How to Configure CFM Function on MA5800

Hello, friend! 

For details about how to configure the CFM function on the MA5800, see the following link:

Configuring the Ethernet CFM OAM 

After the configuration is complete: 

1. On the OLT or DSLAM, run the display cfm mep command to query the configuration of the MEP. It is found that the remote MEP ID and the MAC address of the MEP can be learned automatically. 

2. On the OLT or DSLAM, in ONT-ETH OAM mode, run the display cfm mep command to query the MEP configuration of a specified ONT. 

3. Disconnect the OLT from the DSLAM. The system automatically generates a CFM OAM alarm and reports the fault location and cause. 

4. Run the cfm loopback command on the OLT to enable the remote loopback function. Normally, the number of transmitted packets is the same as the number of received packets.

LT Operation Failed: LastMacAddress=0000-0000-0000, LTR-Num=0 when configuring the link-trace command, how to deal with it?

I didn't understand that. Because of the short process, I was unable to analyze the cause of the error.

The CFM configuration process is complex, but you can refer to the link for details. 

Can you tell me the reason for configuring CFM? 

Thanks!