Data Channel Status Confirmation Extensions for the Link Management Protocol

Abstract

This document defines simple additions to the Link Management Protocol (LMP) to provide a control plane tool that can assist in the location of stranded resources by allowing adjacent Label-Switching Routers (LSRs) to confirm data channel statuses and provide triggers for notifying the management plane if any discrepancies are found. As LMP is already used to verify data plane connectivity, it is considered to be an appropriate candidate to support this feature.

Link Management Protocol Behavior Negotiation and Configuration Modifications

“…In [RFC5818], the data channel consistency check behavior is defined, and the message types from 32 to 34 have been assigned by IANA for messages that provide this behavior.…”