TIMETRA-ELMI-MIB

All MIBs › TIMETRA-ELMI-MIB

Organization: Alcatel-Lucent

Last Updated: 2009-02-28

Category: Ethernet OAM, Nokia SR OS / Alcatel-Lucent 7750 SR

Description: Manages Nokia/Alcatel-Lucent 7750 SR E-LMI Ethernet local management interface status and parameters.

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What Is TIMETRA-ELMI-MIB?

TIMETRA-ELMI-MIB is an Alcatel-Lucent (now Nokia) MIB (timetraSRMIBModules 68) for managing and provisioning Ethernet Local Management Interface (E-LMI) on the 7x50 Service Router product family's Ethernet ports. Its tmnxElmiIfConfigTable, which AUGMENTS the existing tmnxPortEtherEntry row for each configured port, exposes tmnxElmiIfCfgMode (none, uniN, or uniC — disabling E-LMI or setting the port as a UNI-N/UNI-C peer), tmnxElmiIfCfgStatus (up/down based on whether the configured consecutive-error threshold tmnxElmiIfCfgN393 has been exceeded), the UNI-C polling timer tmnxElmiIfCfgT391 and UNI-N polling-verification timer tmnxElmiIfCfgT392, and tmnxElmiIfCfgUniType/tmnxElmiIfCfgUniIdentifier describing the negotiated UNI service-multiplexing type and its identifier string. A companion tmnxElmiIfConfigTableLastChanged timestamp tracks when any row last changed. Monitoring this MIB reveals whether the E-LMI control channel between a customer edge device and the network is up, which is essential for diagnosing Ethernet service provisioning mismatches at the UNI. It depends on TIMETRA-PORT-MIB for the underlying Ethernet port entry it augments and on TIMETRA-CHASSIS-MIB/TIMETRA-GLOBAL-MIB for chassis and module indexing. Anyone operating 7x50 SR Ethernet services can find a TIMETRA-ELMI-MIB download to monitor E-LMI status per port.

IPNetwork Monitor allows you to monitor SNMP objects defined in TIMETRA-ELMI-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) 7x50 Service Router family

Monitoring Examples

An operator polls tmnxElmiIfCfgStatus for a UNI-C port to confirm E-LMI is up, cross-checking tmnxElmiIfCfgN393 against recent polling failures; a status of down together with a T391/T392 polling timer mismatch between the customer and network sides would indicate the E-LMI session has exceeded its consecutive-error threshold due to misaligned polling intervals.

What Can Be Monitored

E-LMI mode per port (none/UNI-N/UNI-C)
E-LMI operational status (up/down)
consecutive-error threshold configuration
UNI-C/UNI-N polling and verification timers
negotiated UNI service-multiplexing type
configuration table last-changed timestamp

Imported Objects

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TEXTUAL-CONVENTION
TimeStamp

From TIMETRA-CHASSIS-MIB

tmnxChassisIndex

OBJECT-TYPE

From TIMETRA-GLOBAL-MIB

timetraSRMIBModules	OBJECT-IDENTITY
tmnxSRConfs	OBJECT-IDENTITY
tmnxSRNotifyPrefix	OBJECT-IDENTITY
tmnxSRObjs	OBJECT-IDENTITY

From TIMETRA-PORT-MIB

tmnxPortEtherEntry	OBJECT-TYPE
tmnxPortPortID	OBJECT-TYPE

From TIMETRA-TC-MIB

TmnxEncapVal

How to Use in IPNetwork Monitor

Example using tmnxElmiStatRxStatusEnqMsgs OID:

Select an Alcatel-Lucent (Nokia) 7x50 Service Router family (E-LMI control-channel status per Ethernet port) 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 tmnxElmiStatRxStatusEnqMsgs 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 tmnxElmiStatRxStatusEnqMsgs indicates the number of ELMI Status Enquiry messages received on this Ethernet interface. 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 (in messages), 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

OID symbolic	OID numeric	Type	Access	Description
tmnxElmiMIBModule	1.3.6.1.4.1.6527.1.1.3.68			This document is the SNMP MIB module to manage and provision the Ethernet Link Management Interface (E-LMI) components of the Alcatel-Lucent 7x50 device. Copyright 2009-2011 Alcatel-Lucent. All rights reserved. Reproduction of this document is authorized on the condition that the foregoing copyright notice is included. This SNMP MIB module (Specification) embodies Alcatel-Lucent's proprietary intellectual property. Alcatel-Lucent retains all title and ownership in the Specification, including any revisions. Alcatel-Lucent grants all interested parties a non-exclusive license to use and distribute an unmodified copy of this Specification in connection with management of Alcatel-Lucent products, and without fee, provided this copyright notice and license appear on all copies. This Specification is supplied 'as is', and Alcatel-Lucent makes no warranty, either express or implied, as to the use, operation, condition, or performance of the Specification.
tmnxElmiConformance	1.3.6.1.4.1.6527.3.1.1.68
tmnxElmiCompliances	1.3.6.1.4.1.6527.3.1.1.68.1
tmnxElmiCompliance	1.3.6.1.4.1.6527.3.1.1.68.1.1			The compliance statement for revision 1.0 of TIMETRA-ELMI-MIB.
tmnxElmiGroups	1.3.6.1.4.1.6527.3.1.1.68.2
tmnxElmiTimeStampGroup	1.3.6.1.4.1.6527.3.1.1.68.2.1			The tmnxElmiTimeStampGroup consists of the objects used for monitoring overal configuration change of E-LMI configuration for the 7x50.
tmnxElmiIfConfigGroup	1.3.6.1.4.1.6527.3.1.1.68.2.2			The tmnxElmiIfConfigGroup consists of the objects used for management of E-LMI configuration for the 7x50.
tmnxElmiEvcConfigGroup	1.3.6.1.4.1.6527.3.1.1.68.2.3			The tmnxElmiEvcConfigGroup consists of the objects used for management of E-LMI EVC configuration for the 7x50.
tmnxElmiStatsGroup	1.3.6.1.4.1.6527.3.1.1.68.2.4			The tmnxElmiStatsGroup consists of the objects used for collecting statistics for E-LMI for the 7x50.
tmnxElmiEventGroup	1.3.6.1.4.1.6527.3.1.1.68.2.5			The tmnxElmiEventGroup consists of the notifications used for generating events for E-LMI for the 7x50.
tmnxElmiObjs	1.3.6.1.4.1.6527.3.1.2.68
tmnxElmiConfigurationTimeStamps	1.3.6.1.4.1.6527.3.1.2.68.0
TIM tmnxElmiIfConfigTableLastChanged	1.3.6.1.4.1.6527.3.1.2.68.0.1	TimeStamp	read-only	The tmnxElmiIfConfigTableLastChanged indicates the time, since system startup, when a row in the tmnxElmiIfConfigTable last changed.
TIM tmnxElmiEvcCfgTableLastChanged	1.3.6.1.4.1.6527.3.1.2.68.0.2	TimeStamp	read-only	The tmnxElmiEvcCfgTableLastChanged indicates the time, since system startup, when a row in the tmnxElmiEvcConfigTable last changed.
tmnxElmiConfigurations	1.3.6.1.4.1.6527.3.1.2.68.1
tmnxElmiIfConfigTable	1.3.6.1.4.1.6527.3.1.2.68.1.1		not-accessible	The tmnxElmiIfConfigTable has an entry for each port in the system that is configured for Ethernet LMI. It contains the service attributes and associated parameters of Ethernet services observable for the User Network Interface (UNI) to User Network Interface.
tmnxElmiIfConfigEntry	1.3.6.1.4.1.6527.3.1.2.68.1.1.1		not-accessible	The Parameters for a particular User Network Interface. Entries cannot be created and deleted via SNMP SET operations. Rows in this table are created and destroyed by the system, and can not be created or deleted by SNMP SET operations. Each row references an existing tmnxPortEtherEntry row entry.
INT tmnxElmiIfCfgMode	1.3.6.1.4.1.6527.3.1.2.68.1.1.1.1	INTEGER	read-write	The value of tmnxElmiIfCfgMode specifies the mode of the interface. It can be set as User Network Interface Customer (UNI-C), User Network Interface Network (UNI-N), or 'none (0)' to disable E-LMI.
INT tmnxElmiIfCfgStatus	1.3.6.1.4.1.6527.3.1.2.68.1.1.1.2	INTEGER	read-only	The value of tmnxElmiIfCfgStatus indicates the operational status of the Ethernet LMI interface The valid options are: up (1) -- The E-LMI interface is operational. down (2) -- The E-LMI error threshold exceeded.
U32 tmnxElmiIfCfgN393	1.3.6.1.4.1.6527.3.1.2.68.1.1.1.3	Unsigned32	read-write	The value of tmnxElmiIfCfgN393 specifies the ELMI monitored count of the consecutive errors for both UNI-N and UNI-C. It is used to determine if E-LMI is operational or not.
U32 tmnxElmiIfCfgT391	1.3.6.1.4.1.6527.3.1.2.68.1.1.1.4	Unsigned32	read-write	The value of tmnxElmiIfCfgT391 specifies the polling timer for the E-LMI UNI-C.
U32 tmnxElmiIfCfgT392	1.3.6.1.4.1.6527.3.1.2.68.1.1.1.5	Unsigned32	read-write	The value of tmnxElmiIfCfgT392 specifies the polling verification timer for the E-LMI UNI-N.
INT tmnxElmiIfCfgUniType	1.3.6.1.4.1.6527.3.1.2.68.1.1.1.6	INTEGER	read-only	The value of tmnxElmiIfCfgUniType indicates the information retrieved from the CE-VLAN ID/EVC Map Type contained in the UNI Status Information Element. The valid options are: notUsed (0) -- unused value. allToOneBundling (1) -- All VLANs are associated with a single EVC. svcMultiplexNoBundling (2) -- One VLAN is associated with a single EVC. bundling (3) -- multiple VLANs can be associated with a single EVC.
STR tmnxElmiIfCfgUniIdentifier	1.3.6.1.4.1.6527.3.1.2.68.1.1.1.7	TmnxElmiIdentifierString	read-write	The value of tmnxElmiIfCfgUniIdentifier specifies the UNI Indentifier of the E-LMI entity.
tmnxElmiEvcConfigTable	1.3.6.1.4.1.6527.3.1.2.68.1.2		not-accessible	The tmnxElmiEvcConfigTable has an entry for each SAP in the system that is configured for ELMI. It contains the service attributes for the Ethernet Virtual Connection (EVC). An EVC is an association of two or more UNIs.
tmnxElmiEvcConfigEntry	1.3.6.1.4.1.6527.3.1.2.68.1.2.1		not-accessible	The Parameters for a particular Ethernet Virtual Connection (EVC) Interface. Entries cannot be created and deleted via SNMP SET operations. Rows in this table are created and destroyed by the system, and can not be created or deleted by SNMP SET operations. Rows are created for q-tag encapsulated Ethernet SAPs.
TMN tmnxElmiEvcCfgVlanId	1.3.6.1.4.1.6527.3.1.2.68.1.2.1.1	TmnxEncapVal	not-accessible	The value of tmnxElmiEvcCfgVlanId specifies the third index for the tmnxElmiEvcConfigEntry, as well as the VLAN Identifier of the EVC.
STR tmnxElmiEvcCfgIdentifier	1.3.6.1.4.1.6527.3.1.2.68.1.2.1.2	TmnxElmiIdentifierString	read-write	The value of tmnxElmiEvcCfgIdentifier specifies the unique value used in ELMI validation.
INT tmnxElmiEvcCfgType	1.3.6.1.4.1.6527.3.1.2.68.1.2.1.3	INTEGER	read-only	The value of tmnxElmiEvcCfgType indicates the type of EVC configured. The valid options are: p2p (0) -- Point-to-point connection mp2mp (1) -- Multipoint-to-multipoint connection.
INT tmnxElmiEvcCfgStatus	1.3.6.1.4.1.6527.3.1.2.68.1.2.1.4	INTEGER	read-only	The value of tmnxElmiEvcCfgStatus indicates the status reported in the EVC Status Information Element. An EVC is fully operational when the EVC is capable of transferring traffic among all of the UNIs in the EVC. The valid options are: notActive (0) -- The EVC is not fully operational. newAndNotActive (1) -- The EVC is newly created and not fully operational. active (2) -- The EVC is fully operational. newAndActive (3) -- The EVC is newly created and fully operational. partiallyActive (4) -- The EVC is multipoint-to- multipoint and some of the EVC endpoints are operational. newAndPartiallyActive (5) -- The EVC is newly created and 'partiallyActive'.
TIM tmnxElmiEvcCfgStatusTimeStamp	1.3.6.1.4.1.6527.3.1.2.68.1.2.1.5	TimeStamp	read-only	The value of tmnxElmiEvcCfgStatusTimeStamp indicates the time, since system startup, when the tmnxElmiEvcCfgStatus changed state.
tmnxElmiStatistics	1.3.6.1.4.1.6527.3.1.2.68.2
tmnxElmiStatTable	1.3.6.1.4.1.6527.3.1.2.68.2.1		not-accessible	The tmnxElmiStatTable has an entry for each entry in the tmnxElmiIfConfigEntry.
tmnxElmiStatEntry	1.3.6.1.4.1.6527.3.1.2.68.2.1.1		not-accessible	The Statistics Entry for an E-LMI Configuration Entry. Entries cannot be created and deleted via SNMP SET operations. Rows in this table are created and destroyed by the system, and can not be created or deleted by SNMP SET operations. Each row references an existing tmnxElmiIfConfigEntry row entry.
TIM tmnxElmiStatRxStatusEnqMsgTime	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.1	TimeStamp	read-only	The value of tmnxElmiStatRxStatusEnqMsgTime indicates the time, since system startup, of the last received ELMI Status Enquiry message.
C32 tmnxElmiStatRxStatusEnqMsgsEx	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.2	Counter32	read-only	The value of tmnxElmiStatRxStatusEnqMsgs indicates the number of ELMI Status Enquiry messages received on this Ethernet interface.
C32 tmnxElmiStatStatusEnqMsgTimeouts	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.3	Counter32	read-only	The value of tmnxElmiStatStatusEnqMsgTimeouts indicates the number of times the ELMI agent did not receive a Status Enquiry message within the allotted time.
TIM tmnxElmiStatTxStatusMsgTime	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.4	TimeStamp	read-only	The value of tmnxElmiStatTxStatusMsgTime indicates the time, since system startup, of the last transmitted ELMI Status message.
C32 tmnxElmiStatTxStatusMsgs	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.5	Counter32	read-only	The value of tmnxElmiStatTxStatusMsgs indicates the number of ELMI Status messages transmitted on this Ethernet interface.
TIM tmnxElmiStatRxStatusCheckTime	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.6	TimeStamp	read-only	The value of tmnxElmiStatRxStatusCheckTime indicates the time, since system startup, of the last received ELMI Status Check message.
TIM tmnxElmiStatTxStatusCheckTime	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.7	TimeStamp	read-only	The value of tmnxElmiStatTxStatusCheckTime indicates the time, since system startup, of the last transmitted ELMI Status Check message.
C32 tmnxElmiStatDiscardedMsgs	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.8	Counter32	read-only	The value of tmnxElmiStatDiscardedMsgs indicates the number of times the ELMI agent discarded a received message because it wasn't expecting it, the type of message was incorrect, or the contents of the message were invalid.
C32 tmnxElmiStatInvRxSeqNumMsgs	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.9	Counter32	read-only	The value of tmnxElmiStatInvRxSeqNumMsgs indicates the number of times the ELMI agent received a message with an invalid receive sequence number: i.e. a sequence number that does not match the last transmitted sequence number of the agent.
C32 tmnxElmiStatTxAsyncStatusMsgs	1.3.6.1.4.1.6527.3.1.2.68.2.1.1.10	Counter32	read-only	The value of tmnxElmiStatTxAsyncStatusMsgs indicates the number of single EVC Asynchronous Status messages transmitted.
tmnxElmiNotifyPrefix	1.3.6.1.4.1.6527.3.1.3.68
tmnxElmiNotifications	1.3.6.1.4.1.6527.3.1.3.68.0
NTF tmnxElmiIfStatusChangeEvent	1.3.6.1.4.1.6527.3.1.3.68.0.1			The tmnxElmiIfStatusChangeEvent notification indicates that the Ethernet LMI Interface has changed state.
NTF tmnxElmiEVCStatusChangeEvent	1.3.6.1.4.1.6527.3.1.3.68.0.2			The tmnxElmiEVCStatusChangeEvent notification indicates that the indicated Ethernet Virtual Connection (EVC) has changed its active state (ie. from not active to active). The notification is suppressed when the tmnxElmiIfCfgMode is set to 'none (0)'.

RFC description

Vendor-private MIB for Nokia (formerly Alcatel-Lucent) TiMOS; manages Ethernet Local Management Interface (ELMI) operational state.

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