The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2009
Filed:
Aug. 31, 2006
Jing Xiang, Acton, MA (US);
Shreedhar Shirgurkar, Chelmsford, MA (US);
Vladimir Senkov, Chelmsford, MA (US);
Ramin Taraz, Lexington, MA (US);
Jing Xiang, Acton, MA (US);
Shreedhar Shirgurkar, Chelmsford, MA (US);
Vladimir Senkov, Chelmsford, MA (US);
Ramin Taraz, Lexington, MA (US);
Nortel Networks Limited, St. Laurent, Quebec, CA;
Abstract
To prevent loss of packets due to failover between server systems in which a failover mechanism is provided in a first server system to enable a second server system to failover to the first server system, the first server system includes a first sequence number space that is different from a second sequence number space in the second server system. The first and second sequence number spaces are part of a total sequence number space. After failover from the second server system to the first server system, the first server system sends packets containing sequence numbers in the first sequence number space which are defined by a security protocol.