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. 08, 2020

Filed:

Jul. 25, 2016
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

V. S. Jagannadham (Jack) Jonnalagadda, Menlo Park, CA (US);

Sajjad Ahmed, Cupertino, CA (US);

Antoni Przygienda, Sunnyvale, CA (US);

Pramodh D'Souza, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/703 (2013.01); H04L 12/46 (2006.01); H04L 12/715 (2013.01); H04L 12/721 (2013.01); H04L 12/707 (2013.01); H04L 12/723 (2013.01); H04L 29/12 (2006.01); H04L 12/761 (2013.01);
U.S. Cl.
CPC ...
H04L 45/28 (2013.01); H04L 12/4641 (2013.01); H04L 45/22 (2013.01); H04L 45/32 (2013.01); H04L 45/507 (2013.01); H04L 45/64 (2013.01); H04L 45/66 (2013.01); H04L 61/6077 (2013.01); H04L 45/16 (2013.01);
Abstract

Methods and apparatuses for fast convergence in Layer 2 overlay network are described. Forwarding of Layer 2 (L2) traffic addressed to one or more remote L2 destinations is performed according to a remote L2 (RL2) instance, where the RL2 instance identifies a primary path for forwarding the traffic towards the remote L2 destinations, and a provider edge service label (PESL) instance associated with a broadcast domain including one or more network devices for forwarding the L2 traffic towards the L2 destination, and where the PESL instance is identified with a unique immutable PESL instance label. In response to a network event, an update of the RL2 instance is performed. The update results in an update of a data plane for forwarding the L2 traffic without necessitating an update of forwarding table entries for each one of the one or more remote L2 destination.


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