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1. (WO2018040614) METHOD, RELATED DEVICE, AND SYSTEM FOR ESTABLISHING LABEL-SWITCHED PATH FOR VIRTUAL PRIVATE NETWORK

Pub. No.:    WO/2018/040614    International Application No.:    PCT/CN2017/084374
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Tue May 16 01:59:59 CEST 2017
IPC: H04L 12/46
H04L 12/723
H04L 12/931
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: ZHUANG, Shunwan
庄顺万
CHEN, Shuanglong
陈双龙
WU, Nan
吴楠
LI, Zhenbin
李振斌
Title: METHOD, RELATED DEVICE, AND SYSTEM FOR ESTABLISHING LABEL-SWITCHED PATH FOR VIRTUAL PRIVATE NETWORK
Abstract:
Embodiments of the present invention provide a method, a related device, and a system for establishing an LSP for a VPN. The method comprises: a first PE device receiving protection information transmitted by a second PE device, the protection information comprising a virtual next hop (vNH); and the first PE device transmitting a VPN LSP establishment message to the second PE device, the VPN LSP establishment message being configured to indicate that an LSP for a VPN is established with the vNH as an end point. In the above technical solution, the first PE device is an egress PE device for the LSP for the VPN, and the second PE device is an ingress PE device for the LSP for the VPN. According to the above technical solution, the egress PE device can establish, according to the vNH transmitted by the ingress PE device, the LSP for the VPN, avoiding excessive configuration of the egress PE to establish the LSP for the VPN.