Troubleshooting Guide

Name Description
This field appears only for VSP 4000 Series.
Bmac Displays the B-MAC address of the node.
This field appears only for VSP 4000 Series.
Cmac Displays the C-MAC address of the node.
This field appears only for VSP 4000 Series.
Configuring autogenerated CFM on C-VLANs
This procedure applies only to VSP 4000 Series.
Use this procedure to configure the autogenerated CFM MEP and MIP level for every C-VLAN on
the chassis.
To configure autogenerated CFM on SPBM B-VLANs, see Configuring autogenerated CFM on
SPBM B-VLANs on page 184.
Important:
CFM supports one MEP or MIP on each C-VLAN. Only autogenerated CFM provides support
for configuring MEP and MIPs on C-VLANs. You cannot explicitly configure C-VLANs.
About this task
When you enable this feature, you create a global MD (named cmac) for all the customer MAC (C-
MAC) MEPs. This MD has a default maintenance level of 4, which you can change with the level
attribute. The autogenerated CFM commands also create an MA for each C-VLAN, a MEP for each
C-VLAN, and associate the MEP with the corresponding C-VLAN and a MIP with the C-VLAN.
All the MEPs that the device creates use the MEP ID configured under the global context, which has
a default value of 1. The device automatically associates the MEPs with the C-VLANs configured.
The MIP level maps to the global level. The device automatically associates the MIP level with the
C-VLANs configured when you enable the feature.
The feature is disabled by default.
Procedure
1. From the navigation tree, expand the following folders: Configuration > Edit > Diagnostics.
2. Click CFM.
3. Click the Global tab.
4. Select enable next to CmacAdminState.
5. In the fields provided, specify a maintenance level and a MEP ID.
6. Click Apply.
CFM Global field descriptions
Use the data in the following table to configure the global MEP and MIP parameters.
Operations and Management
January 2017 Troubleshooting 186
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