TN-RMD-CFM-MIB

All MIBs › TN-RMD-CFM-MIB

Organization: Nokia

Last Updated: 2012-11-28

Category: Ethernet OAM, Nokia Carrier Ethernet

Description: Manages Nokia RMD IEEE 802.1ag CFM domain and maintenance endpoint configuration.

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What Is TN-RMD-CFM-MIB?

TN-RMD-CFM-MIB is a Nokia proprietary SNMP MIB implementing IEEE 802.1ag Connectivity Fault Management for Remote Managed Devices (RMDs), covering CFM maintenance domain/MEP configuration plus Delay Measurement (DM), Loss Measurement (LM), and Synthetic Loss Measurement (SLM) mechanisms used for Ethernet OAM SLA verification. It exposes system-wide CFM capacity limits (max MEPs, max LM priority levels), per-MEP identity data (maintenance domain index/format/name), and a local-time reference used for DM calculations. It is used to monitor the software status of Ethernet OAM/fault-management capability on the device: how many MEPs are currently configured against the maximum supported, and each MEP's maintenance-domain binding, important for confirming CFM capacity headroom and correct MEP-to-domain assignment when diagnosing a fault or SLA violation. It is explicitly built as an extension to the standard IEEE 802.1ag CFM model, so it depends directly on that base standard's MEP/MD/MA structure for full interpretation. It is deployed on Nokia-managed remote access/aggregation devices (RMDs) in carrier Ethernet networks requiring standards-based Ethernet OAM and SLA monitoring. Engineers can download the TN-RMD-CFM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in TN-RMD-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

Nokia Remote Managed Devices (RMDs) in carrier Ethernet access/aggregation networks

Monitoring Examples

An operator polls tnRmdSystemCfmTable/tnRmdSystemCfmEntry to check tnRmdSystemCfmMaxNrMeps against the number of entries in tnRmdCfmMepTable, confirming the device has not exhausted its MEP capacity before provisioning a new maintenance point. tnRmdCfmMepTable/tnRmdCfmMepEntry is checked per tnRmdCfmMepNumber/tnRmdCfmMepMdIndex to verify a given MEP is correctly bound to its maintenance domain (tnRmdCfmMepMdName), essential when a delay- or loss-measurement session unexpectedly fails to establish. tnRmdSystemCfmDmUpdateLocalTime is referenced when interpreting delay-measurement results, since DM calculations rely on this local time reference to correlate probe timestamps.

What Can Be Monitored

configured MEP count vs. max supported
per-MEP maintenance domain binding/index/format
delay/loss/synthetic-loss measurement capability
local time reference for DM

Imported Objects

From IEEE8021-CFM-MIB

Dot1agCfmCcmInterval
Dot1agCfmMDLevel
Dot1agCfmMaintAssocName
Dot1agCfmMaintAssocNameType
Dot1agCfmMaintDomainName
Dot1agCfmMaintDomainNameType
Dot1agCfmMepId
Dot1agCfmMpDirection
VlanIdOrNone

From IF-MIB

InterfaceIndexOrZero

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
RowStatus
TEXTUAL-CONVENTION
TruthValue

From TN-RMD-SYSTEM-MIB

tnRmdSystemId

OBJECT-TYPE

From TROPIC-GLOBAL-REG

tnRmdMIBModules	OBJECT-IDENTITY
tnRmdObjs	OBJECT-IDENTITY

From TROPIC-SYSTEM-MIB

tnSysSwitchId

OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
tnRmdCfmMibModule	1.3.6.1.4.1.7483.5.1.4.1			Connectivity Fault Management (EFM) MIB for Remote Managed Devices (RMDs). This MIB covers management of CFM MEPs, and of the related Delay Measurement (DM), Loss Measurement (LM) and Synthetic Loss Measurement (SLM) mechanisms.
tnRmdCfmObjects	1.3.6.1.4.1.7483.6.4.1.1
I32 tnRmdCfmAttributeTotal	1.3.6.1.4.1.7483.6.4.1.1.1	Integer32	read-only
tnRmdSystemCfmTable	1.3.6.1.4.1.7483.6.4.1.1.2		not-accessible	A table containing the general CFM data of all RMDs.
tnRmdSystemCfmEntry	1.3.6.1.4.1.7483.6.4.1.1.2.1		not-accessible	A list of objects containing the general CFM data of an RMD.
U32 tnRmdSystemCfmMaxNrMeps	1.3.6.1.4.1.7483.6.4.1.1.2.1.1	Unsigned32	read-only	The maximum number of MEPs supported by the RMD.
U32 tnRmdSystemCfmLmMaxNrPriorityLevels	1.3.6.1.4.1.7483.6.4.1.1.2.1.2	Unsigned32	read-only	The maximum number of priority levels for LM supported by the RMD.
T/F tnRmdSystemCfmDmUpdateLocalTime	1.3.6.1.4.1.7483.6.4.1.1.2.1.3	TruthValue	read-write	Setting of this object to value 'true' triggers the updating of the local time on a DM responder. After this action has completed successfully, the TxTSf field of the first DMM message received will be used to set the local time. Setting of this object to value 'false' has no effect. This object is merely used to invoke the updating of the local time, and its actual value has no meaning.
tnRmdCfmMepTable	1.3.6.1.4.1.7483.6.4.1.1.3		not-accessible	A table containing the CFM parameters of all MEPs of all RMDs.
tnRmdCfmMepEntry	1.3.6.1.4.1.7483.6.4.1.1.3.1		not-accessible	A list of objects containing the CFM parameters of a MEP of an RMD.
TNR tnRmdCfmMepNumber	1.3.6.1.4.1.7483.6.4.1.1.3.1.1	TnRmdCfmMepNumber	not-accessible	The sequence number of the MEP.
U32 tnRmdCfmMepMdIndex	1.3.6.1.4.1.7483.6.4.1.1.3.1.2	Unsigned32	read-create	The index of the MD in the dot1agCfmMdTable.
NUM tnRmdCfmMepMdFormat	1.3.6.1.4.1.7483.6.4.1.1.3.1.3	Dot1agCfmMaintDomainNameType	read-create	The type (and thereby format) of the Maintenance Domain Name.
NUM tnRmdCfmMepMdName	1.3.6.1.4.1.7483.6.4.1.1.3.1.4	Dot1agCfmMaintDomainName	read-create	The name of the domain that the RMD belongs to, the NE does not have to belong to it for more information refer to dot1agCfmMdTable.
U32 tnRmdCfmMepMaIndex	1.3.6.1.4.1.7483.6.4.1.1.3.1.5	Unsigned32	read-create	The index of the MA in the dot1agCfmMaNetTable.
NUM tnRmdCfmMepMaNetFormat	1.3.6.1.4.1.7483.6.4.1.1.3.1.6	Dot1agCfmMaintAssocNameType	read-create	The type (and thereby format) of the Maintenance Association Name.
NUM tnRmdCfmMepMaNetName	1.3.6.1.4.1.7483.6.4.1.1.3.1.7	Dot1agCfmMaintAssocName	read-create	The name of the association that the RMD belongs to, the NE does not have to belong to it for more information refer to dot1agCfmMaNetTable
DOT tnRmdCfmMepMdLevel	1.3.6.1.4.1.7483.6.4.1.1.3.1.8	Dot1agCfmMDLevel	read-create	The Maintenance Domain Level of the MEP.
TNR tnRmdCfmMepMegId	1.3.6.1.4.1.7483.6.4.1.1.3.1.9	TnRmdCfmMegId	read-create	The name string of the MEG which the MEP is part of.
DOT tnRmdCfmMepDirection	1.3.6.1.4.1.7483.6.4.1.1.3.1.10	Dot1agCfmMpDirection	read-only	The direction of the MEP.
DOT tnRmdCfmMepLocalId	1.3.6.1.4.1.7483.6.4.1.1.3.1.11	Dot1agCfmMepId	read-create	The local ID of the MEP.
T/F tnRmdCfmMepEnabled	1.3.6.1.4.1.7483.6.4.1.1.3.1.12	TruthValue	read-create	Indicates whether the MEP is enabled or disabled.
T/F tnRmdCfmMepCcmEnabled	1.3.6.1.4.1.7483.6.4.1.1.3.1.13	TruthValue	read-create	Indicates whether the MEP generates CCM messages.
T/F tnRmdCfmMepLbrEnabled	1.3.6.1.4.1.7483.6.4.1.1.3.1.14	TruthValue	read-create	Indicates whether the LoopBack Responder is enabled for the MEP.
NUM tnRmdCfmMepCcmInterval	1.3.6.1.4.1.7483.6.4.1.1.3.1.15	Dot1agCfmCcmInterval	read-create	The interval at which CCMs are sent by the MEP.
NUM tnRmdCfmMepIfIndex	1.3.6.1.4.1.7483.6.4.1.1.3.1.16	InterfaceIndexOrZero	read-create	The interface to which the MEP is related.
VLA tnRmdCfmMepVlanId	1.3.6.1.4.1.7483.6.4.1.1.3.1.17	VlanIdOrNone	read-create	The ID of the VLAN to which the MEP is related. Value 0 indicates that the MEP is VLAN unaware.
TNR tnRmdCfmMepDefect	1.3.6.1.4.1.7483.6.4.1.1.3.1.18	TnRmdCfmMepDefect	read-only	Indicates Cfm defects.
ROW tnRmdCfmMepRowStatus	1.3.6.1.4.1.7483.6.4.1.1.3.1.19	RowStatus	read-create	Used to create, delete or activate an entry in this table.
tnRmdCfmRemoteMepTable	1.3.6.1.4.1.7483.6.4.1.1.4		not-accessible	A table containing the remote MEP IDs of all MEPs of all RMDs.
tnRmdCfmRemoteMepEntry	1.3.6.1.4.1.7483.6.4.1.1.4.1		not-accessible	An object containing a remote MEP ID for a MEP of an RMD.
DOT tnRmdCfmRemoteMepId	1.3.6.1.4.1.7483.6.4.1.1.4.1.1	Dot1agCfmMepId	not-accessible	The ID of a remote MEP.
ROW tnRmdCfmRemoteMepRowStatus	1.3.6.1.4.1.7483.6.4.1.1.4.1.2	RowStatus	read-create	Used to create, delete or activate an entry in this table.

RFC description

Connectivity Fault Management (CFM) and delay/loss measurement for Nokia Remote Managed Devices.

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Download TN-RMD-CFM-MIB

What Is TN-RMD-CFM-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description