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:
Mar. 02, 2010
Filed:
Mar. 07, 2005
Sumandra Majee, San Jose, CA (US);
Anurag Kahol, Fremont, CA (US);
Alexander Waterman, Los Gatos, CA (US);
Anh Nguyen, Cupertino, CA (US);
Patrick Tate, Atlanta, GA (US);
Martin Grimm, Seattle, WA (US);
Sumandra Majee, San Jose, CA (US);
Anurag Kahol, Fremont, CA (US);
Alexander Waterman, Los Gatos, CA (US);
Anh Nguyen, Cupertino, CA (US);
Patrick Tate, Atlanta, GA (US);
Martin Grimm, Seattle, WA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Network connection switchover is accomplished through a method comprising receiving information defining a first connection between a first network device and a computer; establishing a replication channel between the first network device and a backup device; storing backup control information at the backup device; communicating a message flow between the first network device and the computer on the first transport connection; in response to unavailability of the first network device, communicating messages on the replication channel that cause (a) establishing a second connection between the backup device and the computer; (b) continuing communication of the message flow between the backup device and the computer based on the backup control information. TCP connections, for example, can be switched from an active device to a backup device without reset or re-transmission.