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:
Jul. 19, 2016

Filed:

Aug. 16, 2013
Applicant:

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

Inventors:

Satya Ranjan Mohanty, Sunnyvale, CA (US);

John E. Drake, Pittsburgh, PA (US);

Manish Gupta, Santa Clara, CA (US);

Nadeem Mohammad, Wilmington, MA (US);

Wen Lin, Andover, MA (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/703 (2013.01); H04L 12/753 (2013.01); H04L 12/721 (2013.01); H04L 12/707 (2013.01); H04L 12/46 (2006.01);
U.S. Cl.
CPC ...
H04L 45/28 (2013.01); H04L 12/4625 (2013.01); H04L 45/44 (2013.01); H04L 45/48 (2013.01); H04L 45/22 (2013.01);
Abstract

In general, techniques are described for performing a mass withdrawal of media access control (MAC) addresses using a reduced number of route withdrawal messages within a singly-homed segment of an Ethernet Virtual Private Network (EVPN). The techniques may include determining a segment identifier of the segment and sending a route advertisement to advertise a route for the segment identifier to a provider edge network device. The techniques may include sending a route advertisement to advertise one or more media access control (MAC) routes for the layer two segment. The techniques may also include, responsive to determining a link failure between a first provider edge network device and a customer edge network device, sending a withdrawal message to the second provider edge network device for the route associated with the segment identifier to withdraw all of the plurality of MAC routes at the second provider edge network device.


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