Dual-ended frame-loss measurement is a form of proactive OAM for performance monitoring and is useful for fault management.
Note
ExtremeXOS does not support dual-ended frame-loss measurement.
MEPs send periodic dual-ended frames with frame-loss measurement information to peer MEPs in a point-to-point MD. Each MEP terminates the dual-ended frames with frame-loss measurement information and makes the near-end and far-end loss measurements. Near-end frame loss refers to frame loss associated with ingress data frames, while far-end frame loss refers to frame loss associated with egress data frames. This function is used for performance monitoring at the same priority level as used for CCM.
The protocol data unit (PDU) for dual-ended frame-loss measurement information is Continuity Check Message (CCM).
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