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:
Aug. 18, 2015

Filed:

Sep. 17, 2013
Applicants:

Kannan Jayaraman, Karnataka, IN;

Samer Salam, Vancouver, CA;

Shwetha Subray Bhandari, Karnataka, IN;

Jose A. Liste, Sunnyvale, CA (US);

Inventors:

Kannan Jayaraman, Karnataka, IN;

Samer Salam, Vancouver, CA;

Shwetha Subray Bhandari, Karnataka, IN;

Jose A. Liste, Sunnyvale, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04W 40/02 (2009.01);
U.S. Cl.
CPC ...
H04W 40/02 (2013.01);
Abstract

In one embodiment, a packet switching device receives a notification that a link has a diminished packet transport capacity. In response, the packet switching devices changes forwarding information for a portion of the packet traffic being sent over the diminished packet transport capacity link to traverse one or more reroute paths not including the diminished link, while some packet traffic continues to use the diminished packet transport capacity link. This notification can be received directly from a communications device, or via a routing protocol such as for a remote link that sent packet traffic may traverse. These rerouted paths may be precomputed and installed in forwarding data structures for fast rerouting, or computed and installed in response to receiving the notification. In one embodiment, quality of service (QoS) is adjusted in response to receiving the notification.


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