公开(公告)号：US10057159B2

公开(公告)日：2018-08-21

申请号：US15010834

申请日：2016-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Chang Wang ,  Yuanbin Ouyang ,  Fengqing Yu

IPC: H04L12/707 ,  H04L12/64 ,  H04L12/751 ,  H04L12/803

CPC classification number: H04L45/22 ,  H04L12/6418 ,  H04L45/02 ,  H04L47/122

Abstract: Embodiments of the present invention provide a route advertisement method, and controller, where the method is applied to a BGP-based routing network, a physical controller in the routing network is connected to multiple physical routers, and the method includes: receiving, by the physical controller, routing information reported by at least one physical router; obtaining a traffic path in which the at least one physical router is used as an egress router to transmit traffic to a destination router; generating a route for a physical router in the traffic path; and delivering the generated route to a corresponding physical router. In these embodiments, it is avoided that congestion occurs at an egress router, and a router that receives the traffic may generate a route for the router according to the traffic path so as to transmit the traffic to a next-hop router of the router without a need of recalculation.