公开(公告)号：US09860080B2

公开(公告)日：2018-01-02

申请号：US15053835

申请日：2016-02-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenting Wang ,  Haibo Wang

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/761 ,  H04L12/66 ,  H04L12/703 ,  H04L12/721

CPC classification number: H04L12/4641 ,  H04L12/2859 ,  H04L12/66 ,  H04L45/16 ,  H04L45/28 ,  H04L45/68

Abstract: Provided are a method and device for implementing hierarchical virtual private LAN service, the method comprising: acquiring the group attribute information of at least one remote provider edge (PE), each group attribute information carrying a group identifier of the corresponding remote PE; according to the group identifier of each PE, determining a pseudo wire (PW) group where a PW between PEs belongs, the PW group comprising a horizontal split group or a redundancy protection group; according to the PW group, determining a service forwarding path, thus solving the problem of a complex configuration process and high cost in the implementation of HVPLS via BGP-AD; in addition, when a network topology changes, the PW between the remote PEs is automatically added to the corresponding horizontal split group or the redundancy protection group without any configuration change or static addition, that is, without manual configuration.