公开(公告)号：US20210203561A1

公开(公告)日：2021-07-01

申请号：US17184766

申请日：2021-02-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenxia DONG ,  Jie HOU ,  Yuezhong SONG ,  Longfei DAI

IPC: H04L12/24 ,  H04L12/66 ,  H04L12/42 ,  H04L12/923

Abstract: A solution for obtaining an interior gateway protocol IGP domain through division in a network is provided. The network includes an access site link and a non-access site link. The access site link includes a link between access site devices and a link between an access site device and an aggregation site device. The non-access site link includes a link other than the access site link in the network. In this solution, a network device determines a changed access site subgraph based on a change of a network topology of the network, and obtains an IGP domain through division based on a link in the changed access site subgraph. The access site subgraph is one or more connection diagrams formed after the non-access site link is removed from the network topology. This solution can improve efficiency of IGP domain division.