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:
May. 28, 2013

Filed:

Jun. 30, 2010
Applicants:

Sanjiv Doshi, San Jose, CA (US);

Apurva Mehta, Cupertino, CA (US);

Jagadish Grandhi, Mountain View, CA (US);

Bin Hong, San Jose, CA (US);

Inventors:

Sanjiv Doshi, San Jose, CA (US);

Apurva Mehta, Cupertino, CA (US);

Jagadish Grandhi, Mountain View, CA (US);

Bin Hong, San Jose, CA (US);

Assignee:

Juniper Networks, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A network system includes a provider backbone bridged network (PBBN) and a multi-homed provider bridge network (PBN) having a plurality of L2 switches that operate as backboned edge bridges (BEBs) to bridges L2 packets between the PBN and the PBBN. A first one of the L2 switches is configured to bridge L2 packets from a first backbone VLAN (B-VLAN) to the PBN when a physical link of the multi-homed PBN is operational. The L2 switch is further configured to shunt the L2 packets from the first backbone VLAN to a second one of the L2 switches operating as a secondary BEB of the multi-homed PBN via a second B-VLAN when the physical link is non-operational.


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