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1. (WO2017177647) EFFICIENT LSP PROTECTION METHOD BASED ON RSVP-TE DYNAMIC TUNNEL

Pub. No.:    WO/2017/177647    International Application No.:    PCT/CN2016/102801
Publication Date: Fri Oct 20 01:59:59 CEST 2017 International Filing Date: Sat Oct 22 01:59:59 CEST 2016
IPC: H04L 12/723
H04L 12/707
H04L 12/703
H04L 12/46
Applicants: FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO., LTD
烽火通信科技股份有限公司
Inventors: DENG, Menglian
邓梦莲
GAO, Jun
高军
JIANG, Yuling
蒋玉玲
Title: EFFICIENT LSP PROTECTION METHOD BASED ON RSVP-TE DYNAMIC TUNNEL
Abstract:
An efficient LSP protection method based on an RSVP-TE dynamic tunnel, relating to the field of data and IP transmission devices. The method comprises: using a loose route constraint to establish a main LSP, and establishing a standby LSP automatically or by means of the loose route constraint, so as to form main and standby LSP protection; after a main LSP link fails, switching a service to the standby LSP, establishing a new main LSP and ensuring that paths of the new main LSP and the standby LSP do not completely overlap, and forming new main and standby LSP protection; and after a standby LSP link fails, re-establishing a new standby LSP and ensuring that paths of the new standby LSP and the main LSP do not completely overlap, and forming new main and standby LSP protection with the main LSP. According to the present invention, when main and standby LSPs both fail in a link, main-standby switching can still be performed, so that service interruption is avoided, and the efficiency of the main and standby LSP protection is improved.