H3C S5120-EI Series, Operation Manual

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1-14
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 1-6 , enable LB on Device A so that Device A can send LBM messages to MEPs on
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 1-6 , enable LT on Device A so that Device A can send LTM messages to the MEP on
Device D.
Configuration procedure
# Configure Device A
<DeviceA> system-view
[DeviceA] cfd linktrace service-instance 1 mep 1001 target-mep 4002