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Versions: 00 01 02 03 04 05 06 07 08 09 10 11
12 13 14 RFC 4546
Internet Draft Aviv Goren/David Raftus
draft-ietf-ipcdn-docs-rfmibv2-01.txt Terayon/Imedia
Expires: May 2002 November 2001
Obsoletes: RFC2670
Radio Frequency (RF) Interface Management Information Base
for DOCSIS 2.0 compliant RF interfaces
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
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.
Copyright Notice
Copyright (C) The Internet Society (2001). All Rights Reserved.
Abstract
This memo is a draft revision of the standards track RFC-2670.
Please see "Section 9 Changes from RFC2670" for a description of modifications.
This document or its successor will obsolete RFC-2670 when accepted.
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it defines a basic set of managed objects for SNMP-
based management of DOCSIS compliant Radio Frequency (RF) interfaces.
This memo specifies a MIB module in a manner that is compliant to the
SNMP SMIv2 [5][6][7]. The set of objects are consistent with the
SNMP framework and existing SNMP standards.
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Table of Contents
1 The SNMP Management Framework ................................... 3
2 Glossary ........................................................ 4
2.1 CATV .......................................................... 4
2.2 Channel ....................................................... 4
2.3 CM ............................................................ 4
2.4 CMTS .......................................................... 4
2.5 Codeword ...................................................... 4
2.6 Data Packet ................................................... 4
2.7 dBmV .......................................................... 4
2.8 DOCSIS ........................................................ 5
2.9 Downstream .................................................... 5
2.10 Head-end ..................................................... 5
2.11 MAC Packet ................................................... 5
2.12 MCNS ......................................................... 5
2.13 Mini-slot .................................................... 5
2.14 QPSK ......................................................... 5
2.15 QAM .......................................................... 5
2.16 RF ........................................................... 5
2.17 Symbol-times ................................................. 5
2.18 Upstream ..................................................... 6
3 Overview ........................................................ 6
3.1 Structure of the MIB .......................................... 6
3.1.1 docsIfBaseObjects ........................................... 6
3.1.2 docsIfCmObjects ............................................. 7
3.1.3 docsIfCmtsObjects ........................................... 7
3.2 Relationship to the Interfaces MIB ............................ 7
3.2.1 Layering Model .............................................. 7
3.2.2 Virtual Circuits ............................................ 8
3.2.3 ifTestTable ................................................. 9
3.2.4 ifRcvAddressTable ........................................... 9
3.2.5 ifEntry ..................................................... 9
3.2.5.1 ifEntry for Downstream interfaces ......................... 9
3.2.5.1.1 ifEntry for Downstream interfaces in Cable Modem
Termination Systems .......................................... 9
3.2.5.1.2 ifEntry for Downstream interfaces in Cable Modems ...... 11
3.2.5.2 ifEntry for Upstream interfaces .......................... 12
3.2.5.2.1 ifEntry for Upstream interfaces in Cable Modem
Termination Systems ......................................... 12
3.2.5.2.2 ifEntry for Upstream interfaces in Cable Modems ........ 14
3.2.5.3 ifEntry for the MAC Layer ................................ 15
4 Definitions .................................................... 18
5 Acknowledgments ................................................ 73
6 Revision Descriptions ...........................................73
7 References ..................................................... 73
8 Security Considerations ........................................ 75
9 Changes from RFC2670 ........................................... 75
10 Intellectual Property ..........................................76
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11 Author's Address .............................................. 76
12 Full Copyright Statement ...................................... 76
1. The SNMP Management Framework
The SNMP Management Framework presently consists of five major
components:
o An overall architecture, described in RFC 2571 [1].
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 STD
16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4]. The
second version, called SMIv2, is described in STD 58, RFC 2578
[5], STD 58, RFC 2579 [6] and STD 58, RFC 2580 [7].
o Message protocols for transferring management information. The
first version of the SNMP message protocol is called SNMPv1 and
described in RFC 1157 [8]. A second version of the SNMP message
protocol, which is not an Internet standards track protocol, is
called SNMPv2c and described in RFC 1901 [9] and RFC 1906 [10].
The third version of the message protocol is called SNMPv3 and
described in RFC 1906 [10], RFC 2572 [11] and RFC 2574 [12].
o Protocol operations for accessing management information. The
first set of protocol operations and associated PDU formats is
described in STD 15, RFC 1157 [8]. A second set of protocol
operations and associated PDU formats is described in RFC 1905
[13].
o A set of fundamental applications described in RFC 2573 [14] and
the view-based access control mechanism described in RFC 2575
[15].
A more detailed introduction to the current SNMP Management Framework
can be found in RFC 2570 [21].
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
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.
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2. Glossary
The terms in this document are derived either from normal cable
system usage, or from the documents associated with the Data Over
Cable Service Interface Specification process.
2.1. CATV
Originally "Community Antenna Television", now used to refer to any
cable or hybrid fiber and cable system used to deliver video signals
to a community.
2.2. Channel
A specific frequency allocation with an RF medium, specified by
channel width in Hertz (cycles per second) and by center frequency.
Within the US Cable Systems, upstream channels are generally
allocated from the 5-42MHz range while down stream channels are
generally allocated from the 50-750MHz range depending on the
capabilities of the given system. The typical broadcast channel
width in the US is 6MHz. Upstream channel widths for DOCSIS vary.
For European cable systems, upstream channels vary by country. The
upper edge of upstream channel allocations vary between 25 MHz to 65
MHz, and the lower edge of downstream channel allocations vary
between 47 MHz and 87.5 MHz. The typical broadcast channel width in
Europe is 8MHz. The actual parameters are of concern to systems
deploying EuroDOCSIS technology.
2.3. CM Cable Modem.
A CM acts as a "slave" station in a DOCSIS compliant cable data
system.
2.4. CMTS Cable Modem Termination System.
A generic term covering a cable bridge or cable router in a head-end.
A CMTS acts as the master station in a DOCSIS compliant cable data
system. It is the only station that transmits downstream, and it
controls the scheduling of upstream transmissions by its associated
CMs.
2.5. Codeword
See [25]. A characteristic of the Forward Error Correction scheme used
above the RF media layer.
2.6. Data Packet
The payload portion of the MAC Packet.
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2.7. dBmV
Decibel relative to one milli-volt. A measure of RF power.
2.8. DOCSIS
"Data Over Cable Service Interface Specification". A term referring to the
ITU-T J.112 Annex B standard for cable modem systems [20].
2.9. Downstream
The direction from the head-end towards the subscriber.
2.10. Head-end
The origination point in most cable systems of the subscriber video
signals.
2.11. MAC Packet
A DOCSIS PDU.
2.12. MCNS
"Multimedia Cable Network System". Generally replaced in usage by
DOCSIS.
2.13. Mini-slot
See [25]. In general, an interval of time which is allocated by the
CMTS to a given CM for that CM to transmit in an upstream direction.
2.14. QPSK Quadrature Phase Shift Keying.
A particular modulation scheme on an RF medium. See [19].
2.15. QAM Quadrature Amplitude Modulation.
A particular modulation scheme on RF medium. Usually expressed
with a number indicating the size of the modulation constellation
(e.g. 16 QAM). See [19], or any other book on digital communications
over RF for a complete explanation of this.
2.16. RF
Radio Frequency.
2.17. Symbol-times
See [25]. A characteristic of the RF modulation scheme.
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2.18. Upstream
The direction from the subscriber towards the head-end.
3. Overview
This MIB provides a set of objects required for the management of
MCNS/DOCSIS compliant Cable Modem (CM) and Cable Modem Termination
System (CMTS) RF interfaces. The specification is derived in part
from the parameters and protocols described in DOCSIS Radio Frequency
Interface Specification [25].
3.1. Structure of the MIB
This MIB is structured as three groups:
o Management information pertinent to both Cable Modems (CM) and
Cable Modem Termination Systems (CMTS) (docsIfBaseObjects).
o Management information pertinent to Cable Modems only
(docsIfCmObjects).
o Management information pertinent to Cable Modem Termination
Systems only (docsIfCmtsObjects).
Tables within each of these groups group objects functionally - e.g.
Quality of Service, Channel characteristics, MAC layer management,
etc. Rows created automatically (e.g. by the device according to the
hardware configuration) may and generally will have a mixture of
configuration and status objects within them. Rows that are meant to
be created by the management station are generally restricted to
configuration (read-create) objects.
3.1.1. docsIfBaseObjects
docsIfDownstreamChannelTable - This table describes the active
downstream channels for a CMTS and the received downstream channel
for a CM.
docsIfUpstreamChannelTable - This table describes the active upstream
channels for a CMTS and the current upstream transmission channel
for a CM.
docsIfQosProfileTable - This table describes the valid Quality of
Service profiles for the cable data system.
docsIfSignalQualityTable - This table is used to monitor RF signal
quality characteristics of received signals.
docsIfDocsisBaseCapability - This object is used to indicate the highest level
of DOCSIS version a cable device can support.
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3.1.2. docsIfCmObjects
docsIfCmMacTable - This table is used to monitor the DOCSIS MAC
interface and can be considered an extension to the ifEntry.
docsIfCmServiceTable - This table describes the upstream service
queues available at this CM. There is a comparable table at the
CMTS, docsIfCmtsServiceEntry, which describes the service queues from
the point of view of the CMTS.
3.1.3. docsIfCmtsObjects
docsIfCmtsStatusTable - This table provides a set of aggregated
counters which roll-up values and events that occur on the underlying
sub-interfaces.
docsIfCmtsCmStatusTable - This table is used to hold information
about known (i.e. ranging, registered, and/or previously online)
cable modems on the system serviced by this CMTS.
docsIfCmtsServiceEntry - This table provides access to the
information related to upstream service queues.
docsIfCmtsModulationTable - This table allows control over the
modulation profiles for RF channels associated with this CMTS.
docsIfCmtsMacToCmTable - This table allows fast access into the
docsIfCmtsCmTable via a MAC address (of the CM) interface.
3.2. Relationship to the Interfaces MIB
This section clarifies the relationship of this MIB to the Interfaces
MIB [17]. Several areas of correlation are addressed in the
following subsections. The implementer is referred to the Interfaces
MIB document in order to understand the general intent of these
areas.
3.2.1. Layering Model
An instance of ifEntry exists for each RF Downstream interface, for
each RF Upstream interface, for each Upstream logical Channel and for
each RF MAC layer.
The ifStackTable [17] MUST be implemented to identify relationships among
sub-interfaces.
The following example illustrates a CMTS MAC interface with one downstream
and two upstream interfaces.
| <== to network layer
+------------------ --+-------------------------------+
| RF MAC |
+--+------------------+------------------------+------+
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| | |
+-------+-----+ +------+------+ +------+------+
| Downstream1 | | Upstream1 | | Upstream2 |
| | | | | |
+-------------+ ++-----------++ ++-----------++
| | | |
+----+----+ +----+----+ +----+----+ +----+----+
| Ch-1 | | Ch-2 | | Ch-1 | | Ch-2 |
|(A/TDMA) | |(S-CDMA) | |(A/TDMA) | |(S-CDMA) |
+---------+ +---------+ +---------+ +---------+
As can be seen from this example, the RF MAC interface is layered on
top of the downstream and upstream interfaces, and the RF Upstream interface
is layered on top of an Upstream Logical Channels.
In this example, the assignment of index values could be as follows:
ifIndex ifType Description
2 docsCableMaclayer(127) CATV MAC Layer
3 docsCableDownstream(128) CATV Downstream interface
4 docsCableUpstream(129) CATV Upstream interface
5 docsCableUpstream(129) CATV Upstream interface
6 docsCableUpstreamChannel(205) CATV Upstream Channel
7 docsCableUpstreamChannel(205) CATV Upstream Channel
8 docsCableUpstreamChannel(205) CATV Upstream Channel
9 docsCableUpstreamChannel(205) CATV Upstream Channel
The corresponding ifStack entries would then be:
| IfStackHigherLayer | ifStackLowerLayer |
| 0 | 2 |
| 2 | 3 |
| 2 | 4 |
| 2 | 5 |
| 4 | 6 |
| 4 | 7 |
| 5 | 8 |
| 5 | 9 |
| 3 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
The same interface model can also be used in Telephony or Telco
Return systems. A pure Telco Return system (Cable Modem as well as
Cable Modem Termination System) would not have upstream, but only
downstream cable channels. Systems supporting both Telco Return and
cable upstream channels can use the above model without modification.
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Telco Return Upstream channel(s) are handled by the appropriate MIBs,
such as PPP or Modem MIBs.
3.2.2. Virtual Circuits
This medium does not support virtual circuits and this area is not
applicable to this MIB.
3.2.3. ifTestTable
The ifTestTable is optional for Docsis CM/CMTS implementations, but is
not specifically influenced by the RF mib.
3.2.4. ifRcvAddressTable
The ifRcvAddressTable is optional for Docsis CM/CMTS implementations, but is
not specifically influenced by the RF mib.
3.2.5. ifEntry
This section documents only the differences from the requirements
specified in the Interfaces MIB. See that MIB for columns omitted
from the descriptions below.
3.2.5.1. ifEntry for Downstream interfaces
The ifEntry for Downstream interfaces supports the
ifGeneralInformationGroup and the ifPacketGroup of the Interfaces
MIB. This is an output only interface at the CMTS and all input
status counters - ifIn* - will return zero. This is an input only
interface at the CM and all output status counters - ifOut* - will
return zero.
3.2.5.1.1. ifEntry for Downstream interfaces in Cable Modem Termination
Systems
ifTable Comments
============== ===========================================
ifIndex Each RF Cable Downstream interface is represented
by an ifEntry.
ifType The IANA value of docsCableDownstream(128).
ifSpeed Return the speed of this downstream channel.
The returned value is the raw bandwidth in bits/s
of this interface. This is the symbol rate
multiplied with the number of bits per symbol.
ifHighSpeed Return the speed of this downstream channel.
The returned value is the raw bandwidth in megabits/s
of this interface. This is the symbol rate
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multiplied with the number of bits per symbol.
ifPhysAddress Return an empty string.
ifAdminStatus The administrative status of this interface.
ifOperStatus The current operational status of this interface.
ifMtu The size of the largest frame which can be
sent on this interface, specified in octets.
The value includes the length of the MAC header.
ifInOctets Return zero.
ifHCInOctets
ifInUcastPkts Return zero.
ifHCInUcastPkts
ifInMulticastPkts Return zero.
ifHCInMulticastPkts
ifInBroadcastPkts Return zero.
ifHCInBroadcastPkts
ifInDiscards Return zero.
ifInErrors Return zero.
ifInUnknownProtos Return zero.
ifOutOctets The total number of octets transmitted on this
ifHCOutOctets interface. This includes MAC packets as well as
data packets, and includes the length of the MAC
header.
ifOutUcastPkts The number of Unicast packets transmitted on this
ifHCOutUcastPkts interface. This includes MAC packets as well as
data packets.
ifOutMulticastPkts
ifHCOutMulticastPkts
Return the number of Multicast packets transmitted
on this interface.
This includes MAC packets as well as data packets.
ifOutBroadcastPkts
ifHCOutBroadcastPkts
Return the number of broadcast packets transmitted
on this interface.
This includes MAC packets as well as data packets.
ifOutDiscards The total number of outbound packets which
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were discarded. Possible reasons are:
buffer shortage.
ifOutErrors The number of packets which could not be
transmitted due to errors.
ifPromiscuousMode Return false.
3.2.5.1.2. ifEntry for Downstream interfaces in Cable Modems
ifTable Comments
============== ===========================================
ifIndex Each RF Cable Downstream interface is represented
by an ifEntry.
ifType The IANA value of docsCableDownstream(128).
ifSpeed Return the speed of this downstream channel.
The returned value the raw bandwidth in bits/s
of this interface. This is the symbol rate
multiplied with the number of bits per symbol.
ifHighSpeed Return the speed of this downstream channel.
The returned value the raw bandwidth in megabits/s
of this interface. This is the symbol rate
multiplied with the number of bits per symbol.
ifPhysAddress Return an empty string.
ifAdminStatus The administrative status of this interface.
ifOperStatus The current operational status of this interface.
ifMtu The size of the largest frame which can be
received from this interface, specified in octets.
The value includes the length of the MAC header.
ifInOctets The total number of octets received on this
ifHCInOctets interface. This includes data packets as well as
MAC layer packets, and includes the length of the
MAC header.
ifInUcastPkts The number of Unicast packets received on this
ifHCInUcastPkts interface. This includes data packets as well as
MAC layer packets.
ifInMulticastPkts
ifHCInMulticastPkts
Return the number of Multicast packets received
on this interface. This includes data packets as
well as MAC layer packets.
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ifInBroadcastPkts
ifHCInBroadcastPkts
Return the number of Broadcast packets received
on this interface. This includes data packets
as well as MAC layer packets.
ifInDiscards The total number of received packets that have
been discarded.
The possible reasons are: buffer shortage.
ifInErrors The number of inbound packets that contained
errors preventing them from being deliverable
to higher layers.
Possible reasons are: MAC FCS error.
ifInUnknownProtos The number of frames with an unknown packet type.
These are MAC frames with an unknown packet type.
ifOutOctets Return zero.
ifHCOutOctets
ifOutUcastPkts Return zero.
ifHCOutUcastPkts
ifOutMulticastPkts
ifHCOutMulticastPkts
Return zero.
ifOutBroadcastPkts
ifHCOutBroadcastPkts
Return zero.
ifOutDiscards Return zero.
ifOutErrors Return zero.
ifPromiscuousMode Refer to the Interfaces MIB.
3.2.5.2. ifEntry for Upstream interfaces
Each supported interface of the type docsCableUpstream(129) must have a
corresponding ifEntry.
The ifEntry for Upstream interfaces supports the
ifGeneralInformationGroup and the ifPacketGroup of the Interfaces
MIB. This is an input only interface at the CMTS and all output
status counters - ifOut* - will return zero. This is an output only
interface at the CM and all input status counters - ifIn* - will
return zero.
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3.2.5.2.1. ifEntry for Upstream interfaces in Cable Modem Termination
Systems
ifTable Comments
============== ===========================================
ifIndex Each RF Cable Upstream interface is represented
by an ifEntry.
ifType The IANA value of docsCableUpstream (129).
ifSpeed Return the maximum channel throughput (not payload
throughput) supported by the interface.
The maximum throughput is calculated for the case where
upstream channels are configured to maximize interface
throughput.
ifHighSpeed Return the maximum channel throughput (not payload
throughput) supported by the interface.
The maximum throughput is calculated for the case where
upstream channels are configured to maximize interface
throughput. Units for this object are (1/1 000 000) *
IfSpeed.
ifPhysAddress Return an empty string.
ifAdminStatus The administrative status of this interface.
This reflect the total status of all the channels
under this interface. So if at least one channel has a
physical connection this interface has connection.
Any SNMP SET on this interface will cause a SET to all the
channels under this interface.
ifOperStatus The current operational status of this interface.
This reflects the total status of all the channels
under this interface. So if at least one channel has a
physical connection this interface has connection.
ifMtu The size of the largest frame which can be
transmitted on this interface, specified in octets.
The value includes the length of the MAC header.
This is the maximum of all the ifMtu of all the channels
under this interface.
ifInOctets The total (sum) number of octets received on all
ifHCInOctets the Upstream channels under this
interface. This includes data packets as well as
MAC layer packets, and includes the length of the
MAC header.
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ifInUcastPkts The total number of Unicast packets received on all the
ifHCInUcastPkts upstream channels under this
interface. This includes data packets as well as
MAC layer packets.
ifInMulticastPkts
ifHCInMulticastPkts
Return the total number of Multicast packets received
on all the Upstream channels under this interface.
This includes data packets as
well as MAC layer packets.
ifInBroadcastPkts
ifHCInBroadcastPkts
Return the total number of Broadcast packets received
on all the Upstream channels under this interface.
This includes data packets
as well as MAC layer packets.
ifInDiscards The total number of received packets, which have
been discarded on all the Upstream channels under this
interface.
The possible reasons are: buffer shortage.
ifInErrors The total number of inbound packets that contained
errors preventing them from being deliverable
to higher layers.
Possible reasons are: MAC FCS error.
ifInUnknownProtos The total number of frames with an unknown packet type.
These are MAC frames with an unknown packet type.
ifOutOctets Return zero.
ifHCOutOctets
ifOutUcastPkts Return zero.
ifHCOutOctets
ifOutMulticastPkts
ifHCOutMulticastPkts
Return zero.
ifOutBroadcastPkts
ifHCOutBroadcastPkts
Return zero.
ifOutDiscards Return zero.
ifOutErrors Return zero.
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3.2.5.2.2. ifEntry for Upstream interfaces in Cable Modems
ifTable Comments
============== ===========================================
ifIndex Each RF Cable Upstream interface is represented
by an ifEntry.
ifType The IANA value of docsCableUpstream (129).
ifSpeed Return the speed of this upstream interface.
The returned value is the raw bandwidth
in bits/s of this interface.
ifHighSpeed Return the speed of this upstream interface.
The returned value is the raw bandwidth
in megabits/s of this interface.
ifPhysAddress Return an empty string.
ifAdminStatus The administrative status of this interface.
ifOperStatus The current operational status of this interface.
ifMtu The size of the largest frame which can be
transmitted on this interface, specified in octets.
The value includes the length of the MAC header.
ifInOctets Return zero.
ifHCInOctets
ifInUcastPkts Return zero.
ifHCInUcastPkts
ifInMulticastPkts Return zero.
ifHCInMulticastPkts
ifInBroadcastPkts Return zero.
ifHCInBroadcastPkts
ifInDiscards Return zero.
ifInErrors Return zero.
ifInUnknownProtos Return zero.
ifOutOctets The total number of octets transmitted on this
ifHCOutOctets interface. This includes MAC packets as well as
data packets, and includes the length of the MAC
header.
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ifOutUcastPkts The number of Unicast packets transmitted on this
ifHCOutUcastPkts interface. This includes MAC packets as well as
data packets.
ifOutMulticastPkts
ifHCOutMulticastPkts
Return the number of Multicast packets transmitted
on this interface.
This includes MAC packets as well as data packets.
ifOutBroadcastPkts
ifHCOutBroadcastPkts
Return the number of broadcast packets transmitted
on this interface.
This includes MAC packets as well as data packets.
ifOutDiscards The total number of outbound packets which
were discarded. Possible reasons are:
buffer shortage.
ifOutErrors The number of packets which could not be
transmitted due to errors.
ifPromiscuousMode Return false.
3.2.5.3. ifEntry for Upstream channels
Each supported channel of the type docsCableUpstreamChannel(205) must have a
corresponding ifEntry.
The ifEntry for Upstream channels supports the
ifGeneralInformationGroup and the ifPacketGroup of the Interfaces
MIB. This is an input only interface at the CMTS and all output
status counters - ifOut* - will return zero. At the time of this mib creation,
DOCSIS CMs are not required to support logical upstream channels.
3.2.5.3.1. ifEntry for Upstream Channels in Cable Modem Termination
Systems
ifTable Comments
============== ===========================================
ifIndex Each RF Cable Upstream channel is represented
by an ifEntry.
ifType The IANA value of docsCableUpstreamChannel (205).
ifSpeed Return the speed of this upstream channel.
The returned value is the raw bandwidth
in bits/s of this channel.
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ifHighSpeed Return the speed of this upstream channel.
The returned value is the raw bandwidth
in megabits/s of this channel.
ifPhysAddress Return an empty string.
ifAdminStatus The administrative status of this interface.
ifOperStatus The current operational status of this interface.
ifMtu The size of the largest frame which can be
received on this interface, specified in octets.
The value includes the length of the MAC header.
ifInOctets The total number of octets received on this
interface. This includes data packets as well as
MAC layer packets, and includes the length of the
MAC header.
ifInUcastPkts The number of Unicast packets received on this
ifHCInUcastPkts interface. This includes data packets as well as
MAC layer packets.
ifInMulticastPkts
ifHCInMulticastPkts
Return the number of Multicast packets received
on this interface. This includes data packets as
well as MAC layer packets.
ifInBroadcastPkts
ifHCInBroadcastPkts
Return the number of Broadcast packets received
on this interface. This includes data packets
as well as MAC layer packets.
ifInDiscards The total number of received packets that have
been discarded.
The possible reasons are: buffer shortage.
ifInErrors The number of inbound packets that contained
errors preventing them from being deliverable
to higher layers.
Possible reasons are: MAC FCS error.
ifInUnknownProtos The number of frames with an unknown packet type.
These are MAC frames with an unknown packet type.
ifOutOctets Return zero.
ifHCOutOctets
ifOutUcastPkts Return zero.
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ifHCOutUcastPkts
ifOutMulticastPkts
ifHCOutMulticastPkts
Return zero.
ifOutBroadcastPkts
ifHCOutBroadcastPkts
Return zero.
ifOutDiscards Return zero.
ifOutErrors Return zero.
3.2.5.4. ifEntry for the MAC Layer
The ifEntry for the MAC Layer supports the ifGeneralInformationGroup
and the ifPacketGroup of the Interfaces MIB. This interface provides
an aggregate view of status for the lower level Downstream and
Upstream interfaces.
ifTable Comments
============== ===========================================
ifIndex Each RF Cable MAC layer entity is represented
by an ifEntry.
ifType The IANA value of docsCableMaclayer(127).
ifSpeed Return zero.
ifPhysAddress Return the physical address of this interface.
ifAdminStatus The administrative status of this interface.
ifOperStatus The current operational status of the MAC
layer interface.
ifHighSpeed Return zero.
ifMtu Return 1500.
ifInOctets The total number of data octets received on this
ifHCInOctets interface, targeted for upper protocol layers.
ifInUcastPkts The number of Unicast packets received on this
ifHCInUcastPkts interface, targeted for upper protocol layers.
ifInMulticastPkts
ifHCInMulticastPkts
Return the number of Multicast packets received
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on this interface, targeted for upper protocol
layers.
ifInBroadcastPkts
ifHCInBroadcastPkts
Return the number of Broadcast packets received
on this interface, targeted for upper protocol
layers.
ifInDiscards The total number of received packets that have
been discarded.
The possible reasons are: buffer shortage.
ifInErrors The number of inbound packets that contained
errors preventing them from being deliverable
to higher layers.
Possible reasons are: data packet FCS error,
invalid MAC header.
ifInUnknownProtos The number of frames with an unknown packet type.
This is the number of data packets targeted for
upper protocol layers with an unknown packet type.
ifOutOctets The total number of octets, received from upper
ifHCOutOctets protocol layers and transmitted on this interface.
ifOutUcastPkts The number of Unicast packets, received from upper
ifHCOutUcastPkts protocol layers and transmitted on this interface.
ifOutMulticastPkts
ifHCOutMulticastPkts
Return the number of Multicast packets received
from upper protocol layers and transmitted on this
interface.
ifOutBroadcastPkts
ifHCOutBroadcastPkts
Return the number of broadcast packets received
from upper protocol layers and transmitted on this
interface.
ifOutDiscards The total number of outbound packets which
were discarded. Possible reasons are:
buffer shortage.
ifOutErrors The number of packets which could not be
transmitted due to errors.
ifPromiscuousMode Refer to the Interfaces MIB.
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4. Definitions
DOCS-IF-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
OBJECT-TYPE,
-- do not import BITS,
Unsigned32,
Integer32,
Counter32,
Counter64,
TimeTicks,
IpAddress,
transmission
FROM SNMPv2-SMI
TEXTUAL-CONVENTION,
MacAddress,
RowStatus,
TruthValue,
TimeInterval,
TimeStamp
FROM SNMPv2-TC
OBJECT-GROUP,
MODULE-COMPLIANCE
FROM SNMPv2-CONF
ifIndex, InterfaceIndexOrZero
FROM IF-MIB
InetAddressType,
InetAddress
FROM INET-ADDRESS-MIB;
docsIfMib MODULE-IDENTITY
LAST-UPDATED "0111200000Z" -- November 20, 2001
ORGANIZATION "IETF IPCDN Working Group"
CONTACT-INFO
" Aviv Goren
Postal: Terayon
2952 Bunker Hill Lane
Santa Clara, CA
U.S.A.
Phone: +1 408 727 4400
E-mail: aviv.goren@terayon.com
David Raftus
Postal: Imedia Semiconductor
340 Terry Fox Drive, Suite 202
Ottawa Ontario
Canada
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Phone: +1 613 592 1052
E-mail: david.raftus@imedia.com
IETF IPCDN Working Group
General Discussion: ipcdn@ietf.org
Subscribe: http://www.ietf.org/mailman/listinfo/ipcdn
Archive: ftp://ftp.ietf.org/ietf-mail-archive/ipcdn
Co-chairs: Richard Woundy, rwoundy@cisco.com
Andrew Valentine, a.valentine@eu.hns.com"
DESCRIPTION
"This is the MIB Module for DOCSIS 2.0 compliant Radio
Frequency (RF) interfaces in Cable Modems (CM) and
Cable Modem Termination Systems (CMTS)."
REVISION "0111200000Z"
DESCRIPTION
"Modified by Aviv Goren and David Raftus to accommodate
Docsis 2.0 Advanced Phy capabilities, as well as to
incorporate objects from the docsIfExt mib. "
REVISION "0102230000Z"
DESCRIPTION
"Modified by Rich Woundy to use IPv6-friendly
address objects, to accommodate EuroDOCSIS, and
to correct the SYNTAX of various objects."
REVISION "9908190000Z"
DESCRIPTION
"Initial Version, published as RFC 2670.
Modified by Mike StJohns to fix problems identified by
the first pass of the MIB doctor. Of special note,
docsIfRangingResp and docsIfCmtsInsertionInterval were
obsoleted and replaced by other objects with the same
functionality, but more appropriate SYNTAX."
::= { transmission 127 }
-- Textual Conventions
TenthdBmV ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d-1"
STATUS current
DESCRIPTION
"This data type represents power levels that are normally
expressed in dBmV. Units are in tenths of a dBmV;
for example, 5.1 dBmV will be represented as 51."
SYNTAX Integer32
TenthdB ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d-1"
STATUS current
DESCRIPTION
"This data type represents power levels that are normally
expressed in dB. Units are in tenths of a dB;
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for example, 5.1 dB will be represented as 51."
SYNTAX Integer32
DocsisVersion ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION "Indicates the DOCSIS version number."
SYNTAX INTEGER {
docsis10 (1),
docsis11 (2),
docsis20 (3)
}
DocsisUpstreamType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION "Indicates the DOCSIS Upstream Channel Type."
SYNTAX INTEGER {
tdma (1),
atdma (2),
scdma (3),
tdmaAndAtdma (4)
}
docsIfMibObjects OBJECT IDENTIFIER ::= { docsIfMib 1 }
docsIfBaseObjects OBJECT IDENTIFIER ::= { docsIfMibObjects 1 }
docsIfCmObjects OBJECT IDENTIFIER ::= { docsIfMibObjects 2 }
docsIfCmtsObjects OBJECT IDENTIFIER ::= { docsIfMibObjects 3 }
--
-- BASE GROUP
--
--
-- The following table is implemented on both the Cable Modem (CM)
-- and the Cable Modem Termination System (CMTS). This table is
-- read only for the CM.
--
docsIfDownstreamChannelTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfDownstreamChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table describes the attributes of downstream
channels (frequency bands)."
REFERENCE
"Document [25] from References, Table 6-12 and Table 6-13."
::= { docsIfBaseObjects 1 }
docsIfDownstreamChannelEntry OBJECT-TYPE
SYNTAX DocsIfDownstreamChannelEntry
MAX-ACCESS not-accessible
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STATUS current
DESCRIPTION
"An entry provides a list of attributes for a single
Downstream channel.
An entry in this table exists for each ifEntry with an
ifType of docsCableDownstream(128)."
INDEX { ifIndex }
::= { docsIfDownstreamChannelTable 1 }
DocsIfDownstreamChannelEntry ::= SEQUENCE {
docsIfDownChannelId Integer32,
docsIfDownChannelFrequency Integer32,
docsIfDownChannelWidth Integer32,
docsIfDownChannelModulation INTEGER,
docsIfDownChannelInterleave INTEGER,
docsIfDownChannelPower TenthdBmV,
docsIfDownChannelAnnex INTEGER
}
docsIfDownChannelId OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Cable Modem Termination System (CMTS) identification
of the downstream channel within this particular MAC
interface. If the interface is down, the object returns
the most current value. If the downstream channel ID is
unknown, this object returns a value of 0."
::= { docsIfDownstreamChannelEntry 1 }
docsIfDownChannelFrequency OBJECT-TYPE
SYNTAX Integer32 (0..1000000000)
UNITS "hertz"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The center of the downstream frequency associated with
this channel. This object will return the current tuner
frequency. If a CMTS provides IF output, this object
will return 0, unless this CMTS is in control of the
final downstream RF frequency. See the associated
compliance object for a description of valid frequencies
that may be written to this object."
REFERENCE
"Document [25] from References, Tables 4-1, 6-14."
::= { docsIfDownstreamChannelEntry 2 }
docsIfDownChannelWidth OBJECT-TYPE
SYNTAX Integer32 (0..16000000)
UNITS "hertz"
MAX-ACCESS read-write
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STATUS current
DESCRIPTION
"The bandwidth of this downstream channel. Most
implementations are expected to support a channel width
of 6 MHz (North America) and/or 8 MHz (Europe). See the
associated compliance object for a description of the
valid channel widths for this object."
REFERENCE
"Document [25] from References, Table 6-14."
::= { docsIfDownstreamChannelEntry 3 }
docsIfDownChannelModulation OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
other(2),
qam64(3),
qam256(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The modulation type associated with this downstream
channel. If the interface is down, this object either
returns the configured value (CMTS), the most current
value (CM), or the value of unknown(1). See the
associated conformance object for write conditions and
limitations. See the reference for specifics on the
modulation profiles implied by qam64 and qam256."
REFERENCE
"Document [25] from References, Table 6-14."
::= { docsIfDownstreamChannelEntry 4 }
docsIfDownChannelInterleave OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
other(2),
taps8Increment16(3),
taps16Increment8(4),
taps32Increment4(5),
taps64Increment2(6),
taps128Increment1(7),
taps12increment17(8)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The Forward Error Correction (FEC) interleaving used
for this downstream channel.
Values are defined as follows:
taps8Increment16(3): protection 5.9/4.1 usec,
latency .22/.15 msec
taps16Increment8(4): protection 12/8.2 usec,
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latency .48/.33 msec
taps32Increment4(5): protection 24/16 usec,
latency .98/.68 msec
taps64Increment2(6): protection 47/33 usec,
latency 2/1.4 msec
taps128Increment1(7): protection 95/66 usec,
latency 4/2.8 msec
taps12increment17(8): protection 18/14 usec,
latency 0.43/0.32 msec
taps12increment17 is implemented in
conformance with EuroDOCSIS document
'Adapted MIB-definitions - and a
clarification for MPEG-related issues - for
EuroDOCSIS cable modem systems' by tComLabs
and should only be used for a EuroDOCSIS MAC
interface.
If the interface is down, this object either returns
the configured value (CMTS), the most current value (CM),
or the value of unknown(1).
The value of other(2) is returned if the interleave
is known but not defined in the above list.
See the associated conformance object for write
conditions and limitations. See the reference for the FEC
configuration described by the setting of this object."
REFERENCE
"Document [25] from References, Table 6-13."
::= { docsIfDownstreamChannelEntry 5 }
docsIfDownChannelPower OBJECT-TYPE
SYNTAX TenthdBmV
UNITS "dBmV"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"At the CMTS, the operational transmit power. At the CM,
the received power level. May be set to zero at the CM
if power level measurement is not supported.
If the interface is down, this object either returns
the configured value (CMTS), the most current value (CM)
or the value of 0. See the associated conformance object
for write conditions and limitations. See the reference
for recommended and required power levels."
REFERENCE
"Document [25] from References,Table 6-15."
::= { docsIfDownstreamChannelEntry 6 }
docsIfDownChannelAnnex OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
other(2),
annexA(3),
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annexB(4),
annexC(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of this object indicates the conformance of
the implementation to important regional cable standards.
annexA : Annex A from ITU-J83 is used.
annexB : Annex B from ITU-J83 is used.
annexC : Annex C from ITU-J83 is used.
AnnexB is used for DOCSIS implementations"
REFERENCE
"Document [28] from References, Section 2.2"
::= { docsIfDownstreamChannelEntry 7 }
--
-- The following table is implemented on both the CM and the CMTS.
-- For the CM, only attached channels appear in the table. For the
-- CM, this table is read only as well.
--
docsIfUpstreamChannelTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfUpstreamChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table describes the attributes of attached upstream
channels."
::= { docsIfBaseObjects 2 }
docsIfUpstreamChannelEntry OBJECT-TYPE
SYNTAX DocsIfUpstreamChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"List of attributes for a single upstream channel. For
Docsis 2.0 CMTSs, an entry in this table exists for
each ifEntry with an ifType of docsCableUpstreamChannel (205).
For Docsis 1.x CM/CMTSs and Docsis 2.0 CMs, an entry in this table exists
for each ifEntry with an ifType of docsCableUpstreamInterface (129)."
INDEX { ifIndex }
::= { docsIfUpstreamChannelTable 1 }
DocsIfUpstreamChannelEntry ::= SEQUENCE {
docsIfUpChannelId Integer32,
docsIfUpChannelFrequency Integer32,
docsIfUpChannelWidth Integer32,
docsIfUpChannelModulationProfile Unsigned32,
docsIfUpChannelSlotSize Unsigned32,
docsIfUpChannelTxTimingOffset Unsigned32,
docsIfUpChannelRangingBackoffStart Integer32,
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docsIfUpChannelRangingBackoffEnd Integer32,
docsIfUpChannelTxBackoffStart Integer32,
docsIfUpChannelTxBackoffEnd Integer32,
docsIfUpChannelScdmaActiveCodes Unsigned32,
docsIfUpChannelScdmaCodesPerSlot Integer32,
docsIfUpChannelScdmaFrameSize Unsigned32,
docsIfUpChannelScdmaHoppingSeed Unsigned32,
docsIfUpChannelType DocsisUpstreamType
}
docsIfUpChannelId OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The CMTS identification of the upstream channel."
::= { docsIfUpstreamChannelEntry 1 }
docsIfUpChannelFrequency OBJECT-TYPE
SYNTAX Integer32 (0..1000000000)
UNITS "hertz"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The center of the frequency band associated with this
upstream interface. This object returns 0 if the frequency
is undefined or unknown. Minimum permitted upstream
frequency is 5,000,000 Hz for current technology. See
the associated conformance object for write conditions
and limitations."
REFERENCE
"Document [25] from References, Table 4-2."
::= { docsIfUpstreamChannelEntry 2 }
docsIfUpChannelWidth OBJECT-TYPE
SYNTAX Integer32 (0..64000000)
UNITS "hertz"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The bandwidth of this upstream interface. This object
returns 0 if the interface width is undefined or unknown.
Minimum permitted interface width is 200,000 Hz currently.
See the associated conformance object for write conditions
and limitations."
REFERENCE
"Document [25] from References, Table 6-12."
::= { docsIfUpstreamChannelEntry 3 }
docsIfUpChannelModulationProfile OBJECT-TYPE
SYNTAX Unsigned32
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MAX-ACCESS read-write
STATUS current
DESCRIPTION
"An entry identical to the docsIfModIndex in the
docsIfCmtsModulationTable that describes this channel.
This channel is further instantiated there by a grouping
of interval usage codes which together fully describe the
channel modulation. This object returns 0 if the
docsIfCmtsModulationTable entry does not exist or
docsIfCmtsModulationTable is empty. See
the associated conformance object for write conditions
and limitations."
REFERENCE
"Document [25] from References, Table 8-19."
::= { docsIfUpstreamChannelEntry 4 }
docsIfUpChannelSlotSize OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Applicable to TDMA and ATDMA channel types only.
The number of 6.25 microsecond ticks in each upstream mini-
slot. Returns zero if the value is undefined, unknown or in
case of an SCDMA channel.
See the associated conformance object for write
conditions and limitations. "
REFERENCE
"Document [25] from References, Section 8.1.2.4."
::= { docsIfUpstreamChannelEntry 5 }
docsIfUpChannelTxTimingOffset OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"At the CM, a measure of the current round trip time obtained from the
ranging offset (initial ranging offset + ranging offset adjustments).
At the CMTS, the maximum of timing offset, among all the CMs that
are/were present on the channel, taking into account all ( initial +
periodic )timing offset corrections that were sent for each of the CMs.
Generally, these measurements are positive, but if the
measurements are negative, the value of this object is zero. Used for
timing of CM upstream transmissions to ensure synchronized arrivals at
the CMTS. Units are in terms of (6.25 microseconds/64)."
REFERENCE
"Document [25] from References, Section 6.2.18."
::= { docsIfUpstreamChannelEntry 6 }
docsIfUpChannelRangingBackoffStart OBJECT-TYPE
SYNTAX Integer32 (0..16)
MAX-ACCESS read-write
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STATUS current
DESCRIPTION
"The initial random backoff window to use when retrying
Ranging Requests. Expressed as a power of 2. A value of 16
at the CMTS indicates that a proprietary adaptive retry
mechanism is to be used. See the associated conformance
object for write conditions and limitations."
REFERENCE
"Document [25] from References, Section 8.3.4."
::= { docsIfUpstreamChannelEntry 7 }
docsIfUpChannelRangingBackoffEnd OBJECT-TYPE
SYNTAX Integer32 (0..16)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The final random backoff window to use when retrying
Ranging Requests. Expressed as a power of 2. A value of 16
at the CMTS indicates that a proprietary adaptive retry
mechanism is to be used. See the associated conformance
object for write conditions and limitations."
REFERENCE
"Document [25] from References, Section 8.3.4."
::= { docsIfUpstreamChannelEntry 8 }
docsIfUpChannelTxBackoffStart OBJECT-TYPE
SYNTAX Integer32 (0..16)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The initial random backoff window to use when retrying
transmissions. Expressed as a power of 2. A value of 16
at the CMTS indicates that a proprietary adaptive retry
mechanism is to be used. See the associated conformance
object for write conditions and limitations."
REFERENCE
"Document [25] from References, Section 8.3.4."
::= { docsIfUpstreamChannelEntry 9 }
docsIfUpChannelTxBackoffEnd OBJECT-TYPE
SYNTAX Integer32 (0..16)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The final random backoff window to use when retrying
transmissions. Expressed as a power of 2. A value of 16
at the CMTS indicates that a proprietary adaptive retry
mechanism is to be used. See the associated conformance
object for write conditions and limitations."
REFERENCE
"Document [25] from References, Section 8.3.4."
::= { docsIfUpstreamChannelEntry 10 }
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docsIfUpChannelScdmaActiveCodes OBJECT-TYPE
SYNTAX Unsigned32 (0 | 2..128)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Applicable for SCDMA channel types only.
Number of active codes. Returns zero for
Non-SCDMA channel types."
REFERENCE
"Document [25] from References, Section 6.2.11.2.1."
::= { docsIfUpstreamChannelEntry 11 }
docsIfUpChannelScdmaCodesPerSlot OBJECT-TYPE
SYNTAX Integer32(0 | 2..32)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Applicable for SCDMA channel types only.
The number of SCDMA codes per mini-slot.
Returns zero if the value is undefined, unknown or in
case of a TDMA or ATDMA channel."
REFERENCE
"Document [25] from References, Section 6.2.11.2.1."
::= { docsIfUpstreamChannelEntry 12 }
docsIfUpChannelScdmaFrameSize OBJECT-TYPE
SYNTAX Unsigned32 (0..32)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Applicable for SCDMA channel types only.
SCDMA Frame size in units of spreading intervals.
This value returns zero for non SCDMA Profiles."
REFERENCE
" Document [25] from References, Section 6.2.12."
::= { docsIfUpstreamChannelEntry 13 }
docsIfUpChannelScdmaHoppingSeed OBJECT-TYPE
SYNTAX Unsigned32 (0..32767)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Applicable for SCDMA channel types only.
15 bit seed used for code hopping sequence initialization.
Returns zero for non-SCDMA channel types."
REFERENCE
"Document [25] from References, Section 6.2.14.1."
::= { docsIfUpstreamChannelEntry 14 }
docsIfUpChannelType OBJECT-TYPE
SYNTAX DocsisUpstreamType
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MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Defines the Upstream channel type.
Given the channel type, other channel attributes can be checked
for value validity at the time of entry creation and update."
REFERENCE
"Document [25] from References, Section 6.2.1."
::= { docsIfUpstreamChannelEntry 15 }
-- The following table describes the attributes of each class of
-- service. The entries in this table are referenced from the
-- docsIfServiceEntries. They exist as a separate table in order to
-- reduce redundant information in docsIfServiceTable.
--
-- This table is implemented at both the CM and the CMTS.
-- The CM need only maintain entries for the classes of service
-- referenced by its docsIfServiceTable.
--
docsIfQosProfileTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfQosProfileEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes the attributes for each class of service."
::= { docsIfBaseObjects 3 }
docsIfQosProfileEntry OBJECT-TYPE
SYNTAX DocsIfQosProfileEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes the attributes for a single class of service.
If implemented as read-create in the Cable Modem
Termination System, creation of entries in this table is
controlled by the value of docsIfCmtsQosProfilePermissions.
If implemented as read-only, entries are created based
on information in REG-REQ MAC messages received from
Cable Modems (Cable Modem Termination System
implementation), or based on information extracted from
the TFTP option file (Cable Modem implementation).
In the Cable Modem Termination system, read-only entries
are removed if no longer referenced by
docsIfCmtsServiceTable.
An entry in this table must not be removed while it is
referenced by an entry in docsIfCmServiceTable (Cable Modem)
or docsIfCmtsServiceTable (Cable Modem Termination System).
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An entry in this table should not be changeable while
it is referenced by an entry in docsIfCmtsServiceTable.
If this table is created automatically, there should only
be a single entry for each Class of Service. Multiple
entries with the same Class of Service parameters are not
recommended."
INDEX { docsIfQosProfIndex }
::= { docsIfQosProfileTable 1 }
DocsIfQosProfileEntry ::= SEQUENCE {
docsIfQosProfIndex Integer32,
docsIfQosProfPriority Integer32,
docsIfQosProfMaxUpBandwidth Integer32,
docsIfQosProfGuarUpBandwidth Integer32,
docsIfQosProfMaxDownBandwidth Integer32,
docsIfQosProfMaxTxBurst Integer32, -- Deprecated
docsIfQosProfBaselinePrivacy TruthValue,
docsIfQosProfStatus RowStatus,
docsIfQosProfMaxTransmitBurst Integer32
}
docsIfQosProfIndex OBJECT-TYPE
SYNTAX Integer32 (1..16383)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index value that uniquely identifies an entry
in the docsIfQosProfileTable."
::= { docsIfQosProfileEntry 1 }
docsIfQosProfPriority OBJECT-TYPE
SYNTAX Integer32 (0..7)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A relative priority assigned to this service when
allocating bandwidth. Zero indicates lowest priority
and seven indicates highest priority.
Interpretation of priority is device-specific.
MUST NOT be changed while this row is active."
REFERENCE
"Document [25] from References, Appendix C.1.1.4."
DEFVAL { 0 }
::= { docsIfQosProfileEntry 2 }
docsIfQosProfMaxUpBandwidth OBJECT-TYPE
SYNTAX Integer32 (0..100000000)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum upstream bandwidth, in bits per second,
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allowed for a service with this service class.
Zero if there is no restriction of upstream bandwidth.
MUST NOT be changed while this row is active."
REFERENCE
"Document [25] from References, Appendix C.1.1.4."
DEFVAL { 0 }
::= { docsIfQosProfileEntry 3 }
docsIfQosProfGuarUpBandwidth OBJECT-TYPE
SYNTAX Integer32 (0..100000000)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Minimum guaranteed upstream bandwidth, in bits per second,
allowed for a service with this service class.
MUST NOT be changed while this row is active."
REFERENCE
"Document [25] from References, Appendix C.1.1.4."
DEFVAL { 0 }
::= { docsIfQosProfileEntry 4 }
docsIfQosProfMaxDownBandwidth OBJECT-TYPE
SYNTAX Integer32 (0..100000000)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum downstream bandwidth, in bits per second,
allowed for a service with this service class.
Zero if there is no restriction of downstream bandwidth.
MUST NOT be changed while this row is active."
REFERENCE
"Document [25] from References, Appendix C.1.1.4."
DEFVAL { 0 }
::= { docsIfQosProfileEntry 5 }
docsIfQosProfMaxTxBurst OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-create
STATUS deprecated
DESCRIPTION
"The maximum number of mini-slots that may be requested
for a single upstream transmission.
A value of zero means there is no limit.
MUST NOT be changed while this row is active.
This object has been deprecated and replaced by
docsIfQosProfMaxTransmitBurst, to fix a mismatch
of the units and value range with respect to the DOCSIS
Maximum Upstream Channel Transmit Burst Configuration
Setting."
REFERENCE
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"Document [25] from References, C.1.1.4."
DEFVAL { 0 }
::= { docsIfQosProfileEntry 6 }
docsIfQosProfBaselinePrivacy OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates whether Baseline Privacy is enabled for this
service class.
MUST NOT be changed while this row is active."
DEFVAL { false }
::= { docsIfQosProfileEntry 7 }
docsIfQosProfStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This is object is to used to create or delete rows in
this table. This object MUST NOT be changed from active
while the row is referenced by the any entry in either
docsIfCmServiceTable (on the CM), or the
docsIfCmtsServiceTable (on the CMTS)."
::= { docsIfQosProfileEntry 8 }
docsIfQosProfMaxTransmitBurst OBJECT-TYPE
SYNTAX Integer32 (0..1522)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum number of bytes that may be requested for a
single upstream transmission. A value of zero means there
is no limit. Note: This value does not include any
physical layer overhead.
MUST NOT be changed while this row is active."
REFERENCE
"Document [25] from References, Appendix C.1.1.4."
DEFVAL { 0 }
::= { docsIfQosProfileEntry 9 }
docsIfSignalQualityTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfSignalQualityEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"At the CM, describes the PHY signal quality of downstream
channels. At the CMTS, describes the PHY signal quality of
upstream channels. At the CMTS, this table may exclude
contention intervals."
::= { docsIfBaseObjects 4 }
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docsIfSignalQualityEntry OBJECT-TYPE
SYNTAX DocsIfSignalQualityEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"At the CM, describes the PHY characteristics of a
downstream channel. At the CMTS, describes the PHY signal
quality of an upstream channel.
An entry in this table exists for each ifEntry with an
ifType of docsCableUpstream(129) for Cable Modem Termination
Systems and docsCableDownstream(128) for Cable Modems."
INDEX { ifIndex }
::= { docsIfSignalQualityTable 1 }
DocsIfSignalQualityEntry ::= SEQUENCE {
docsIfSigQIncludesContention TruthValue,
docsIfSigQUnerroreds Counter32,
docsIfSigQCorrecteds Counter32,
docsIfSigQUncorrectables Counter32,
docsIfSigQSignalNoise TenthdB,
docsIfSigQMicroreflections Integer32,
docsIfSigQEqualizationData OCTET STRING
}
docsIfSigQIncludesContention OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"true(1) if this CMTS includes contention intervals in
the counters in this table. Always false(2) for CMs."
REFERENCE
"Document [25] from References,
Section 9.4.1"
::= { docsIfSignalQualityEntry 1 }
docsIfSigQUnerroreds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Codewords received on this channel without error.
This includes all codewords, whether or not they
were part of frames destined for this device."
REFERENCE
"Document [25] from References, Section 6.2.5."
::= { docsIfSignalQualityEntry 2 }
docsIfSigQCorrecteds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"Codewords received on this channel with correctable
errors. This includes all codewords, whether or not
they were part of frames destined for this device."
REFERENCE
"Document [25] from References, Section 6.2.5."
::= { docsIfSignalQualityEntry 3 }
docsIfSigQUncorrectables OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Codewords received on this channel with uncorrectable
errors. This includes all codewords, whether or not
they were part of frames destined for this device."
REFERENCE
"Document [25] from References, Section 6.2.5."
::= { docsIfSignalQualityEntry 4 }
docsIfSigQSignalNoise OBJECT-TYPE
SYNTAX TenthdB
UNITS "dB"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Signal/Noise ratio as perceived for this channel.
At the CM, describes the Signal/Noise of the downstream
channel. At the CMTS, describes the average Signal/Noise
of the upstream channel."
REFERENCE
"Document [25] from References, Tables 4-1 and 4-2"
::= { docsIfSignalQualityEntry 5 }
docsIfSigQMicroreflections OBJECT-TYPE
SYNTAX Integer32 (0..255)
UNITS "dBc"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total microreflections including in-channel response
as perceived on this interface, measured in dBc below
the signal level.
This object is not assumed to return an absolutely
accurate value, but should give a rough indication
of microreflections received on this interface.
It is up to the implementer to provide information
as accurate as possible."
REFERENCE
"Document [25] from References, Tables 4-1 and 4-2"
::= { docsIfSignalQualityEntry 6 }
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docsIfSigQEqualizationData OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"At the CM, returns the equalization data for the downstream
channel. At the CMTS, returns the average equalization
data for the upstream channel. Returns an empty string
if the value is unknown or if there is no equalization
data available or defined."
REFERENCE
"Document [25] from References, Table 8-21."
::= { docsIfSignalQualityEntry 7 }
--
-- DOCSIS Version of the device
--
docsIfDocsisBaseCapability OBJECT-TYPE
SYNTAX DocsisVersion
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indication of the DOCSIS capability of the device.
This object mirrors docsIfDocsisCapability from the
DocsIfExt mib."
REFERENCE
"Document [25] from References, Annex G."
::= { docsIfBaseObjects 5 }
--
-- CABLE MODEM GROUP
--
-- #######
--
-- The CM MAC Table
--
docsIfCmMacTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmMacEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes the attributes of each CM MAC interface,
extending the information available from ifEntry."
::= { docsIfCmObjects 1 }
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docsIfCmMacEntry OBJECT-TYPE
SYNTAX DocsIfCmMacEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry containing objects describing attributes of
each MAC entry, extending the information in ifEntry.
An entry in this table exists for each ifEntry with an
ifType of docsCableMaclayer(127)."
INDEX { ifIndex }
::= { docsIfCmMacTable 1 }
DocsIfCmMacEntry ::= SEQUENCE {
docsIfCmCmtsAddress MacAddress,
docsIfCmCapabilities BITS,
docsIfCmRangingRespTimeout TimeTicks,
docsIfCmRangingTimeout TimeInterval
}
docsIfCmCmtsAddress OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Identifies the CMTS that is believed to control this MAC
domain. At the CM, this will be the source address from
SYNC, MAP, and other MAC-layer messages. If the CMTS is
unknown, returns 00-00-00-00-00-00."
REFERENCE
"Document [25] from References, Section 8.2.2."
::= { docsIfCmMacEntry 1 }
docsIfCmCapabilities OBJECT-TYPE
SYNTAX BITS {
atmCells(0),
concatenation(1)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Identifies the capabilities of the MAC implementation
at this interface. Note that packet transmission is
always supported. Therefore, there is no specific bit
required to explicitly indicate this capability.
Note that BITS objects are encoded most significant bit
first. For example, if bit 1 is set, the value of this
object is the octet string '40'H."
::= { docsIfCmMacEntry 2 }
-- This object has been obsoleted and replaced by
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-- docsIfCmRangingTimeout to correct the typing to TimeInterval. New
-- implementations of the MIB should use docsIfCmRangingTimeout instead.
docsIfCmRangingRespTimeout OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-write
STATUS obsolete
DESCRIPTION
"Waiting time for a Ranging Response packet."
REFERENCE
"Document [25] from References, Section 9.1.6."
DEFVAL { 20 }
::= { docsIfCmMacEntry 3 }
docsIfCmRangingTimeout OBJECT-TYPE
SYNTAX TimeInterval
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Waiting time for a Ranging Response packet."
REFERENCE
"Document [25] from References,
Section 9.1.6, timer T3."
DEFVAL { 20 }
::= { docsIfCmMacEntry 4 }
--
-- CM status table.
-- This table is implemented only at the CM.
--
docsIfCmStatusTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmStatusEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table maintains a number of status objects
and counters for Cable Modems."
::= { docsIfCmObjects 2 }
docsIfCmStatusEntry OBJECT-TYPE
SYNTAX DocsIfCmStatusEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A set of status objects and counters for a single MAC
layer instance in a Cable Modem.
An entry in this table exists for each ifEntry with an
ifType of docsCableMaclayer(127)."
INDEX { ifIndex }
::= { docsIfCmStatusTable 1 }
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DocsIfCmStatusEntry ::= SEQUENCE {
docsIfCmStatusValue INTEGER,
docsIfCmStatusCode OCTET STRING,
docsIfCmStatusTxPower TenthdBmV,
docsIfCmStatusResets Counter32,
docsIfCmStatusLostSyncs Counter32,
docsIfCmStatusInvalidMaps Counter32,
docsIfCmStatusInvalidUcds Counter32,
docsIfCmStatusInvalidRangingResponses Counter32,
docsIfCmStatusInvalidRegistrationResponses Counter32,
docsIfCmStatusT1Timeouts Counter32,
docsIfCmStatusT2Timeouts Counter32,
docsIfCmStatusT3Timeouts Counter32,
docsIfCmStatusT4Timeouts Counter32,
docsIfCmStatusRangingAborteds Counter32,
docsIfCmStatusDocsisOperMode DocsisVersion,
docsIfCmStatusModulationType DocsisUpstreamType
}
docsIfCmStatusValue OBJECT-TYPE
SYNTAX INTEGER {
other(1),
notReady(2),
notSynchronized(3),
phySynchronized(4),
usParametersAcquired(5),
rangingComplete(6),
ipComplete(7),
todEstablished(8),
securityEstablished(9),
paramTransferComplete(10),
registrationComplete(11),
operational(12),
accessDenied(13)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Current Cable Modem connectivity state, as specified
in the RF Interface Specification."
REFERENCE
"Document [25] from References, Section 11.2."
::= { docsIfCmStatusEntry 1 }
docsIfCmStatusCode OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Status code for this Cable Modem as defined in the
RF Interface Specification. The status code consists
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of a single character indicating error groups, followed
by a two- or three-digit number indicating the status
condition."
REFERENCE
"Document [26] from References, Appendix F."
::= { docsIfCmStatusEntry 2 }
docsIfCmStatusTxPower OBJECT-TYPE
SYNTAX TenthdBmV
UNITS "dBmV"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The operational transmit power for the attached upstream
channel."
REFERENCE
"Document [25] from References, Section 6.2.20."
::= { docsIfCmStatusEntry 3 }
docsIfCmStatusResets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the CM reset or initialized this interface."
::= { docsIfCmStatusEntry 4 }
docsIfCmStatusLostSyncs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the CM lost synchronization with
the downstream channel."
REFERENCE
"Document [25] from References, Section 8.3.2."
::= { docsIfCmStatusEntry 5 }
docsIfCmStatusInvalidMaps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the CM received invalid MAP messages."
REFERENCE
"Document [25] from References, Section 8.3.4."
::= { docsIfCmStatusEntry 6 }
docsIfCmStatusInvalidUcds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"Number of times the CM received invalid UCD messages."
REFERENCE
"Document [25] from References, Section 8.3.3."
::= { docsIfCmStatusEntry 7 }
docsIfCmStatusInvalidRangingResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the CM received invalid ranging response
messages."
REFERENCE
"Document [25] from References, Section 8.3.6."
::= { docsIfCmStatusEntry 8 }
docsIfCmStatusInvalidRegistrationResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the CM received invalid registration
response messages."
REFERENCE
"Document [25] from References, Section 8.3.8."
::= { docsIfCmStatusEntry 9 }
docsIfCmStatusT1Timeouts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times counter T1 expired in the CM."
REFERENCE
"Document [25] from References, Figure 9-2."
::= { docsIfCmStatusEntry 10 }
docsIfCmStatusT2Timeouts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times counter T2 expired in the CM."
REFERENCE
"Document [25] from References, Figure 9-2."
::= { docsIfCmStatusEntry 11 }
docsIfCmStatusT3Timeouts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"Number of times counter T3 expired in the CM."
REFERENCE
"Document [25] from References, Figure 9-2."
::= { docsIfCmStatusEntry 12 }
docsIfCmStatusT4Timeouts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times counter T4 expired in the CM."
REFERENCE
"Document [25] from References, Figure 9-2."
::= { docsIfCmStatusEntry 13 }
docsIfCmStatusRangingAborteds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the ranging process was aborted
by the CMTS."
REFERENCE
"Document [25] from References, Section 9.3.3."
::= { docsIfCmStatusEntry 14 }
docsIfCmStatusDocsisOperMode OBJECT-TYPE
SYNTAX DocsisVersion
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indication whether the device has registered as a 1.0, 1.1 or 2.0.
For unregistered CM, it is always the same as
docsIfDocsisBaseCapability.
This object mirrors docsIfCmDocsisOperMode from the docsIfExt mib."
REFERENCE
"Document [25] from References, Annex G."
::= { docsIfCmStatusEntry 15 }
docsIfCmStatusModulationType OBJECT-TYPE
SYNTAX DocsisUpstreamType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates modulation type currently used by the CM."
REFERENCE
"Document [25] from References, Section 6.2.1."
::= { docsIfCmStatusEntry 16 }
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--
-- The Cable Modem Service Table
--
docsIfCmServiceTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmServiceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes the attributes of each upstream service queue
on a CM."
::= { docsIfCmObjects 3 }
docsIfCmServiceEntry OBJECT-TYPE
SYNTAX DocsIfCmServiceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes the attributes of an upstream bandwidth service
queue.
An entry in this table exists for each Service ID.
The primary index is an ifIndex with an ifType of
docsCableMaclayer(127)."
INDEX { ifIndex, docsIfCmServiceId }
::= { docsIfCmServiceTable 1 }
DocsIfCmServiceEntry ::= SEQUENCE {
docsIfCmServiceId Integer32,
docsIfCmServiceQosProfile Integer32,
docsIfCmServiceTxSlotsImmed Counter32,
docsIfCmServiceTxSlotsDed Counter32,
docsIfCmServiceTxRetries Counter32,
docsIfCmServiceTxExceededs Counter32,
docsIfCmServiceRqRetries Counter32,
docsIfCmServiceRqExceededs Counter32,
docsIfCmServiceExtTxSlotsImmed Counter64,
docsIfCmServiceExtTxSlotsDed Counter64
}
docsIfCmServiceId OBJECT-TYPE
SYNTAX Integer32 (1..16383)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Identifies a service queue for upstream bandwidth. The
attributes of this service queue are shared between the
CM and the CMTS. The CMTS allocates upstream bandwidth
to this service queue based on requests from the CM and
on the class of service associated with this queue."
::= { docsIfCmServiceEntry 1 }
docsIfCmServiceQosProfile OBJECT-TYPE
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SYNTAX Integer32 (0..16383)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The index in docsIfQosProfileTable describing the quality
of service attributes associated with this particular
service. If no associated entry in docsIfQosProfileTable
exists, this object returns a value of zero."
::= { docsIfCmServiceEntry 2 }
docsIfCmServiceTxSlotsImmed OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of upstream mini-slots which have been used to
transmit data PDUs in immediate (contention) mode. This
includes only those PDUs that are presumed to have
arrived at the headend (i.e., those which were explicitly
acknowledged.) It does not include retransmission attempts
or mini-slots used by Requests."
REFERENCE
"Document [25] from References, Section 9.4."
::= { docsIfCmServiceEntry 3 }
docsIfCmServiceTxSlotsDed OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of upstream mini-slots which have been used to
transmit data PDUs in dedicated mode (i.e., as a result
of a unicast Data Grant)."
REFERENCE
"Document [25] from References, Section 9.4."
::= { docsIfCmServiceEntry 4 }
docsIfCmServiceTxRetries OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of attempts to transmit data PDUs containing
requests for acknowledgment that did not result in
acknowledgment."
REFERENCE
"Document [25] from References, Section 9.4."
::= { docsIfCmServiceEntry 5 }
docsIfCmServiceTxExceededs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"The number of data PDUs transmission failures due to
excessive retries without acknowledgment."
REFERENCE
"Document [25] from References, Section 9.4."
::= { docsIfCmServiceEntry 6 }
docsIfCmServiceRqRetries OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of attempts to transmit bandwidth requests
which did not result in acknowledgment."
REFERENCE
"Document [25] from References, Section 9.4."
::= { docsIfCmServiceEntry 7 }
docsIfCmServiceRqExceededs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of requests for bandwidth which failed due to
excessive retries without acknowledgment."
REFERENCE
"Document [25] from References, Section 9.4."
::= { docsIfCmServiceEntry 8 }
docsIfCmServiceExtTxSlotsImmed OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of upstream mini-slots which have been used to
transmit data PDUs in immediate (contention) mode. This
includes only those PDUs that are presumed to have
arrived at the headend (i.e., those which were explicitly
acknowledged.) It does not include retransmission attempts
or mini-slots used by Requests."
REFERENCE
"Document [25] from References, Section 9.4."
::= { docsIfCmServiceEntry 9 }
docsIfCmServiceExtTxSlotsDed OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of upstream mini-slots which have been used to
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transmit data PDUs in dedicated mode (i.e., as a result
of a unicast Data Grant)."
REFERENCE
"Document [25] from References, Section 9.4."
::= { docsIfCmServiceEntry 10 }
--
-- CMTS GROUP
--
--
-- The CMTS MAC Table
--
docsIfCmtsMacTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmtsMacEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes the attributes of each CMTS MAC interface,
extending the information available from ifEntry.
Mandatory for all CMTS devices."
::= { docsIfCmtsObjects 1 }
docsIfCmtsMacEntry OBJECT-TYPE
SYNTAX DocsIfCmtsMacEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry containing objects describing attributes of each
MAC entry, extending the information in ifEntry.
An entry in this table exists for each ifEntry with an
ifType of docsCableMaclayer(127)."
INDEX { ifIndex }
::= { docsIfCmtsMacTable 1 }
DocsIfCmtsMacEntry ::= SEQUENCE {
docsIfCmtsCapabilities BITS,
docsIfCmtsSyncInterval Integer32,
docsIfCmtsUcdInterval Integer32,
docsIfCmtsMaxServiceIds Integer32,
docsIfCmtsInsertionInterval TimeTicks, -- Obsolete
docsIfCmtsInvitedRangingAttempts Integer32,
docsIfCmtsInsertInterval TimeInterval
}
docsIfCmtsCapabilities OBJECT-TYPE
SYNTAX BITS {
atmCells(0),
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concatenation(1)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Identifies the capabilities of the CMTS MAC
implementation at this interface. Note that packet
transmission is always supported. Therefore, there
is no specific bit required to explicitly indicate
this capability.
Note that BITS objects are encoded most significant bit
first. For example, if bit 1 is set, the value of this
object is the octet string '40'H."
::= { docsIfCmtsMacEntry 1 }
docsIfCmtsSyncInterval OBJECT-TYPE
SYNTAX Integer32 (1..200)
UNITS "Milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The interval between CMTS transmission of successive SYNC
messages at this interface."
REFERENCE
"Document [25] from References, Section 9.3."
::= { docsIfCmtsMacEntry 2 }
docsIfCmtsUcdInterval OBJECT-TYPE
SYNTAX Integer32 (1..2000)
UNITS "Milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The interval between CMTS transmission of successive
Upstream Channel Descriptor messages for each upstream
channel at this interface."
REFERENCE
"Document [25] from References, Section 9.3"
::= { docsIfCmtsMacEntry 3 }
docsIfCmtsMaxServiceIds OBJECT-TYPE
SYNTAX Integer32 (1..16383)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum number of service IDs that may be
simultaneously active."
::= { docsIfCmtsMacEntry 4 }
-- This object has been obsoleted and replaced by
-- docsIfCmtsInsertInterval to fix a SYNTAX typing problem. New
-- implementations of this MIB should use that object instead.
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docsIfCmtsInsertionInterval OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-write
STATUS obsolete
DESCRIPTION
"The amount of time to elapse between each broadcast
station maintenance grant. Broadcast station maintenance
grants are used to allow new cable modems to join the
network. Zero indicates that a vendor-specific algorithm
is used instead of a fixed time. Maximum amount of time
permitted by the specification is 2 seconds."
REFERENCE
"Document [25] from References, Annex B."
::= { docsIfCmtsMacEntry 5 }
docsIfCmtsInvitedRangingAttempts OBJECT-TYPE
SYNTAX Integer32 (0..1024)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of attempts to make on invitations
for ranging requests. A value of zero means the system
should attempt to range forever."
REFERENCE
"Document [25] from References, Section 9.3.3 and Annex B."
::= { docsIfCmtsMacEntry 6 }
docsIfCmtsInsertInterval OBJECT-TYPE
SYNTAX TimeInterval
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The amount of time to elapse between each broadcast
station maintenance grant. Broadcast station maintenance
grants are used to allow new cable modems to join the
network. Zero indicates that a vendor-specific algorithm
is used instead of a fixed time. Maximum amount of time
permitted by the specification is 2 seconds."
REFERENCE
"Document [25] from References, Annex B."
::= { docsIfCmtsMacEntry 7 }
--
--
-- CMTS status table.
--
docsIfCmtsStatusTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmtsStatusEntry
MAX-ACCESS not-accessible
STATUS current
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DESCRIPTION
"For the MAC layer, this group maintains a number of
status objects and counters."
::= { docsIfCmtsObjects 2 }
docsIfCmtsStatusEntry OBJECT-TYPE
SYNTAX DocsIfCmtsStatusEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Status entry for a single MAC layer.
An entry in this table exists for each ifEntry with an
ifType of docsCableMaclayer(127)."
INDEX { ifIndex }
::= { docsIfCmtsStatusTable 1 }
DocsIfCmtsStatusEntry ::= SEQUENCE {
docsIfCmtsStatusInvalidRangeReqs Counter32,
docsIfCmtsStatusRangingAborteds Counter32,
docsIfCmtsStatusInvalidRegReqs Counter32,
docsIfCmtsStatusFailedRegReqs Counter32,
docsIfCmtsStatusInvalidDataReqs Counter32,
docsIfCmtsStatusT5Timeouts Counter32
}
docsIfCmtsStatusInvalidRangeReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts invalid RNG-REQ messages received on
this interface."
REFERENCE
"Document [25] from References, Section 8.3.5."
::= { docsIfCmtsStatusEntry 1 }
docsIfCmtsStatusRangingAborteds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts ranging attempts that were explicitly
aborted by the CMTS."
REFERENCE
"Document [25] from References, Section 8.3.6."
::= { docsIfCmtsStatusEntry 2 }
docsIfCmtsStatusInvalidRegReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
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DESCRIPTION
"This object counts invalid REG-REQ messages received on
this interface."
REFERENCE
"Document [25] from References, Section 8.3.7."
::= { docsIfCmtsStatusEntry 3 }
docsIfCmtsStatusFailedRegReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts failed registration attempts, i.e.,
authentication failures and class of service failures,
on this interface."
REFERENCE
"Document [25] from References, Section 8.3.7."
::= { docsIfCmtsStatusEntry 4 }
docsIfCmtsStatusInvalidDataReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts invalid data request messages
received on this interface."
::= { docsIfCmtsStatusEntry 5 }
docsIfCmtsStatusT5Timeouts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of times counter T5
expired on this interface."
REFERENCE
"Document [25] from References, Figure 9-2."
::= { docsIfCmtsStatusEntry 6 }
--
-- CM status table (within CMTS).
-- This table is implemented only at the CMTS.
-- It contains per CM status information available in the CMTS.
--
docsIfCmtsCmStatusTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmtsCmStatusEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A set of objects in the CMTS, maintained for each
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Cable Modem connected to this CMTS."
::= { docsIfCmtsObjects 3 }
docsIfCmtsCmStatusEntry OBJECT-TYPE
SYNTAX DocsIfCmtsCmStatusEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Status information for a single Cable Modem.
An entry in this table exists for each Cable Modem
that is connected to the CMTS implementing this table."
INDEX { docsIfCmtsCmStatusIndex }
::= { docsIfCmtsCmStatusTable 1 }
DocsIfCmtsCmStatusEntry ::= SEQUENCE {
docsIfCmtsCmStatusIndex Integer32,
docsIfCmtsCmStatusMacAddress MacAddress,
docsIfCmtsCmStatusIpAddress IpAddress, -- Deprecated
docsIfCmtsCmStatusDownChannelIfIndex InterfaceIndexOrZero,
docsIfCmtsCmStatusUpChannelIfIndex InterfaceIndexOrZero,
docsIfCmtsCmStatusRxPower TenthdBmV,
docsIfCmtsCmStatusTimingOffset Unsigned32,
docsIfCmtsCmStatusEqualizationData OCTET STRING,
docsIfCmtsCmStatusValue INTEGER,
docsIfCmtsCmStatusUnerroreds Counter32,
docsIfCmtsCmStatusCorrecteds Counter32,
docsIfCmtsCmStatusUncorrectables Counter32,
docsIfCmtsCmStatusSignalNoise TenthdB,
docsIfCmtsCmStatusMicroreflections Integer32,
docsIfCmtsCmStatusExtUnerroreds Counter64,
docsIfCmtsCmStatusExtCorrecteds Counter64,
docsIfCmtsCmStatusExtUncorrectables Counter64,
docsIfCmtsCmStatusDocsisRegMode DocsisVersion,
docsIfCmtsCmStatusModulationType DocsisUpstreamType,
docsIfCmtsCmStatusInetAddressType InetAddressType,
docsIfCmtsCmStatusInetAddress InetAddress
}
docsIfCmtsCmStatusIndex OBJECT-TYPE
SYNTAX Integer32 (1..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Index value to uniquely identify an entry in this table.
For an individual Cable Modem, this index value should
not change during CMTS uptime."
::= { docsIfCmtsCmStatusEntry 1 }
docsIfCmtsCmStatusMacAddress OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
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DESCRIPTION
"MAC address of this Cable Modem. If the Cable Modem has
multiple MAC addresses, this is the MAC address associated
with the Cable interface."
REFERENCE
"Document [25] from References, Section 8.2.2."
::= { docsIfCmtsCmStatusEntry 2 }
docsIfCmtsCmStatusIpAddress OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS deprecated
DESCRIPTION
"IP address of this Cable Modem. If the Cable Modem has no
IP address assigned, or the IP address is unknown, this
object returns a value of 0.0.0.0. If the Cable Modem has
multiple IP addresses, this object returns the IP address
associated with the Cable interface.n
This object has been deprecated and replaced by
docsIfCmtsCmStatusInetAddressType and
docsIfCmtsCmStatusInetAddress, to enable IPv6 addressing
in the future."
::= { docsIfCmtsCmStatusEntry 3 }
docsIfCmtsCmStatusDownChannelIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"IfIndex of the downstream channel this CM is connected
to. If the downstream channel is unknown, this object
returns a value of zero."
::= { docsIfCmtsCmStatusEntry 4 }
docsIfCmtsCmStatusUpChannelIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"IfIndex of the upstream channel this CM is connected
to. If the upstream channel is unknown, this object
returns a value of zero."
::= { docsIfCmtsCmStatusEntry 5 }
docsIfCmtsCmStatusRxPower OBJECT-TYPE
SYNTAX TenthdBmV
UNITS "dBmV"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The receive power as perceived for upstream data from
this Cable Modem.
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If the receive power is unknown, this object returns
a value of zero."
REFERENCE
"Document [25] from References, Table 6-11."
::= { docsIfCmtsCmStatusEntry 6 }
docsIfCmtsCmStatusTimingOffset OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A measure of the current round trip time for this CM.
Used for timing of CM upstream transmissions to ensure
synchronized arrivals at the CMTS. Units are in terms
of 6.25 microseconds/(64*256). Returns zero if the value
is unknown."
REFERENCE
"Document [25] from References, Section 6.2.18."
::= { docsIfCmtsCmStatusEntry 7 }
docsIfCmtsCmStatusEqualizationData OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Equalization data for this CM. Returns an empty string
if the value is unknown or if there is no equalization
data available or defined."
REFERENCE
"Document [25] from References, Figure 8-23."
::= { docsIfCmtsCmStatusEntry 8 }
docsIfCmtsCmStatusValue OBJECT-TYPE
SYNTAX INTEGER {
other(1),
ranging(2),
rangingAborted(3),
rangingComplete(4),
ipComplete(5),
registrationComplete(6),
accessDenied(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Current Cable Modem connectivity state, as specified
in the RF Interface Specification. Returned status
information is the CM status as assumed by the CMTS,
and indicates the following events:
other(1)
Any state other than below.
ranging(2)
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The CMTS has received an Initial Ranging Request
message from the CM, and the ranging process is not
yet complete.
rangingAborted(3)
The CMTS has sent a Ranging Abort message to the CM.
rangingComplete(4)
The CMTS has sent a Ranging Complete message to the CM.
ipComplete(5)
The CMTS has received a DHCP reply message and forwarded
it to the CM.
registrationComplete(6)
The CMTS has sent a Registration Response message to
the CM.
accessDenied(7)
The CMTS has sent a Registration Aborted message
to the CM.
The CMTS only needs to report states it is able to detect."
REFERENCE
"Document [25] from References, Section 11.2."
::= { docsIfCmtsCmStatusEntry 9 }
docsIfCmtsCmStatusUnerroreds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Codewords received without error from this Cable Modem."
REFERENCE
"Document [25] from References, Section 6.2.5."
::= { docsIfCmtsCmStatusEntry 10 }
docsIfCmtsCmStatusCorrecteds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Codewords received with correctable errors from this
Cable Modem."
REFERENCE
"Document [25] from References, Section 6.2.5."
::= { docsIfCmtsCmStatusEntry 11 }
docsIfCmtsCmStatusUncorrectables OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Codewords received with uncorrectable errors from this
Cable Modem."
REFERENCE
"Document [25] from References, Section 6.2.5."
::= { docsIfCmtsCmStatusEntry 12 }
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docsIfCmtsCmStatusSignalNoise OBJECT-TYPE
SYNTAX TenthdB
UNITS "dB"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Signal/Noise ratio as perceived for upstream data from
this Cable Modem.
If the Signal/Noise is unknown, this object returns
a value of zero."
REFERENCE
"Document [25] from References, Tables 4-1 and 4-2."
::= { docsIfCmtsCmStatusEntry 13 }
docsIfCmtsCmStatusMicroreflections OBJECT-TYPE
SYNTAX Integer32 (0..255)
UNITS "dBc"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total microreflections including in-channel response
as perceived on this interface, measured in dBc below
the signal level.
This object is not assumed to return an absolutely
accurate value, but should give a rough indication
of microreflections received on this interface.
It is up to the implementer to provide information
as accurate as possible."
REFERENCE
"Document [25] from References, Tables 4-1 and 4-2"
::= { docsIfCmtsCmStatusEntry 14 }
docsIfCmtsCmStatusExtUnerroreds OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Codewords received without error from this Cable Modem."
REFERENCE
"Document [25] from References, Section 6.2.5."
::= { docsIfCmtsCmStatusEntry 15 }
docsIfCmtsCmStatusExtCorrecteds OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Codewords received with correctable errors from this
Cable Modem."
REFERENCE
"Document [25] from References, Section 6.2.5."
::= { docsIfCmtsCmStatusEntry 16 }
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docsIfCmtsCmStatusExtUncorrectables OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Codewords received with uncorrectable errors from this
Cable Modem."
REFERENCE
"Document [25] from References, Section 6.2.5."
::= { docsIfCmtsCmStatusEntry 17 }
docsIfCmtsCmStatusDocsisRegMode OBJECT-TYPE
SYNTAX DocsisVersion
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates in which DOCSIS version the CM has registered. This
object mirrors docsIfCmtsCmStatusDocsisMode from the docsIfExt mib."
REFERENCE
"Document [25] from References, Annex G."
::= { docsIfCmtsCmStatusEntry 18 }
docsIfCmtsCmStatusModulationType OBJECT-TYPE
SYNTAX DocsisUpstreamType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates modulation type currently used by the CM."
REFERENCE
"Document [25] from References, Table 8-19."
::= { docsIfCmtsCmStatusEntry 19 }
docsIfCmtsCmStatusInetAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of internet address of
docsIfCmtsCmStatusInetAddress. If the cable modem
Internet address is unassigned or unknown, then the
value of this object is unknown(0)."
::= { docsIfCmtsCmStatusEntry 20 }
docsIfCmtsCmStatusInetAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Internet address of this Cable Modem. If the Cable Modem
has no Internet address assigned, or the Internet address
is unknown, the value of this object is the empty string.
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If the Cable Modem has multiple Internet addresses, this
object returns the Internet address associated with the
Cable (i.e. RF MAC) interface."
::= { docsIfCmtsCmStatusEntry 21 }
--
-- The CMTS Service Table.
--
docsIfCmtsServiceTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmtsServiceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes the attributes of upstream service queues
in a Cable Modem Termination System."
::= { docsIfCmtsObjects 4 }
docsIfCmtsServiceEntry OBJECT-TYPE
SYNTAX DocsIfCmtsServiceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes the attributes of a single upstream bandwidth
service queue.
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Entries in this table exist for each ifEntry with an
ifType of docsCableMaclayer(127), and for each service
queue (Service ID) within this MAC layer.
Entries in this table are created with the creation of
individual Service IDs by the MAC layer and removed
when a Service ID is removed."
INDEX { ifIndex, docsIfCmtsServiceId }
::= { docsIfCmtsServiceTable 1 }
DocsIfCmtsServiceEntry ::= SEQUENCE {
docsIfCmtsServiceId Integer32,
docsIfCmtsServiceCmStatusIndex Integer32, -- Deprecated
docsIfCmtsServiceAdminStatus INTEGER,
docsIfCmtsServiceQosProfile Integer32,
docsIfCmtsServiceCreateTime TimeStamp,
docsIfCmtsServiceInOctets Counter32,
docsIfCmtsServiceInPackets Counter32,
docsIfCmtsServiceNewCmStatusIndex Integer32
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}
docsIfCmtsServiceId OBJECT-TYPE
SYNTAX Integer32 (1..16383)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Identifies a service queue for upstream bandwidth. The
attributes of this service queue are shared between the
Cable Modem and the Cable Modem Termination System.
The CMTS allocates upstream bandwidth to this service
queue based on requests from the CM and on the class of
service associated with this queue."
::= { docsIfCmtsServiceEntry 1 }
docsIfCmtsServiceCmStatusIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS deprecated
DESCRIPTION
"Pointer to an entry in docsIfCmtsCmStatusTable identifying
the Cable Modem using this Service Queue. If multiple
Cable Modems are using this Service Queue, the value of
this object is zero.
This object has been deprecated and replaced by
docsIfCmtsServiceNewCmStatusIndex, to fix a mismatch
of the value range with respect to docsIfCmtsCmStatusIndex
(1..2147483647)."
::= { docsIfCmtsServiceEntry 2 }
docsIfCmtsServiceAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled(1),
disabled(2),
destroyed(3) }
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Allows a service class for a particular modem to be
suppressed, (re-)enabled, or deleted altogether."
::= { docsIfCmtsServiceEntry 3 }
docsIfCmtsServiceQosProfile OBJECT-TYPE
SYNTAX Integer32 (0..16383)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The index in docsIfQosProfileTable describing the quality
of service attributes associated with this particular
service. If no associated docsIfQosProfileTable entry
exists, this object returns a value of zero."
::= { docsIfCmtsServiceEntry 4 }
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docsIfCmtsServiceCreateTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime when this entry was created."
::= { docsIfCmtsServiceEntry 5 }
docsIfCmtsServiceInOctets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The cumulative number of Packet Data octets received
on this Service ID. The count does not include the
size of the Cable MAC header"
::= { docsIfCmtsServiceEntry 6 }
docsIfCmtsServiceInPackets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The cumulative number of Packet Data packets received
on this Service ID."
::= { docsIfCmtsServiceEntry 7 }
docsIfCmtsServiceNewCmStatusIndex OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Pointer (via docsIfCmtsCmStatusIndex) to an entry in
docsIfCmtsCmStatusTable identifying the Cable Modem
using this Service Queue. If multiple Cable Modems are
using this Service Queue, the value of this object is
zero."
::= { docsIfCmtsServiceEntry 8 }
--
-- The following table provides upstream channel modulation profiles.
-- Entries in this table can be
-- re-used by one or more upstream channels. An upstream channel will
-- have a modulation profile
-- for each value of docsIfModIntervalUsageCode.
--
docsIfCmtsModulationTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmtsModulationEntry
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MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes a modulation profile associated with one or more
upstream channels."
::= { docsIfCmtsObjects 5 }
docsIfCmtsModulationEntry OBJECT-TYPE
SYNTAX DocsIfCmtsModulationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Describes a modulation profile for an Interval Usage Code
for one or more upstream channels.
Entries in this table are created by the operator. Initial
default entries may be created at system initialization
time. No individual objects have to be specified in order
to create an entry in this table.
Note that some objects do not have DEFVALs, but do have
calculated defaults and need not be specified during row
creation.
There is no restriction on the changing of values in this
table while their associated rows are active."
INDEX { docsIfCmtsModIndex, docsIfCmtsModIntervalUsageCode}
::= { docsIfCmtsModulationTable 1 }
DocsIfCmtsModulationEntry ::= SEQUENCE {
docsIfCmtsModIndex Integer32,
docsIfCmtsModIntervalUsageCode INTEGER,
docsIfCmtsModControl RowStatus,
docsIfCmtsModType INTEGER,
docsIfCmtsModPreambleLen Integer32,
docsIfCmtsModDifferentialEncoding TruthValue,
docsIfCmtsModFECErrorCorrection Integer32,
docsIfCmtsModFECCodewordLength Integer32,
docsIfCmtsModScramblerSeed Integer32,
docsIfCmtsModMaxBurstSize Integer32,
docsIfCmtsModGuardTimeSize Unsigned32,
docsIfCmtsModLastCodewordShortened TruthValue,
docsIfCmtsModScrambler TruthValue,
docsIfCmtsModByteInterleaverDepth Unsigned32,
docsIfCmtsModByteInterleaverBlockSize Unsigned32,
docsIfCmtsModPreambleType INTEGER,
docsIfCmtsModTcmErrorCorrectionOn TruthValue,
docsIfCmtsModScdmaInterleaverStepSize Unsigned32,
docsIfCmtsModScdmaSpreaderEnable TruthValue,
docsIfCmtsModScdmaSubframeCodes Unsigned32,
docsIfCmtsModChannelType DocsisUpstreamType
}
docsIfCmtsModIndex OBJECT-TYPE
SYNTAX Integer32 (1..2147483647)
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MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An index into the Channel Modulation table representing
a group of Interval Usage Codes, all associated with the
same channel."
::= { docsIfCmtsModulationEntry 1 }
docsIfCmtsModIntervalUsageCode OBJECT-TYPE
SYNTAX INTEGER {
request(1),
requestData(2),
initialRanging(3),
periodicRanging(4),
shortData(5),
longData(6),
advPhyShortData(9),
advPhyLongData(10),
ugs(11)
}
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An index into the Channel Modulation table which, when
grouped with other Interval Usage Codes, fully
instantiate all modulation sets for a given upstream
channel."
REFERENCE
"Document [25] from References, Table 8-20."
::= { docsIfCmtsModulationEntry 2 }
docsIfCmtsModControl OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Controls and reflects the status of rows in this table."
::= { docsIfCmtsModulationEntry 3 }
docsIfCmtsModType OBJECT-TYPE
SYNTAX INTEGER {
other(1),
qpsk(2),
qam16(3),
qam8(4),
qam32(5),
qam64(6),
qam128(7)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
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"The modulation type used on this channel. Returns
other(1) if the modulation type is neither
qpsk, qam16, qam8, qam32, qam64 or qam128.
Type qam128 is used for SCDMA channels only.
See the reference for the modulation profiles
implied by different modulation types.
See the conformance object for write conditions and limitations."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { qpsk }
::= { docsIfCmtsModulationEntry 4 }
docsIfCmtsModPreambleLen OBJECT-TYPE
SYNTAX Integer32 (0..1536)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The preamble length for this modulation profile in bits.
Default value is the minimum needed by the implementation
at the CMTS for the given modulation profile."
REFERENCE
"Document [25] from References, Table 8-19."
::= { docsIfCmtsModulationEntry 5 }
docsIfCmtsModDifferentialEncoding OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies whether or not differential encoding is used
on this channel."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { false }
::= { docsIfCmtsModulationEntry 6 }
docsIfCmtsModFECErrorCorrection OBJECT-TYPE
SYNTAX Integer32 (0..16)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of correctable errored bytes (t) used in
forward error correction code. The value of 0 indicates
no correction is employed. The number of check bytes
appended will be twice this value."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { 0 }
::= { docsIfCmtsModulationEntry 7 }
docsIfCmtsModFECCodewordLength OBJECT-TYPE
SYNTAX Integer32 (1..255)
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MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of data bytes (k) in the forward error
correction codeword.
This object is not used if docsIfCmtsModFECErrorCorrection
is zero."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { 32 }
::= { docsIfCmtsModulationEntry 8 }
docsIfCmtsModScramblerSeed OBJECT-TYPE
SYNTAX Integer32 (0..32767)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The 15 bit seed value for the scrambler polynomial."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { 0 }
::= { docsIfCmtsModulationEntry 9 }
docsIfCmtsModMaxBurstSize OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum number of mini-slots that can be transmitted
during this channel's burst time. Returns zero if the
burst length is bounded by the allocation MAP rather than
this profile.
Default value is 0 except for shortData, where it is 8."
REFERENCE
"Document [25] from References, Table 8-19."
::= { docsIfCmtsModulationEntry 10 }
docsIfCmtsModGuardTimeSize OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of symbol-times which must follow the end of
this channel's burst. Default value is the minimum time
needed by the implementation for this modulation profile."
REFERENCE
"Document [25] from References, Table 8-19."
::= { docsIfCmtsModulationEntry 11 }
docsIfCmtsModLastCodewordShortened OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
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STATUS current
DESCRIPTION
"Indicates if the last FEC codeword is truncated."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { true }
::= { docsIfCmtsModulationEntry 12 }
docsIfCmtsModScrambler OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates if the scrambler is employed."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { false }
::= { docsIfCmtsModulationEntry 13 }
docsIfCmtsModByteInterleaverDepth OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" ATDMA Byte Interleaver Depth (Ir). This object returns 1 for
non ATDMA profiles. "
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { 1 }
::= { docsIfCmtsModulationEntry 14 }
docsIfCmtsModByteInterleaverBlockSize OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" ATDMA Byte Interleaver Block size (Br). This object returns
zero for non ATDMA profiles "
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { 18 }
::= { docsIfCmtsModulationEntry 15 }
docsIfCmtsModPreambleType OBJECT-TYPE
SYNTAX INTEGER {
qpsk0(1),
qpsk1(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Preamble type for DOCSIS 2.0 bursts"
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REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { qpsk0 }
::= { docsIfCmtsModulationEntry 16 }
docsIfCmtsModTcmErrorCorrectionOn OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" Trellis Code Modulation (TCM) On/Off. This value returns false for
non S-CDMA profiles."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { false }
::= { docsIfCmtsModulationEntry 17 }
docsIfCmtsModScdmaInterleaverStepSize OBJECT-TYPE
SYNTAX Unsigned32 (0 | 1..32)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" S-CDMA Interleaver step size. This value returns zero
for non S-CDMA profiles."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { 1 }
::= { docsIfCmtsModulationEntry 18 }
docsIfCmtsModScdmaSpreaderEnable OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" S-CDMA spreader. This value returns false for non S-CDMA
profiles. Default value for IUC 3 and 4 is OFF, for
all other IUCs it is ON."
REFERENCE
"Document [25] from References, Table 8-19."
::= { docsIfCmtsModulationEntry 19 }
docsIfCmtsModScdmaSubframeCodes OBJECT-TYPE
SYNTAX Unsigned32 (0 | 1..128)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" S-CDMA sub-frame size. This value returns zero
for non S-CDMA profiles."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { 1 }
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::= { docsIfCmtsModulationEntry 20 }
docsIfCmtsModChannelType OBJECT-TYPE
SYNTAX DocsisUpstreamType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Describes the modulation channel type for this modulation entry."
REFERENCE
"Document [25] from References, Table 8-19."
DEFVAL { tdma }
::= { docsIfCmtsModulationEntry 21 }
docsIfCmtsQosProfilePermissions OBJECT-TYPE
SYNTAX BITS {
createByManagement(0),
updateByManagement(1),
createByModems(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies permitted methods of creating
entries in docsIfQosProfileTable.
CreateByManagement(0) is set if entries can be created
using SNMP. UpdateByManagement(1) is set if updating
entries using SNMP is permitted. CreateByModems(2)
is set if entries can be created based on information
in REG-REQ MAC messages received from Cable Modems.
Information in this object is only applicable if
docsIfQosProfileTable is implemented as read-create.
Otherwise, this object is implemented as read-only
and returns CreateByModems(2).
Either CreateByManagement(0) or CreateByModems(1)
must be set when writing to this object.
Note that BITS objects are encoded most significant bit
first. For example, if bit 2 is set, the value of this
object is the octet string '20'H."
::= { docsIfCmtsObjects 6 }
docsIfCmtsMacToCmTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmtsMacToCmEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This is a table to provide a quick access index into the
docsIfCmtsCmStatusTable. There is exactly one row in this
table for each row in the docsIfCmtsCmStatusTable. In
general, the management station should use this table only
to get a pointer into the docsIfCmtsCmStatusTable (which
corresponds to the CM's RF interface MAC address), and
should not iterate (e.g. GetNext through) this table."
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::= { docsIfCmtsObjects 7 }
docsIfCmtsMacToCmEntry OBJECT-TYPE
SYNTAX DocsIfCmtsMacToCmEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row in the docsIfCmtsMacToCmTable.
An entry in this table exists for each Cable Modem
that is connected to the CMTS implementing this table."
INDEX { docsIfCmtsCmMac }
::= {docsIfCmtsMacToCmTable 1 }
DocsIfCmtsMacToCmEntry ::= SEQUENCE {
docsIfCmtsCmMac MacAddress,
docsIfCmtsCmPtr Integer32
}
docsIfCmtsCmMac OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The RF side MAC address for the referenced CM. (E.g. the
interface on the CM that has docsCableMacLayer(127) as
its ifType."
::= { docsIfCmtsMacToCmEntry 1 }
docsIfCmtsCmPtr OBJECT-TYPE
SYNTAX Integer32 (1..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An row index into docsIfCmtsCmStatusTable. When queried
with the correct instance value (e.g. a CM's MAC address),
returns the index in docsIfCmtsCmStatusTable which
represents that CM."
::= { docsIfCmtsMacToCmEntry 2 }
--
-- notification group is for future extension.
--
docsIfNotification OBJECT IDENTIFIER ::= { docsIfMib 2 }
docsIfConformance OBJECT IDENTIFIER ::= { docsIfMib 3 }
docsIfCompliances OBJECT IDENTIFIER ::= { docsIfConformance 1 }
docsIfGroups OBJECT IDENTIFIER ::= { docsIfConformance 2 }
-- compliance statements
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docsIfBasicCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for devices that implement
MCNS/DOCSIS compliant Radio Frequency Interfaces."
MODULE -- docsIfMib
-- unconditionally mandatory groups
MANDATORY-GROUPS {
docsIfBasicGroup
}
-- conditionally mandatory group
GROUP docsIfCmGroup
DESCRIPTION
"This group is implemented only in Cable Modems, not in
Cable Modem Termination Systems."
-- conditionally mandatory group
GROUP docsIfCmtsGroup
DESCRIPTION
"This group is implemented only in Cable Modem Termination
Systems, not in Cable Modems."
OBJECT docsIfDownChannelFrequency
WRITE-SYNTAX Integer32 (47000000..862000000)
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems.
A range of 54MHz to 860MHz is appropriate for a cable
plant using a North American Sub-Split channel plan.
The spectrum range has been expanded to accommodate
a lower edge of 47MHz and an upper edge of 862MHz
for some European channel plans.
If DOCSIS is extended to cover other types of channel
plans (and frequency allocations) this object will be
modified accordingly."
OBJECT docsIfDownChannelWidth
WRITE-SYNTAX Integer32 (6000000 | 8000000)
MIN-ACCESS read-only
DESCRIPTION
"It is conformant to implement this object as read-only.
In Cable Modems, this object is always implemented as
read-only. The value of 6 MHz is appropriate for cable
plants running under NTSC (National Television
Standards Committee) standards. The value of 8 MHz is
appropriate for cable plants running under ETSI
standards. For other regional standards, this
object will be modified accordingly."
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OBJECT docsIfDownChannelModulation
WRITE-SYNTAX INTEGER {
qam64 (3),
qam256 (4)
}
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfDownChannelInterleave
WRITE-SYNTAX INTEGER {
taps8Increment16(3),
taps16Increment8(4),
taps32Increment4(5),
taps64Increment2(6),
taps128Increment1(7),
taps12increment17(8)
}
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfDownChannelPower
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelFrequency
WRITE-SYNTAX Integer32 (5000000..65000000)
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems.
A range of 5MHz to 42MHz is appropriate for a cable
plant using a North American Sub-Split channel plan.
The spectrum range has been expanded to accommodate
an upper edge of 65MHz for some European channel plans.
If DOCSIS is extended to cover other types of channel
plans (and frequency allocations) this object will
be modified accordingly."
OBJECT docsIfUpChannelWidth
WRITE-SYNTAX Integer32 (200000..3200000)
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems. The above value is appropriate
for cable plants running under NTSC (National Television
Standards Committee) standards. If DOCSIS is extended to
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work with other standard (e.g. European standards), this
object will be modified accordingly."
OBJECT docsIfUpChannelModulationProfile
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelSlotSize
MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems.
It is compliant to implement this object as read-only
in Cable Modem Termination Systems."
OBJECT docsIfUpChannelRangingBackoffStart
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelRangingBackoffEnd
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelTxBackoffStart
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelTxBackoffEnd
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelScdmaActiveCodes
MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems."
OBJECT docsIfUpChannelScdmaCodesPerSlot
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelScdmaFrameSize
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MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelScdmaHoppingSeed
MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems."
OBJECT docsIfUpChannelType
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfQosProfPriority
MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems.
It is compliant to implement this object as read-only
in Cable Modem Termination Systems."
OBJECT docsIfQosProfMaxUpBandwidth
MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems.
It is compliant to implement this object as read-only
in Cable Modem Termination Systems."
OBJECT docsIfQosProfGuarUpBandwidth
MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems.
It is compliant to implement this object as read-only
in Cable Modem Termination Systems."
OBJECT docsIfQosProfMaxDownBandwidth
MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems.
It is compliant to implement this object as read-only
in Cable Modem Termination Systems."
OBJECT docsIfQosProfBaselinePrivacy
MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems.
It is compliant to implement this object as read-only
in Cable Modem Termination Systems."
OBJECT docsIfQosProfStatus
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MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems.
It is compliant to implement this object as read-only
in Cable Modem Termination Systems."
OBJECT docsIfQosProfMaxTransmitBurst
MIN-ACCESS read-only
DESCRIPTION
"This object is always read-only in Cable Modems.
It is compliant to implement this object as read-only
in Cable Modem Termination Systems."
OBJECT docsIfCmtsServiceAdminStatus
MIN-ACCESS read-only
DESCRIPTION
"It is compliant to implement this object as read-only."
OBJECT docsIfCmtsSyncInterval
MIN-ACCESS read-only
DESCRIPTION
"It is compliant to implement this object as read-only."
OBJECT docsIfCmtsUcdInterval
MIN-ACCESS read-only
DESCRIPTION
"It is compliant to implement this object as read-only."
OBJECT docsIfCmtsInsertInterval
MIN-ACCESS read-only
DESCRIPTION
"It is compliant to implement this object as read-only."
OBJECT docsIfCmtsInvitedRangingAttempts
MIN-ACCESS read-only
DESCRIPTION
"It is compliant to implement this object as read-only."
OBJECT docsIfCmtsQosProfilePermissions
MIN-ACCESS read-only
DESCRIPTION
"It is compliant to implement this object as read-only."
::= { docsIfCompliances 1 }
docsIfBasicGroup OBJECT-GROUP
OBJECTS {
docsIfDownChannelId,
docsIfDownChannelFrequency,
docsIfDownChannelWidth,
docsIfDownChannelModulation,
docsIfDownChannelInterleave,
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docsIfDownChannelPower,
docsIfDownChannelAnnex,
docsIfUpChannelId,
docsIfUpChannelFrequency,
docsIfUpChannelWidth,
docsIfUpChannelModulationProfile,
docsIfUpChannelSlotSize,
docsIfUpChannelTxTimingOffset,
docsIfUpChannelRangingBackoffStart,
docsIfUpChannelRangingBackoffEnd,
docsIfUpChannelTxBackoffStart,
docsIfUpChannelTxBackoffEnd,
docsIfUpChannelScdmaActiveCodes,
docsIfUpChannelScdmaCodesPerSlot,
docsIfUpChannelScdmaFrameSize,
docsIfUpChannelScdmaHoppingSeed,
docsIfUpChannelType,
docsIfQosProfPriority,
docsIfQosProfMaxUpBandwidth,
docsIfQosProfGuarUpBandwidth,
docsIfQosProfMaxDownBandwidth,
docsIfQosProfBaselinePrivacy,
docsIfQosProfStatus,
docsIfQosProfMaxTransmitBurst,
docsIfSigQIncludesContention,
docsIfSigQUnerroreds,
docsIfSigQCorrecteds,
docsIfSigQUncorrectables,
docsIfSigQSignalNoise,
docsIfSigQMicroreflections,
docsIfSigQEqualizationData,
docsIfDocsisBaseCapability
}
STATUS current
DESCRIPTION
"Group of objects implemented in both Cable Modems and
Cable Modem Termination Systems."
::= { docsIfGroups 1 }
docsIfCmGroup OBJECT-GROUP
OBJECTS {
docsIfCmCmtsAddress,
docsIfCmCapabilities,
docsIfCmRangingTimeout,
-- docsIfCmRangingRespTimeout,
docsIfCmStatusValue,
docsIfCmStatusCode,
docsIfCmStatusTxPower,
docsIfCmStatusResets,
docsIfCmStatusLostSyncs,
docsIfCmStatusInvalidMaps,
docsIfCmStatusInvalidUcds,
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docsIfCmStatusInvalidRangingResponses,
docsIfCmStatusInvalidRegistrationResponses,
docsIfCmStatusT1Timeouts,
docsIfCmStatusT2Timeouts,
docsIfCmStatusT3Timeouts,
docsIfCmStatusT4Timeouts,
docsIfCmStatusRangingAborteds,
docsIfCmStatusDocsisOperMode,
docsIfCmStatusModulationType,
docsIfCmServiceQosProfile,
docsIfCmServiceTxSlotsImmed,
docsIfCmServiceTxSlotsDed,
docsIfCmServiceTxRetries,
docsIfCmServiceTxExceededs,
docsIfCmServiceRqRetries,
docsIfCmServiceRqExceededs,
docsIfCmServiceExtTxSlotsImmed,
docsIfCmServiceExtTxSlotsDed
}
STATUS current
DESCRIPTION
"Group of objects implemented in Cable Modems."
::= { docsIfGroups 2 }
docsIfCmtsGroup OBJECT-GROUP
OBJECTS {
docsIfCmtsCapabilities,
docsIfCmtsSyncInterval,
docsIfCmtsUcdInterval,
docsIfCmtsMaxServiceIds,
-- docsIfCmtsInsertionInterval,
docsIfCmtsInvitedRangingAttempts,
docsIfCmtsInsertInterval,
docsIfCmtsStatusInvalidRangeReqs,
docsIfCmtsStatusRangingAborteds,
docsIfCmtsStatusInvalidRegReqs,
docsIfCmtsStatusFailedRegReqs,
docsIfCmtsStatusInvalidDataReqs,
docsIfCmtsStatusT5Timeouts,
docsIfCmtsCmStatusMacAddress,
docsIfCmtsCmStatusDownChannelIfIndex,
docsIfCmtsCmStatusUpChannelIfIndex,
docsIfCmtsCmStatusRxPower,
docsIfCmtsCmStatusTimingOffset,
docsIfCmtsCmStatusEqualizationData,
docsIfCmtsCmStatusValue,
docsIfCmtsCmStatusUnerroreds,
docsIfCmtsCmStatusCorrecteds,
docsIfCmtsCmStatusUncorrectables,
docsIfCmtsCmStatusSignalNoise,
docsIfCmtsCmStatusMicroreflections,
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docsIfCmtsCmStatusExtUnerroreds,
docsIfCmtsCmStatusExtCorrecteds,
docsIfCmtsCmStatusExtUncorrectables,
docsIfCmtsCmStatusDocsisRegMode,
docsIfCmtsCmStatusModulationType,
docsIfCmtsCmStatusInetAddressType,
docsIfCmtsCmStatusInetAddress,
docsIfCmtsServiceAdminStatus,
docsIfCmtsServiceQosProfile,
docsIfCmtsServiceCreateTime,
docsIfCmtsServiceInOctets,
docsIfCmtsServiceInPackets,
docsIfCmtsServiceNewCmStatusIndex,
docsIfCmtsModType,
docsIfCmtsModControl,
docsIfCmtsModPreambleLen,
docsIfCmtsModDifferentialEncoding,
docsIfCmtsModFECErrorCorrection,
docsIfCmtsModFECCodewordLength,
docsIfCmtsModScramblerSeed,
docsIfCmtsModMaxBurstSize,
docsIfCmtsModGuardTimeSize,
docsIfCmtsModLastCodewordShortened,
docsIfCmtsModScrambler,
docsIfCmtsModByteInterleaverDepth,
docsIfCmtsModByteInterleaverBlockSize,
docsIfCmtsModPreambleType,
docsIfCmtsModTcmErrorCorrectionOn,
docsIfCmtsModScdmaInterleaverStepSize,
docsIfCmtsModScdmaSpreaderEnable,
docsIfCmtsModScdmaSubframeCodes,
docsIfCmtsModChannelType,
docsIfCmtsQosProfilePermissions,
docsIfCmtsCmPtr
}
STATUS current
DESCRIPTION
"Group of objects implemented in Cable Modem Termination
Systems."
::= { docsIfGroups 3 }
docsIfObsoleteGroup OBJECT-GROUP
OBJECTS {
docsIfCmRangingRespTimeout,
docsIfCmtsInsertionInterval
}
STATUS obsolete
DESCRIPTION
"Group of objects obsoleted."
::= { docsIfGroups 4 }
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docsIfDeprecatedGroup OBJECT-GROUP
OBJECTS {
docsIfQosProfMaxTxBurst,
docsIfCmtsCmStatusIpAddress,
docsIfCmtsServiceCmStatusIndex
}
STATUS deprecated
DESCRIPTION
"Group of objects deprecated."
::= { docsIfGroups 5 }
END
5. Acknowledgments
This document is a production of the Docsis 2.0 OSS Working Group.
It is a revision based on RFC2670, "Radio Frequency (RF) Interface
Management Information Base for DOCSIS compliant RF interfaces" [22].
The current editors wish to express gratitude to Rich Prodan, Greg
Nakanishi, Rich Woundy, Eduardo Cardona, and Adi Shaliv for their
valued advice and opinions.
6. Revision History
6.1. Scope
This MIB in this document has been developed to accommodate DOCSIS 2.0 devices
and their system capabilities. The MIB is an update to RFC2670 with the
additional incorporation of EuroDocsis specific items and the DOCS_IF_EXT mib.
6.2. Extension
We have maintained the MIB objects as defined in RFC 2670. In some cases new mib
objects have been created with identical functionality but greater capacity (ie
32 to 64 bits). In these situations, both the original 32 bit objects and the new
64 bit objects must be implemented.
7. References
[1] Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for
Describing SNMP Management Frameworks", RFC 2571, April 1999.
[2] Rose, M. and K. McCloghrie, "Structure and Identification of
Management Information for TCP/IP-based Internets", STD 16, RFC
1155, May 1990.
[3] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16,
RFC 1212, March 1991.
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[4] Rose, M., "A Convention for Defining Traps for use with the
SNMP", RFC 1215, March 1991.
[5] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Structure of
Management Information for Version 2 (SMIv2)", STD 58, RFC 2578,
April 1999.
[6] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Textual
Conventions for SMIv2", STD 58, RFC 2579, April 1999.
[7] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Conformance
Statements for SMIv2", STD 58, RFC 2580, April 1999.
[8] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple
Management Protocol", STD 15, RFC 1157, May 1990.
[9] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
"Introduction to Community-based SNMPv2", RFC 1901, January
1996.
[10] 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.
[11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message
Processing and Dispatching for the Simple Network Management
Protocol (SNMP)", RFC 2572, April 1999.
[12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)
for version 3 of the Simple Network Management Protocol
(SNMPv3)", RFC 2574, April 1999.
[13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol
Operations for Version 2 of the Simple Network Management
Protocol (SNMPv2)", RFC 1905, January 1996.
[14] Levi, D., Meyer, P. and B. Stewart, "SNMP Applications", RFC
2573, April 1999.
[15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access
Control Model (VACM) for the Simple Network Management Protocol
(SNMP)", RFC 2575, April 1999.
[16] "Data-Over-Cable Service Interface Specifications: Cable
Modem Radio Frequency Interface Specification SP-RFI-I05-991105",
DOCSIS, November 1999, http://www.cablemodem.com/.
[17] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB
using SMIv2", RFC 2863, June 2000.
[18] StJohns, M. , "Cable Device Management Information Base for
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DOCSIS Compliant Cable Modems and Cable Modem Termination
Systems", RFC2669, August 1999.
[19] Proakis, John G., "Digital Communications, 3rd Edition",
McGraw-Hill, New York, New York, 1995, ISBN 0-07-051726-6
[20] "Transmission Systems for Interactive Cable Television Services,
Annex B", J.112, International Telecommunications Union, March
1998.
[21] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction to Version 3 of the Internet-standard Network Management
Framework", RFC 2570, April 1999.
[22] StJohns, M., "Radio Frequency (RF) Interface Management
Information Base for MCNS/DOCSIS compliant RF interfaces",
RFC 2670, August 1999.
[23] "Data-Over-Cable Service Interface Specifications: Cable
Modem Radio Frequency Interface Specification SP-RFIv1.1-I06-
001215", DOCSIS, December 2000, http://www.cablemodem.com/.
[24] "Document for the certification of EuroDOCSIS CMs and CMTSs,
Version 3.3", EuroDOCSIS, February 2000.
[25] "Data-Over-Cable Service Interface Specifications: Radio Frequency
Interface Specification SP-RFIv2.0-W04-011119", DOCSIS 2.0
November 2001.
[26] "Data-Over-Cable Service Interface Specifications: Operations
Support System Interface Specification SP-OSSIv2.0-W01-011119",
DOCSIS 2.0 November 2001.
[27] Woundy, R., "Baseline Privacy Interface Management
Information Base for DOCSIS Compliant Cable Modems
and Cable Modem Termination Systems", RFC3083, March 2001.
[28] "Adapted MIB-definitions and a clarification for MPEG-related
issues for EuroDOCSIS cable modem systems v1.01", tComLabs,
May 2000.
8. Security Considerations
This MIB relates to a system which will provide metropolitan public
internet access. As such, improper manipulation of the objects
represented by this MIB may result in denial of service to a large
number of end-users. In addition, manipulation of the
docsIfCmServiceQosProfile, docsIfCmtsServerQosProfile, and the
elements of docsIfQosProfileTable and docsIfCmtsModulationTable may
allow an end-user to improve their service response or diminish other
subscriber's service response.
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There are a number of management objects defined in this MIB that
have 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.
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 RFC 2574 [12] and the View- based
Access Control Model RFC 2575 [15] 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.
9. Changes from RFC2670
Upstream now separated into 'physical interfaces' and 'logical channels'. An
instance of the docsIfUpstreamChannelTable exists for each 'logical channel'.
The IANA ifType for 'logical channels' is 205. The IANA ifType for 'physical
interfaces' remains at 129.
Object docsIfDownChannelAnnex added to docsIfDownstreamChannelTable. This object
originated in the EuroDocsis specifications.
Five new objects added to the docsIfUpstreamChannelTable. One describes the
channel type in use, while four are specific S-CDMA parameters.
Object docsIfQosProfMaxTransmitBurst has been added to the docsIfQosProfileTable
to replace deprecated object docsIfQosProfMaxTxBurst. This fixes a range error
caused by switch to recording as bytes instead of minislots.
A new base object docsIfDocsisBaseCapability has been added which mirrors the
functionality of the docsifExt mib object docsIfDocsisCapability, extended to
include Docsis 2.0.
Two new objects added to the docsIfCmStatusTable. One indicates the current
modulation type, while the other mirrors the functionality of the docsIfExt
object docsIfDocsisOperMode.
Two new 64 bit counters added to the docsIfCmServiceTable to extend the capacity
of existing 32 bit counters.
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Seven new objects added to the docsIfCmtsCmStatusTable. Three are 64 bit
counters, two add ipv6 capability, one mirrors a docsIfExt object (extended to
include Docsis 2.0), and one indicates the CM modulation type in use.
One object added to the docsIfCmtsServiceTable to fix a range error in an
existing object, that has been deprecated.
Eight new objects added to the docsIfCmtsModulationTable. Seven of these
describe ATDMA/S-CDMA channel parameters, while the other describes modulation
attributes common to all modulation types.
Enumerated values for object docsIfDownChannelInterleave have been expanded to
include a EuroDocsis value.
Enumerated values for object docsIfCmtsModIntervalUsageCode have been expanded
to include new Docsis 2.0 values.
Enumerated values for object docsIfCmtsModType have been expanded to include new
Docsis 2.0 values.
Compliance statements have been updated to reflect new objects and to describe
EuroDocsis specific implementation features.
10. 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 implementers 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 that may cover technology that may be required to practice
this standard. Please address the information to the IETF Executive
Director.
11. Authors' Addresses
Aviv Goren
Terayon
2952 Bunker Hill Lane
Santa Clara, CA
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Internet Draft DOCSIS RF Interface MIB November 2001
U.S.A.
Phone: +1 408 727 4400
E-mail: aviv.goren@terayon.com
David Raftus
Imedia Semiconductor
340 Terry Fox Drive, Suite 202
Ottawa Ontario
Canada
Phone: +1 613 592 1052
E-mail: david.raftus@imedia.com
12. Full Copyright Statement
Copyright (C) The Internet Society (2001). 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.
Acknowledgement
Funding for the RFC Editor function is currently provided by the
Internet Society.
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