CFM/Y.1731: Ethernet synthetic loss measurement

You can trigger on-demand and proactive Operations, Administration, and Maintenance (OAM) for measurement of statistical counter values corresponding to ingress and egress synthetic frames. Frame loss is calculated using synthetic frames instead of data traffic. These counters maintain a count of transmitted and received synthetic frames and frame loss between a pair of maintenance association end points (MEPs). The Junos OS implementation of Ethernet synthetic loss measurement (ETH-SLM) is fully compliant with the ITU-T Recommendation Y.1731. Junos OS maintains various counters for ETH-SLM PDUs, which can be retrieved at any time for sessions that are initiated by a certain MEP. You can clear all the ETH-SLM statistics and PDU counters. The ETH-SLM feature provides the option to perform ETH-SLM for a given 802.1p priority; to set the size of the ETM-SLM protocol data unit (PDU); and to generate XML output. You can perform ETH-SLM in on-demand ETH-SLM mode (triggered through the CLI) or in proactive ETH-SLM mode (triggered by the iterator application). To trigger synthetic frame loss measurement (on-demand mode) and provide a run-time display of the measurement values, use the monitor ethernet synthetic-loss-measurement (remote-mac-address | mep mep-id) maintenance-domain md-name maintenance-association ma-name count frame-count wait time priority 802.1p value size xml operational mode command.