http://www.rfc-editor.org/rfc/rfc7456.txt
RFC 7456: Loss and Delay Measurement in Transparent Interconnection of Lots of Links (TRILL), T. Mizrahi, T. Senevirathne, S. Salam, D. Kumar, D. Eastlake 3rd2015-03-01T23:00:00-00:00Performance Monitoring (PM) is a key aspect of Operations, Administration, and Maintenance (OAM). It allows network operators to verify the Service Level Agreement (SLA) provided to customers and to detect network anomalies. This document specifies mechanisms for Loss Measurement and Delay Measurement in Transparent Interconnection of Lots of Links (TRILL) networks.