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:
Sep. 30, 2014

Filed:

Jul. 27, 2011
Applicants:

Arivu Ramasamy, San Jose, CA (US);

Martin Cieslak, Northville, MI (US);

Zachary Seils, Austin, TX (US);

Natarajan Chidambaram, San Jose, CA (US);

Abdolreza Saadat, San Jose, CA (US);

Inventors:

Arivu Ramasamy, San Jose, CA (US);

Martin Cieslak, Northville, MI (US);

Zachary Seils, Austin, TX (US);

Natarajan Chidambaram, San Jose, CA (US);

Abdolreza Saadat, San Jose, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); H04L 12/705 (2013.01);
U.S. Cl.
CPC ...
H04L 45/18 (2013.01);
Abstract

Techniques are provided to detect and correct for packet loops associated with network traffic that passes through a wide-area application services (WAAS) device in a data center network environment. The WAAS device receives a packet from a device in a first data center. The WAAS device determines the directionality of the packet relative to a destination device of the packet. The WAAS device also determines whether the packet has an indicator that associates the packet with the WAAS device. Based on whether the packet has an indicator that associates the packet with the wide area application services device, the WAAS device inserts an indicator within the packet when the directionality of the packet indicates that the packet is to be transmitted across a wide area network (WAN), wherein the indicator comprises information that associates the packet with the WAAS device. The WAAS device forwards the packet to a network based on its directionality.


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