US 11,658,905 B2
Routing control method, device, and system
Peng Zhou, Shenzhen (CN); Yi Xiong, Shanghai (CN); Shunwan Zhuang, Beijing (CN); and Changjiang Yan, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Aug. 5, 2020, as Appl. No. 16/985,695.
Application 16/985,695 is a continuation of application No. 15/862,918, filed on Jan. 5, 2018, granted, now 10,764,173.
Application 15/862,918 is a continuation of application No. PCT/CN2015/083410, filed on Jul. 6, 2015.
Prior Publication US 2020/0366600 A1, Nov. 19, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/44 (2022.01); H04L 45/64 (2022.01); H04L 45/02 (2022.01); H04L 45/00 (2022.01); H04L 47/125 (2022.01)
CPC H04L 45/44 (2013.01) [H04L 45/02 (2013.01); H04L 45/04 (2013.01); H04L 45/38 (2013.01); H04L 45/64 (2013.01); H04L 47/125 (2013.01); H04L 45/54 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A controller, comprising:
a communications interface;
a processor; and
a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions to:
determine a first border router (BR), wherein the first BR belongs to a first autonomous system (AS) and belongs to an inter-domain topology between BRs of the first AS and a second AS; and
cause the communications interface to send a routing control message to the first BR, wherein the routing control message comprises an operation manner and wherein the operation manner comprises an AS quantity, wherein the routing control message instructs the first BR to, when advertising a second Border Gateway Protocol (BGP) routing message to the second AS, process the BGP routing message according to the operation manner, wherein the operation manner instructs the first BR to add a sequence of AS numbers of the AS quantity to an AS-path attribute value.