Summary

This Recommendation provides mechanisms for user-plane OAM (Operation and Maintenance) functionalityin MPLS networks according to the requirements and principles given in ITU-T Rec. Y.1710. OAM functions specified in this Recommendation can be applied to both non-PHP and PHP cases unless otherwise stated. This Recommendation is designed primarily to support point-to-point and multipoint-to-point explicit routed LSPs (ER-LSPs).