TIMETRA-IEEE8021-CFM-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

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Organization: Alcatel-Lucent

Last Updated: 2011-02-01

Description: TIMETRA-IEEE8021-CFM-MIB module

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What Is TIMETRA-IEEE8021-CFM-MIB?

TIMETRA-IEEE8021-CFM-MIB is an Alcatel-Lucent (Timetra/SROS) vendor MIB extending the standard IEEE 802.1ag Connectivity Fault Management (CFM) MIB to manage and provision CFM functionality on Alcatel-Lucent SROS routers and switches. It exposes objects covering Maintenance Endpoints (MEPs), maintenance domain/association indexes, and CFM bindings to service distribution points (SDPs), including MAC address and direction of each MEP. It is used to monitor the software/protocol status of Ethernet OAM connectivity fault detection, letting an admin inspect MEP state and CFM-to-SDP bindings to verify CFM is correctly bound to a given service, helping detect a connectivity fault or misconfigured CFM session between service endpoints. It explicitly extends the standard IEEE8021-CFM-MIB, so it depends on that IEEE/IETF standard MIB for base CFM object definitions. It is typically deployed on Alcatel-Lucent (Nokia) SROS service routers in carrier Ethernet/MPLS networks requiring Ethernet connectivity fault management across service provider links, and administrators typically use a TIMETRA-IEEE8021-CFM-MIB MIB Browser session to inspect these bindings directly.

IPNetwork Monitor allows you to monitor SNMP objects defined in TIMETRA-IEEE8021-CFM-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

  • Alcatel-Lucent (Nokia) SROS service routers and switches

Monitoring Examples

The tmnxDot1agCfmSdpBindStackTable/tmnxDot1agCfmSdpBindStackEntry rows, indexed by tmnxDot1agCfmSdpBindStackSdpId and tmnxDot1agCfmSdpBindStackVcId, expose tmnxDot1agCfmSdpBindStackMdLevel and tmnxDot1agCfmSdpBindStackMepId so an admin can confirm which maintenance level and MEP ID are bound to a given service distribution point. Checking tmnxDot1agCfmSdpBindStackMacAddress against the expected far-end MEP's MAC address helps verify the CFM session is bound to the correct peer. If entries in tmnxDot1agCfmMepTable show an unexpected direction or a missing MEP, it would indicate a CFM misconfiguration preventing fault detection on that Ethernet service path.

What Can Be Monitored

  • CFM maintenance endpoint (MEP) state
  • CFM SDP binding configuration
  • MEP direction and MAC address
  • maintenance domain/association levels
Imported Objects

From IEEE8021-CFM-MIB

Dot1agCfmMDLevel
Dot1agCfmMepId
Dot1agCfmMepIdOrZero
Dot1agCfmMpDirection
dot1agCfmMaIndexOBJECT-TYPE
dot1agCfmMaMepListEntryOBJECT-TYPE
dot1agCfmMaNetEntryOBJECT-TYPE
dot1agCfmMdIndexOBJECT-TYPE
dot1agCfmMepDbEntryOBJECT-TYPE
dot1agCfmMepEntryOBJECT-TYPE
dot1agCfmMepIdentifierOBJECT-TYPE
dot1agCfmMepTransmitLbmDestMacAddressOBJECT-TYPE
dot1agCfmMepTransmitLtmSeqNumberOBJECT-TYPE

From IF-MIB

InterfaceIndex
InterfaceIndexOrZero

From Q-BRIDGE-MIB

VlanIdOrNone

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
RowStatus
TruthValue

From TIMETRA-GLOBAL-MIB

timetraSRMIBModulesOBJECT-IDENTITY
tmnxSRConfsOBJECT-IDENTITY
tmnxSRNotifyPrefixOBJECT-IDENTITY
tmnxSRObjsOBJECT-IDENTITY

From TIMETRA-TC-MIB

TItemDescription
TNamedItem
TmnxEnabledDisabled
TmnxServId

How to Use in IPNetwork Monitor

Example using tmnxDot1agCfmMepEthAisTxCount OID:

Select an Alcatel-Lucent (Nokia) SROS service routers and switch (802.1ag CFM MEP/SDP binding status) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type tmnxDot1agCfmMepEthAisTxCount into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The value of tmnxDot1agCfmMepEthAisTxCount indicates number of AIS frames transmitted on the MEP. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Extends IEEE 802.1ag Connectivity Fault Management for Alcatel-Lucent SROS products.

Start monitoring Alcatel-Lucent (Nokia) SROS service routers and switches (802.1ag CFM MEP/SDP binding status) 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 TIMETRA-IEEE8021-CFM-MIB