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• Example: Configuring Ethernet CFM on Physical Interfaces    

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• Example: Configuring Ethernet CFM over VPLS
• Example: Configuring Ethernet CFM on Bridge Connections

Example: Configuring Ethernet CFM on Physical Interfaces

CFM can be used to monitor the physical link between two routers. This functionality is similar to that supported by theIEEE 802.3ah LFM protocol.

Note: The configurations in this example are only partial examples of complete and functional router configurations. Do not copy these configurations and use them directly on an actual system.

In the following example, two routers (Router 1 and Router 2) are connected by a point-to-point Gigabit Ethernet link. The link between these two routers is monitored using CFM. This is shown in Figure 1. The single boundary is a “down mep” in CFM terminology.

The configuration on Router 2 mirrors that on Router 1.