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. 01, 2015

Filed:

Jan. 10, 2012
Applicants:

Stefan Olofsson, Dubai, AE;

Pradosh Mohapatra, Fremont, CA (US);

Pranav Piyushbhai Mehta, San Jose, CA (US);

Arjun Sreekantaiah, Santa Clara, CA (US);

Inventors:

Stefan Olofsson, Dubai, AE;

Pradosh Mohapatra, Fremont, CA (US);

Pranav Piyushbhai Mehta, San Jose, CA (US);

Arjun Sreekantaiah, Santa Clara, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/707 (2013.01); H04L 12/751 (2013.01); H04L 12/715 (2013.01); H04L 12/703 (2013.01); H04L 12/721 (2013.01);
U.S. Cl.
CPC ...
H04L 45/22 (2013.01); H04L 45/02 (2013.01); H04L 45/04 (2013.01); H04L 45/28 (2013.01); H04L 45/70 (2013.01);
Abstract

In one embodiment, a packet switching device determines backup forwarding paths based on route distinguisher correlation values. A route distinguisher correlation value is some value associated with multiple routes, which allows a packet switching device to consider routes associated with a same route distinguisher correlation value, but having different route distinguishers and a same prefix to be considered as going to a same destination. Examples of route distinguisher correlation value used in one embodiment include, but are not limited to: scalar values, a route distinguisher of a different route, a virtual private network associated with a different route; a route target associated with the a different route; or a Border Gateway Protocol (BGP) Next-hop address associated with a different route.


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