RFC1407-EXT-MIB

All MIBs › RFC1407-EXT-MIB

Category: IETF Standards

Description: Provides extended DS3/T3 management objects supplementing the RFC 1407 base MIB definitions.

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What Is RFC1407-EXT-MIB?

RFC1407-EXT-MIB is a vendor extension MIB (object prefix 'cndsx3') that supplements the IETF DS3/E3 Interface MIB defined in RFC 1407 with additional configuration and statistics objects for DS3/E3 (T3/E3) WAN interfaces. It adds extended configuration objects -- line build-out, scrambling enable, E3 configuration type -- alongside extended operational and total-statistics tables covering cell-level errors. It is used to monitor both configuration correctness and link-quality/hardware status of DS3/E3 interface cards: line build-out and scrambling settings must match the far-end and physical cable length, while cndsx3CellPayloadHECError and the total-statistics/operational tables reveal ATM cell header errors and line-level faults on the physical WAN link. It explicitly depends on and extends the base RFC 1407 DS3/E3 Interface MIB, reusing its interface indexing and adding cell/E3-specific objects on top of it. It would be deployed on router or multiplexer WAN interface cards carrying DS3/E3 circuits, particularly where ATM cells are carried over the DS3/E3 physical layer, and engineers consulting the RFC1407-EXT-MIB RFC alongside base RFC 1407 can map each extended object back to its underlying interface index.

IPNetwork Monitor allows you to monitor SNMP objects defined in RFC1407-EXT-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

router/multiplexer DS3/E3 (T3/E3) WAN interface cards

Monitoring Examples

An administrator would poll cndsx3ConfigExtTable/cndsx3ConfigExtEntry (indexed by cndsx3LineIndex) to confirm cndsx3LineBuildOut, cndsx3ScramblingEnable, and cndsx3E3ConfigType are set correctly for the circuit, then check cndsx3OperTable and cndsx3TotalExtTable for cndsx3CellPayloadHECError counts; a rising HEC error count on an otherwise correctly configured line typically points to a physical-layer fault such as a bad cable, connector, or line driver on the DS3/E3 card.

What Can Be Monitored

DS3/E3 line build-out setting
scrambling enable/disable state
E3 configuration type
cell payload HEC error count
extended line operational/total statistics

Imported Objects

From CENTILLION-ROOT-MIB

EnableIndicator
extensions	OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Gauge

From RFC1407-MIB

dsx3TotalIndex

OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
cnds3e3Ext	1.3.6.1.4.1.930.3.6
cndsx3Oper	1.3.6.1.4.1.930.3.6.1
cndsx3OperTable	1.3.6.1.4.1.930.3.6.1.1		not-accessible	This table contains the configuration information that are operational currently. This table contains all the objects defined in dsx3ConfigTable plus some additional. This table is read only
cndsx3OperEntry	1.3.6.1.4.1.930.3.6.1.1.1		not-accessible	An entry in the DS3/E3 Operational Configuration table.
INT cndsx3OperLineIndex	1.3.6.1.4.1.930.3.6.1.1.1.1	INTEGER	read-only	This object is the identifier of a DS3/E3 Interface on a managed device.
INT cndsx3OperLineType	1.3.6.1.4.1.930.3.6.1.1.1.2	INTEGER	read-only	This variable indicates the variety of DS3 C-bit or E3 application implementing this interface. The type of interface affects the interpretation of the usage and error statistics. The rate of DS3 is 44.736 Mbps and E3 is 34.368 Mbps. The dsx3ClearChannel value means that the C-bits are not used except for sending/receiving AIS. The values, in sequence, describe: TITLE: SPECIFICATION: dsx3M23 ANSI T1.107-1988 dsx3SYNTRAN ANSI T1.107-1988 dsx3CbitParity ANSI T1.107a-1989 dsx3ClearChannel ANSI T1.102-1987 e3Framed CCITT G.751 e3Plcp ETSI T/NA(91)18.
INT cndsx3OperLoopbackConfig	1.3.6.1.4.1.930.3.6.1.1.1.3	INTEGER	read-only	This variable represents the loopback configuration of the DS3/E3 interface. dsx3NoLoop Not in the loopback state. A device that is not capable of performing a loopback on the interface shall always return this as it's value. dsx3PayloadLoop The received signal at this interface is looped through the device. Typically the received signal is looped back for retransmission after it has passed through the device's framing function. dsx3LineLoop The received signal at this interface does not go through the device (minimum penetration) but is looped back out. dsx3OtherLoop Loopbacks that are not defined here.
INT cndsx3OperLineStatus	1.3.6.1.4.1.930.3.6.1.1.1.4	INTEGER	read-only	This variable indicates the Line Status of the interface. It contains loopback state information and failure state information. The dsx3LineStatus is a bit map represented as a sum, therefore, it can represent multiple failures and a loopback (see dsx3LoopbackConfig object for the type of loopback) simultaneously. The dsx3NoAlarm should be set if and only if no other flag is set. The various bit positions are: 1 dsx3NoAlarm No alarm present 2 dsx3RcvRAIFailure Receiving Yellow/Remote Alarm Indication 4 dsx3XmitRAIAlarm Transmitting Yellow/Remote Alarm Indication 8 dsx3RcvAIS Receiving AIS failure state 16 dsx3XmitAIS Transmitting AIS 32 dsx3LOF Receiving LOF failure state 64 dsx3LOS Receiving LOS failure state 128 dsx3LoopbackState Looping the received signal 256 dsx3RcvTestCode Receiving a Test Pattern 512 dsx3OtherFailure any line status not defined here
INT cndsx3OperTransmitClockSource	1.3.6.1.4.1.930.3.6.1.1.1.5	INTEGER	read-only	The source of Transmit Clock. is derived from the recovered receive clock of another DS3 interface.
INT cndsx3OperPlcpLOFEvent	1.3.6.1.4.1.930.3.6.1.1.1.6	INTEGER	read-only	Indicates PLCP Loss of Frame event. The following value is read-only: on(1).......Loss of Frame event is present off(2)......Loss of Frame event is not present
INT cndsx3OperG832CellDelineation	1.3.6.1.4.1.930.3.6.1.1.1.7	INTEGER	read-only	Indicates Cell Delineation events. The following value is read-only: on(1).......Cell Delineation event is present off(2)......Cell Delineation event is not present
ENA cndsx3OperLineBuildOut	1.3.6.1.4.1.930.3.6.1.1.1.8	EnableIndicator	read-only	Indicates line buildout status
ENA cndsx3OperScramblingEnable	1.3.6.1.4.1.930.3.6.1.1.1.9	EnableIndicator	read-only	This field indicates if scrambing is enabled or disabled.
INT cndsx3OperE3ConfigType	1.3.6.1.4.1.930.3.6.1.1.1.10	INTEGER	read-only	This object shows E3Config mode. The following value is read-only: other(1).......other than g751 and g832 g751(2)........E3ConfigType is G751 g832(3)........E3ConfigType is G832
cndsx3TotalExt	1.3.6.1.4.1.930.3.6.2
cndsx3TotalExtTable	1.3.6.1.4.1.930.3.6.2.1		not-accessible	This table contains the counters that are additional to the existing dsx3TotalTable
cndsx3TotalExtEntry	1.3.6.1.4.1.930.3.6.2.1.1		not-accessible	An entry in the DS3/E3 TotalExt table.
GAU cndsx3CellPayloadHECError	1.3.6.1.4.1.930.3.6.2.1.1.1	Gauge	read-only	A counter of Payload HEC errors.
cndsx3ConfigExt	1.3.6.1.4.1.930.3.6.3
cndsx3ConfigExtTable	1.3.6.1.4.1.930.3.6.3.1		not-accessible	This table contains the configurable parameters that are additional to the existing dsx3ConfigTable
cndsx3ConfigExtEntry	1.3.6.1.4.1.930.3.6.3.1.1		not-accessible	An entry in the DS3/E3 ConfigExt table.
ENA cndsx3LineBuildOut	1.3.6.1.4.1.930.3.6.3.1.1.1	EnableIndicator	read-write	Indicates LineBuild Out status
INT cndsx3LineIndex	1.3.6.1.4.1.930.3.6.3.1.1.2	INTEGER	read-only	This object is the identifier of a DS3/E3 Interface on a managed device.
ENA cndsx3ScramblingEnable	1.3.6.1.4.1.930.3.6.3.1.1.3	EnableIndicator	read-write	This field indicates if scrambing is enabled or disabled.
INT cndsx3E3ConfigType	1.3.6.1.4.1.930.3.6.3.1.1.4	INTEGER	read-write	This object allows to switch between E3 G751 and G832 mode. The following value is read-only: other(1).......other than g751 and g832 The following value is read-write: g751(2)........E3ConfigType is G751 g832(3)........E3ConfigType is G832

RFC description

Provides DS3/E3 interface extensions for Bay Networks devices including payload HEC error counters.

Start monitoring router/multiplexer DS3/E3 (T3/E3) WAN interface cards (vendor extension of RFC 1407) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download RFC1407-EXT-MIB

What Is RFC1407-EXT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description