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.

Date of Patent:
Jul. 14, 2015

Filed:

May. 11, 2012
Applicants:

Daniel Gilbert Moen, Sunnyvale, CA (US);

Venkataraman Natham, Fremont, CA (US);

Devendra Mohan Badhani, San Jose, CA (US);

Ali Golshan, Palo Alto, CA (US);

Inventors:

Daniel Gilbert Moen, Sunnyvale, CA (US);

Venkataraman Natham, Fremont, CA (US);

Devendra Mohan Badhani, San Jose, CA (US);

Ali Golshan, Palo Alto, CA (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 29/08 (2006.01); H04L 29/12 (2006.01);
U.S. Cl.
CPC ...
H04L 67/1002 (2013.01); H04L 61/103 (2013.01);
Abstract

A system for virtual internet protocol (VIP) address migration. The system comprises serving one or more clients connected via a switch router over a network to one or more network gateways. The switch router forwards packets to the VIP address of a first network gateway. If the first network gateway determines a VIP address migration criteria has been reached, the first network gateway may migrate any new traffic associated with a packet flow over to a second network gateway for more efficient processing by inserting a default flow code into the header of the VIP address of the packet. Older packets continue to process on the first network gateway, however new packets are forwarded and processed on the second network gateway. Once the packets being processed on the first network gateway completes, the second network gateway becomes the default network gateway for processing existing and new packets.


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