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1. (WO2018120228) METHOD AND DEVICE FOR RECOVERING FROM RING CIRCUIT FAULT, AND NODE APPARATUS

Pub. No.:    WO/2018/120228    International Application No.:    PCT/CN2016/113969
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Dec 31 00:59:59 CET 2016
IPC: H04L 29/06
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: WANG, Dehai
王德海
PU, Yun
普云
WU, Junhong
吴俊宏
Title: METHOD AND DEVICE FOR RECOVERING FROM RING CIRCUIT FAULT, AND NODE APPARATUS
Abstract:
Disclosed are a method and device for recovering from a ring circuit fault, and a node apparatus. The method comprises: when recovering from a link fault on a ring circuit, a non-faulty node apparatus on the ring circuit receiving a link recovery NR message sent by a faulty node apparatus; the non-faulty node apparatus eliminating node identifiers stored on a port of the non-faulty node apparatus that receives the NR message and on a port that does not receive the NR message; the non-faulty node apparatus learning a new node identifier when receiving an RPL owner port blocked (RB) message sent by a ring circuit protection link (RPL) owner, wherein the new node identifier is a node identifier on an RPL owner port; and, on the basis of a result indicating that the new node identifier is inconsistent with the node identifier currently saved on a port receiving the RB message, the non-faulty node apparatus deleting an address forwarding entry learned during the fault period, and re-learning the address forwarding entry.