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• The MIPs of MD_B are designed on Device C, and are configured on all ports. You should configure
the MIP generation rule as default.
• Configure CC to monitor the connectivity among all the MEPs in MD_A and MD_B. Configure LB to
locate link faults, and use the AIS function to suppress the error alarms reported.
• After the status information of the entire network is obtained, use LT, LM, one-way DM, two-way DM,
and TST to detect link faults.
Figure 6 Network diagram
Configuration procedure
1. Configure a VLAN and assign ports to it:
On each device shown in Figure 6, c
reate VLAN 100 and assign ports GigabitEthernet 1/0/1
through GigabitEthernet 1/0/4 to VLAN 100.
2. Enable CFD:
# Enable CFD on Device A.
<DeviceA> system-view
[DeviceA] cfd enable
Enable CFD on Device B through Device E using the same method.
3. Configure service instances:
# Create MD_A (level 5) on Device A, create MA_A, which serves VLAN 100, in MD_A, and
create service instance 1 for MD_A and MA_A.
[DeviceA] cfd md MD_A level 5
[DeviceA] cfd ma MA_A md MD_A vlan 100
[DeviceA] cfd service-instance 1 md MD_A ma MA_A
Configure Device E as you configure Device A.
# Create MD_A (level 5) on Device B, create MA_A that serves VLAN 100, in MD_A, and then
create service instance 1 for MD_A and MA_A. In addition, create MD_B (level 3) and MA_B that
serves VLAN 100, in MD_B, and then create service instance 2 for MD_B and MA_B.
[DeviceB] cfd md MD_A level 5
[DeviceB] cfd ma MA_A md MD_A vlan 100
[DeviceB] cfd service-instance 1 md MD_A ma MA_A
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