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1. (WO2017152595) METHOD AND DEVICE FOR RESPONDING TO NETWORK TOPOLOGY CHANGE

Pub. No.:    WO/2017/152595    International Application No.:    PCT/CN2016/097192
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Aug 30 01:59:59 CEST 2016
IPC: H04L 29/06
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: TANG, Chao
汤超
Title: METHOD AND DEVICE FOR RESPONDING TO NETWORK TOPOLOGY CHANGE
Abstract:
A method and a device for responding to a network topology change. The steps performed by the method at a loose node comprise: storing, in the process of establishing a resource reservation protocol-traffic engineer (RSVP-TE) tunnel, path information of the RSVP-TE tunnel obtained by calculating according to a constrained shortest path first (CSPF) algorithm; after establishing the RSVP-TE tunnel, determining, according to the path information, whether a network topology change occurs in the RSVP-TE tunnel; and if so, responding to the network topology change in the RSVP-TE tunnel.