Method and network device for fast service convergence

Details Method and network device for fast service convergence Method and network device for fast service convergence

2007-06-21

2010-10-19

Nguyen, Brian D (Department: 2472)

Multiplex communications

Fault recovery

Bypass an inoperative channel

C370S244000, C370S248000

Reexamination Certificate

active

07817542

ABSTRACT:
A method and network device for fast service convergence, used for communications between Autonomous Systems, includes: presetting a route forwarding table, each forwarding table item in the forwarding table includes information of a preferred route and a secondly-preferred route; setting the status of the preferred route as unavailable in the forwarding table item after a failure is detected in the preferred route; after receiving a service packet, querying in the route forwarding table the forwarding table item corresponding to the service packet, and determining whether the status of the preferred route is available, and if yes, the service packet is forwarded through the preferred route, otherwise through the secondly-preferred route. Because the failure detection time is not longer than 30 ms, the switch time of the service packet from the preferred route to the secondly-preferred route may be within 50 ms, thereby enabling fast service convergence.

REFERENCES:
patent: 2003/0035414 (2003-02-01), Beyda
patent: 2004/0088431 (2004-05-01), Carter
patent: 2005/0005190 (2005-01-01), Ofir et al.
patent: 2005/0071502 (2005-03-01), Kamat et al.
patent: 2006/0047851 (2006-03-01), Voit et al.
patent: 2006/0062199 (2006-03-01), Yoshizawa
patent: 2006/0126502 (2006-06-01), Vasseur
patent: 2006/0221813 (2006-10-01), Scudder et al.
patent: 2006/0291391 (2006-12-01), Vasseur et al.
patent: 2007/0008982 (2007-01-01), Voit et al.
patent: 2007/0091796 (2007-04-01), Filsfils et al.
patent: 2007/0214280 (2007-09-01), Patel et al.
patent: 1933448 (2005-03-01), None
patent: 1705256 (2005-12-01), None
patent: 2005/039085 (2005-04-01), None
patent: 2006/053497 (2006-05-01), None
European Patent Office Communication pursuant to Article 94(3) EPC for Application No. 07 721 772.7, dated Sep. 14, 2009, 4pgs.
First Office Action of the State intellectual Property Office of the PRC for Application No. 200610112187.X, dated Aug. 15, 2008, 4 pgs., English translation attached.

Affiliated with

Also associated with

Rating

Method and network device for fast service convergence does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and network device for fast service convergence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and network device for fast service convergence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4193000