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1. (WO2018099309) ROUTE DETECTION METHOD AND NETWORK DEVICE

Pub. No.:    WO/2018/099309    International Application No.:    PCT/CN2017/112518
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Fri Nov 24 00:59:59 CET 2017
IPC: H04L 12/26
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: XU, Haijun
徐海军
ZHUANG, Shunwan
庄顺万
WANG, Haibo
王海波
Title: ROUTE DETECTION METHOD AND NETWORK DEVICE
Abstract:
The present application discloses a route detection method and a network device. The method comprises: a first network device establishing a first BMP session with a second network device, and the first network device establishing a second BMP session with a third network device; the first network device receiving, via the first BMP session, a first BGP route set sent by the second network device, the first BGP route set comprising a BGP route sent by the second network device to the third network device, and a BGP neighbor relationship being established between the third network device and the second network device; the first network device receiving, via the second BMP session, a second BGP route set sent by the third network device, the second BGP route set comprising the BGP route received by the third network device from the second network device; upon detecting that the first BGP route exists in the second BGP route set and the first BGP route does not exist in the first BGP route set, the first network device determining that the first BGP route is an unavailable route. With this method, the first network device can detect the validity of BGP route information.