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1. (WO2018040809) METHOD, APPARATUS, SYSTEM AND DEVICE FOR P2MP MULTICAST TUNNEL PROTECTION

Pub. No.:    WO/2018/040809    International Application No.:    PCT/CN2017/094664
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Fri Jul 28 01:59:59 CEST 2017
IPC: H04L 12/707
H04L 12/911
H04L 12/927
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: ZHAI, Yu
翟宇
HE, Yibo
何益波
Title: METHOD, APPARATUS, SYSTEM AND DEVICE FOR P2MP MULTICAST TUNNEL PROTECTION
Abstract:
Provided are a method, apparatus, system and device for point to multiple point (P2MP) multicast tunnel protection. The method comprises: detecting whether a first tunnel between a first leaf node and a first root node in a multicast tree has failed; and if a failure is detected, pushing, on a second tunnel, a first landing service to the first leaf node, wherein the second tunnel is a tunnel forwarding a service through a second leaf node in the multicast tree. The technical solution of the present invention solves the problems in the related art that the cost for an operator to establish and maintain a P2MP tunnel is increased and bandwidth is wasted due to the fact that a large number of protection paths need to be established for P2MP tunnel protection, thus achieving the effects of reducing the cost for the operator to establish and maintain a P2MP tunnel and improving the network robustness.