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:
Jun. 06, 2017

Filed:

Mar. 14, 2012
Applicants:

Patrice Bellagamba, Saint-Raphaël, FR;

Nash Darukhanawalla, Fremont, CA (US);

Inventors:

Patrice Bellagamba, Saint-Raphaël, FR;

Nash Darukhanawalla, Fremont, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/703 (2013.01); H04L 12/701 (2013.01); H04W 40/24 (2009.01);
U.S. Cl.
CPC ...
H04L 45/28 (2013.01); H04L 45/00 (2013.01); H04W 40/246 (2013.01);
Abstract

In one embodiment, a plurality of first connections each couple a first distribution node of a first site to a respective access device. A second connection between the first distribution node and a first edge router is configured to not forward traffic associated with a first set of virtual local area networks (VLANs). It is determined whether the second distribution node is reachable from the first distribution node through the first edge router and a second edge router. The second distribution node is configured to forward traffic associated with the first set of VLANs to the second edge router. In response to a determination that the second distribution node is unreachable, the second connection is configured to forward traffic associated with the first set of VLANs. Traffic associated with the first set of one or more VLANs may be forwarded across the second connection to the first edge router.


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