3Com S7906E Configuration Manual page 2237

Figure 1-7 Network diagram of MD and MP configuration
Configuration procedure
1) Configure Device B
<DeviceB> system-view
[DeviceB] cfd mip-rule explicit service-instance 1
2) Configure Device C
<DeviceC> system-view
[DeviceC] cfd mip-rule default service-instance 2
After the above operation, you can use the display cfd mp command to verify your configuration.
Configuring LB on MEPs
Network requirements
Use the LB function to trace the fault source after CC detects a link fault.
As shown in Figure
Device D.
Configuration procedure
# Configure Device A
<DeviceA> system-view
[DeviceA] cfd loopback service-instance 1 mep 1001 target-mep 4002
Configuring LT on MEPs
Network requirements
Use the LT function to find the path and locate the fault after you obtain the state of the entire network
through the CC.
As shown in Figure
Device D.
Configuration procedure
# Configure Device A
<DeviceA> system-view
1-6, enable LB on Device A so that Device A can send LBM messages to MEPs on
1-6, enable LT on Device A so that Device A can send LTM messages to the MEP on
1-15