The efm error-code notification enable command enables EFM OAM to detect and report bit errors on an interface.
The undo efm error-code notification enable command disables EFM OAM from detecting and reporting bit errors on an interface.
By default, an interface is disabled from detecting and reporting detected bit errors.
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Usage Scenario
Fault detection on an Ethernet network is difficult when the physical connection on the network is not closed but network performance deteriorates gradually. Link monitoring is used to detect link layer faults in various environments. After EFM OAM link monitoring is configured, statistics about the physical layer data of the interface management module are queried to monitor the quality of the link connected to the current interface. EFM OAM link monitoring implements the following functions:
Prerequisites
EFM OAM has been globally enabled using the efm enable command in the system view.
Configuration Impact
After a local interface is enabled to report detected bit errors, the local device generates a threshold-crossing event of bit errors and reports the event to the remote device if the number of bit errors detected on the interface reaches or exceeds the specified threshold.
Precautions
The specified threshold and period take effect only after the efm error-code notification enable command is run.
The efm error-code notification enable command takes effect only after EFM OAM is enabled on an interface. The efm error-code notification enable command can be used together with the efm error-code period and efm error-code threshold commands for bit error detection on a link.