Manual

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CE (config-if-ethernet1/0/1)#ethernet-oam remote-loopback supported
Other parameters use the default configuration.
Configuration on PE:
PE(config)#interface ethernet 1/0/1
PE (config-if-ethernet1/0/1)#ethernet-oam
Other parameters use the default configuration.
Execute the following command when using remote loopback.
PE(config-if-ethernet1/0/1)#ethernet-oam remote-loopback
Execute the following command to make one of OAM peers exiting OAM loopback after
complete detection.
PE(config-if-ethernet1/0/1)# no ethernet-oam remote-loopback
Execute the following command without supporting remote loopback.
CE(config-if-ethernet1/0/1)#no ethernet-oam remote-loopback supported
8.4 EFM OAM Troubleshooting
When using EFM OAM, it occurs the problem, please check whether the problem is resulted
by the following reasons:
Check whether OAM entities of two peers of link in passive mode. If so, EFM OAM connection
can not be established between two OAM entities.
Ensuring SNMP configuration is correct, or else errored event can not be reported to network
management system.
Link does not normally communicate in OAM loopback mode, it should cancel remote
loopback in time after detect the link performance.
Ensuring the used board supports remote loopback function.
Port should not configure STP, MRPP, ULPP, Flow Control, loopback detection functions after
it enables OAM loopback function, because OAM remote loopback function and these
functions are mutually exclusive.
When enabling OAM, the negotiation of the port will be disabled automatically. So the
negotiation in the peer of the link must be disabled, otherwise the link connection will
unsuccessful. When disabling OAM, the negotiation of the port will be restored. Therefore, to
ensure the link connection is normal, the negotiations must be accordant in two peers of the
link.
After enabling OAM, when the link negotiations in two peers are successful, the state is up.
After the fiber in RX redirection of the peer is pulled out, TX of the peer and RX with OAM are
normal, so the port with OAM will be at up state all along.