Procedure 16-4.5: OAM PM on-demand loss measurement (LM) responder
Overview
Use this procedure to configure the local MEP to respond to a remote on-demand Loss Measurement session for a particular Class of Service with measurement counts needed by the remote MEP.
Generally a responder is needed for an on-demand LM session initiated by a remote MEP unless a proactive LM session, which includes the responder function, is enabled for the same VID and CoS on the MEP. Configuring a responder allocates LM counter resources to this function. The same resources are used by a local on-demand LM session so they only count once towards the resource limit.
Before you begin
Refer to the following restrictions:
-
On-demand LM is available only when ethoam pm is enabled.
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On-demand LM can be configured on only one Up-MEP for a particular VID and priority, and on only one Down-MEP for a particular VID and priority and port (and only on a port which has ethoam pm enabled). You cannot enable an on-demand LM responder on both an Up and Down MEP having the same VID and priority.
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You can enable an on-demand LM responder simultaneously with on-demand LM and proactive LM, for the same VID and priority, but they must all be on the same MEP.
Step
1 |
From the Navigation menu, select Service OA&M → Loss Measurement → On-Demand LM Responder Configuration to configure on-demand loss measurement responder. Equivalent CLI command: ethoam on-demand-lm-responder. Refer to the Alcatel-Lucent 1850 Transport Service Switch (TSS-5) Command Line Interface Guide for a complete description of this command and related parameters. Result: The On-Demand LM Responder Configuration window displays current settings. |
2 |
Enter the parameters as required. See On-demand loss measurement responder parameters. Click Submit to execute the command. Click Delete to delete the responder. End of steps |
On-demand loss measurement responder parameters
|
Parameter |
Description |
CLI command |
|---|---|---|
|
MD Name |
The MD name of the Responder for a remote On-Demand LM session. |
ethoam on-demand-lm-responder md <MDname> |
|
MA Name |
The MA name of the Responder for a remote On-Demand LM session. This is a drop-down list containing all MAs in the above selected MD. The drop-down list contains all MAs, which do NOT have their CCM Interval set under 1 second, in the selected MD. |
ethoam on-demand-lm-responder ma <MAname> |
|
SourceMEPID / Create |
The MEP ID of the Responder for a remote On-Demand LM session. This is a drop-down list containing all MEPs in the above selected MD/MA. |
ethoam on-demand-lm-responder mep <sourceMEPID> |
|
Priority |
The priority of the LMM frames carrying the LM information, and the Class of Service being measured. Valid values: an integer in the range of 0 to 7. |
ethoam on-demand-lm-responder priority <priority-value> |