30[DeviceB] cfd mip-rule explicit service-instance 1# Configure the MIP generation rule in service instance 2 on Device C as default.[DeviceC] cfd mip-rule default service-instance 26. Configure CC:# On Device A, enable the sending of CCM frames for MEP 1001 in service instance 1 onGigabitEthernet 1/0/1.[DeviceA] interface gigabitethernet 1/0/1[DeviceA-GigabitEthernet1/0/1] cfd cc service-instance 1 mep 1001 enable[DeviceA-GigabitEthernet1/0/1] quit# On Device B, enable the sending of CCM frames for MEP 2001 in service instance 2 onGigabitEthernet 1/0/3.[DeviceB] interface gigabitethernet 1/0/3[DeviceB-GigabitEthernet1/0/3] cfd cc service-instance 2 mep 2001 enable[DeviceB-GigabitEthernet1/0/3] quit# On Device D, enable the sending of CCM frames for MEP 4001 in service instance 2 onGigabitEthernet 1/0/1. Enable the sending of CCM frames for MEP 4002 in service instance 1on GigabitEthernet 1/0/3.[DeviceD] interface gigabitethernet 1/0/1[DeviceD-GigabitEthernet1/0/1] cfd cc service-instance 2 mep 4001 enable[DeviceD-GigabitEthernet1/0/1] quit[DeviceD] interface gigabitethernet 1/0/3[DeviceD-GigabitEthernet1/0/3] cfd cc service-instance 1 mep 4002 enable[DeviceD-GigabitEthernet1/0/3] quit# On Device E, enable the sending of CCM frames for MEP 5001 in service instance 1 onGigabitEthernet 1/0/4.[DeviceE] interface gigabitethernet 1/0/4[DeviceE-GigabitEthernet1/0/4] cfd cc service-instance 1 mep 5001 enable[DeviceE-GigabitEthernet1/0/4] quit7. Configure AIS:# Enable AIS on Device B, and configure the AIS frame transmission level as 2 and AIS frametransmission interval as 1 second in service instance 2.[DeviceB] cfd ais enable[DeviceB] cfd ais level 5 service-instance 2[DeviceB] cfd ais period 1 service-instance 2Verifying the configuration1. Verify the LB function:When the CC function detects a link fault, use the LB function to locate the fault.# Enable LB on Device A to examine the status of the link between MEP 1001 and MEP 5001 inservice instance 1.[DeviceA] cfd loopback service-instance 1 mep 1001 target-mep 5001Loopback to 0010-FC00-6515 with the sequence number start from 1001-43404:Reply from 0010-FC00-6515: sequence number=1001-43404 time=5msReply from 0010-FC00-6515: sequence number=1001-43405 time=5msReply from 0010-FC00-6515: sequence number=1001-43406 time=5msReply from 0010-FC00-6515: sequence number=1001-43407 time=5msReply from 0010-FC00-6515: sequence number=1001-43408 time=5ms