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INTERNET-DRAFT MCNS RF Interface MIB July 1997
Radio Frequency (RF) Interface Management Information Base
for MCNS compliant RF interfaces
draft-ietf-ipcdn-rf-interface-mib-00.txt
Mon Jul 7 10:32:21 PDT 1997
Guenter Roeck (editor)
cisco Systems
groeck@cisco.com
Status of this Memo
This document is an Internet-Draft. 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 a "work in progress".
To view the entire list of current Internet-Drafts, please check the
"1id-abstracts.txt" listing contained in the Internet-Drafts Shadow
Directories on ftp.is.co.za (Africa), ftp.nordu.net (Europe),
munnari.oz.au (Pacific Rim), ds.internic.net (US East Coast), or
ftp.isi.edu (US West Coast).
Abstract
This memo defines an experimental 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 MCNS compliant Radio Frequency (RF) interfaces.
This memo specifies a MIB module in a manner that is compliant to the
SNMPv2 SMI. The set of objects is consistent with the SNMP framework
and existing SNMP standards.
This memo does not specify a standard for the Internet community.
This memo is a product of the IPCDN working group within the Internet
Engineering Task Force. Comments are solicited and should be addressed
to the working group's mailing list at ipcdn@terayon.com and/or the
author.
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Table of Contents
1 The SNMPv2 Network Management Framework ......................... 3
2 Object Definitions .............................................. 3
3 Overview ........................................................ 4
3.1 Structure of the MIB .......................................... 4
3.1.1 General Description ......................................... 4
3.2 Relationship to the Interfaces MIB ............................ 4
3.2.1 Layering Model .............................................. 4
3.2.2 ifTestTable ................................................. 5
3.2.3 ifRcvAddressTable ........................................... 5
3.2.4 ifEntry ..................................................... 5
3.2.4.1 ifEntry for Downstream interfaces ......................... 5
3.2.4.2 ifEntry for Upstream interfaces ........................... 7
3.2.4.3 ifEntry for the MAC Layer ................................. 9
4 Definitions ..................................................... 11
5 Acknowledgments ................................................. 46
6 References ...................................................... 46
7 Security Considerations ......................................... 46
8 Author's Address ................................................ 47
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1. The SNMPv2 Network Management Framework
The SNMPv2 Network Management Framework presently consists of three
major components. They are:
o the SMI, described in RFC 1902 [1] - the mechanisms used for
describing and naming objects for the purpose of management.
o the MIB-II, STD 17, RFC 1213 [2] - the core set of managed objects
for the Internet suite of protocols.
o the protocol, RFC 1157 [3] and/or RFC 1905 [4], - the protocol for
accessing managed objects.
The Framework permits new objects to be defined for the purpose of
experimentation and evaluation.
2. Object Definitions
Managed objects are accessed via a virtual information store, termed the
Management Information Base or MIB. Objects in the MIB are defined
using the subset of Abstract Syntax Notation One (ASN.1) defined in the
SMI. In particular, each object type is named by an OBJECT IDENTIFIER,
an administratively assigned name. The object type together with an
object instance serves to uniquely identify a specific instantiation of
the object. For human convenience, we often use a textual string,
termed the descriptor, to refer to the object type.
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3. Overview
This MIB provides a set of objects required for the management of MCNS
compliant Cable Modem (CM) and Cable Modem Termination System (CMTS) RF
interfaces. The specification is derived from the MCNS Radio Frequency
Interface specification [6].
3.1. Structure of the MIB
This MIB is structured in three groups:
o Information required both in Cable Modems and Cable Modem
Termination systems.
o Information required in Cable Modems only.
o Information required in Cable Modem Termination Systems only.
3.1.1. General Description
3.2. Relationship to the Interfaces MIB
This section clarifies the relationship of this MIB to the Interfaces
MIB [5]. Several areas of correlation are addressed in the following
subsections. The implementor 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, and for each RF MAC layer. The ifStackTable [5]
must be implemented to identify relationships among sub-interfaces.
The following example illustrates a MAC interface with one downstream
and two upstream channels.
| <== to network layer
+-------------+--------------+
| RF MAC |
+----+---------+-----------+-+
| | |
+---------+---+ +---+-------+ +-+---------+
| Downstream1 | | Upstream1 | | Upstream2 |
+-------------+ +-----------+ +-----------+
As can be seen from this example, the RF MAC interface is layered on top
of the downstream and upstream interfaces.
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In this example, the assignment of index values could be as follows:
ifIndex ifType Description
1 docsCableMaclayer(xx) CATV MAC Layer
2 docsCableDownstream(xx) CATV Downstream interface
3 docsCableUpstream(xx) CATV Upstream interface
4 docsCableUpstream(xx) CATV Upstream interface
The corresponding ifStack entries would then be:
| IfStackHigherLayer | ifStackLowerLayer |
| 0 | 1 |
| 1 | 2 |
| 1 | 3 |
| 1 | 4 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
3.2.2. ifTestTable
The ifTestTable is not supported by this MIB.
3.2.3. ifRcvAddressTable
The ifRcvAddressTable is not supported by this MIB.
3.2.4. ifEntry
3.2.4.1. ifEntry for Downstream interfaces
The ifEntry for Downstream interfaces supports the ifGeneralGroup and
the ifPacketGroup of the Interfaces MIB.
ifTable Comments
============== ===========================================
ifIndex Each RF Cable Downstream interface is represented
by an ifEntry.
ifDescr Textual port description.
ifType The IANA value of docsCableDownstream(xx).
ifSpeed Return the speed of this downstream channel.
ifPhysAddress Return an empty string.
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ifAdminStatus The administrative status of this interface.
ifOperStatus The current operational status of this interface.
ifLastChange Refer to the Interfaces MIB.
ifLinkUpDownTrapEnable
Refer to the Interfaces MIB.
ifConnectorPresent
Refer to the Interfaces MIB.
ifHighSpeed Return zero.
ifName Refer to the Interfaces MIB.
ifMtu The size of the largest frame which can be
sent/received on this interface,
specified in octets.
ifInOctets Return zero.
ifInUcastPkts Return zero.
ifInNUcastPkts Deprecated. Return zero.
ifInMulticastPkts Return zero.
ifInBroadcastPkts Return zero.
ifInDiscards Return zero.
ifInErrors Return zero.
ifInUnknownProtos Return zero.
ifOutOctets The total number of octets transmitted on this
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
interface. This includes MAC packets as well as
data packets, and includes the length of the MAC
header.
ifOutNUcastPkts Deprecated. Return the number of Broadcast and
Multicast packets transmitted on this interface.
This includes MAC packets as well as data packets,
and includes the length of the MAC header.
ifOutMulticastPkts
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Return the number of Multicast packets transmitted
on this interface.
This includes MAC packets as well as data packets,
and includes the length of the MAC header.
ifOutBroadcastPkts
Return the number of broadcast packets transmitted
on this interface.
This includes MAC packets as well as data packets,
and includes the length of the MAC header.
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.
ifOutQlen Deprecated. Return zero.
ifSpecific Deprecated. Return {0 0}.
3.2.4.2. ifEntry for Upstream interfaces
The ifEntry for Upstream interfaces supports the ifGeneralGroup and the
ifPacketGroup of the Interfaces MIB.
ifTable Comments
============== ===========================================
ifIndex Each RF Cable Upstream interface is represented
by an ifEntry.
ifDescr Textual port description.
ifType The IANA value of docsCableUpstream(xx).
ifSpeed Return the speed of this upstream channel.
ifPhysAddress Return an empty string.
ifAdminStatus The administrative status of this interface.
ifOperStatus The current operational status of this interface.
ifLastChange Refer to the Interfaces MIB.
ifLinkUpDownTrapEnable
Refer to the Interfaces MIB.
ifConnectorPresent
Refer to the Interfaces MIB.
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ifHighSpeed Return zero.
ifName Refer to the Interfaces MIB.
ifMtu The size of the largest frame which can be
sent/received on this interface,
specified in octets.
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
interface. This includes data packets as well as
MAC layer packets.
ifInNUcastPkts Deprecated. Return the number of Broadcast and
Multicast packets received on this interface.
This includes data packets as well as MAC layer
packets.
ifInMulticastPkts Return the number of Multicast packets received
on this interface. This includes data packets as
well as MAC layer packets.
ifInBroadcastPkts 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 which 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.
ifInUnknownProtos The number of frames with an unknown packet type.
This are MAC frames with an unknown packet type.
ifOutOctets Return zero.
ifOutUcastPkts Return zero.
ifOutNUcastPkts Deprecated. Return zero.
ifOutMulticastPkts
Return zero.
ifOutBroadcastPkts
Return zero.
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ifOutDiscards Return zero.
ifOutErrors Return zero.
ifOutQlen Deprecated. Return zero.
ifSpecific Deprecated. Return {0 0}.
3.2.4.3. ifEntry for the MAC Layer
The ifEntry for the MAC Layer supports the ifGeneralGroup and the
ifPacketGroup of the Interfaces MIB.
ifTable Comments
============== ===========================================
ifIndex Each RF Cable MAC layer entity is represented
by an ifEntry.
ifDescr Textual port description.
ifType The IANA value of docsCableMaclayer(xx).
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.
ifLastChange Refer to the Interfaces MIB.
ifLinkUpDownTrapEnable
Refer to the Interfaces MIB.
ifConnectorPresent
Refer to the Interfaces MIB.
ifHighSpeed Return zero.
ifName Refer to the Interfaces MIB.
ifMtu The size of the largest frame which can be
sent/received on this interface, specified
in octets.
ifInOctets The total number of data octets received on this
interface, targeted for upper protocol layers.
ifInUcastPkts The number of Unicast packets received on this
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interface, targeted for upper protocol layers.
ifInNUcastPkts Deprecated. Return the number of Broadcast and
Multicast packets received on this interface,
targeted for upper protocol layers.
ifInMulticastPkts Return the number of Multicast packets received
on this interface, targeted for upper protocol
layers.
ifInBroadcastPkts Return the number of Broadcast packets received
on this interface, targeted for upper protocol
layers.
ifInDiscards The total number of received packets which 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.
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
protocol layers and transmitted on this interface.
ifOutUcastPkts The number of Unicast packets, received from upper
protocol layers and transmitted on this interface.
ifOutNUcastPkts Deprecated. Return the number of Broadcast and
Multicast packets received from upper protocol
layers and transmitted on this interface.
ifOutMulticastPkts
Return the number of Multicast packets received
from upper protocol layers and transmitted on this
interface.
ifOutBroadcastPkts
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.
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ifOutQlen Deprecated. Return zero.
ifSpecific Deprecated. Return {0 0}.
4. Definitions
DOCS-IF-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, BITS,
Unsigned32, Integer32, Counter32, TimeTicks, IpAddress
FROM SNMPv2-SMI
TEXTUAL-CONVENTION,
MacAddress,
RowStatus,
TruthValue
FROM SNMPv2-TC
OBJECT-GROUP, MODULE-COMPLIANCE
FROM SNMPv2-CONF
ifIndex, InterfaceIndexOrZero
FROM IF-MIB
transmission
FROM RFC1213-MIB;
docsIfMib MODULE-IDENTITY
LAST-UPDATED "9707071024Z" -- Jul 07, 1997
ORGANIZATION "IETF IPCDN Working Group"
CONTACT-INFO
" Guenter Roeck
Postal: cisco Systems
170 West Tasman Drive
San Jose, CA 95134
U.S.A.
Phone: +1 408 527 3143
E-mail: groeck@cisco.com"
DESCRIPTION
"This is the MIB Module for MCNS compliant Radio Frequency
(RF) interfaces in Cable Modems (CM) and Cable Modem
Termination Systems (CMTS)."
::= { transmission 999 }
-- Editor's note: This is not a valid assignment. Final value
-- will be the value of docsCableMaclayer(xx) once assigned.
-- Textual Conventions
TenthdBmV ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d-1"
STATUS current
DESCRIPTION
"This data type represents power levels that are normally
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expressed in dBmV. Units are in tenths of a dBmV;
for example, 5.1 dBmV will be represented as 51."
SYNTAX Integer32
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).
--
docsIfDownstreamChannelTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfDownstreamChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table describes the attributes of downstream
channels (frequency bands)."
::= { docsIfBaseObjects 1 }
docsIfDownstreamChannelEntry OBJECT-TYPE
SYNTAX DocsIfDownstreamChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"List of attributes for a single Downstream channel.
An entry in this table exists for each ifEntry with an
ifType of docsCableDownstream(xx)."
INDEX { ifIndex }
::= { docsIfDownstreamChannelTable 1 }
DocsIfDownstreamChannelEntry ::= SEQUENCE {
docsIfDownChannelId INTEGER,
docsIfDownChannelFrequency INTEGER,
docsIfDownChannelWidth INTEGER,
docsIfDownChannelModulation INTEGER,
docsIfDownChannelInterleave INTEGER,
docsIfDownChannelPower TenthdBmV
}
docsIfDownChannelId OBJECT-TYPE
SYNTAX INTEGER (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
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"The 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 INTEGER (36000000..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 the IF frequency."
-- Editor's note: Is this what we want for systems creating IF output ?
-- If not, what else ?
::= { docsIfDownstreamChannelEntry 2 }
docsIfDownChannelWidth OBJECT-TYPE
SYNTAX INTEGER (0..16000000)
UNITS "hertz"
MAX-ACCESS read-write
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)."
::= { 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)."
::= { docsIfDownstreamChannelEntry 4 }
docsIfDownChannelInterleave OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
other(2),
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taps8Increment16(3),
taps16Increment8(4),
taps32Increment4(5),
taps64Increment2(6),
taps128Increment1(7)
}
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 mse
taps16Increment8(4): protection 12/8.2 usec,
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
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."
::= { docsIfDownstreamChannelEntry 5 }
docsIfDownChannelPower OBJECT-TYPE
SYNTAX TenthdBmV
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."
::= { docsIfDownstreamChannelEntry 6 }
--
-- The following table is implemented on both the CM and the CMTS.
-- For the CM, only attached channels appear in the table.
--
docsIfUpstreamChannelTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfUpstreamChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
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"Describes the attributes of attached upstream channels
(frequency bands)."
::= { docsIfBaseObjects 2 }
docsIfUpstreamChannelEntry OBJECT-TYPE
SYNTAX DocsIfUpstreamChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"List of attributes for a single upstream channel.
An entry in this table exists for each ifEntry with an
ifType of docsCableUpstream(xx)."
INDEX { ifIndex }
::= { docsIfUpstreamChannelTable 1 }
DocsIfUpstreamChannelEntry ::= SEQUENCE {
docsIfUpChannelId INTEGER,
docsIfUpChannelFrequency INTEGER,
docsIfUpChannelWidth INTEGER,
docsIfUpChannelModulationProfile Unsigned32,
docsIfUpChannelSlotSize Unsigned32,
docsIfUpChannelTxTimingOffset Unsigned32,
docsIfUpChannelRangingBackoffStart INTEGER,
docsIfUpChannelRangingBackoffEnd INTEGER,
docsIfUpChannelTxBackoffStart INTEGER,
docsIfUpChannelTxBackoffEnd INTEGER
}
docsIfUpChannelId OBJECT-TYPE
SYNTAX INTEGER (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The CMTS identification of the upstream channel."
::= { docsIfUpstreamChannelEntry 1 }
docsIfUpChannelFrequency OBJECT-TYPE
SYNTAX INTEGER (5000000..1000000000)
UNITS "hertz"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The center of the frequency band associated with this
upstream channel."
::= { docsIfUpstreamChannelEntry 2 }
docsIfUpChannelWidth OBJECT-TYPE
SYNTAX INTEGER (1..16000000)
UNITS "hertz"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
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"The bandwidth of this upstream channel."
::= { docsIfUpstreamChannelEntry 3 }
docsIfUpChannelModulationProfile OBJECT-TYPE
SYNTAX Unsigned32
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 does not exist or is empty."
::= { docsIfUpstreamChannelEntry 4 }
docsIfUpChannelSlotSize OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The number of 6.25 microsecond ticks in each upstream mini-
slot."
::= { docsIfUpstreamChannelEntry 5 }
docsIfUpChannelTxTimingOffset OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A measure of the current round trip time at the CM, or the
maximum round trip time seen by the CMTS. Used for timing
of CM upstream transmissions to ensure synchronized
arrivals at the CMTS. Units are in terms of
(6.25 microseconds/64)."
::= { docsIfUpstreamChannelEntry 8 }
docsIfUpChannelRangingBackoffStart OBJECT-TYPE
SYNTAX INTEGER (0..16)
MAX-ACCESS read-write
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."
::= { docsIfUpstreamChannelEntry 9 }
docsIfUpChannelRangingBackoffEnd OBJECT-TYPE
SYNTAX INTEGER (0..16)
MAX-ACCESS read-write
STATUS current
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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."
::= { docsIfUpstreamChannelEntry 10 }
docsIfUpChannelTxBackoffStart OBJECT-TYPE
SYNTAX INTEGER (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."
::= { docsIfUpstreamChannelEntry 11 }
docsIfUpChannelTxBackoffEnd OBJECT-TYPE
SYNTAX INTEGER (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."
::= { docsIfUpstreamChannelEntry 12 }
-- 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
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STATUS current
DESCRIPTION
"Describes the attributes for a single class of service.
Entries in this table are created at CM registration time
as required."
INDEX { docsIfQosProfIndex }
::= { docsIfQosProfileTable 1 }
DocsIfQosProfileEntry ::= SEQUENCE {
docsIfQosProfIndex INTEGER,
docsIfQosProfPriority INTEGER,
docsIfQosProfMaxUpBandwidth INTEGER,
docsIfQosProfGuarUpBandwidth INTEGER,
docsIfQosProfMaxDownBandwidth INTEGER,
docsIfQosProfMaxTxBurst INTEGER
}
docsIfQosProfIndex OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index value which uniquely identifies an entry
in the docsIfQosProfileTable."
::= { docsIfQosProfileEntry 1 }
docsIfQosProfPriority OBJECT-TYPE
SYNTAX INTEGER (0..7)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A relative priority assigned to this service when allocating
bandwidth. Zero indicates lowest priority; seven highest.
Interpretation of priority is device-specific."
::= { docsIfQosProfileEntry 2 }
docsIfQosProfMaxUpBandwidth OBJECT-TYPE
SYNTAX INTEGER (0..100000000)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum upstream bandwidth, in bits per second,
allowed for a service with this service class.
Zero if there is no restriction of upstream bandwidth."
::= { docsIfQosProfileEntry 3 }
docsIfQosProfGuarUpBandwidth OBJECT-TYPE
SYNTAX INTEGER (0..100000000)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum guaranteed upstream bandwidth, in bits per second,
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allowed for a service with this service class."
::= { docsIfQosProfileEntry 4 }
docsIfQosProfMaxDownBandwidth OBJECT-TYPE
SYNTAX INTEGER (0..100000000)
MAX-ACCESS read-only
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."
::= { docsIfQosProfileEntry 5 }
docsIfQosProfMaxTxBurst OBJECT-TYPE
SYNTAX INTEGER (0..255)
MAX-ACCESS read-only
STATUS current
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."
::= { docsIfQosProfileEntry 6 }
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 }
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(xx) for Cable Modem Termination
Systems and docsCableDownstream(xx) for Cable Modems."
INDEX { ifIndex }
::= { docsIfSignalQualityTable 1 }
DocsIfSignalQualityEntry ::= SEQUENCE {
docsIfSigQIncludesContention TruthValue,
docsIfSigQUnerroreds Counter32,
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docsIfSigQCorrecteds Counter32,
docsIfSigQUncorrectables Counter32,
docsIfSigQSignalNoise TenthdBmV,
docsIfSigQInChannelResponse INTEGER,
docsIfSigQMicroreflections INTEGER
}
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."
::= { docsIfSignalQualityEntry 1 }
docsIfSigQUnerroreds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of codewords received on this channel without error.
This includes all codewords, whether or not they were part of
frames destined for this device."
::= { docsIfSignalQualityEntry 2 }
docsIfSigQCorrecteds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of codewords received on this channel with correctable
errors. This includes all codewords, whether or not they were
part of frames destined for this device."
::= { docsIfSignalQualityEntry 3 }
docsIfSigQUncorrectables OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of codewords received on this channel with uncorrectable
errors. This includes all codewords, whether or not they were
part of frames destined for this device."
::= { docsIfSignalQualityEntry 4 }
docsIfSigQSignalNoise OBJECT-TYPE
SYNTAX TenthdBmV
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Signal/Noise ratio as perceived for this channel.
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Only meaningful in Cable Modems."
::= { docsIfSignalQualityEntry 5 }
docsIfSigQInChannelResponse OBJECT-TYPE
SYNTAX INTEGER {
other(1),
excellent(2),
good(3),
ok(4),
fair(5),
poor(6),
unknown(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Provides a rough indication of the received in-channel
response."
::= { docsIfSignalQualityEntry 6 }
docsIfSigQMicroreflections OBJECT-TYPE
SYNTAX INTEGER {
other(1),
excellent(2),
good(3),
ok(4),
fair(5),
poor(6),
unknown(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Provides a rough indication of the (lack of) micro-
reflections."
::= { docsIfSignalQualityEntry 7 }
--
-- CABLE MODEM GROUP
--
-- #######
--
-- The CM MAC Table
--
docsIfCmMacTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmMacEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
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"Describes the attributes of each CM MAC interface, extending
the information available from ifEntry. Mandatory for all Cable
Modems."
::= { docsIfCmObjects 1 }
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(xx)."
INDEX { ifIndex }
::= { docsIfCmMacTable 1 }
DocsIfCmMacEntry ::= SEQUENCE {
docsIfCmCmtsAddress MacAddress,
docsIfCmCapabilities BITS,
docsIfCmRangingRespTimeout TimeTicks
}
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."
::= { 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 explicitely indicate this capability."
::= { docsIfCmMacEntry 2 }
docsIfCmRangingRespTimeout OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-write
STATUS current
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DESCRIPTION
"Waiting time for a Ranging Response packet."
REFERENCE
"Data over Cable Radio Frequency Interface specification,
Section 7, timer T3"
DEFVAL { 20 }
::= { docsIfCmMacEntry 3 }
--
-- 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(xx)."
INDEX { ifIndex }
::= { docsIfCmStatusTable 1 }
DocsIfCmStatusEntry ::= SEQUENCE {
docsIfCmStatusValue INTEGER,
docsIfCmStatusCode OCTET STRING,
docsIfCmStatusTxPower TenthdBmV,
docsIfCmStatusResets Counter32,
docsIfCmStatusLostSyncs Counter32,
docsIfCmStatusInvalidMaps Counter32,
docsIfCmStatusInvalidUcds Counter32,
docsIfCmStatusT2Timeouts Counter32,
docsIfCmStatusT3Timeouts Counter32,
docsIfCmStatusT4Timeouts Counter32,
docsIfCmStatusRangingAborteds Counter32
}
docsIfCmStatusValue OBJECT-TYPE
SYNTAX INTEGER {
other(1),
notReady(2),
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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
"RF Interface Specification, Chapter 7.2"
::= { docsIfCmStatusEntry 1 }
docsIfCmStatusCode OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Status code for this Cable Modem as defined
in Appendix A. The status code consists of a single
character indicating error groups, followed by a two-
or three-digit number indicating the status condition."
::= { docsIfCmStatusEntry 2 }
docsIfCmStatusTxPower OBJECT-TYPE
SYNTAX TenthdBmV
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The operational transmit power for the attached upstream
channel."
::= { 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
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MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the CM lost synchronization with
the downstream channel."
::= { docsIfCmStatusEntry 5 }
docsIfCmStatusInvalidMaps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the CM received invalid MAP messages."
::= { docsIfCmStatusEntry 6 }
docsIfCmStatusInvalidUcds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the CM received invalid UCD messages."
::= { docsIfCmStatusEntry 7 }
docsIfCmStatusT2Timeouts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times counter T2 expired in the CM."
::= { docsIfCmStatusEntry 8 }
docsIfCmStatusT3Timeouts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times counter T3 expired in the CM."
::= { docsIfCmStatusEntry 9 }
docsIfCmStatusT4Timeouts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times counter T4 expired in the CM."
::= { docsIfCmStatusEntry 10 }
docsIfCmStatusRangingAborteds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
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"Number of times the ranging process was aborted
by the CMTS."
::= { docsIfCmStatusEntry 11 }
--
-- 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(xx)."
INDEX { ifIndex, docsIfCmServiceId }
::= { docsIfCmServiceTable 1 }
DocsIfCmServiceEntry ::= SEQUENCE {
docsIfCmServiceId INTEGER,
docsIfCmServiceQosProfile INTEGER,
docsIfCmServiceTxSlotsImmed Counter32,
docsIfCmServiceTxSlotsDed Counter32,
docsIfCmServiceTxRetries Counter32,
docsIfCmServiceTxExceeded Counter32,
docsIfCmServiceRqRetries Counter32,
docsIfCmServiceRqExceeded Counter32
}
docsIfCmServiceId OBJECT-TYPE
SYNTAX INTEGER (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 }
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docsIfCmServiceQosProfile OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The index in docsIfQosProfileTable describing the quality of
service attributes associated with this particular service."
::= { 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 which are presumed to have arrived at the head-
end (i.e., those which were explicitly acknowledged.) It does
not include retransmission attempts or mini-slots used by
Requests."
::= { 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)."
::= { 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 which did not result in
acknowledgment."
::= { docsIfCmServiceEntry 5 }
docsIfCmServiceTxExceeded OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of data PDUs transmission failures due to excessive
retries without acknowledgment."
::= { docsIfCmServiceEntry 6 }
docsIfCmServiceRqRetries OBJECT-TYPE
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SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of attempts to transmit bandwidth requests which did
not result in acknowledgment."
::= { docsIfCmServiceEntry 7 }
docsIfCmServiceRqExceeded 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."
::= { docsIfCmServiceEntry 8 }
--
-- 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(xx)."
INDEX { ifIndex }
::= { docsIfCmtsMacTable 1 }
DocsIfCmtsMacEntry ::= SEQUENCE {
docsIfCmtsCapabilities BITS,
docsIfCmtsSyncInterval INTEGER,
docsIfCmtsUcdInterval INTEGER,
docsIfCmtsMaxServiceIds INTEGER,
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docsIfCmtsInsertionInterval INTEGER,
docsIfCmtsInvitedRangingAttempts INTEGER
}
docsIfCmtsCapabilities OBJECT-TYPE
SYNTAX BITS {
atmCells(0),
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 explicitely indicate
this capability."
::= { docsIfCmtsMacEntry 1 }
docsIfCmtsSyncInterval OBJECT-TYPE
SYNTAX INTEGER (1..200)
UNITS "Milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The interval between CMTS transmission of successive SYNC
messages at this interface."
REFERENCE
"Data Over Cable Radio Frequency Interface Specification,
[6], Sync Interval."
::= { docsIfCmtsMacEntry 2 }
docsIfCmtsUcdInterval OBJECT-TYPE
SYNTAX INTEGER (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
"Data Over Cable Radio Frequency Interface Specification,
[6], UCD Interval."
::= { docsIfCmtsMacEntry 3 }
docsIfCmtsMaxServiceIds OBJECT-TYPE
SYNTAX INTEGER (1..16383)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum number of service IDs that may be
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simultaneously active."
::= { docsIfCmtsMacEntry 4 }
docsIfCmtsInsertionInterval OBJECT-TYPE
SYNTAX INTEGER(0..160000)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The number of mini-slots 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 number. Maximum amount of time
permitted by the specification is 2 seconds, or 160,000
mini-slots at a symbol rate of 2.56 Msym/s."
REFERENCE
"Data Over Cable Radio Frequency Interface Specification,
[6], Ranging Interval."
::= { docsIfCmtsMacEntry 5 }
docsIfCmtsInvitedRangingAttempts OBJECT-TYPE
SYNTAX INTEGER (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 syatem
should attempt to range forever."
::= { docsIfCmtsMacEntry 6 }
--
-- CMTS status table.
--
docsIfCmtsStatusTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIfCmtsStatusEntry
MAX-ACCESS not-accessible
STATUS current
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(xx)."
INDEX { ifIndex }
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::= { docsIfCmtsStatusTable 1 }
DocsIfCmtsStatusEntry ::= SEQUENCE {
docsIfCmtsStatusInvalidRangeReqs Counter32,
docsIfCmtsStatusRangingAborteds Counter32,
docsIfCmtsStatusInvalidRegReqs Counter32,
docsIfCmtsStatusFailedRegReqs Counter32,
docsIfCmtsStatusInvalidDataReqs Counter32
}
docsIfCmtsStatusInvalidRangeReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts invalid RNG-REQ messages received on
this interface."
::= { docsIfCmtsStatusEntry 1 }
docsIfCmtsStatusRangingAborteds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts ranging attempts that were explicitely
aborted by the CMTS."
::= { docsIfCmtsStatusEntry 2 }
docsIfCmtsStatusInvalidRegReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts invalid REG-REQ messages received on
this interface."
::= { 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."
::= { docsIfCmtsStatusEntry 4 }
docsIfCmtsStatusInvalidDataReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
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"This object counts invalid data request messages
received on this interface."
::= { docsIfCmtsStatusEntry 5 }
--
-- 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
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 INTEGER,
docsIfCmtsCmStatusMacAddress MacAddress,
docsIfCmtsCmStatusIpAddress IpAddress,
docsIfCmtsCmStatusDownChannelIfIndex InterfaceIndexOrZero,
docsIfCmtsCmStatusUpChannelIfIndex InterfaceIndexOrZero,
docsIfCmtsCmStatusRxPower TenthdBmV,
docsIfCmtsCmStatusTimingOffset Unsigned32,
docsIfCmtsCmStatusEqualizationData OCTET STRING
}
docsIfCmtsCmStatusIndex OBJECT-TYPE
SYNTAX INTEGER (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
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SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
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."
::= { docsIfCmtsCmStatusEntry 2 }
docsIfCmtsCmStatusIpAddress OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
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."
::= { 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
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The receive power as percieved for upstream data from
this Cable Modem.
If the receive power is unknown, this object returns
a value of zero."
::= { docsIfCmtsCmStatusEntry 6 }
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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). Returns zero if the value
is unknown."
::= { 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."
::= { docsIfCmtsCmStatusEntry 8 }
--
-- 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.
Entries in this table exist for each ifEntry with an
ifType of docsCableMaclayer(xx), 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 {
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docsIfCmtsServiceId INTEGER,
docsIfCmtsServiceCmStatusIndex INTEGER,
docsIfCmtsServiceAdminStatus INTEGER,
docsIfCmtsServiceQosProfile Integer32,
docsIfCmtsServiceCreateTime TimeTicks,
docsIfCmtsServiceInOctets Counter32,
docsIfCmtsServiceInPackets Counter32
}
docsIfCmtsServiceId OBJECT-TYPE
SYNTAX INTEGER (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 INTEGER (0..2147483647)
MAX-ACCESS read-only
STATUS current
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."
::= { 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
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The index in docsIfQosProfileTable describing the quality of
service attributes associated with this particular service."
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::= { docsIfCmtsServiceEntry 4 }
docsIfCmtsServiceCreateTime OBJECT-TYPE
SYNTAX TimeTicks
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 data octets received on this
Service ID."
::= { docsIfCmtsServiceEntry 6 }
docsIfCmtsServiceInPackets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The cumulative number of data packets received on this
Service ID."
::= { docsIfCmtsServiceEntry 7 }
--
-- 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
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.
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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."
INDEX { docsIfCmtsModIndex, docsIfCmtsModIntervalUsageCode }
::= { docsIfCmtsModulationTable 1 }
DocsIfCmtsModulationEntry ::= SEQUENCE {
docsIfCmtsModIndex INTEGER,
docsIfCmtsModIntervalUsageCode INTEGER,
docsIfCmtsModControl RowStatus,
docsIfCmtsModType INTEGER,
-- docsIfCmtsModPreambleStart INTEGER,
docsIfCmtsModPreambleLen INTEGER,
docsIfCmtsModDifferentialEncoding TruthValue,
docsIfCmtsModFECErrorCorrection INTEGER,
docsIfCmtsModFECCodewordLength INTEGER,
docsIfCmtsModScramblerSeed INTEGER,
docsIfCmtsModMaxBurstSize INTEGER,
docsIfCmtsModGuardTimeSize Unsigned32,
docsIfCmtsModLastCodewordShortened TruthValue,
docsIfCmtsModScrambler TruthValue
}
docsIfCmtsModIndex OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
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)
}
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."
::= { docsIfCmtsModulationEntry 2 }
docsIfCmtsModControl OBJECT-TYPE
SYNTAX RowStatus
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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)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The modulation type used on this channel."
DEFVAL { qpsk }
::= { docsIfCmtsModulationEntry 4 }
-- Editor's note:
-- after thinking about this further, only the preamble length
-- should be specified. It should be up to the implementation
-- to select a sufficient start offset for any given length.
--
-- docsIfCmtsModPreambleStart OBJECT-TYPE
-- SYNTAX INTEGER (0..1023)
-- MAX-ACCESS read-create
-- STATUS current
-- DESCRIPTION
-- "The starting bit offset into the preamble string
-- to be used for the preamble for this modulation profile."
-- DEFVAL { 0 }
-- ::= { docsIfCmtsModulationEntry 5 }
docsIfCmtsModPreambleLen OBJECT-TYPE
SYNTAX INTEGER (0..1024)
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."
::= { docsIfCmtsModulationEntry 6 }
docsIfCmtsModDifferentialEncoding OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Whether or not differential encoding is used on this channel."
DEFVAL { false }
::= { docsIfCmtsModulationEntry 7 }
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docsIfCmtsModFECErrorCorrection OBJECT-TYPE
SYNTAX INTEGER (0..10)
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."
DEFVAL { 0 }
::= { docsIfCmtsModulationEntry 8 }
docsIfCmtsModFECCodewordLength OBJECT-TYPE
SYNTAX INTEGER (1..255)
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."
DEFVAL { 32 }
::= { docsIfCmtsModulationEntry 9 }
docsIfCmtsModScramblerSeed OBJECT-TYPE
SYNTAX INTEGER (0..32767)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The 15 bit seed value for the scrambler polynomial."
DEFVAL { 0 }
::= { docsIfCmtsModulationEntry 10 }
docsIfCmtsModMaxBurstSize OBJECT-TYPE
SYNTAX INTEGER (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."
::= { docsIfCmtsModulationEntry 11 }
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."
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::= { docsIfCmtsModulationEntry 12 }
docsIfCmtsModLastCodewordShortened OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates if the last FEC codeword is truncated."
DEFVAL { true }
::= { docsIfCmtsModulationEntry 13 }
docsIfCmtsModScrambler OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates if the scrambler is employed."
DEFVAL { false }
::= { docsIfCmtsModulationEntry 14 }
--
-- 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
docsIfBasicCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for devices that implement MCNS
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
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DESCRIPTION
"This group is implemented only in Cable Modem Termination
Systems, not in Cable Modems."
OBJECT docsIfDownChannelFrequency
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfDownChannelWidth
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."
OBJECT docsIfDownChannelModulation
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfDownChannelInterleave
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelFrequency
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
OBJECT docsIfUpChannelWidth
MIN-ACCESS read-only
DESCRIPTION
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
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
"Read-write in Cable Modem Termination Systems;
read-only in Cable Modems."
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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 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 docsIfCmtsInsertionInterval
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."
::= { docsIfCompliances 1 }
docsIfBasicGroup OBJECT-GROUP
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OBJECTS {
docsIfDownChannelId,
docsIfDownChannelFrequency,
docsIfDownChannelWidth,
docsIfDownChannelModulation,
docsIfDownChannelInterleave,
docsIfDownChannelPower,
docsIfUpChannelId,
docsIfUpChannelFrequency,
docsIfUpChannelWidth,
docsIfUpChannelModulationProfile,
docsIfUpChannelSlotSize,
docsIfUpChannelTxTimingOffset,
docsIfUpChannelRangingBackoffStart,
docsIfUpChannelRangingBackoffEnd,
docsIfUpChannelTxBackoffStart,
docsIfUpChannelTxBackoffEnd,
docsIfQosProfPriority,
docsIfQosProfMaxUpBandwidth,
docsIfQosProfGuarUpBandwidth,
docsIfQosProfMaxDownBandwidth,
docsIfQosProfMaxTxBurst,
docsIfSigQIncludesContention,
docsIfSigQUnerroreds,
docsIfSigQCorrecteds,
docsIfSigQUncorrectables,
docsIfSigQSignalNoise,
docsIfSigQInChannelResponse,
docsIfSigQMicroreflections
}
STATUS current
DESCRIPTION
"Group of objects implemented in both Cable Modems and
Cable Modem Termination Systems."
::= { docsIfGroups 1 }
docsIfCmGroup OBJECT-GROUP
OBJECTS {
docsIfCmCmtsAddress,
docsIfCmCapabilities,
docsIfCmRangingRespTimeout,
docsIfCmStatusValue,
docsIfCmStatusCode,
docsIfCmStatusTxPower,
docsIfCmStatusResets,
docsIfCmStatusLostSyncs,
docsIfCmStatusInvalidMaps,
docsIfCmStatusInvalidUcds,
docsIfCmStatusT2Timeouts,
docsIfCmStatusT3Timeouts,
docsIfCmStatusT4Timeouts,
docsIfCmStatusRangingAborteds,
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docsIfCmServiceQosProfile,
docsIfCmServiceTxSlotsImmed,
docsIfCmServiceTxSlotsDed,
docsIfCmServiceTxRetries,
docsIfCmServiceTxExceeded,
docsIfCmServiceRqRetries,
docsIfCmServiceRqExceeded
}
STATUS current
DESCRIPTION
"Group of objects implemented in both Cable Modems and
Cable Modem Termination Systems."
::= { docsIfGroups 2 }
docsIfCmtsGroup OBJECT-GROUP
OBJECTS {
docsIfCmtsCapabilities,
docsIfCmtsSyncInterval,
docsIfCmtsUcdInterval,
docsIfCmtsMaxServiceIds,
docsIfCmtsInsertionInterval,
docsIfCmtsInvitedRangingAttempts,
docsIfCmtsStatusInvalidRangeReqs,
docsIfCmtsStatusRangingAborteds,
docsIfCmtsStatusInvalidRegReqs,
docsIfCmtsStatusFailedRegReqs,
docsIfCmtsStatusInvalidDataReqs,
docsIfCmtsCmStatusMacAddress,
docsIfCmtsCmStatusIpAddress,
docsIfCmtsCmStatusDownChannelIfIndex,
docsIfCmtsCmStatusUpChannelIfIndex,
docsIfCmtsCmStatusRxPower,
docsIfCmtsCmStatusTimingOffset,
docsIfCmtsCmStatusEqualizationData,
docsIfCmtsServiceCmStatusIndex,
docsIfCmtsServiceAdminStatus,
docsIfCmtsServiceQosProfile,
docsIfCmtsServiceCreateTime,
docsIfCmtsServiceInOctets,
docsIfCmtsServiceInPackets,
docsIfCmtsModType,
docsIfCmtsModControl,
-- docsIfCmtsModPreambleStart,
docsIfCmtsModPreambleLen,
docsIfCmtsModDifferentialEncoding,
docsIfCmtsModFECErrorCorrection,
docsIfCmtsModFECCodewordLength,
docsIfCmtsModScramblerSeed,
docsIfCmtsModMaxBurstSize,
docsIfCmtsModGuardTimeSize,
docsIfCmtsModLastCodewordShortened,
docsIfCmtsModScrambler
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}
STATUS current
DESCRIPTION
"Group of objects implemented in Cable Modem Termination
Systems."
::= { docsIfGroups 3 }
END
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5. Acknowledgments
This document was produced by the IPCDN Working Group. It is based on a
document written by Pam Anderson from CableLabs, Wilson Sawyer from
BayNetworks, and Rich Woundy from Continental Cablevision.
Special thanks is also due to
Azlina Palmer
6. References
[1] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and
S. Waldbusser, "Structure of Management Information for Version 2
of the Simple Network Management Protocol (SNMPv2)", RFC 1902,
January 1996.
[2] McCloghrie, K., and M. Rose, Editors, "Management Information Base
for Network Management of TCP/IP-based internets: MIB-II", STD 17,
RFC 1213, Hughes LAN Systems, Performance Systems International,
March 1991.
[3] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "A Simple
Network Management Protocol (SNMP)", STD 15, RFC 1157, SNMP
Research, Performance Systems International, MIT Lab for Computer
Science, May 1990.
[4] SNMPv2 Working Group, 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.
[5] McCloghrie, K. and F. Kastenholz, "Evolution of the Interfaces
Group of MIB-II", RFC 1573, Hughes LAN Systems, FTP Software,
January 1994.
[6] "MCNS Data Over Cable Services Cable Modem Radio Frequency
Interface Specification SP-RFID01-970326", MCNS, March 1997.
7. Security Considerations
Security issues are not discussed in this memo.
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8. Author's Address
Guenter Roeck
cisco Systems
170 West Tasman Drive
San Jose, CA 95134
U.S.A.
Phone: +1 408 527 3143
Email: groeck@cisco.com
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