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Versions: 00 01 02 03 RFC 2940

Internet Draft                                                   A. Smith
Expires September 2000                                   Extreme Networks
draft-ietf-rap-cops-client-mib-02.txt                          D. Partain
                                                                 Ericsson
                                                              J. Seligson
                                                          Nortel Networks
                                                               March 2000

Definitions of Managed Objects for Common Open Policy Service (COPS)
                            Protocol Clients


                          Status of this Memo

This document is an Internet Draft and is in full conformance with all
provisions of Section 10 of 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.
Internet Drafts may be updated, replaced, or obsoleted by other
documents at any time.  It is not appropriate to use Internet Drafts as
reference material or to cite them other than as a "working draft" or
"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 document is a product of the IETF's RSVP Admission Policy Working
Group.  Copyright (C) The Internet Society (2000).  All Rights Reserved.


Abstract

This memo defines a portion of the Management Information Base (MIB) for
use with network management protocols in TCP/IP based internets.  In
particular it defines objects for managing a client of the Common Open
Policy Service (COPS) protocol.

This memo includes a MIB module in a manner that is compliant to the
SNMPv2 SMI [V2SMI].






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1.  The SNMP Management Framework

The SNMP Management Framework presently consists of five major
components:

    o   An overall architecture, described in an Architecture for
        Describing SNMP Management Frameworks [ARCH].

    o   Mechanisms for describing and naming objects and events for the
        purpose of management.  The first version of this Structure of
        Management Information (SMI) is called SMIv1 and described in
        RFC 1155 [V1SMI], STD 16, RFC 1212 [V1CONCISE] and RFC 1215
        [V1TRAPS].  The second version, called SMIv2, is described in
        STD 58, RFC 2578 [V2SMI], STD 58, RFC 2579 [V2TC] and STD 58,
        RFC 2580 [V2CONFORM].

    o   Message protocols for transferring management information.  The
        first version of the SNMP message protocol is called SNMPv1 and
        described in STD 15, RFC 1157 [V1PROTO].  A second version of
        the SNMP message protocol, which is not an Internet standards
        track protocol, is called SNMPv2c and described in RFC 1901
        [V2COMMUNITY] and RFC 1906 [V2TRANS].  The third version of the
        message protocol is called SNMPv3 and described in RFC1906
        [V2TRANS], Message Processing and Dispatching [V3MPC] and User-
        based Scurity Model [V3USM].

    o   Protocol operations for accessing management information.  The
        first set of protocol operations and associated PDU formats is
        described in STD 15, RFC 1157 [V1PROTO].  A second set of
        protocol operations and associated PDU formats is described in
        RFC 1905 [V2PROTO].

    o   A set of fundamental applications described in SNMPv3
        Applications [V3APPS] and the view-based access control
        mechanism described in View-based Access Control Model [V3VACM].

A more detailed introduction to the current SNMP Management Framework
can be found in RFC 2570 [V3INTRO].

Managed objects are accessed via a virtual information store, termed the
Management Information Base or MIB.  Objects in the MIB are defined
using the mechanisms defined in the SMI.

This memo specifies a MIB module that is compliant to the SMIv2.  A MIB
conforming to the SMIv1 can be produced through the appropriate





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translations. The resulting translated MIB must be semantically
equivalent, except where objects or events are omitted because no
translation is possible (use of Counter64). Some machine readable
information in SMIv2 will be converted into textual descriptions in
SMIv1 during the translation process. However, this loss of machine
readable information is not considered to change the semantics of the
MIB.


2.  Overview

The COPS protocol [COPS] is a client-server protocol intended for the
communication of policy requests and decisions between a Policy
Enforcement Point (PEP) and a Policy Decision Point (PDP). The PEP acts
as a COPS client in this scenario.  The model for policy out-sourcing,
of which the COPS protocol provides one part, is described in
[FRAMEWORK].

2.1.  Scope

This MIB is intended to provide management of the important features of
a COPS protocol client module. It does not provide management for a COPS
server - this is outside the scope of the current memo.  It provides for
monitoring of status and protocol statistics, as well as for
configuration of the client, in particular for telling it where to
locate its servers. Other mechanisms for achieving this function without
SNMP configuration might include use of the Service Location Protocol
[SRVLOC] although this is outside the scope of this memo and are not
specified by the COPS protocol itself.

This MIB also does not provide management of specific COPS client-types
e.g. for use with the RSVP protocol [RSVP][COPSRSVP].


3.  Structure of COPS Client MIB

Objects in this MIB are arranged into groups.  Each group is organized
as a set of related objects. The overall structure is described below.

3.1.  copsClientCapabilitiesGroup

     This group contains objects that represent COPS protocol
     capabilities implemented by this COPS client.







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3.2.  copsClientStatusGroup

     This group contains objects that indicate the current status of
     connection(s) to COPS servers, including per-server protocol
     statistics.  It maintains last-known statistics for all of the
     servers with which the client has ever been connected since agent
     restart.

3.3.  copsConfigGroup

     This group contains objects that allow for configuration of COPS
     server addresses and the order to which connections should be
     attempted. It contains a table of per-server objects as well as
     scalars for configuration of the retry algorithm to be used by a
     client to obtain a connection to an appropriate server.

3.4.  Textual Conventions

     The datatypes CopsClientState, CopsServerEntryType, CopsErrorCode,
     CopsTcpPort and CopsAuthType are used as textual conventions in
     this document.  These textual conventions have NO effect on either
     the syntax nor 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.

3.5.  Relationship to Other MIBs

3.5.1.  Relationship to the 'system' group

     This MIB contains definitions for a single COPS protocol client
     represented by a single SNMP agent and instance of the MIB-2 system
     group [MIB2].  It does not address the case of multiple co-located
     COPS protocol clients.


4.  Editorial information

<this section will be removed before publication>









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4.1.  Open Issues resolved in this draft

(10) Configuration parameters for the retry algorithm are too limiting
     on implementations (no such algorithm was specified by the COPS
     protocol itself). DONE - objects which were per-server are now
     scalars; a possibly-configurable object is added to select/indicate
     the retry algorithm in use with round-robin, sequential and other
     as values.

(11) copsClientServerConfigRetryCount should be unsigned: DONE - changed
     from Integer32 to Unsigned32.

4.2.  Open Issues resolved in previous drafts

(1)  When should per-server counters (e.g. copsClientServerInPkts) be
     zeroed? Resolution: see issue (3).

(2)  Addressing of server tables by IP Address is frowned on: should
     this be indexed by a client-determined small integer? DONE - added
     InetEndpoint indices as recommended by draft-ops-endpoint-
     mib-00.txt.

(3)  Should error stats be maintained per-server or is global
     sufficient? If per-server then see also issue #1. Resolution:
     everything is per-server but not zero'ed on reconnect.

(4)  Add object to show current security in use. DONE -
     copsClientServerSecurityMode.

(5)  Do we need to be able to configure the security mode for client to
     attempt to use to talk to COPS server? DONE - added configuration
     object as an index to server configuration table. Added some more
     capabilities too.

(6)  Add TCP port number to all tables. DONE - copsClientServerTcpPort,
     copsClientServerConfigTcpPort.

(7)  Add server retry configuration. DONE -
     copsClientServerConfigRetryCount,
     copsClientServerConfigRetryInterval

(8)  Add COPS protocol version number capabilities object. DONE -
     copsClientCapabilities.







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(9)  Added error counters and capabilities associated with security.

















































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5.  Definitions for COPS Client MIB


COPS-CLIENT-MIB DEFINITIONS ::= BEGIN

-- -------------------------------------------------------------
-- -------------------------------------------------------------

IMPORTS
    MODULE-IDENTITY, OBJECT-TYPE, Counter32, Integer32, Unsigned32
        FROM SNMPv2-SMI
    TimeStamp, TimeInterval, RowStatus, TEXTUAL-CONVENTION
        FROM SNMPv2-TC
    MODULE-COMPLIANCE, OBJECT-GROUP
        FROM SNMPv2-CONF
    InetAddressType, InetAddress
        FROM INET-ADDRESS-MIB;


--    REFERENCE
--        "The COPS (Common Open Policy Service) Protocol RFC 2748

copsClientMIB MODULE-IDENTITY
    LAST-UPDATED "200003100000Z"
    ORGANIZATION "IETF RSVP Admission Policy Working Group"
    CONTACT-INFO
        "       Andrew Smith (WG co-chair)
         Phone: +1 408 579 2821
         Email: andrew@extremenetworks.com

                Mark Stevens (WG co-chair)
         Phone: +1 978 287 9102
         Email: markstevens@lucent.com

         Editor: Andrew Smith
         Phone: +1 408 579 2821
         Email: andrew@extremenetworks.com

         Editor: David Partain
         Phone: +46 13 28 41 44
         Email: David.Partain@ericsson.com

         Editor: John Seligson
         Phone: +1 408 495 2992
         Email: jseligso@nortelnetworks.com"





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    DESCRIPTION
        "The COPS Client MIB module"

    REVISION    "200003100000Z"
    DESCRIPTION "This version published as
                draft-ietf-rap-cops-client-mib-03."

    ::= { xxx 1 }

copsClientMIBObjects OBJECT IDENTIFIER ::= { copsClientMIB 1 }

-- -------------------------------------------------------------
-- Textual Conventions
-- -------------------------------------------------------------

CopsClientState ::= TEXTUAL-CONVENTION
    STATUS      current
    DESCRIPTION
        "A value indicating the state of a COPS client."
    SYNTAX      INTEGER {
            copsClientInvalid(1),      -- default state.
            copsClientTcpconnected(2), -- TCP connection up but COPS
                                       -- not yet open.
            copsClientAuthenticating(3), -- TCP connection up but still
                                         -- authenticating.
            copsClientSecAccepted(4),  -- connection authenticated.
            copsClientAccepted(5),     -- COPS server accepted client.
            copsClientTimingout(6)     -- Keepalive timer has expired,
                                       -- client is in process of tearing
                                       -- down connection.
    }

CopsServerEntryType ::= TEXTUAL-CONVENTION
    STATUS      current
    DESCRIPTION
        "A value indicating how a COPS server entry came into existence."
    SYNTAX      INTEGER {
            copsServerStatic(1),        -- configured by manager
            copsServerRedirect(2)       -- notified by COPS server
    }

CopsErrorCode ::= TEXTUAL-CONVENTION
    STATUS      current
    DESCRIPTION
        "A value describing a COPS protocol error. Codes are identical to





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         those used by the COPS protocol itself."
    SYNTAX      INTEGER {
            errorOther(0),             -- none of the below
            errorBadHandle(1),
            errorInvalidHandleReference(2),
            errorBadMessageFormat(3),
            errorUnableToProcess(4),
            errorMandatoryClientSiMissing(5),
            errorUnsupportedClientType(6),
            errorMandatoryCopsObjectMissing(7),
            errorClientFailure(8),
            errorCommunicationFailure(9),
            errorUnspecified(10),        -- client-type specific subcode
            errorShuttingDown(11),
            errorRedirectToPreferredServer(12),
            errorUnknownCopsObject(13),
            errorAuthenticationFailure(14),
            errorAuthenticationMissing(15)
    }
--  REFERENCE
--      "COPS section 2.2.8"

CopsTcpPort ::= TEXTUAL-CONVENTION
    STATUS      current
    DESCRIPTION
        "A value indicating a TCP protocol port number."
    SYNTAX      INTEGER (0..65535)

CopsAuthType ::= TEXTUAL-CONVENTION
    STATUS      current
    DESCRIPTION
        "A value indicating a type of security authentication mechanism."
    SYNTAX      INTEGER {
        authNone(0),
        authOther(1),
        authIpSecAh(2),
        authIpSecEsp(3),
        authTls(4),
        authCopsIntegrity(5)
    }

-- -------------------------------------------------------------

copsClientCapabilitiesGroup OBJECT IDENTIFIER
                            ::= { copsClientMIBObjects 1 }





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-- -------------------------------------------------------------
--
-- Capabilities of the COPS client to connect to a COPS server:
--
copsClientCapabilities OBJECT-TYPE
    SYNTAX      BITS {
        copsClientVersion1(0),     -- supports version1 of COPS protocol
        copsClientAuthIpSecAh(1) , -- supports IP-SEC Authentication
        copsClientAuthIpSecEsp(2), -- supports IP-SEC Encryption
        copsClientAuthTls(3),      -- supports Transport-Layer Security
        copsClientAuthInteg(4)     -- supports COPS Integrity
    }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A list of the optional capabilities that this COPS client
        supports."
    ::= { copsClientCapabilitiesGroup 1 }

-- -------------------------------------------------------------

copsClientStatusGroup OBJECT IDENTIFIER ::= { copsClientMIBObjects 2 }

-- -------------------------------------------------------------
--
-- Current status of COPS server connections, all read-only.
--

copsClientServerCurrentTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF CopsClientServerCurrentEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "A table of information regarding COPS servers as seen from the
        point of view of a COPS client. This table contains entries
        for both statically-configured and dynamically-learned servers
        (from a PDP Redirect operation). One entry exists in this table
        for each COPS Client-Type served by the COPS server. In addition,
        an entry will exist with copsClientServerClientType 0 (zero)
        representing information about the underlying connection itself:
        this is consistent with the COPS specification which reserves
        this value for this purpose."
    ::= { copsClientStatusGroup 1 }

copsClientServerCurrentEntry OBJECT-TYPE





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    SYNTAX      CopsClientServerCurrentEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "A set of information regarding a single COPS server serving
        a single COPS Client-Type from the point of view of a COPS
        client."
    INDEX { copsClientServerAddressType, copsClientServerAddress,
            copsClientServerClientType }
    ::= { copsClientServerCurrentTable 1 }

CopsClientServerCurrentEntry ::=
    SEQUENCE {
        copsClientServerAddressType         InetAddressType,
        copsClientServerAddress             InetAddress,
        copsClientServerClientType          INTEGER,
        copsClientServerTcpPort             CopsTcpPort,
        copsClientServerType                CopsServerEntryType,
        copsClientServerAuthType            CopsAuthType,
        copsClientServerLastConnAttempt     TimeStamp,
        copsClientState                     CopsClientState,
        copsClientServerKeepaliveTime       TimeInterval,
        copsClientServerAccountingTime      TimeInterval,
        copsClientInPkts                    Counter32,
        copsClientOutPkts                   Counter32,
        copsClientInErrs                    Counter32,
        copsClientLastError                 CopsErrorCode,
        copsClientTcpConnectAttempts        Counter32,
        copsClientTcpConnectFailures        Counter32,
        copsClientOpenAttempts              Counter32,
        copsClientOpenFailures              Counter32,
        copsClientErrUnsupportClienttype    Counter32,
        copsClientErrUnsupportedVersion     Counter32,
        copsClientErrLengthMismatch         Counter32,
        copsClientErrUnknownOpcode          Counter32,
        copsClientErrUnknownCnum            Counter32,
        copsClientErrBadCtype               Counter32,
        copsClientErrBadSends               Counter32,
        copsClientErrWrongObjects           Counter32,
        copsClientErrWrongOpcode            Counter32,
        copsClientKaTimedoutClients         Counter32,
        copsClientErrAuthFailures           Counter32,
        copsClientErrAuthMissing            Counter32
    }






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copsClientServerAddressType OBJECT-TYPE
    SYNTAX      InetAddressType
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The type of address in copsClientServerAddress."
    ::= { copsClientServerCurrentEntry 1 }

copsClientServerAddress OBJECT-TYPE
    SYNTAX      InetAddress
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The IPv4, IPv6 or DNS address of a COPS Server. Note that,
        since this is an index to the table, the DNS name must be
        short enough to fit into the maximum length of indices allowed
        by the management protocol in use."
    REFERENCE
        "COPS section 2.3"
    ::= { copsClientServerCurrentEntry 2 }

copsClientServerClientType OBJECT-TYPE
    SYNTAX      INTEGER (0..65535)
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The COPS protocol Client-Type for which this entry
        applies. Multiple Client-Types can be served by a single
        COPS server. The value 0 (zero) indicates that this
        entry contains information about the underlying connection
        itself."
    REFERENCE
        "COPS section 6, IANA"
    ::= { copsClientServerCurrentEntry 3 }

copsClientServerTcpPort OBJECT-TYPE
    SYNTAX      CopsTcpPort
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The TCP port number on the COPS server to which the
        client should connect."
    ::= { copsClientServerCurrentEntry 4 }

copsClientServerType OBJECT-TYPE





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    SYNTAX      CopsServerEntryType
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Indicator of the source of this COPS server information.
        COPS servers may be configured by network management
        into copsClientServerConfigTable and appear in this entry
        with type copsServerStatic(1). Alternatively, the may be
        notified from another COPS server by means of the COPS
        PDP-Redirect mechanism and appear as copsServerRedirect(2)."
    ::= { copsClientServerCurrentEntry 5 }

copsClientServerAuthType OBJECT-TYPE
    SYNTAX      CopsAuthType
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Indicator of the current security mode in use between
        client and this COPS server."
    ::= { copsClientServerCurrentEntry 6 }

copsClientServerLastConnAttempt OBJECT-TYPE
    SYNTAX      TimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Timestamp of the last time that this client attempted to
        connect to this COPS server."
    ::= { copsClientServerCurrentEntry 7 }

copsClientState  OBJECT-TYPE
    SYNTAX      CopsClientState
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The state of the connection and COPS protocol with respect
        to this COPS server."
    ::= { copsClientServerCurrentEntry 8 }

copsClientServerKeepaliveTime OBJECT-TYPE
    SYNTAX      TimeInterval
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The value of the COPS protocol Keepalive timeout, in





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        centiseconds, currently in use by this client, as
        specified by this COPS server in the Client-Accept operation.
        A value of zero indicates no keepalive activity is expected."
    REFERENCE
        "COPS section 3.7, 4.4"
    ::= { copsClientServerCurrentEntry 9 }

copsClientServerAccountingTime   OBJECT-TYPE
    SYNTAX      TimeInterval
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The value of the COPS protocol Accounting timeout, in
        centiseconds, currently in use by this client, as specified
        by the COPS server in the Client-Accept operation. A value
        of zero indicates no accounting activity is to be performed."
    REFERENCE
        "COPS section 3.7"
    ::= { copsClientServerCurrentEntry 10 }

copsClientInPkts OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client has
        received from this COPS server marked for this Client-Type. This
        value is cumulative since agent restart and is not zeroed on new
        connections."
    ::= { copsClientServerCurrentEntry 11 }

copsClientOutPkts OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client has
        sent to this COPS server marked for this Client-Type. This value
        is cumulative since agent restart and is not zeroed on new
        connections."
    ::= { copsClientServerCurrentEntry 12 }

copsClientInErrs OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only





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    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client has
        received from this COPS server marked for this Client-Type that
        contained errors in syntax. This value is cumulative since agent
        restart and is not zeroed on new connections."
    ::= { copsClientServerCurrentEntry 13 }

copsClientLastError OBJECT-TYPE
    SYNTAX      CopsErrorCode
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The code contained in the last COPS protocol Error Object
        received by this client from this COPS server marked for this
        Client-Type. This value is not zeroed on COPS Client-Open
        operations."
    REFERENCE
        "COPS section 2.2.8"
    ::= { copsClientServerCurrentEntry 14 }

copsClientTcpConnectAttempts OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the number of times that this COPS client has tried
        to open an TCP connection to a COPS server. This value is
        cumulative  since agent restart and is not zeroed on new
        connections. This value is only valid for Client-Type 0."
    ::= { copsClientServerCurrentEntry 15 }

copsClientTcpConnectFailures OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the number of times that this COPS client has failed
        to open an TCP connection to a COPS server. This value is
        cumulative since agent restart and is not zeroed on new
        connections. This value is only valid for Client-Type 0."
    ::= { copsClientServerCurrentEntry 16 }

copsClientOpenAttempts OBJECT-TYPE
    SYNTAX     Counter32





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    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the number of times that this COPS client has tried
        to perform a COPS Client-Open to a COPS server for this
        Client-Type. This value is cumulative since agent restart and is
        not zeroed on new connections."
    ::= { copsClientServerCurrentEntry 17 }

copsClientOpenFailures OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the number of times that this COPS client has failed
        to perform a COPS Client-Open to a COPS server for this
        Client-Type. This value is cumulative since agent restart and is
        not zeroed on new connections."
    ::= { copsClientServerCurrentEntry 18 }

copsClientErrUnsupportClienttype OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client has
        received from COPS servers that referred to Client-Types that are
        unsupported by this client. This value is cumulative
        since agent restart and is not zeroed on new connections. This
        value is only valid for Client-Type 0."
    ::= { copsClientServerCurrentEntry 19 }

copsClientErrUnsupportedVersion OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client
        has received from COPS servers marked for this Client-Type that
        had a COPS protocol Version number that is unsupported by this
        client. This value is cumulative since agent restart and is not
        zeroed on new connections."
    ::= { copsClientServerCurrentEntry 20 }

copsClientErrLengthMismatch OBJECT-TYPE





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    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client has
        received from COPS servers marked for this Client-Type that had a
        COPS protocol Message Length that did not match the actual
        received packet. This value is cumulative since agent restart and
        is not zeroed on new connections."
    ::= { copsClientServerCurrentEntry 21 }

copsClientErrUnknownOpcode OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client has
        received from COPS servers marked for this Client-Type that had a
        COPS protocol Op Code that was unrecognised by this client. This
        value is cumulative since agent restart and is not zeroed on new
        connections."
    ::= { copsClientServerCurrentEntry 22 }

copsClientErrUnknownCnum OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client has
        received from COPS servers marked for this Client-Type that
        contained a COPS protocol object C-Num that was unrecognised by
        this client. This value is cumulative since agent restart and is
        not zeroed on new connections."
    ::= { copsClientServerCurrentEntry 23 }

copsClientErrBadCtype OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client has
        received from COPS servers marked for this Client-Type that
        contained a COPS protocol object C-Type that was not defined for
        the C-Nums known by this client. This value is cumulative since
        agent restart and is not zeroed on new connections."





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    ::= { copsClientServerCurrentEntry 24 }

copsClientErrBadSends OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client
        attempted to send to COPS servers marked for this Client-Type
        that resulted in a transmit error. This value is cumulative
        since agent restart and is not zeroed on new connections."
    ::= { copsClientServerCurrentEntry 25 }

copsClientErrWrongObjects OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client
        has received from COPS servers marked for this Client-Type that
        did not contain a permitted set of COPS protocol objects. This
        value is cumulative since agent restart and is not zeroed on new
        connections."
    ::= { copsClientServerCurrentEntry 26 }

copsClientErrWrongOpcode OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of COPS packets that this client has
        received from COPS servers marked for this Client-Type that had a
        COPS protocol Op Code that should not have been sent to a COPS
        client e.g. Open-Requests. This value is cumulative since agent
        restart and is not zeroed on new connections."
    ::= { copsClientServerCurrentEntry 27 }

copsClientKaTimedoutClients OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of times that this client has
        been shut down for this Client-Type by COPS servers that had
        detected a COPS protocol Keepalive timeout. This value is





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        cumulative since agent restart and is not zeroed on new
        connections."
    ::= { copsClientServerCurrentEntry 28 }

copsClientErrAuthFailures OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of times that this client has
        received a COPS packet marked for this Client-Type which
        could not be authenticated using the authentication mechanism
        used by this client."
    ::= { copsClientServerCurrentEntry 29 }

copsClientErrAuthMissing OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "A count of the total number of times that this client has
        received a COPS packet marked for this Client-Type which did not
        contain authentication information."
    ::= { copsClientServerCurrentEntry 30 }


-- -------------------------------------------------------------

copsClientConfigGroup OBJECT IDENTIFIER ::= { copsClientMIBObjects 3 }

-- -------------------------------------------------------------

copsClientServerConfigTable OBJECT-TYPE
     SYNTAX      SEQUENCE OF CopsClientServerConfigEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Table of possible COPS servers to try to connect to in order
        of copsClientServerConfigPriority. There may be multiple
        entries in this table for the same server and client-type which
        specify different security mechanisms: these mechanisms will
        be attempted by the client in the priority order given. Note
        that a server learned by means of PDPRedirect always takes
        priority over any of these configured entries."
    ::= { copsClientConfigGroup 1 }





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copsClientServerConfigEntry OBJECT-TYPE
    SYNTAX      CopsClientServerConfigEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "A set of configuration information regarding a single
        COPS server from the point of view of a COPS client."
    INDEX { copsClientServerConfigAddrType,
            copsClientServerConfigAddress,
            copsClientServerConfigClientType,
            copsClientServerConfigAuthType }
    ::= { copsClientServerConfigTable 1 }

CopsClientServerConfigEntry ::=
    SEQUENCE {
        copsClientServerConfigAddrType      InetAddressType,
        copsClientServerConfigAddress       InetAddress,
        copsClientServerConfigClientType    INTEGER,
        copsClientServerConfigAuthType      CopsAuthType,
        copsClientServerConfigTcpPort       CopsTcpPort,
        copsClientServerConfigPriority      Integer32,
        copsClientServerConfigRowStatus     RowStatus
    }

copsClientServerConfigAddrType OBJECT-TYPE
    SYNTAX      InetAddressType
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The type of address in copsClientServerConfigAddress."
    ::= { copsClientServerConfigEntry 1 }

copsClientServerConfigAddress OBJECT-TYPE
    SYNTAX      InetAddress
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The IPv4, IPv6 or DNS address of a COPS Server. Note that,
        since this is an index to the table, the DNS name must be
        short enough to fit into the maximum length of indices allowed
        by the management protocol in use."
    REFERENCE
        "COPS section 2.3"
    ::= { copsClientServerConfigEntry 2 }






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copsClientServerConfigClientType OBJECT-TYPE
    SYNTAX      INTEGER (0..65535)
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The COPS protocol Client-Type for which this entry
        applies and for which this COPS server is capable
        of serving. Multiple Client-Types can be served by a
        single COPS server."
    REFERENCE
        "COPS section 6, IANA"
    ::= { copsClientServerConfigEntry 3 }

copsClientServerConfigAuthType OBJECT-TYPE
    SYNTAX      CopsAuthType
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The type of authentication mechanism for this COPS client
        to request when negotiating security at the start of a
        connection to a COPS server."
    REFERENCE
        "COPS section 4."
    ::= { copsClientServerConfigEntry 4 }


copsClientServerConfigTcpPort OBJECT-TYPE
    SYNTAX      CopsTcpPort
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The TCP port number on the COPS server to which the
        client should connect."
    ::= { copsClientServerConfigEntry 5 }

copsClientServerConfigPriority OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The priority of this entry relative to other entries.
        COPS client will attempt to contact COPS servers for the
        appropriate Client-Type. Higher numbers are tried first. The
        order to be used amongst server entries with the same priority
        is undefined. COPS servers that are notified to the client using





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        the COPS protocol PDP-Redirect mechanism are always used in
        preference to any entries in this table."
    ::= { copsClientServerConfigEntry 6 }

copsClientServerConfigRowStatus OBJECT-TYPE
    SYNTAX      RowStatus
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "State of this entry in the table."
    ::= { copsClientServerConfigEntry 7 }

copsClientServerConfigRetryAlgrm OBJECT-TYPE
    SYNTAX      INTEGER {
                    other(1),
                    sequential(2),
                    roundRobin(3)
                }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "The algorithm by which the client should retry when it
         fails to connect to a COPS server."
    DEFVAL { sequential }
    ::= { copsClientConfigGroup 2 }

copsClientServerConfigRetryCount OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "A retry count for use by the retry algorithm.  Each retry
         algorithm needs to specify how it uses this value.

         For the 'sequential(2)' algorithm, this value is the
         number of times the client should retry to connect
         to one COPS server before moving on to another.

         For the 'roundRobin(3)' algorithm, this value is not used."
    DEFVAL { 1 }
    ::= { copsClientConfigGroup 3 }

copsClientServerConfigRetryIntvl OBJECT-TYPE
    SYNTAX      TimeInterval
    UNITS       "centi-seconds"





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    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "A retry interval for use by the retry algorithm.  Each retry
         algorithm needs to specify how it uses this value.

         For the 'sequential(2)' algorithm, this value is the time to
         wait between retries of a connection to the same COPS server.

         For the 'roundRobin(3)' algorithm, the client always attempts
         to connect to each Server in turn, until one succeeds or they
         all fail; if they all fail, then the client waits for the value
         of this interval before restarting the algorithm."
    DEFVAL { 1000 }
    ::= { copsClientConfigGroup 4 }

-- -------------------------------------------------------------
-- Conformance Information
-- -------------------------------------------------------------

copsClientConformance OBJECT IDENTIFIER ::= { copsClientMIB 2 }

copsClientGroups OBJECT IDENTIFIER ::= { copsClientConformance 1 }
copsClientCompliances OBJECT IDENTIFIER ::= { copsClientConformance 2 }

-- -------------------------------------------------------------
-- units of conformance
-- -------------------------------------------------------------

copsDeviceStatusGroup OBJECT-GROUP
    OBJECTS {
        copsClientCapabilities,
        copsClientServerTcpPort, copsClientServerType,
        copsClientServerAuthType, copsClientServerLastConnAttempt,
        copsClientState, copsClientServerKeepaliveTime,
        copsClientServerAccountingTime, copsClientInPkts,
        copsClientOutPkts, copsClientInErrs, copsClientLastError,
        copsClientTcpConnectAttempts, copsClientTcpConnectFailures,
        copsClientOpenAttempts, copsClientOpenFailures,
        copsClientErrUnsupportClienttype,
        copsClientErrUnsupportedVersion, copsClientErrLengthMismatch,
        copsClientErrUnknownOpcode, copsClientErrUnknownCnum,
        copsClientErrBadCtype, copsClientErrBadSends,
        copsClientErrWrongObjects, copsClientErrWrongOpcode,
        copsClientKaTimedoutClients





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    }
    STATUS      current
    DESCRIPTION
        "A collection of objects for monitoring the status of
        connections to COPS servers and statistics for a COPS client."
    ::= { copsClientGroups 1 }

copsDeviceConfigGroup OBJECT-GROUP
    OBJECTS {
        copsClientServerConfigTcpPort, copsClientServerConfigPriority,
        copsClientServerConfigRowStatus,
        copsClientServerConfigRetryAlgrm,
        copsClientServerConfigRetryCount,
        copsClientServerConfigRetryIntvl
    }
    STATUS      current
    DESCRIPTION
        "A collection of objects for configuring COPS server
        information."
    ::= { copsClientGroups 2 }

-- -------------------------------------------------------------
-- compliance statements
-- -------------------------------------------------------------

copsClientCompliance MODULE-COMPLIANCE
    STATUS  current
    DESCRIPTION
        "The compliance statement for device support of
        management of the COPS client."

    MODULE
        MANDATORY-GROUPS {
            copsDeviceStatusGroup, copsDeviceConfigGroup
        }

        OBJECT      copsClientServerConfigTcpPort
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is required only if the device supports the
            configuration of COPS server information."

        OBJECT      copsClientServerConfigPriority
        MIN-ACCESS  read-only
        DESCRIPTION





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            "Write access is required only if the device supports the
            configuration of COPS server information."

        OBJECT      copsClientServerConfigRowStatus
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is required only if the device supports the
            configuration of COPS server information."

        OBJECT      copsClientServerConfigRetryAlgrm
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is required only if the device supports the
            configuration of COPS server information."

        OBJECT      copsClientServerConfigRetryCount
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is required only if the device supports the
            configuration of COPS server information."

        OBJECT      copsClientServerConfigRetryIntvl
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is required only if the device supports the
            configuration of COPS server information."

       ::= { copsClientCompliances 1 }

END


6.  Acknowledgments

This document describes instrumentation for the client side of the COPS
protocol which was defined by the RSVP Admission Policy (rap) Working
Group, now known as the Resource Allocation Protocol (rap) Working
Group.


7.  Security Considerations

There are a number of management objects defined in this MIB that have a
MAX-ACCESS clause of read-create.  Such objects may be considered
sensitive or vulnerable in some network environments.  The support for





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SET operations in a non-secure environment without proper protection can
have a negative effect on network operations.

SNMPv1 by itself is not a secure environment.  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.

It is recommended that the implementers consider the security features
as provided by the SNMPv3 framework.  Specifically, the use of the User-
based Security Model [USM] and the View-based Access Control Model
[VACM] is recommended.

It is then a customer/user responsibility to ensure that the SNMP entity
giving access to an instance of this MIB, 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.  References

[ARCH]
     Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for
     Describing SNMP Management Frameworks", RFC 2571, April 1999

[V1PROTO]
     Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple Network
     Management Protocol", STD 15, RFC 1157, May 1990.

[V1SMI]
     Rose, M., and K. McCloghrie, "Structure and Identification of
     Management Information for TCP/IP-based Internets", STD 16, RFC
     1155, May 1990

[V1CONCISE]
     Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16, RFC
     1212, March 1991

[V1TRAPS]
     M. Rose, "A Convention for Defining Traps for use with the SNMP",
     RFC 1215, March 1991

[V2SMI]
     McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M.
     and S. Waldbusser, "Structure of Management Information Version 2





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     (SMIv2)", STD 58, RFC 2578, April 1999.

[V2TC]
     McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M.
     and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC
     2579, April 1999.

[V2CONFORM]
     McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M.
     and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC
     2580, April 1999.

[V2COMMUNITY]
     Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Introduction
     to Community-based SNMPv2", RFC 1901, January 1996.

[V2TRANS]
     Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport
     Mappings for Version 2 of the Simple Network Management Protocol
     (SNMPv2)", RFC 1906, January 1996.

[V2PROTO]
     Case, J., McCloghrie, K., Rose, M. and Waldbusser, S., "Protocol
     Operations for Version 2 of the Simple Network Management Protocol
     (SNMPv2)", RFC 1905, January 1996.

[V3INTRO]
     Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction to
     Version 3 of the Internet-standard Network Management Framework",
     RFC 2570, April 1999.

[V3MPC]
     Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message
     Processing and Dispatching for the Simple Network Management
     Protocol (SNMP)", RFC 2572, April 1999.

[V3USM]
     Blumenthal, U. and B. Wijnen, "The User-Based Security Model (USM)
     for Version 3 of the Simple Network Management Protocol (SNMPv3)",
     RFC 2574, April 1999.

[V3APPS]
     Levi, D., Meyer, P. and B. Stewart, "SNMP Applications", RFC 2573,
     April 1999.






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[V3VACM]
     Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access
     Control Model for the Simple Network Management Protocol (SNMP)",
     RFC 2575, April 1999.

[ASN1]
     Information processing systems - Open Systems Interconnection -
     Specification of Abstract Syntax Notation One (ASN.1),
     International Organization for Standardization, International
     Standard 8824, December 1987.

[ASN1BER]
     Information processing systems - Open Systems Interconnection -
     Specification of Basic Encoding Rules for Abstract Notation One
     (ASN.1), International Organization for Standardization,
     International Standard 8825, December 1987.

[MIB2]
     McCloghrie K., and M. Rose, Editors, "Management Information Base
     for Network Management of TCP/IP-based internets", STD 17, RFC
     1213, March 1991.

[FRAMEWORK]
     Yavatkar, R., Pendarakis, D. and Guerin, R., "A Framework for
     Policy-based Admission Control", RFC 2753, January 2000.

[COPS]
     Boyle, J., Cohen, R., Durham, D., Herzog, S., Rajan, R. and Sastry,
     A., "The COPS (Common Open Policy Service) Protocol", RFC 2748,
     January 2000.

[RSVP]
     Braden, R. ed. et al., "Resource ReSerVation Protocol (RSVP)
     Version 1 - Functional Specification", RFC 2205, September 1997.

[COPSRSVP]
     Boyle, J., Cohen, R., Durham, D., Herzog, S., Rajan, R. and Sastry,
     A., "COPS Usage for RSVP", RFC 2749, January 2000.

[SRVLOC]
     Guttman, E., Perkins, C., Veizades, J., Day, M., "Service Location
     Protocol, Version 2", RFC 2608, June 1999.

[ADDRESSMIB]
     Daniele, M., Haberman, B., Routhier, S. and J. Schoenwaelder,





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     "Textual Conventions for Internet Network Addresses", Internet
     Draft, February 2000.  http://www.ietf.org/internet-drafts/draft-
     ops-endpoint-mib-07.txt

[PROCESS]
     Bradner, S., "The Internet Standards Process -- Revision 3", BCP 9,
     RFC 2026, October 1996.


9.  Authors' Addresses

     Andrew Smith
     Extreme Networks
     3585 Monroe St.
     Santa Clara CA 95051
     USA
     Phone: +1 408 579 2821
     EMail: andrew@extremenetworks.com

     David Partain
     Ericsson Radio Systems
     Research and Innovation
     P.O. Box 1248
     SE-581 12 Linkoping
     Sweden
     Phone: +46 13 28 41 44
     EMail: David.Partain@ericsson.com

     John Seligson
     Nortel Networks, Inc.
     4401 Great America Parkway
     Santa Clara, CA 95054
     USA
     Phone: +1 408 495 2992
     EMail: jseligso@nortelnetworks.com


10.  Notices

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





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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 propritary 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.





































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11.  Full Copyright


   Copyright (C) The Internet Society (2000).  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 implmentation 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.






















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