of SIP responses
sent by the SIP entity for status code response
classes other than 1xx, 2xx, 3xx, 4xx, 5xx, or 6xx."
::= { sipStatusCodeClassesEntry 14 }
--
-- Support for specific status codes
--
sipStatusCodesTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipStatusCodesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains the list of SIP status codes which
each SIP entity in this system has been requested to
monitor. It is the mechanism by which specific status
codes are monitored."
::= { sipCommonStatusCode 2 }
sipStatusCodesEntry OBJECT-TYPE
SYNTAX SipStatusCodesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This row contains information on a particular SIP
status code that the SIP entity has been requested to
monitor.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
INDEX { applIndex, sipStatusCodeValue }
::= { sipStatusCodesTable 1 }
SipStatusCodesEntry ::=
SEQUENCE {
sipStatusCodeValue INTEGER,
sipStatusCodeIns Counter32,
sipStatusCodeOuts Counter32,
sipStatusCodeRowStatus RowStatus
}
sipStatusCodeValue OBJECT-TYPE
SYNTAX INTEGER (100..999)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object contains a SIP status code value that the
Lingle/Maeng/Mule/Walker [Page 48]
Internet-Draft SIP MIB June 2003
SIP entity has been requested to monitor. All of the
other information in the row is related to this value."
::= { sipStatusCodesEntry 1 }
sipStatusCodeIns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of response
messages received by the SIP entity with the status
code value contained in the sipStatusCodeValue column."
::= { sipStatusCodesEntry 2 }
sipStatusCodeOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of response
messages sent by the SIP entity with the status code
value contained in the sipStatusCodeValue column."
::= { sipStatusCodesEntry 3 }
sipStatusCodeRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The row augmentation in sipStatusCodeNotifTable
will be governed by the value of this RowStatus.
This object is REQUIRED to create or delete rows
by a manager.
The values 'createAndGo' and 'destroy' are the
only valid values allowed for this object.
If a row exists, it will reflect a status of
'active' when queried."
::= { sipStatusCodesEntry 4 }
--
-- support for specific status code notifications
--
sipStatusCodeNotifTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipStatusCodeNotifEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains objects to control notifications
related to particular status codes each SIP entity in
this system has been requested to monitor.
Lingle/Maeng/Mule/Walker [Page 49]
Internet-Draft SIP MIB June 2003
There is an entry in this table corresponding to each
entry in sipStatusCodesTable. Therefore, this
table augments that table and utilizes the same index
methodology.
The objects in this table are not included directly
in the sipStatusCodesTable simply to keep the
status code notification control objects seperate from
the actual status code statistics."
::= { sipCommonStatusCode 3 }
sipStatusCodeNotifEntry OBJECT-TYPE
SYNTAX SipStatusCodeNotifEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This row contains information controlling notifications
for a particular SIP status code that the SIP entity
has been requested to monitor."
AUGMENTS { sipStatusCodesEntry }
::= { sipStatusCodeNotifTable 1 }
SipStatusCodeNotifEntry ::=
SEQUENCE {
sipStatusCodeNotifSend TruthValue,
sipStatusCodeNotifEmitMode INTEGER,
sipStatusCodeNotifThresh Unsigned32,
sipStatusCodeNotifInterval Unsigned32
}
sipStatusCodeNotifSend OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object controls whether a sipStatusCodeNotif
is emitted when the status code value specified in
by sipStatusCodeValue is sent or received.
If the value of this object is 'true', then a
notification is sent. If it is 'false', no
notification is sent.
Note well, that a notification MAY be emitted for
every message sent or received that contains the
particular status code. Depending on the status code
involved, this can cause a significant number of
notification emissions that could be detrimental to
network performance.
Managers are forewarned to be prudent in the use of
this object to enable notifications. Look to
sipStatusCodeNotifEmitMode for alternative
controls for sipStatusCodeNotif emissions."
DEFVAL { false }
::= { sipStatusCodeNotifEntry 1 }
Lingle/Maeng/Mule/Walker [Page 50]
Internet-Draft SIP MIB June 2003
sipStatusCodeNotifEmitMode OBJECT-TYPE
SYNTAX INTEGER {
normal(1),
oneShot(2),
triggered(3) -- read-only
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The object sipStatusCodeNotifSend MUST be set
to 'true' for the values of this object to have any
effect. It is RECOMMENDED that the desired emit mode
be established by this object prior to setting
sipStatusCodeNotifSend to 'true'. This object and
the sipStatusCodeNotifSend object can obviously be
set independently, but their respective values will
have a dependency on each other and the resulting
notifications.
This object specifies the mode for emissions of
sipStatusCodeNotif notifications.
normal : sipStatusCodeNotif notifications will
be emitted by the system for each
SIP response messages sent or received
that contains the desired status code.
oneShot : Only one sipStatusCodeNotif notification
will be emitted. It will be the next
SIP response messages sent or received
that contains the desired status code.
No more notifications are emitted until
this object is set to either 'oneShot'
again or 'normal'. This option is provided
as a means of quelling the potential
promiscuous behavior that can be associated
with the sipStatusCodeNotif.
triggered : This value is only readable and cannot be
set. It reflects the default value of the
object or that the 'oneShot' case has
occurred and indicates the mode needs to
be reset to get further notifications.
The mode is reset by setting this object
to 'oneShot' or 'normal'."
DEFVAL { triggered }
::= { sipStatusCodeNotifEntry 2 }
sipStatusCodeNotifThresh OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
Lingle/Maeng/Mule/Walker [Page 51]
Internet-Draft SIP MIB June 2003
"This object specifies the number of response messages
sent or received by this system that are considered
excessive. Based on crossing that threshold, a
sipStatusCodeThreshExceededInNotif notification or a
sipStatusCodeThreshExceededOutNotif will be sent.
The sipStatusCodeThreshExceededIn/OutNotif can be
used as an early warning mechanism in lieu of using
sipStatusCodeNotif.
Note that the configuration applied by this object
will be applied equally to inbound and outbound
response messages."
DEFVAL { 500 }
::= { sipStatusCodeNotifEntry 3 }
sipStatusCodeNotifInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the time interval over which
if sipCommonStatusCodeThresh is exceeded, with
respect to sent or received messages, a
sipStatusCodeThreshExceededIn/Out notification will
be sent.
Note that the configuration applied by this object
will be applied equally to inbound and outbound
response messages."
DEFVAL { 60 }
::= { sipStatusCodeNotifEntry 4 }
--
-- Transaction Statistics
--
sipCurrentTransTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCurrentTransEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information on the transactions
currently awaiting definitive responses by each SIP
entity in this system.
This table does not apply to transaction stateless
Proxy Servers."
::= { sipCommonStatsTrans 1 }
sipCurrentTransEntry OBJECT-TYPE
SYNTAX SipCurrentTransEntry
MAX-ACCESS not-accessible
STATUS current
Lingle/Maeng/Mule/Walker [Page 52]
Internet-Draft SIP MIB June 2003
DESCRIPTION
"Information on a particular SIP entity's current
transactions.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
INDEX { applIndex }
::= { sipCurrentTransTable 1 }
SipCurrentTransEntry ::=
SEQUENCE {
sipCurrentTransactions Gauge32
}
sipCurrentTransactions OBJECT-TYPE
SYNTAX Gauge32 (0..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the number of transactions
awaiting definitive (non-1xx) response. In the case of
a forked request, all branches count as a single
transaction corresponding to the entity identified by
applIndex."
::= { sipCurrentTransEntry 1 }
--
-- SIP Retry Statistics
--
-- The counter objects in this group correspond directly to the
-- retry timers supported in sipCommonCfgRetry group. applIndex
-- can be used to correlate the two groups.
--
sipCommonStatsRetryTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCommonStatsRetryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains retry statistics objects applicable
to each SIP entity in this system."
::= { sipCommonStatsRetry 1 }
sipCommonStatsRetryEntry OBJECT-TYPE
SYNTAX SipCommonStatsRetryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of retry statistics.
Each row represents those objects for a particular SIP
Lingle/Maeng/Mule/Walker [Page 53]
Internet-Draft SIP MIB June 2003
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
INDEX { applIndex }
::= { sipCommonStatsRetryTable 1 }
SipCommonStatsRetryEntry ::=
SEQUENCE {
sipStatsRetryInvites Counter32,
sipStatsRetryByes Counter32,
sipStatsRetryCancels Counter32,
sipStatsRetryRegisters Counter32,
sipStatsRetryOptions Counter32,
sipStatsRetryFinalResponses Counter32,
sipStatsRetryNonFinalResponses Counter32
}
sipStatsRetryInvites OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of INVITE retries
that have been sent by the SIP entity. If the number
of 'first attempt' INVITES is of interest, subtract the
value of this object from sipStatsInviteOuts."
::= { sipCommonStatsRetryEntry 1 }
sipStatsRetryByes OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of BYE retries
that have been sent by the SIP entity. If the number of
'first attempt' BYEs is of interest, subtract the value
of this object from sipStatsByeOuts."
::= { sipCommonStatsRetryEntry 2 }
sipStatsRetryCancels OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of CANCEL retries
that have been sent by the SIP entity. If the number of
'first attempt' CANCELs is of interest, subtract the
value of this object from sipStatsCancelOuts."
::= { sipCommonStatsRetryEntry 3 }
sipStatsRetryRegisters OBJECT-TYPE
Lingle/Maeng/Mule/Walker [Page 54]
Internet-Draft SIP MIB June 2003
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of REGISTER
retries that have been sent by the SIP entity. If the
number of 'first attempt' REGISTERSs is of interest,
subtract the value of this object from
sipStatsRegisterOuts."
::= { sipCommonStatsRetryEntry 4 }
sipStatsRetryOptions OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of OPTIONS
retries that have been sent by the SIP entity. If the
number of 'first attempt' OPTIONS is of interest,
subtract the value of this object from
sipStatsOptionsOuts."
::= { sipCommonStatsRetryEntry 5 }
sipStatsRetryFinalResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of Final Response
retries that have been sent by the SIP entity."
::= { sipCommonStatsRetryEntry 6 }
sipStatsRetryNonFinalResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of non-Final
Response retries that have been sent by the SIP
entity."
::= { sipCommonStatsRetryEntry 7 }
--
-- Retry Extensions Stats: support for extension methods
--
sipCommonStatsRetryExtMethodTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipCommonStatsRetryExtMethodEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains retry statistics for each SIP
extension method this entity supports."
::= { sipCommonStatsRetry 2 }
Lingle/Maeng/Mule/Walker [Page 55]
Internet-Draft SIP MIB June 2003
sipCommonStatsRetryExtMethodEntry OBJECT-TYPE
SYNTAX SipCommonStatsRetryExtMethodEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This row contains retry statistics for
a particular extension method.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
AUGMENTS { sipExtMethodSupportedEntry }
::= { sipCommonStatsRetryExtMethodTable 1 }
SipCommonStatsRetryExtMethodEntry ::=
SEQUENCE {
sipStatsRetryExtMethodRetries Counter32
}
sipStatsRetryExtMethodRetries OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the total number of retries
sent by the SIP entity for a given extension method."
::= { sipCommonStatsRetryExtMethodEntry 1 }
--
-- Other Common Statistics
--
sipOtherStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipOtherStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains other common statistics supported
by each SIP entity in this system."
::= { sipCommonStatsOther 1 }
sipOtherStatsEntry OBJECT-TYPE
SYNTAX SipOtherStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information on a particular SIP entity's other common
statistics.
Each row represents those objects for a particular SIP
entity present in this system. applIndex is used to
Lingle/Maeng/Mule/Walker [Page 56]
Internet-Draft SIP MIB June 2003
uniquely identify these instances of SIP entities and
correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788)."
INDEX { applIndex }
::= { sipOtherStatsTable 1 }
SipOtherStatsEntry ::=
SEQUENCE {
sipNumUnsupportedUris Counter32
}
sipNumUnsupportedUris OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of RequestURIs received with unsupported scheme.
A server normally responds to such requests with a 400
Bad Request status code."
::= { sipOtherStatsEntry 1 }
--
-- Notification related objects
--
--
-- Status code related notification objects.
--
sipStatusCodeNotifTo OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"This object contains the value of the To header in the
message containing the status code that caused the
notification. The header name will be part of
this object value.
For example, 'To: Watson ."
::= { sipCommonNotifObjects 1 }
sipStatusCodeNotifFrom OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"This object contains the value of the From header in
the message containing the status code that caused the
notification. The header name will be part of
this object value. For example, 'From: Watson '."
::= { sipCommonNotifObjects 2 }
sipStatusCodeNotifCallId OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS accessible-for-notify
Lingle/Maeng/Mule/Walker [Page 57]
Internet-Draft SIP MIB June 2003
STATUS current
DESCRIPTION
"This object contains the value of the CallId in the
message containing the status code that caused the
notification. The header name will be part of
this object value.
For example, 'Call-ID: 5551212@information.com'."
::= { sipCommonNotifObjects 3 }
sipStatusCodeNotifCSeq OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"This object contains the CSeq value in the message
containing the status code that caused the
notification.
The header name will be part of this object value.
For example, 'CSeq: 1722 INVITE'."
::= { sipCommonNotifObjects 4 }
--
-- General notification related objects.
--
sipNotifApplIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..2147483647)
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"This object contains the applIndex as described
in RFC 2788. This object is created in order to
allow a variable binding containing a value of
applIndex in a notification."
::= { sipCommonNotifObjects 5 }
sipNotifSequenceNumber OBJECT-TYPE
SYNTAX Unsigned32 (1..2147483647)
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"This object contains a sequence number for each
notification generated by this SIP entity. Each
notification SHOULD have a unique sequence number.
A network manager can use this information to
determine whether notifications from a particular
SIP entity have been missed. The value of this
object MUST start at 1 and increase by one with
each generated notification. If a system restarts,
the sequence number MAY start again from 1."
::= { sipCommonNotifObjects 6 }
--
-- Notifications
Lingle/Maeng/Mule/Walker [Page 58]
Internet-Draft SIP MIB June 2003
--
sipStatusCodeNotif NOTIFICATION-TYPE
OBJECTS {
sipNotifSequenceNumber,
sipNotifApplIndex,
sipStatusCodeNotifTo,
sipStatusCodeNotifFrom,
sipStatusCodeNotifCallId,
sipStatusCodeNotifCSeq,
sipStatusCodeIns,
sipStatusCodeOuts
}
STATUS current
DESCRIPTION
"Signifies that a specific status code has been sent
or received by the system."
::= { sipCommonMIBNotifs 1 }
sipStatusCodeThreshExceededInNotif NOTIFICATION-TYPE
OBJECTS {
sipNotifSequenceNumber,
sipNotifApplIndex,
sipStatusCodeIns
}
STATUS current
DESCRIPTION
"Signifies that a specific status code was found to
have been received by the system enough to
exceed the configured threshold. This notification
can be used as an early warning mechanism in lieu
of using sipStatusCodeNotif."
::= { sipCommonMIBNotifs 2 }
sipStatusCodeThreshExceededOutNotif NOTIFICATION-TYPE
OBJECTS {
sipNotifSequenceNumber,
sipNotifApplIndex,
sipStatusCodeOuts
}
STATUS current
DESCRIPTION
"Signifies that a specific status code was found to
have been sent by the system enough to
exceed the configured threshold. This notification
can be used as an early warning mechanism in lieu
of using sipStatusCodeNotif."
::= { sipCommonMIBNotifs 3 }
sipServiceColdStart NOTIFICATION-TYPE
OBJECTS {
sipNotifSequenceNumber,
sipNotifApplIndex,
sipServiceStartTime
}
Lingle/Maeng/Mule/Walker [Page 59]
Internet-Draft SIP MIB June 2003
STATUS current
DESCRIPTION
"Signifies that the SIP service has reinitialized
itself or started for the first time. This SHOULD
result from a hard 'down' to 'up' administrative
status change.
The configuration or behavior of the service
MAY be altered."
::= { sipCommonMIBNotifs 4 }
sipServiceWarmStart NOTIFICATION-TYPE
OBJECTS {
sipNotifSequenceNumber,
sipNotifApplIndex,
sipServiceLastChange
}
STATUS current
DESCRIPTION
"Signifies that the SIP service has reinitialized
itself and is restarting after an adminstrative
'reset'. The configuration or behavior of the service
MAY be altered."
::= { sipCommonMIBNotifs 5 }
sipServiceStatusChanged NOTIFICATION-TYPE
OBJECTS {
sipNotifSequenceNumber,
sipNotifApplIndex,
sipServiceLastChange,
sipServiceOperStatus
}
STATUS current
DESCRIPTION
"Signifies that the SIP service operational status
has changed."
::= { sipCommonMIBNotifs 6 }
--
-- Conformance
--
sipCommonMIBCompliances
OBJECT IDENTIFIER ::= { sipCommonMIBConform 1 }
sipCommonMIBGroups
OBJECT IDENTIFIER ::= { sipCommonMIBConform 2 }
--
-- Compliance Statements
--
sipCommonCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
Lingle/Maeng/Mule/Walker [Page 60]
Internet-Draft SIP MIB June 2003
"The compliance statement for SIP entities."
MODULE -- this module
MANDATORY-GROUPS { sipCommonConfigGroup,
sipCommonStatsGroup }
GROUP sipCommonConfigTimerGroup
DESCRIPTION
"This group is OPTIONAL. A SIP entity can elect to
not provide any timer configuration."
GROUP sipCommonConfigTimerExtMethodGroup
DESCRIPTION
"This group is OPTIONAL. A SIP entity can elect to
not provide any extension method timer configuration.
If implemented, the sipCommonConfigTimerGroup MUST also
be implemented because of a dependency on
sipCfgTimerT2."
GROUP sipCommonConfigRetryGroup
DESCRIPTION
"This group is OPTIONAL. A SIP entity can elect to
not provide any retry configuration."
GROUP sipCommonConfigRetryExtMethodGroup
DESCRIPTION
"This group is OPTIONAL. A SIP entity can elect to
not provide any extension method retry configuration."
GROUP sipCommonStatsRetryGroup
DESCRIPTION
"This group is OPTIONAL. A SIP entity can elect to
not provide any retry statistics. If implemented,
the sipCommonConfigRetryGroup MUST also be
implemented."
GROUP sipCommonStatsRetryExtMethodsGroup
DESCRIPTION
"This group is OPTIONAL. A SIP entity can elect to
not provide any extension method retry statistics.
If implemented, the sipCommonConfigRetryExtMethodGroup
MUST also be implemented."
GROUP sipCommonNotifGroup
DESCRIPTION
"This group is OPTIONAL. A SIP entity can elect to
not provide any notifications. If implemented, the
sipCommonStatusCodeNotifGroup MUST also be
implemented."
GROUP sipCommonStatusCodeNotifGroup
DESCRIPTION
"This group is OPTIONAL. A SIP entity can elect to
not provide any notifications. If implemented, the
Lingle/Maeng/Mule/Walker [Page 61]
Internet-Draft SIP MIB June 2003
sipCommonNotifGroup and sipCommonNotifObjectsGroup
MUST also be implemented."
GROUP sipCommonConfigExpiresGroup
DESCRIPTION
"This group is OPTIONAL. A SIP entity can elect to
not provide any Expires header configuration."
-- SMIC compiler problems
-- OBJECT sipStatusCodeRowStatus
-- SYNTAX RowStatus { active(1) }
-- WRITE-SYNTAX RowStatus { createAndGo(4), destroy(6) }
-- DESCRIPTION
-- "Other RowStatus values SHOULD not be supported."
::= { sipCommonMIBCompliances 1 }
--
-- Units of Conformance
--
sipCommonConfigGroup OBJECT-GROUP
OBJECTS {
sipProtocolVersion,
sipServiceOperStatus,
sipServiceAdminStatus,
sipServiceStartTime,
sipServiceLastChange,
sipTransportRcv,
sipTransportSnd,
sipPortStatus,
sipUriSupported,
sipFtrSupported,
sipExtMethodName,
sipOrganization,
sipMaxSessions,
sipRequestUriHostMatching,
sipServiceNotifEnable,
sipEntityType
}
STATUS current
DESCRIPTION
"A collection of objects providing configuration common
to all SIP enities."
::= { sipCommonMIBGroups 1 }
sipCommonConfigTimerGroup OBJECT-GROUP
OBJECTS {
sipCfgTimerA,
sipCfgTimerB,
sipCfgTimerC,
sipCfgTimerD,
sipCfgTimerE,
sipCfgTimerF,
sipCfgTimerG,
Lingle/Maeng/Mule/Walker [Page 62]
Internet-Draft SIP MIB June 2003
sipCfgTimerH,
sipCfgTimerI,
sipCfgTimerJ,
sipCfgTimerK,
sipCfgTimerT1,
sipCfgTimerT2,
sipCfgTimerT4
}
STATUS current
DESCRIPTION
"A collection of objects providing timer configuration
common to all SIP enities."
::= { sipCommonMIBGroups 2 }
sipCommonConfigTimerExtMethodGroup OBJECT-GROUP
OBJECTS {
sipCfgTimerExtMethodTimer
}
STATUS current
DESCRIPTION
"A collection of objects providing extension method
timer configuration."
::= { sipCommonMIBGroups 3 }
sipCommonConfigRetryGroup OBJECT-GROUP
OBJECTS {
sipCfgRetryInvite,
sipCfgRetryBye,
sipCfgRetryCancel,
sipCfgRetryRegister,
sipCfgRetryOptions,
sipCfgRetryFinalResponse,
sipCfgRetryNonFinalResponse
}
STATUS current
DESCRIPTION
"A collection of objects providing retry configuration
common to all SIP enities."
::= { sipCommonMIBGroups 4 }
sipCommonConfigRetryExtMethodGroup OBJECT-GROUP
OBJECTS {
sipCfgRetryExtMethodRetry
}
STATUS current
DESCRIPTION
"A collection of objects providing extension method
retry configuration."
::= { sipCommonMIBGroups 5 }
sipCommonStatsGroup OBJECT-GROUP
OBJECTS {
sipSummaryInRequests,
sipSummaryOutRequests,
Lingle/Maeng/Mule/Walker [Page 63]
Internet-Draft SIP MIB June 2003
sipSummaryInResponses,
sipSummaryOutResponses,
sipSummaryTotalTransactions,
sipStatsInviteIns,
sipStatsInviteOuts,
sipStatsAckIns,
sipStatsAckOuts,
sipStatsByeIns,
sipStatsByeOuts,
sipStatsCancelIns,
sipStatsCancelOuts,
sipStatsOptionsIns,
sipStatsOptionsOuts,
sipStatsRegisterIns,
sipStatsRegisterOuts,
sipStatsExtMethodIns,
sipStatsExtMethodOuts,
sipStatsInfoClassIns,
sipStatsInfoClassOuts,
sipStatsSuccessClassIns,
sipStatsSuccessClassOuts,
sipStatsRedirClassIns,
sipStatsRedirClassOuts,
sipStatsReqFailClassIns,
sipStatsReqFailClassOuts,
sipStatsServerFailClassIns,
sipStatsServerFailClassOuts,
sipStatsGlobalFailClassIns,
sipStatsGlobalFailClassOuts,
sipStatsOtherClassesIns,
sipStatsOtherClassesOuts,
sipStatusCodeIns,
sipStatusCodeOuts,
sipStatusCodeRowStatus,
sipCurrentTransactions,
sipNumUnsupportedUris
}
STATUS current
DESCRIPTION
"A collection of objects providing statistics common
to all SIP entities."
::= { sipCommonMIBGroups 6 }
sipCommonStatsRetryGroup OBJECT-GROUP
OBJECTS {
sipStatsRetryInvites,
sipStatsRetryByes,
sipStatsRetryCancels,
sipStatsRetryRegisters,
sipStatsRetryOptions,
sipStatsRetryFinalResponses,
sipStatsRetryNonFinalResponses
}
STATUS current
Lingle/Maeng/Mule/Walker [Page 64]
Internet-Draft SIP MIB June 2003
DESCRIPTION
"A collection of objects providing retry statistics."
::= { sipCommonMIBGroups 7 }
sipCommonStatsRetryExtMethodsGroup OBJECT-GROUP
OBJECTS {
sipStatsRetryExtMethodRetries
}
STATUS current
DESCRIPTION
"A collection of objects providing extension method
retry statistics."
::= { sipCommonMIBGroups 8 }
sipCommonNotifGroup NOTIFICATION-GROUP
NOTIFICATIONS {
sipStatusCodeNotif,
sipStatusCodeThreshExceededInNotif,
sipStatusCodeThreshExceededOutNotif,
sipServiceColdStart,
sipServiceWarmStart,
sipServiceStatusChanged
}
STATUS current
DESCRIPTION
"A collection of notifications common to all SIP
entities."
::= { sipCommonMIBGroups 9 }
sipCommonStatusCodeNotifGroup OBJECT-GROUP
OBJECTS {
sipStatusCodeNotifSend,
sipStatusCodeNotifEmitMode,
sipStatusCodeNotifThresh,
sipStatusCodeNotifInterval
}
STATUS current
DESCRIPTION
"A collection of objects related to controlling and
attribution of notifications common to all SIP
entities."
::= { sipCommonMIBGroups 10 }
sipCommonConfigExpiresGroup OBJECT-GROUP
OBJECTS {
sipCfgExpiresInvite,
sipCfgExpiresRegister,
sipCfgExpiresHeaderMethod,
sipCfgExpiresHeaderValue,
sipCfgExpiresStatusCodeStatus
}
STATUS current
DESCRIPTION
"A collection of objects providing configuration
Lingle/Maeng/Mule/Walker [Page 65]
Internet-Draft SIP MIB June 2003
related to Expires header."
::= { sipCommonMIBGroups 11 }
sipCommonNotifObjectsGroup OBJECT-GROUP
OBJECTS {
sipStatusCodeNotifTo,
sipStatusCodeNotifFrom,
sipStatusCodeNotifCallId,
sipStatusCodeNotifCSeq,
sipNotifApplIndex,
sipNotifSequenceNumber
}
STATUS current
DESCRIPTION
"A collection of accessible-for-notify objects
related to the notification defined in this
MIB module."
::= { sipCommonMIBGroups 12 }
END
5.3. SIP User Agent
SIP-UA-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
OBJECT-TYPE,
Unsigned32,
mib-2
FROM SNMPv2-SMI
MODULE-COMPLIANCE,
OBJECT-GROUP
FROM SNMPv2-CONF
RowStatus
FROM SNMPv2-TC
applIndex
FROM NETWORK-SERVICES-MIB
InetAddressType,
InetAddress
FROM INET-ADDRESS-MIB;
sipUAMIB MODULE-IDENTITY
LAST-UPDATED "200306250000Z"
ORGANIZATION "IETF SIP Working Group, SIP MIB Team"
CONTACT-INFO
"SIP WG email: sip@ietf.org
Lingle/Maeng/Mule/Walker [Page 66]
Internet-Draft SIP MIB June 2003
Co-editor Kevin Lingle
Cisco Systems, Inc.
postal: 7025 Kit Creek Road
P.O. Box 14987
Research Triangle Park, NC 27709
USA
email: klingle@cisco.com
phone: +1 919 392 2029
Co-editor Joon Maeng
ipDialog, Inc.
postal: 7701 N. Lamar Blvd., Suite 304
Austin, TX 78752-1023
USA
email: jmaeng@ipdialog.com
phone: +1 512 371 1770
Co-editor Dave Walker
SS8 Networks, Inc.
postal: 495 March Road
Kanata, ON K2K 3G1
Canada
email: drwalker@ss8.com
phone: +1 613 592 2100
Co-editor Jean-Francois Mule
CableLabs
postal: 400 Centennial Parkway
Louisville, CO 80027
USA
email: jf.mule@cablelabs.com
phone: +1 303 661 3708 "
DESCRIPTION
"Session Initiation Protocol (SIP) User Agent (UA)
MIB module.
SIP is an application-layer signalling protocol for
creating, modifying and terminating multimedia
sessions with one or more participants. These sessions
include Internet multimedia conferences and Internet
telephone calls. SIP is defined in RFC 3261 (June
2002).
A User Agent is an application that contains both a
User Agent Client (UAC) and a User Agent Server (UAS).
A UAC is an application that initiates a SIP request.
A UAS is an application that contacts the user when a
SIP request is received and that returns a response on
behalf of the user. The response accepts, rejects, or
redirects the request.
Copyright (C) The Internet Society (2003). This
Version of this MIB module is part of RFC XXXX; see
the RFC itself for full legal notices."
Lingle/Maeng/Mule/Walker [Page 67]
Internet-Draft SIP MIB June 2003
-- RFC Ed: replace XXXX with actual RFC number and remove this note
REVISION "200306250000Z"
DESCRIPTION
"Initial version of the IETF SIP-UA-MIB module.
This version published as part of RFC XXXX."
-- RFC Ed: replace XXXX with actual RFC number and remove this note
::= { mib-2 xx }
-- RFC Ed: replace xx with actual IANA assigned number
-- RFC Ed: and remove these notes
-- Top-Level Components of this MIB.
sipUAMIBObjects OBJECT IDENTIFIER ::= { sipUAMIB 1 }
sipUAMIBConform OBJECT IDENTIFIER ::= { sipUAMIB 2 }
--
-- This MIB contains objects related to SIP User Agents.
--
sipUACfgSipServer OBJECT IDENTIFIER ::= { sipUAMIBObjects 1 }
--
-- SIP Server Configuration
--
sipUACfgSipServerTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipUACfgSipServerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains SIP server configuration objects
applicable to each SIP user agent in this system."
::= { sipUACfgSipServer 1 }
sipUACfgSipServerEntry OBJECT-TYPE
SYNTAX SipUACfgSipServerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of server configuration.
Each row represents those objects for a particular SIP
user agent present in this system. applIndex is used
to uniquely identify these instances of SIP user agents
and correlate them through the common framework of the
NETWORK-SERVICES-MIB (RFC 2788). The same value of
applIndex used in the corresponding SIP-COMMON-MIB is
used here.
The objects in this table entry SHOULD be non-volatile
and their value SHOULD be kept at reboot."
INDEX { applIndex, sipUACfgSipServerIndex }
::= { sipUACfgSipServerTable 1 }
SipUACfgSipServerEntry ::=
SEQUENCE {
sipUACfgSipServerIndex Unsigned32,
sipUACfgSipServerAddrType InetAddressType,
Lingle/Maeng/Mule/Walker [Page 68]
Internet-Draft SIP MIB June 2003
sipUACfgSipServerAddr InetAddress,
sipUACfgSipServerStatus RowStatus
}
sipUACfgSipServerIndex OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique identifier of a server address when
multiple addresses are configured by the SIP entity.
If one address isn't reachable, then another can
be tried."
::= { sipUACfgSipServerEntry 1 }
sipUACfgSipServerAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the type of address contained
in the associated instance of sipUACfgSipServerAddr."
REFERENCE "INET-ADDRESS-MIB (RFC 3291)"
DEFVAL { ipv4 }
::= { sipUACfgSipServerEntry 2 }
sipUACfgSipServerAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the address of a SIP server
this user agent will use to proxy/redirect calls."
REFERENCE "INET-ADDRESS-MIB (RFC 3291)"
::= { sipUACfgSipServerEntry 3 }
sipUACfgSipServerStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object is used to control rows in this table.
'active' : the row's information is completely
populated and that information is
being used by the user agent.
'notInService' : the row's address is not being used
by the user agent, but will remain in
the table.
'notReady' : key information is missing thus,
preventing the row from being made
'active' (eg, no address specified).
Lingle/Maeng/Mule/Walker [Page 69]
Internet-Draft SIP MIB June 2003
'createAndGo' : only allowed if the manager also
provides a varbind for
sipUACfgSipServerAddr object in the
same set operation.
'createAndWait' : not applicable.
'destroy' : the row's address will no longer be
used by the user agent and the row
will be removed from the table."
::= { sipUACfgSipServerEntry 4 }
--
-- Conformance
--
sipUAMIBCompliances
OBJECT IDENTIFIER ::= { sipUAMIBConform 1 }
sipUAMIBGroups
OBJECT IDENTIFIER ::= { sipUAMIBConform 2 }
--
-- Compliance Statements
--
sipUACompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SIP entities."
MODULE -- this module
MANDATORY-GROUPS { sipUAConfigGroup }
-- SMIC compiler problems
-- OBJECT sipUACfgSipServerStatus
-- SYNTAX RowStatus { active(1), notReady(3) }
-- WRITE-SYNTAX RowStatus { notInService(2), createAndGo(4),
-- destroy(6) }
-- DESCRIPTION
-- "createAndWait is not applicable."
::= { sipUAMIBCompliances 1 }
--
-- Units of Conformance
--
sipUAConfigGroup OBJECT-GROUP
OBJECTS {
sipUACfgSipServerAddrType,
sipUACfgSipServerAddr,
sipUACfgSipServerStatus
}
STATUS current
DESCRIPTION
"A collection of objects providing configuration for
SIP User Agents."
Lingle/Maeng/Mule/Walker [Page 70]
Internet-Draft SIP MIB June 2003
::= { sipUAMIBGroups 1 }
END
5.4. SIP Server (Registrar, Redirect & Proxy Server)
SIP-SERVER-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
OBJECT-TYPE,
Counter32,
Unsigned32,
Gauge32,
mib-2
FROM SNMPv2-SMI
RowStatus,
TruthValue,
TimeStamp, DateAndTime
FROM SNMPv2-TC
MODULE-COMPLIANCE,
OBJECT-GROUP
FROM SNMPv2-CONF
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB
applIndex
FROM NETWORK-SERVICES-MIB
InetAddressType,
InetAddress
FROM INET-ADDRESS-MIB;
sipServerMIB MODULE-IDENTITY
LAST-UPDATED "200306250000Z"
ORGANIZATION "IETF SIP Working Group, SIP MIB Team"
CONTACT-INFO
"SIP WG email: sip@ietf.org
Co-editor Kevin Lingle
Cisco Systems, Inc.
postal: 7025 Kit Creek Road
P.O. Box 14987
Research Triangle Park, NC 27709
USA
email: klingle@cisco.com
phone: +1 919 392 2029
Co-editor Joon Maeng
ipDialog, Inc.
postal: 7701 N. Lamar Blvd., Suite 304
Lingle/Maeng/Mule/Walker [Page 71]
Internet-Draft SIP MIB June 2003
Austin, TX 78752-1023
USA
email: jmaeng@ipdialog.com
phone: +1 512 371 1770
Co-editor Dave Walker
SS8 Networks, Inc.
postal: 495 March Road
Kanata, ON K2K 3G1
Canada
email: drwalker@ss8.com
phone: +1 613 592 2100
Co-editor Jean-Francois Mule
CableLabs
postal: 400 Centennial Parkway
Louisville, CO 80027
USA
email: jf.mule@cablelabs.com
phone: +1 303 661 3708 "
DESCRIPTION
"Session Initiation Protocol (SIP) Server MIB
module.
SIP is an application-layer signaling protocol for
creating, modifying and terminating multimedia
sessions with one or more participants. These
sessions include Internet multimedia conferences
and Internet telephone calls. SIP is defined in
RFC 3261 (June 2002).
This MIB is defined for the management of SIP
Proxy, Redirect, and Registrar Servers.
A Proxy Server acts as both a client and a server.
It accepts requests from other clients, either
responding to them or passing them on to other
servers, possibly after modification.
A Redirect Server accepts requests from clients and
returns zero or more addresses to that client.
Unlike a User Agent Server it does not accept
calls.
A Registrar is a server that accepts REGISTER
requests. A Registrar is typically co-located with
a Proxy or Redirect Server.
Copyright (C) The Internet Society (2003).
This version of this MIB module is part of RFC
XXXX; see the RFC itself for full legal notices."
-- RFC Ed: replace XXXX with actual RFC number and remove this note
REVISION "200306250000Z"
DESCRIPTION
Lingle/Maeng/Mule/Walker [Page 72]
Internet-Draft SIP MIB June 2003
"Initial version of the IETF SIP-SERVER-MIB module.
This version published as part of RFC XXXX."
-- RFC Ed: replace XXXX with actual RFC number and remove this note
::= { mib-2 yy }
-- RFC Ed: replace yy with actual IANA assigned number and remove
-- this note
-- Top-Level Components of this MIB.
sipServerMIBObjects OBJECT IDENTIFIER ::= { sipServerMIB 1 }
sipServerMIBConform OBJECT IDENTIFIER ::= { sipServerMIB 2 }
--
-- These groups contain objects common to all SIP servers.
--
sipServerCfg OBJECT IDENTIFIER ::= { sipServerMIBObjects 1 }
sipServerStats OBJECT IDENTIFIER ::= { sipServerMIBObjects 2 }
--
-- Common Server Configuration Objects
--
sipServerCfgTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipServerCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains configuration objects applicable
to SIP Redirect and Proxy Servers."
::= { sipServerCfg 1 }
sipServerCfgEntry OBJECT-TYPE
SYNTAX SipServerCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of common configuration.
Each row represents those objects for a particular
SIP server present in this system. applIndex is
used to uniquely identify these instances of SIP
servers and correlate them through the common
framework of the NETWORK-SERVICES-MIB (RFC 2788).
The same value of applIndex used in the
corresponding SIP-COMMON-MIB is used here.
The objects in this table entry SHOULD be non-
volatile and their value SHOULD be kept at reboot."
INDEX { applIndex }
::= { sipServerCfgTable 1 }
SipServerCfgEntry ::=
SEQUENCE {
sipServerHostAddrType InetAddressType,
sipServerHostAddr InetAddress
}
Lingle/Maeng/Mule/Walker [Page 73]
Internet-Draft SIP MIB June 2003
sipServerHostAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The type of Internet address by which the SIP server
is reachable."
REFERENCE
"RFC 3261, Section 19.1.1"
::= { sipServerCfgEntry 1 }
sipServerHostAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This is the host portion of a SIP URI that is
assigned to the SIP server. It MAY contain a fully
qualified domain name, or an IP address. The length
of the value will depend on the type of address
specified. sipServerHostAddrType formalizes the
type of address given by this object. It is the
users responsibility to maintain consistency between
this object and the type specified by
sipServerHostAddrType."
REFERENCE
"RFC 3261, Section 19.1.1"
::= { sipServerCfgEntry 2 }
--
-- This group contains MIB objects related to SIP Proxy
-- Servers.
--
sipProxyCfg OBJECT IDENTIFIER ::= { sipServerMIBObjects 3 }
sipProxyStats OBJECT IDENTIFIER ::= { sipServerMIBObjects 4 }
--
-- Proxy Server Configuration
--
sipProxyCfgTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipProxyCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains configuration objects applicable
to SIP Proxy Servers."
::= { sipProxyCfg 1 }
sipProxyCfgEntry OBJECT-TYPE
SYNTAX SipProxyCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of common proxy configuration.
Lingle/Maeng/Mule/Walker [Page 74]
Internet-Draft SIP MIB June 2003
Each row represents those objects for a particular
SIP server present in this system. applIndex is
used to uniquely identify these instances of SIP
servers and correlate them through the common
framework of the NETWORK-SERVICES-MIB (RFC 2788).
The same value of applIndex used in the
corresponding SIP-COMMON-MIB is used here.
The objects in this table entry SHOULD be non-
volatile and their value SHOULD be kept at reboot."
INDEX { applIndex }
::= { sipProxyCfgTable 1 }
SipProxyCfgEntry ::=
SEQUENCE {
sipRequestMaxExpires Unsigned32,
sipProxyStatefulness INTEGER,
sipProxySendsCancel TruthValue,
sipProxyForwardAll1xx TruthValue,
sipProxyRecursion TruthValue,
sipProxyProvideAlternatives TruthValue,
sipProxyRecordRoute TruthValue,
sipProxyAuthMethod BITS,
sipProxyAuthRealm SnmpAdminString,
sipProxyNonceLifeTime Unsigned32
}
sipRequestMaxExpires OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the maximum duration that a
SIP server will accept from a client in the Expires
header."
REFERENCE
"RFC 3261 Section 20.19"
::= { sipProxyCfgEntry 1 }
sipProxyStatefulness OBJECT-TYPE
SYNTAX INTEGER {
stateless(1),
transactionStateful(2),
callStateful(3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the default mode of operation
for the Proxy Server entity.
A stateless proxy is a logical entity that does not
maintain the client or server transaction state
Lingle/Maeng/Mule/Walker [Page 75]
Internet-Draft SIP MIB June 2003
machines when it processes requests. A stateless
proxy forwards every request it receives downstream
and every response it receives upstream. If the
value of this object is stateless(1), the proxy
defaults to stateless operations.
A transaction stateful proxy, or simply a 'stateful
proxy', is a logical entity that maintains the
client and server transaction state machines during
the processing of a request. A (transaction)
stateful proxy is not the same as a call stateful
proxy. If the value if this object is
transactionStateful(2), the proxy is stateful on a
transaction basis.
A call stateful proxy is a logical entity if it
retains state for a dialog from the initiating \
INVITE to the terminating BYE request. A call
stateful proxy is always transaction stateful, but
the converse is not necessarily true. If the value
of this object is callStateful(3), the proxy is call
stateful."
REFERENCE
"RFC 3261, Section 16"
::= { sipProxyCfgEntry 2 }
sipProxySendsCancel OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies whether or not a forking proxy
sends CANCEL on outstanding branch requests after
receiving a 2xx or 6xx, or after the request times-
out.
If the value of this object is 'true', the server
Sends a CANCELs on branches where no definitive
response has been received. If 'false', the proxy
does not send CANCELs."
REFERENCE
"RFC 3261, Section 10"
::= { sipProxyCfgEntry 3 }
sipProxyForwardAll1xx OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies whether or not the proxy
forwards all 1xx responses, except the 100 Trying
response, upstream towards the source of the
request.
Lingle/Maeng/Mule/Walker [Page 76]
Internet-Draft SIP MIB June 2003
If the value of this object is 'true', the 1xx
responses are sent. If the value is 'false',
duplicate 1xx responses are not sent upstream."
::= { sipProxyCfgEntry 4 }
sipProxyRecursion OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies whether or not the Proxy
performs recursive search on the Contacts provided
in 3xx redirects.
If the value of this object is 'true', a recursive
search is performed. If the value is 'false', no
search is performed, the 3xx response is sent
upstream towards the source of the request."
REFERENCE
"RFC 3261 Sections 16.5 and 16.6"
::= { sipProxyCfgEntry 5 }
sipProxyProvideAlternatives OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The object specifies whether or not the Server
provides alternative Contacts in 3xx and 485
responses.
If the value of this object is 'true', the server
inserts a list of alternative URIs into a Contact
header where the request Originator may possibly
find the desired called party. If the value is
'false', the server doesn't add Contact information
to 3xx and 485 responses.
Note that the policies of a server MAY limit the
particular alternatives that are returned when this
object is set to 'true'."
REFERENCE
"RFC 3261, Sections 13.2.2.2 and 16.5"
DEFVAL { true }
::= { sipProxyCfgEntry 6 }
sipProxyRecordRoute OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies whether or not the proxy adds
itself to the Record-Route header as a default
Lingle/Maeng/Mule/Walker [Page 77]
Internet-Draft SIP MIB June 2003
action. This header is used to list the proxies
that insist on being in the signaling path for
subsequent requests related to a call-leg.
If the value of this object is 'true', the proxy
adds itself to the end of the Record-Route header,
creating the header if required. If the value is
'false', the proxy does not add itself to the
Record-Route header."
REFERENCE
"RFC 3261, Section 20.30"
::= { sipProxyCfgEntry 7 }
--
-- Security
--
sipProxyAuthMethod OBJECT-TYPE
SYNTAX BITS {
none(0),
tls(1),
digest(2),
smime(3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the authentication methods
that MAY be used to authenticate request
originators.
bit 0 no authentication is performed
bit 1 TLS is used
bit 2 HTTP Digest is used
bit 3 S/MIME is used."
REFERENCE
"RFC 3261 Sections 22, 23, 26, 26.2.3"
::= { sipProxyCfgEntry 8 }
sipProxyAuthRealm OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the realm used in Proxy-
Authenticate headers. Note that this MAY need to be
stored per user."
REFERENCE
"RFC 3261, Section 22.1"
::= { sipProxyCfgEntry 9 }
sipProxyNonceLifeTime OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
UNITS "milliseconds"
Lingle/Maeng/Mule/Walker [Page 78]
Internet-Draft SIP MIB June 2003
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the lifetime of a given nonce.
A nonce is a server specified value whose contents
are opaque to the entity being authenticated and
which is used in calculating authentication data.
If this object has a value of zero, then nonces are
not reused."
::= { sipProxyCfgEntry 10 }
--
-- Proxy Server Statistics
--
sipProxyStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipProxyStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains the statistics objects
applicable to all SIP Proxy Servers in this system."
::= { sipProxyStats 1 }
sipProxyStatsEntry OBJECT-TYPE
SYNTAX SipProxyStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of summary statistics.
Each row represents those objects for a particular
SIP server present in this system. applIndex is
used to uniquely identify these instances of SIP
servers and correlate them through the common
framework of the NETWORK-SERVICES-MIB (RFC 2788).
The same value of applIndex used in the
corresponding SIP-COMMON-MIB is used here."
INDEX { applIndex }
::= { sipProxyStatsTable 1 }
SipProxyStatsEntry ::=
SEQUENCE {
sipNumProxyRequireFailures Counter32
}
sipNumProxyRequireFailures OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the number of occurrences of
unsupported options being specified in received
Proxy-Require headers. Such occurrences result in a
Lingle/Maeng/Mule/Walker [Page 79]
Internet-Draft SIP MIB June 2003
420 Bad Extension status code being returned."
::= { sipProxyStatsEntry 1 }
--
-- This group contains MIB objects related to SIP Redirect
-- Servers.
--
sipRedirCfg OBJECT IDENTIFIER ::= { sipServerMIBObjects 5 }
sipRedirStats OBJECT IDENTIFIER ::= { sipServerMIBObjects 6 }
-- none at this time
--
-- This group contains MIB objects related to SIP Registrars.
--
sipRegCfg OBJECT IDENTIFIER ::= { sipServerMIBObjects 7 }
sipRegStats OBJECT IDENTIFIER ::= { sipServerMIBObjects 8 }
--
-- Registrar Configuration
--
sipRegCfgTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipRegCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains configuration objects applicable
SIP Registrars."
::= { sipRegCfg 1 }
sipRegCfgEntry OBJECT-TYPE
SYNTAX SipRegCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of common Registrar configuration.
Each row represents those objects for a particular
SIP server present in this system. applIndex is
used to uniquely identify these instances of SIP
servers and correlate them through the common
framework of the NETWORK-SERVICES-MIB (RFC 2788).
The same value of applIndex used in the
corresponding SIP-COMMON-MIB is used here."
INDEX { applIndex }
::= { sipRegCfgTable 1 }
SipRegCfgEntry ::=
SEQUENCE {
sipRegAllowThirdParty TruthValue,
sipRegMaxContactExpiryDuration Unsigned32,
sipRegMaxUsers Unsigned32,
sipRegCurrentUsers Gauge32,
sipRegDfltRegActiveInterval Unsigned32
Lingle/Maeng/Mule/Walker [Page 80]
Internet-Draft SIP MIB June 2003
}
sipRegAllowThirdParty OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies whether or not the Registrar
SHOULD allow third party registrations. In third-
party registration, the entity issuing the request
(in the From header) is different from the entity
being registered (in the To header) to whom the
provided Contact information applies.
If the value of thsipRegAllowThirdPartyis object is
'true', the Registrar allows third-party
registrations. If the value is 'false', third-party
registrations are rejected: a 403 (Forbidden) status
code is returned to the requester.
This object SHOULD be non-volatile and its value
SHOULD be kept at reboot."
REFERENCE
"RFC 3261, Section 10.2"
::= { sipRegCfgEntry 1 }
sipRegMaxContactExpiryDuration OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the maximum expiry that may be
requested by a User Agent for a particular Contact.
User Agents can specify expiry using either an
Expiry header in a REGISTER request, or using an
Expires parameter in a Contact header in a REGISTER
request. If the value requested by the User Agent
is greater than the value of this object, then the
contact information is given the duration specified
by this object, and that duration is indicated to
the User Agent in the response."
DEFVAL { 4294967295 }
::= { sipRegCfgEntry 2 }
sipRegMaxUsers OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the maximum number of users
that the Registrar supports. The current number of
users is reflected by sipRegCurrentUsers."
::= { sipRegCfgEntry 3 }
Lingle/Maeng/Mule/Walker [Page 81]
Internet-Draft SIP MIB June 2003
sipRegCurrentUsers OBJECT-TYPE
SYNTAX Gauge32 (0..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the number of users currently
configured on the Registrar."
::= { sipRegCfgEntry 4 }
sipRegDfltRegActiveInterval OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the default time interval the
Registrar considers registrations to be active. The
value is used to compute the Expires header in the
REGISTER response. If a user agent requests a time
interval shorter than specified by this object, the
Registrar SHOULD honor that request. If a Contact
entry does not have an 'expires' parameter, the
value of the Expires header field is used instead.
If a Contact entry has no 'expires' parameter and no
the Expires header field is present, the value of
this object is used as the default value.
This object SHOULD be non-volatile and its value
SHOULD be kept at reboot."
REFERENCE "RFC 3261, Section 10.2"
::= { sipRegCfgEntry 5 }
--
-- Per User Information
--
sipRegUserTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipRegUserEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information on all users
registered to each Registrar in this system."
::= { sipRegCfg 2 }
sipRegUserEntry OBJECT-TYPE
SYNTAX SipRegUserEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This entry contains information for a single user
registered to this Registrar.
Each row represents those objects for a particular
Lingle/Maeng/Mule/Walker [Page 82]
Internet-Draft SIP MIB June 2003
SIP server present in this system. applIndex is
used to uniquely identify these instances of SIP
servers and correlate them through the common
framework of the NETWORK-SERVICES-MIB (RFC 2788).
The same value of applIndex used in the
corresponding SIP-COMMON-MIB is used here."
INDEX { applIndex, sipUserIndex }
::= { sipRegUserTable 1 }
SipRegUserEntry ::=
SEQUENCE {
sipUserIndex Unsigned32,
sipUserUri SnmpAdminString,
sipUserAuthenticationFailures Counter32,
sipUserTableRowStatus RowStatus
}
sipUserIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object uniquely identifies a conceptual row in
the table."
::= { sipRegUserEntry 1 }
sipUserUri OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object contains the user's address-of-record.
It is the main form by which the Registrar knows the
user. The format is typically 'user@domain'. It is
contained in the To header for all REGISTER
requests."
::= { sipRegUserEntry 2 }
sipUserAuthenticationFailures OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains a count of the number of times
the user has failed authentication."
::= { sipRegUserEntry 3 }
sipUserTableRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The row status of the entry. This object is required
to create or delete rows remotely by a manager."
Lingle/Maeng/Mule/Walker [Page 83]
Internet-Draft SIP MIB June 2003
::= { sipRegUserEntry 4 }
--
-- Per Contact Information
--
sipContactTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipContactEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information on every location
where a registered user (specified by sipUserIndex)
wishes to be found (i.e. the user has provided
Contact information to each SIP Registrar in this
system)."
::= { sipRegCfg 3 }
sipContactEntry OBJECT-TYPE
SYNTAX SipContactEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This entry contains information for a single
Contact. Multiple contacts may exist for a single
user.
Each row represents those objects for a particular
SIP server present in this system. applIndex is
used to uniquely identify these instances of SIP
servers and correlate them through the common
framework of the NETWORK-SERVICES-MIB (RFC 2788).
The same value of applIndex used in the
corresponding SIP-COMMON-MIB is used here."
INDEX { applIndex, sipUserIndex, sipContactIndex }
::= { sipContactTable 1 }
SipContactEntry ::=
SEQUENCE {
sipContactIndex Unsigned32,
sipContactDisplayName SnmpAdminString,
sipContactURI SnmpAdminString,
sipContactLastUpdated TimeStamp,
sipContactExpiry DateAndTime,
sipContactPreference SnmpAdminString,
sipContactRetryAfter DateAndTime
}
sipContactIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Along with the sipUserIndex, this object uniquely
identifies a conceptual row in the table."
Lingle/Maeng/Mule/Walker [Page 84]
Internet-Draft SIP MIB June 2003
::= { sipContactEntry 1 }
sipContactDisplayName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the display name for the
Contact.
For example, 'Santa at Home', or 'Santa on his
Sled', corresponding to contact URIs of
sip:BigGuy@sip.northpole.ca or
sip:sclaus817@sip.mobile.com, respectively."
::= { sipContactEntry 2 }
sipContactURI OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains either a SIP URI where
the user can be contacted. This URI is normally
returned to a client from a Redirect Server, or is
used as the RequestURI in a SIP request line for
requests forwarded by a proxy."
::= { sipContactEntry 3 }
sipContactLastUpdated OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the time when this contact
information was accepted. If the contact
information is updated via a subsequent REGISTER of
the same information, this object is also updated."
::= { sipContactEntry 4 }
sipContactExpiry OBJECT-TYPE
SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the date and time when the
contact information will no longer be valid. Such
times may be specified by the user at registration
(Expires header or expiry parameter in the Contact
information), or a system default can be applied."
::= { sipContactEntry 5 }
sipContactPreference OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
Lingle/Maeng/Mule/Walker [Page 85]
Internet-Draft SIP MIB June 2003
DESCRIPTION
"This object indicates a relative preference for the
particular Contact header field value compared to
other bindings for this address-of-record. A
registering user may provide this preference as a
'qvalue'parameter in the Contact header.
The format of this item is a decimal number between
0 and 1 (for example 0.9). Higher values indicate
locations preferred by the user."
REFERENCE
"RFC 3261, Section 10.2.1.2, 16.6 and 20.10"
::= { sipContactEntry 6 }
sipContactRetryAfter OBJECT-TYPE
SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates that the contact information
is currently inactive, and that it SHOULD only be
activated after the date and time specified by the
object. This value is provided by a user when
deleting contact information using a REGISTER
request containing a Retry-After header."
REFERENCE
"RFC 3261, Section 20.33"
::= { sipContactEntry 7 }
--
-- Registrar Statistics
--
sipRegStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF SipRegStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains the summary statistics objects
applicable to all SIP Registrars in this system."
::= { sipRegStats 1 }
sipRegStatsEntry OBJECT-TYPE
SYNTAX SipRegStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row of summary statistics.
Each row represents those objects for a particular
SIP server present in this system. applIndex is
used to uniquely identify these instances of SIP
servers and correlate them through the common
framework of the NETWORK-SERVICES-MIB (RFC 2788).
Lingle/Maeng/Mule/Walker [Page 86]
Internet-Draft SIP MIB June 2003
The same value of applIndex used in the
corresponding SIP-COMMON-MIB is used here."
INDEX { applIndex }
::= { sipRegStatsTable 1 }
SipRegStatsEntry ::=
SEQUENCE {
sipRegAcceptedRegistrations Counter32,
sipRegRejectedRegistrations Counter32
}
sipRegAcceptedRegistrations OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains a count of the number of
REGISTER requests that have been accepted (status
code 200) by the Registrar. This includes additions
of new contact information, refreshing contact
information, as well as requests for deletion of
contact information."
::= { sipRegStatsEntry 1 }
sipRegRejectedRegistrations OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains a count of the number REGISTER
requests that have been rejected by the Registrar."
::= { sipRegStatsEntry 2 }
--
-- Conformance
--
sipServerMIBCompliances
OBJECT IDENTIFIER ::= { sipServerMIBConform 1 }
sipServerMIBGroups
OBJECT IDENTIFIER ::= { sipServerMIBConform 2 }
--
-- Compliance Statements
--
sipProxyServerCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SIP entities acting
as Proxy Servers."
MODULE -- this module
MANDATORY-GROUPS { sipServerConfigGroup,
sipProxyConfigGroup,
sipProxyStatsGroup }
Lingle/Maeng/Mule/Walker [Page 87]
Internet-Draft SIP MIB June 2003
::= { sipServerMIBCompliances 1 }
sipRedirectServerCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SIP entities acting
as Redirect Servers."
MODULE -- this module
MANDATORY-GROUPS { sipServerConfigGroup }
::= { sipServerMIBCompliances 2 }
sipRegistrarServerCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SIP entities acting
as Registrars."
MODULE -- this module
MANDATORY-GROUPS { sipServerConfigGroup,
sipRegistrarConfigGroup,
sipRegistrarStatsGroup }
::= { sipServerMIBCompliances 3 }
--
-- Units of Conformance
--
sipServerConfigGroup OBJECT-GROUP
OBJECTS {
sipServerHostAddrType,
sipServerHostAddr
}
STATUS current
DESCRIPTION
"A collection of objects providing configuration
common to SIP Proxy and Redirect servers."
::= { sipServerMIBGroups 1 }
sipProxyConfigGroup OBJECT-GROUP
OBJECTS {
sipRequestMaxExpires,
sipProxyStatefulness,
sipProxySendsCancel,
sipProxyForwardAll1xx,
sipProxyRecursion,
sipProxyProvideAlternatives,
sipProxyRecordRoute,
sipProxyAuthMethod,
sipProxyAuthRealm,
sipProxyNonceLifeTime
}
STATUS current
DESCRIPTION
"A collection of objects providing configuration for
SIP Proxy servers."
::= { sipServerMIBGroups 2 }
Lingle/Maeng/Mule/Walker [Page 88]
Internet-Draft SIP MIB June 2003
sipProxyStatsGroup OBJECT-GROUP
OBJECTS {
sipNumProxyRequireFailures
}
STATUS current
DESCRIPTION
"A collection of objects providing statistics for
SIP Proxy servers."
::= { sipServerMIBGroups 3 }
sipRegistrarConfigGroup OBJECT-GROUP
OBJECTS {
sipRegAllowThirdParty,
sipRegMaxContactExpiryDuration,
sipRegMaxUsers,
sipRegCurrentUsers,
sipRegDfltRegActiveInterval,
sipUserUri,
sipUserAuthenticationFailures,
sipUserTableRowStatus,
sipContactDisplayName,
sipContactURI,
sipContactLastUpdated,
sipContactExpiry,
sipContactPreference,
sipContactRetryAfter
}
STATUS current
DESCRIPTION
"A collection of objects providing configuration for
SIP Registrars."
::= { sipServerMIBGroups 4 }
sipRegistrarStatsGroup OBJECT-GROUP
OBJECTS {
sipRegAcceptedRegistrations,
sipRegRejectedRegistrations
}
STATUS current
DESCRIPTION
"A collection of objects providing statistics for
SIP Registrars."
::= { sipServerMIBGroups 5 }
END
6. Changes from previous drafts
o Changes from draft-ietf-sip-mib-05
Front paper/Back paper and General changes
o Removed all references and special handling of SIP INFO method
Removed references and objects specific to RFC 2976: INFO will be
Lingle/Maeng/Mule/Walker [Page 89]
Internet-Draft SIP MIB June 2003
treated as any SIP extension method.
o Changed requirements verbs from lowercase to uppercase wherever
appropriate.
o Added RFC Editor notes.
o Updated all REFERENCE clauses and DESCRIPTIONS from RFC 2543
to RFC 3261.
o Explained the approach taken for extension methods that might be
defined in the future.
o Defined a mapping of sipServiceOperStatus to applOperStatus.
o Enhanced Security section with details on various objects.
o Added descriptive language to various Entry objects regarding
the expected persistence of data across system restarts.
SIP-COMMON-MIB
o Removed sipTransactionTable after input from SIP community.
o Made all extension method tables augmentations of
sipExtMethodSupportedTable. This resulted in the removal
of the following objects: sipCfgTimerExtMethodName,
sipCfgRetryExtMethodName, sipStatsExtMethodName,
sipStatsRetryExtMethodName.
o sipCommonStatusCodeNotifEmitMode default value changed to
'triggered'.
o sipStatusCodeThreshExceededNotif was replaced by two
notifications: sipStatusCodeThreshExceededOutNotif &
sipStatusCodeThreshExceededInNotif.
o Re-arranged the enumerated value of sipServiceOperStatus; making
'unknown' the first value. Added some words to the DESCRIPTION
of that object stating the values are not based on anything in
the SIP standard.
o Clarified rules for capitalization of sipExtMethodName.
o All counters in the MIB are consistent with respect to
resetting to zero. No counters can be reset to zero.
Entries in sipStatusCodesTable can simply be created or
destroyed - no ability to set to 'notInService' where there
was the question/possibility of resetting the counters to zero.
sipStatsExtMethodTable no longer has itÃÆs own RowStatus object,
so it too can no longer be set to 'notInServiceÆ where there
was the question/possibility of resetting the counters to zero.
Lingle/Maeng/Mule/Walker [Page 90]
Internet-Draft SIP MIB June 2003
sipStatsExtMethodTable rows are augmentations of
sipExtMethodSupportedEntry.
o OBJECT refinement for sipStatusCodeRowStatus added to compliance.
o Clarified the relationship between
sipCommonStatusCodeNotifEmitMode and sipCommonStatusCodeNotifSend.
o Explained the existence of sipNotifApplIndex object better.
o sipCfgExpiresStatusCodeValue syntax changed from INTEGER to
Unsigned32.
o sipEntityType object added to sipCommonCfgTable.
o All accessible-for-notify objects are moved into
sipCommonNotifObjects group. OIDs for actual notifications
are re-assigned as a result.
o sipNotifSequenceNumber accessible-for-notify object added as a
way for managers to gain insight into possible missed
notifications. It is bound to each notification defined in
the MIB.
o New notifications related to SIP service operational status are
added: sipServiceColdStart, sipServiceWarmStart, &
sipServiceLastChanged.
o New object sipServiceNotifEnable added to control the new SIP
related notifications.
o Minor object descriptor changes:
sipStatusCodesTable renamed to sipStatusCodeClassesTable
SipStatusCodesEntry renamed to SipStatusCodeClassesEntry
sipStatusCodesEntry renamed to sipStatusCodeClassesEntry
sipCommonStatusCodeTable renamed to sipStatusCodesTable
SipCommonStatusCodeEntry renamed to SipStatusCodesEntry
sipCommonStatusCodeEntry renamed to sipStatusCodesEntry
sipCommonStatusCodeValue renamed to sipStatusCodeValue
sipCommonStatusCodeIns renamed to sipStatusCodeIns
sipCommonStatusCodeOuts renamed to sipStatusCodeOuts
sipCommonStatusCodeStatus renamed to sipStatusCodeRowStatus
sipCommonStatusCodeNotifTable renaemd to sipStatusCodeNotifTable
SipCommonStatusCodeNotifEntry renamed to SipStatusCodeNotifEntry
sipCommonStatusCodeNotifEntry renamed to sipStatusCodeNotifEntry
sipCommonStatusCodeNotifSend renamed to sipStatusCodeNotifSend
sipCommonStatusCodeNotifEmitMode renamed to
sipStatusCodeNotifEmitMode
sipCommonStatusCodeNotifThresh renamed to sipStatusCodeNotifThresh
sipCommonStatusCodeNotifInterval renamed to
sipStatusCodeNotifInterval
o Removed all INFO method specific objects:
sipCfgRetryInfo, sipStatsInfoIns, sipStatsInfoOuts, &
Lingle/Maeng/Mule/Walker [Page 91]
Internet-Draft SIP MIB June 2003
sipStatsRetryInfos
o Clarifying words added to sipStatusCodeNotifTable
DESCRIPTION to explain why it's a seperate table from
sipStatusCodesTable.
SIP-SERVER-MIB
o Deleted objects related to 'actionÆ parameter.
RFC 3261 section 10.2 deprecates the 'actionÆ parameter
=> deleted 3 objects:
- sipServerContactDfltAction, sipServerRespectUAAction
- sipContactAction.
o Deleted pgp-related objects.
RFC 3261 section 23 deprecates use of pgp
=> deleted 3 objects:
- sipProxyAuthPgpAlgorithm, sipPgpPrivateKey, sipPgpVersion.
o Removed sipProxyStateTimeout object.
Timers G and timer H have been introduced in RFC 3261 for this
purpose (see RFC 3261 section 17.2.1).
o Updated description clause of sipProxyStatefulness.
The 3 definitions of stateless/statefulness now match the text
in RFC 3261.
o Changed DEFVAL for object sipProxyProvideAlternatives.
Changed DEFVAL to true to align with RFC 3261 that states that 485
responses SHOULD contain a contact header & 303 MAY... and updated
REFERENCE clause to "RFC 3261 Sections 13.2.2.2 and 16.5".
o Removed basic authentication value from sipProxyAuthMethod object
Per section 22 of rfc 3261, deprecated.
o Changed SYNTAX of sipProxyNonceLifeTime from Integer32 to
Unsigned32.
o Updated description clause of sipRegDfltRegActiveInterval
Per RFC 3261 Section 10.2.
SIP-UA-MIB
o OBJECT refinement for sipUACfgSipServerStatus added to compliance.
o Changed the object descriptors of sipUACfgSipServerAddrIndex to
sipUACfgSipServerIndex, and sipUACfgSipServerAddrStatus to
sipUACfgSipServerStatus.
Lingle/Maeng/Mule/Walker [Page 92]
Internet-Draft SIP MIB June 2003
o Changes from draft-ietf-sip-mib-04
Started realignment with SIP RFC3261.
o Changes from draft-ietf-sip-mib-03
These are the specific draft-ietf-sip-mib-04 changes to the MIB
modules based on what they looked like for draft-ietf-sip-mib-03.
Front paper/Back paper
o Rewrote parts of section 4.2
o Fixed minor editorial nits
SIP-COMMON-MIB
o CONTACT-INFO "SIP MIB email" changed to sip@ietf.org
o sipInviteTimeout was removed from the MIB. See below regarding
new sipCommonCfgExpires objects. They provide equivalent
functionality with extensibility beyond INVITE.
o sipCommonCfgExpires OID subtree added. Per method Expires
configuration objects were added there.
This new high-level OID was placed under the existing
sipCommonCfgRetry OID and therefore, caused the OIDs for the
subsequent groups to change (incrementing by one).
o Objects from tables under sipCommonCfgExpires were added to a new
OBJECT-GROUP sipCommonConfigExpiresGroup, and that group was listed
as optional in sipCommonCompliance.
o Minor DESCRIPTION change for sipCommonCfgEntry. No behavior
change.
o sipServiceOperStatus SYNTAX changed.
New values added: congested & quiescing
Old values removed: halted
The order of the enumeration was altered as well.
o sipServiceAdminStatus SYNTAX changed.
New values added: noop, up, down, quieseSessions, and
quieseApplications
Old values removed: shutdown, restart, stop, rts.
These changes were made based on comments from last call reviewer
and general known ambiguities in the previous design of the object.
o Clarifying changes to the DESCRIPTION of sipServiceStartTime.
o Clarifying changes to the DESCRIPTION of sipOrganization.
o Clarification of behavior for sipPortStatus while row is
Lingle/Maeng/Mule/Walker [Page 93]
Internet-Draft SIP MIB June 2003
'active'.
o Clarifying changes to the DESCRIPTION of sipUriSupportedTable
o Clarifying changes to the DESCRIPTIONs of sipFtrSupportedTable,
sipFtrSupportedEntry, and sipFtrSupported.
Specifically, IETF standard features and non-standard features are
now represented by this table. Only non-standard features were
mentioned in prior revisions of the draft.
o Reference to usage of RFC 2788 applIndex moved from
sipCommonCfgTimerExtMethodTable to
sipCommonCfgTimerExtMethodEntry.
This was the convention for other table/entry definitions in
the MIB, so these objects were previously unconventional.
o DEFVAL removed from sipCfgTimerExtMethodTimer. The generic nature
of the "extension" object does not lend itself to being able to
specify a particular default value.
o Since the removal of the DEFVAL clause from
sipCfgTimerExtMethodTimer,
a value for that object must be specified when creating a
sipCommonCfgTimerExtMethodEntry. The description of
sipCfgTimerExtMethodStatus was updated to reflect this.
o sipCommonCfgRetryExtMethodTable is now properly defined under
sipCommonCfgRetry OID space instead of under sipCommonCfgTimer
OID space.
o DEFVAL removed from sipCfgRetryExtMethodRetry. The generic nature
of the "extension" object does not lend itself to being able to
specify a particular default value.
o Since the removal of the DEFVAL clause from
sipCfgRetryExtMethodRetry,
a value for that object must be specified when creating a
sipCommonCfgRetryExtMethodEntry. The description of
sipCfgRetryExtMethodStatus was updated to reflect this.
o Clarifying changes to the DESCRIPTION of
sipSummaryTotalTransactions.
Specifically, the object is not applicable to stateless SIP proxy
servers and the object should always return a value of 0 if
implemented by a stateless proxy.
o Clarifying changes to the DESCRIPTION of sipStatsExtMethodStatus.
o sipStatsOtherClassesIns and sipStatsOtherClassesOuts counter
objects were added to sipStatusCodesTable to handle possible
future classes of response status codes.
o Text referring specifically to Redirect Server in
sipStatsRedirClassIns and sipStatsRedirClassOuts was removed.
Lingle/Maeng/Mule/Walker [Page 94]
Internet-Draft SIP MIB June 2003
o Text defining protocol behavior in sipStatsServerFailClassIns,
sipStatsServerFailClassOuts, sipStatsGlobalFailClassIns, and
sipStatsGlobalFailClassOuts was removed.
o sipCommonStatusCodeNotifInterval SYNTAX changed from TimeTicks
to Unsigned32 w/ a UNITS of "seconds" added to the definition.
DEFVAL clause changed accordingly.
o sipStatusCodeNotifTo, sipStatusCodeNotifFrom,
sipStatusCodeNotifCallId,
and sipStatusCodeNotifCSeq all had clarifying changes to their
DESCRIPTIONs. Specifically, the header name will be part of the
object value and example values were given.
o Clarifying changes to the DESCRIPTION of sipCurrentTransTable
and sipTransactionTable. Specifically, these tables are not
applicable to transaction stateless SIP Proxy Servers.
o Minor gramatical change to the DESCRIPTION of
sipCurrentTransEntry.
o sipTransMethod and sipTransActivityInfo objects were added to
sipTransactionTable while sipTransCallingPartyContentType and
sipTransCalledPartyContentType were removed.
o Clarifying changes to the DESCRIPTION of sipTransState.
Specifically, noting that not all values of the object
are applicable to all transaction types.
o sipTransTo, sipTransFrom, sipTransCallId, and sipTransCSeq
all had clarifying changes to their DESCRIPTIONs.
Specifically, the header name will be part of the object
value and example values were given.
o Minor gramatical change to the DESCRIPTION of sipOtherStatsEntry.
o sipCommonStatusCodeIns and sipCommonStatusCodeOuts objects were
added to the varbind of sipStatusCodeNotif.
o Appropriate changes were made to sipCommonStatsGroup OBJECT-GROUP
based on objects being added and/or removed from the MIB.
SIP-SERVER-MIB
o CONTACT-INFO "SIP MIB email" changed to sip@ietf.org
o The statement "Unlike a Proxy server it does not initiate
requests." was removed from where a Redirect Server is
defined in the MIB's DESCRIPTION.
o sipServerMIBNotifs OID removed. No notifications were
Lingle/Maeng/Mule/Walker [Page 95]
Internet-Draft SIP MIB June 2003
ever defined under this subtree.
o Clarifying text added to all of the Table DESCRIPTIONS
stating that the value of applIndex used in this MIB
corresponds to the value of applIndex used in the
SIP-COMMON-MIB.
o Clarifying changes to the DESCRIPTION of sipProxyStatefulness.
o sipContactPreference SYNTAX changed from OCTET STRING to
SnmpAdminString.
SIP-UA-MIB
o CONTACT-INFO "SIP MIB email" changed to sip@ietf.org
o sipUAMIBNotifs OID removed. No notifications were
ever defined under this subtree.
o sipUAStats OID removed. No notifications were
ever defined under this subtree.
o Clarifying text added to all of the Table DESCRIPTIONS
stating that the value of applIndex used in this MIB
corresponds to the value of applIndex used in the
SIP-COMMON-MIB.
SIP-TC
o CONTACT-INFO "SIP MIB email" changed to sip@ietf.org
o Changes from draft-ietf-sip-mib-02
The following changes were made based on review comments to the
previous version of the draft.
In general
o Eliminated the SIP-MIB-SMI modules. Each MIB module will now
get it's own IANA OID.
o Top-level OID subtrees restructured in each MIB.
o General cleanup/removal of "placeholder" OID subtrees
for object groups and notifications that never materialized.
Regarding SIP-COMMON-MIB
o Removed sipCfgInitialTimerAck.
o Removed sipCfgRetryAck.
o Removed sipStatsRetryAcks.
Lingle/Maeng/Mule/Walker [Page 96]
Internet-Draft SIP MIB June 2003
o sipCommonStatsRetryExtMethodEntry was missing its INDEX
clause.
o sipNumUnsupportedUris OID was "5" when it was the
only object in the table. OID is now "1".
o High-level OID structure of the MIB is now sequential.
o Incorrect object descriptor for sipCfgInitialTimerRsp
inconsistent with reference in compliance section.
o Inconsistencies between sipCommonStatsRetryGroup definition
and SipCommonStatsRetryEntry OBJECT-TYPE corrected.
o sipNotifApplIndex was not in any object group in the
conformance section.
Regarding SIP-SERVER-MIB
o Removed sipInformationTryingInterval.
o Removed sipRxProxyAuthTable.
o Removed sipRegRespHasContacts.
o Removed sipRegContactDfltExpiryDate.
o Removed sipRegContactDfltExpiryDuration.
o Removed sipUserPassword.
o sipRequestMaxExpires DESCRIPTION changed to no
longer specifically mention 400 response.
o sipProxyStateful object descriptor changed to
sipProxyStatefullness and the SYNTAX changed
from TruthValue to an enumerated INTEGER.
o sipProxyStateTimeout DESCRIPTION changed to now reflect only
INVITE.
o Gauge32 was not being IMPORTed.
o sipServerContactDfltAction showed up in conformance
and other object descriptions in an older form.
o sipServerHost replaced with InetAddressType/InetAddress
object pair (sipServerHostAddrType & sipServerHostAddr).
Regarding SIP-UA-MIB
o IMPORTed Unsigned32 to support sipUACfgSipServerAddrIndex.
o sipUACfgSipServerEntry was referencing the wrong
auxilliary object and listing that object in the conformance
section.
o sipUACfgSipServerEntry listed sipUACfgSipServerStatus
when it should have been listing sipUACfgSipServerAddrStatus.
o SIP-UA-MIB IMPORTed Counter32, but never used it.
Removed the IMPORT of Counter32.
7. Security Considerations
There are a number of management objects defined in this MIB module
with a MAX-ACCESS clause of read-write and/or read-create. Such
objects may be considered sensitive or vulnerable in some network
environments. The support for SET operations in a non-secure
environment without proper protection can have a negative effect on
network operations.
These are the tables and objects and their
sensitivity/vulnerability:
Lingle/Maeng/Mule/Walker [Page 97]
Internet-Draft SIP MIB June 2003
o SIP-COMMON-MIB
The following read-write object is used to control the overall SIP
service in any SIP entity:
sipServiceAdminStatus
If this object is SET maliciously, it may result in unwanted
operational status, or a failure to obtain SIP services.
The following read-write and read-create objects are used to control
the behavior of the SIP protocol as exhibited by a SIP entity:
sipOrganization,
sipRequestUriHostMatching,
sipCfgTimerA,
sipCfgTimerB,
sipCfgTimerC,
sipCfgTimerD,
sipCfgTimerE,
sipCfgTimerF,
sipCfgTimerG,
sipCfgTimerH,
sipCfgTimerI,
sipCfgTimerJ,
sipCfgTimerK,
sipCfgTimerT1,
sipCfgTimerT2,
sipCfgTimerT4,
sipCfgTimerExtMethodTimer,
sipCfgRetryInvite,
sipCfgRetryBye,
sipCfgRetryCancel,
sipCfgRetryRegister,
sipCfgRetryOptions,
sipCfgRetryFinalResponse,
sipCfgRetryNonFinalResponse,
sipCfgRetryExtMethodRetry,
sipCfgExpiresInvite,
sipCfgExpiresRegister,
sipCfgExpiresHeaderMethod,
sipCfgExpiresHeaderValue,
sipCfgExpiresStatusCodeStatus,
If these objects are SET maliciously, it may result in incorrect or
unwanted protocol operation.
The following read-create object is used to configure the status
code statistics that will be monitored by the SIP entity:
sipStatusCodeRowStatus
If this object is SET maliciously, it may result in an over
allocation of resources in a system for the purpose of accumulating
and maintaining statistics.
The following read-write objects are used to configure the behavior
of certain SNMP notifications potentially generated by a SIP entity:
sipStatusCodeNotifSend,
sipStatusCodeNotifEmitMode,
Lingle/Maeng/Mule/Walker [Page 98]
Internet-Draft SIP MIB June 2003
sipStatusCodeNotifThresh,
sipStatusCodeNotifInterval,
sipServiceNotifEnable
If these objects are SET maliciously, it may result in a system
and/or network performance impact due to the generation of SNMP
notifications.
o SIP-UA-MIB
The following read-create objects are used to configure the Internet
address of SIP servers a SIP User Agent will use to proxy/redirect
SIP calls:
sipUACfgSipServerAddrType,
sipUACfgSipServerAddr,
sipUACfgSipServerStatus.
If these objects are SET maliciously, it may result in unwanted
operation, or a failure to obtain SIP services from the user agent
prospective or even theft of service. In particular, setting the
SipUACfgSipServerStatus object instance to the ÃædestroyÃÆ value may
result in service disruption.
o SIP-SERVER-MIB
The following read-create objects are managed by Registrar Servers
and contain sensitive or private information about the address of
record of registered users.
sipUserUri
sipUserTableRowStatus
The sensitivity of these objects depends on the role that Registrar
Servers play in the SIP service. In some cases, these objects, if
SET maliciously, may allow unregistered users to steal service, or
may prevent registered users from accessing the SIP service.
The following read-write objects, if SET maliciously will have an
immediate serious impact on the service:
sipServerHostAddrType & sipServerHostAddr -
- these objects specify
the host part of the URI for the server providing the SIP resource
and it is widely used by SIP servers in numerous header lines and
field. For e.g., the host address may be used with the Request-URI
to check if the server is the one resolved by the Request-URI,
therefore determining whether to process or forward the request in
the case of outbound proxies, or, as an another common example, it
is used by Proxy Servers acting as strict routers to rewrite the
Request-URI. Setting these objects with improper values may result
in serious service interference or failure.
sipRequestMaxExpires and sipRegMaxContactExpiryDuration: if set
to a zero value and either SIP requests contain an Expires header or
Contact header contain an expires parameter, may cause the server to
never create bindings associated with an address of record (case of
REGISTER request) or may cause server to expire and cancel
invitations (case of INVITE request).
Lingle/Maeng/Mule/Walker [Page 99]
Internet-Draft SIP MIB June 2003
sipProxyStatefulness: changing the value of this object affects
how transaction states are being handled the Proxy Server and may
result in call feature or service changes.
SipProxyAuthMethod: this object specifies at a maximum what the
authentication methods that may be used by a server. If this object
is SET maliciously, it may alter how the level of security used by
the server to generate requests and may compromise the network
security policies.
sipRegAllowThirdParty: depending on the authentication policy
associated with registration services, setting this object
maliciously to ÃætrueÃÆ may allow theft of identity or service.
sipProxyAuthRealm: if this object is SET improperly, and if the
HTTP Digest authentication method is used, it may result in clients
being unable to authenticate and ultimately, in the server denying
service.
The remaining read-write objects, if SET maliciously may have some
effect on the service:
SipProxySendsCancel: this is a configuration object defining how
a certain class of proxy servers (forking proxies) handle
cancellation of outstanding branch requests. If this object was set
to true and is maliciously changed to false, the impact is
considered moderate: the forking proxy may simply terminate the
outstanding branches at a later phase, either when a transaction
timer expires or when subsequent messages arrive from the
outstanding branches.
sipProxyRecordRoute: setting this object to true may cause
additional SIP traffic to cross the proxy server and may result in
message avalanches.
The threats posed by the following read-write objects can either be
mitigated by other configuration settings like read-only objects or
they are considered to cause additional server operations without
immediate impact on the server like additional location look-ups
(sipProxyProvideAlternatives), additional traffic due to expiration
of nonce (sipProxyNonceLifeTime).
sipProxyForwardAll1xx
sipProxyRecursion
sipProxyProvideAlternatives
sipProxyNonceLifeTime
sipRegDfltRegActiveInterval
Some of the readable objects in the MIB modules (i.e., objects with
a MAX-ACCESS other than not-accessible) may be considered sensitive
or vulnerable in some network environments. It is thus important to
control even GET and/or NOTIFY access to these objects and possibly
to even encrypt the values of these objects when sending them over
the network via SNMP.
o SIP-SERVER-MIB
Lingle/Maeng/Mule/Walker [Page 100]
Internet-Draft SIP MIB June 2003
The following object values may contain private or confidential
customer information like first name, last name, customer
identification, location, company affiliation, the time the
information was updated, etc.
SipContactDisplayName,
SipContactURI,
SipContactLastUpdated.
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPSec),
even then, there is no control as to who on the secure network is
allowed to access and GET/SET (read/change/create/delete) the
objects in this MIB module.
It is RECOMMENDED that implementers consider the security features
as provided by the SNMPv3 framework (see [RFC3410], section 8),
including full support for the SNMPv3 cryptographic mechanisms (for
authentication and privacy).
Further, deployment of SNMP versions prior to SNMPv3 is NOT
RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to
enable cryptographic security. It is then a customer/operator
responsibility to ensure that the SNMP entity giving access to an
instance of this MIB module is properly configured to give access to
the objects only to those principals (users) that have legitimate
rights to indeed GET or SET (change/create/delete) them.
8. Intellectual Property
The IETF takes no position regarding the validity or scope of any
intellectual property or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; neither does it represent that it
has made any effort to identify any such rights. Information on the
IETF's procedures with respect to rights in standards-track and
standards-related documentation can be found in BCP-11. Copies of
claims of rights made available for publication and any assurances
of licenses to be made available, or the result of an attempt made
to obtain a general license or permission for the use of such
proprietary rights by implementors or users of this specification
can be obtained from the IETF Secretariat.
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights which may cover technology that may be required to practice
this standard. Please address the information to the IETF Executive
Director.
9. Full Copyright Statement
Lingle/Maeng/Mule/Walker [Page 101]
Internet-Draft SIP MIB June 2003
Copyright (C) The Internet Society (2003). All Rights Reserved.
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph
are included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Lingle/Maeng/Mule/Walker [Page 102]
Internet-Draft SIP MIB June 2003
10. Normative References
[RFC2026] Bradner, S., "The Internet Standards Process -
- Revision
3", BCP 9, RFC 2026, October 1996.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2578] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M. and S. Waldbusser, "Structure of Management
Information Version 2 (SMIv2)", STD 58, RFC 2578, April
1999.
[RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M. and S. Waldbusser, "Textual Conventions for
SMIv2", STD 58, RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M. and S. Waldbusser, "Conformance Statements for
SMIv2", STD 58, RFC 2580, April 1999.
[RFC2788] Freed, N. and S. Kille, "Network Services Monitor MIB",
RFC 2788, March 2000.
[RFC3261] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston,
A., Peterson, J., Sparks, R., Handley, M. and E. Schooler,
"SIP: Session Initiation Protocol", RFC 3261, June 2002.
[RFC3291] Daniele, M., Haberman, B., Routhier, S. and J.,
Schoenwaelder "Textual Conventions for Internet Network
Addresses", RFC 3291, May 2002.
11. Informative References
[RFC3410] Case, J., Mundy, R., Partain, D. and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.
[RFC3291] Daniele, M., Haberman, B., Routhier, S., Schoenwaelder,
J., "Textual Conventions for Internet Network Addresses",
RFC 3291, May 2002.
[RFC2368] Hoffman, P., Masinter, L., Zawinski, J., "The mailto URL
scheme", RFC 2368, July 1998.
[RFC2396] Berners-Lee, T., Fielding, R., Masinter, L., "Uniform
Resource Identifiers (URI): Generic Syntax", RFC 2396,
August 1998.
Lingle/Maeng/Mule/Walker [Page 103]
Internet-Draft SIP MIB June 2003
12. Acknowledgments
We wish to thank the members of the IETF SIP & SIPPING working groups &
the SIP-MIB Design team for their comments and suggestions. Detailed
comments were provided by Tom Taylor, Kavitha Patchayappan and Dan
Romascanu.
13. Author's Addresses
Kevin Lingle
Cisco Systems, Inc.
7025 Kit Creek Road
P.O. Box 14987
Research Triangle Park, NC 27709
USA
email: klingle@cisco.com
phone: +1 919 392 2029
Joon Maeng
ipDialog, Inc.
7701 N. Lamar Blvd., Suite 304
Austin, TX 78752-1023
USA
email: jmaeng@ipdialog.com
phone: +1 512 371 1770
Jean-Francois MuleÃÆ
CableLabs
400 Centennial Parkway
Louisville, CO 80027
USA
email: jfm@cablelabs.com
mibs@cablelabs.com
phone: +1 303 661 9100
Dave Walker
SS8 Networks, Inc.
495 March Road
Kanata, ON K2K 3G1
Canada
email: drwalker@ss8.com
phone: +1 613 592 2100
Lingle/Maeng/Mule/Walker [Page 104]
Html markup produced by rfcmarkup 1.129d, available from
https://tools.ietf.org/tools/rfcmarkup/