Procedure 16-4.9: OAM PM on-demand delay measurement (DM) responder
Overview
Use this procedure to request the local MEP to respond to a remote Delay Measurement session for a particular Class of Service with timestamps needed by the remote MEP. This is independent of a local DM session for the same MEP and Class of Service.
Generally a responder is needed for a DM session initiated by a remote MEP when there is not a local proactive DM session for the same MEP and priority. In that case, configuring a responder allocates DM resources to this function.
Before you begin
Refer to the following restrictions:
-
On-demand DM is available only when ethoam pm is enabled.
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On-demand DM can be configured on only one Up-MEP for a particular VID, MD level, and priority, and on only one Down-MEP for a particular VID, MD level, and priority and port (and only on a port which has ethoam pm enabled). You cannot enable a DM responder on both an Up and Down MEP having the same VID, MD level, and priority.
-
A DM responder may be configured simultaneously with either proactive or on-demand DM, but it must be on the same MEP.
Step
1 |
From the Navigation menu, select Service OA&M → Loss Measurement → On-Demand DM Responder Configuration to configure on-demand delay measurement responder. Equivalent CLI command: ethoam on-demand-dm-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 DM Responder Configuration window displays current settings. |
2 |
Enter the parameters as required. See On-demand delay measurement responder parameters. Click Submit to execute the command. Click Delete to delete the responder. End of steps |
On-demand delay measurement responder parameters
|
Parameter |
Description |
CLI command |
|---|---|---|
|
MD Name |
The MD name of the Responder for a remote On-Demand DM session. |
ethoam on-demand-dm-responder md <MDname> |
|
MA Name |
The MA name of the Responder for a remote On-Demand DM 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-dm-responder ma <MAname> |
|
SourceMEPID / Create |
The MEP ID of the Responder for a remote On-Demand DM session. This is a drop-down list containing all MEPs in the above selected MD/MA. |
ethoam on-demand-dm-responder mep <sourceMEPID> |
|
Priority |
The priority of the DMM 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-dm-responder priority <priority-value> |