Huawei Huawei Huawei Redundancy Protection is a generalized protection mechanism by replicating and transmitting copies of flow packets on redundancy node over multiple different and disjoint paths, and further eliminating the redundant packets at merging node. In order to support the replication behavior of redundancy protection, Redundancy Policy is used to instruct the replication of service packets and assign more than one redundancy forwarding paths. This document defines the extensions to BGP to advertise the redundancy policy.