Method, system and device for processing failure

Details Method, system and device for processing failure Method, system and device for processing failure

2008-12-09

2011-10-18

Wong, Warner (Department: 2471)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S252000, C370S255000

Reexamination Certificate

active

08040793

ABSTRACT:
A method, a system, and a device for processing failure is provided; the method is applicable to a label switched path (LSP) including a first node, a second node, and at least one third node. The first node and the second node are adjacent nodes suffering communication breakdown. The first node restarts. The third node is a normal node closest to the restarted first node. When the communication between the first node and the second node is broken, the third node maintains control state information of the LSP in certain time. When the communication between the first node and the second node is recovered in the certain time, the first node, the second node, and the third node recover the control state information of the LSP. A failure processing system and a device on LSP are further provided. Therefore, when several nodes on the LSP suffer communication failures, the LSP can be reliably recovered.

REFERENCES:
patent: 6950427 (2005-09-01), Zinin
patent: 7248579 (2007-07-01), Friedman
patent: 7639680 (2009-12-01), Roy et al.
patent: 7680028 (2010-03-01), Zamfir et al.
patent: 7830786 (2010-11-01), Atlas et al.
patent: 7881184 (2011-02-01), Owens et al.
patent: 7940647 (2011-05-01), Zhang
patent: 7969865 (2011-06-01), Nonaka
patent: 7969866 (2011-06-01), Khan et al.
patent: 7978594 (2011-07-01), Kodialam et al.
patent: 2002/0181409 (2002-12-01), Shen
patent: 2003/0169684 (2003-09-01), Yamanaka et al.
patent: 2003/0193890 (2003-10-01), Tsillas et al.
patent: 2005/0170438 (2005-08-01), Chan-Hui et al.
patent: 2005/0259570 (2005-11-01), Hayashi et al.
patent: 2006/0013127 (2006-01-01), Izaiku et al.
patent: 2006/0159009 (2006-07-01), Kim et al.
patent: 2006/0250951 (2006-11-01), Ueda et al.
patent: 2007/0053359 (2007-03-01), Wu et al.
patent: 2007/0280140 (2007-12-01), Venketesan et al.
patent: 1492601 (2004-04-01), None
patent: 1567844 (2005-01-01), None
patent: 1567844 K1 (2005-01-01), None
patent: 1801802 (2006-07-01), None
European Patent Office, Examination Report in European Application No. 07720767.8 (May 18, 2010).
Awduche et al., “RSVP-TE: Extensions to RSVP for LSP Tunnels,”IETF Standard, Internet Engineering Task Force, 1-61 (Dec. 1, 2001) rfc3209.txt.
Berger et al., “Generalized Multi-Protocol Label Switching (GMPLS) Signaling Resource Reservation Protocol-Traffic Engineering (RSVP-TE) Extensions,”IETF Standard, Internet Engineering Task Force, 1-42 (Jan. 1, 2003) rfc3473.txt.
Satyanarayan et al., “Extensions to GMPLS RSVP Graceful Restart,”IETF Standard-Working-Draft, Internet Engineering Task Force, ccamp(5): 1-24 (Oct. 1, 2005) draft-ietf-ccamp-rsvp-restart-ext-05.txt.
Weilian et al., “Mechanism of Multiple Adjacent Nodes RSVP Graceful Restart Simultaneously,”IETF Standard-Working-Draft, Internet Engineering Task Force, 1-11 (Nov. 20, 2005) draft-jian-ccamp-multinodes-rsvp-restart-00.txt.
European Patent Office, Second Examination Report in European Patent Application No. 07720767.8 (Mar. 19, 2009).
State Intellectual Property Office of the People's Republic of China, First Examination Report in Chinese Patent Application No. 200610092914.0 (Feb. 6, 2009).
State Intellectual Property Office of the People's Republic of China, Written Opinion of the International Searching Authority in International Patent Application No. PCTCN2007/001194 (Jul. 26, 2007).
Tempest et al., “RSVP-TE failure recovery (resynchronization after failure),” The Internet Society, Internet Engineering Task Force, Internet Draft, 1-10 (Jul. 2001).
Braden et al., “RFC 2205—Resource ReSerVation Protocol (RSVP)—Version 1 Functional Specification,” Sep. 1997, Network Working Group, Geneva, Switzerland.

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