公开(公告)号：US20220311698A1

公开(公告)日：2022-09-29

申请号：US17836173

申请日：2022-06-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhendong ZHANG ,  Jiaqing ZHANG ,  Gang YAN

IPC: H04L45/122 ,  H04L45/12 ,  H04L45/00 ,  H04L45/42

Abstract: This application discloses a routing loop reduction method, an apparatus, and a system. The method includes: a first network device receives a first packet, the first packet carries identifier information and a first route, and the identifier information includes a source device identifier of a device that advertises the first route or a source protocol identifier of a routing protocol to which the first route belongs. The first network device runs a first routing protocol and a second routing protocol, and the first routing protocol is different from the second routing protocol. The first network device determines, based on the identifier information, that advertising the first route to a second network device running the second routing protocol causes a routing loop.