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:
Feb. 05, 2019

Filed:

Mar. 31, 2017
Applicant:

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

Inventors:

Anantharamu Suryanarayana, San Jose, CA (US);

Harshad Bhaskar Nakil, Saratoga, CA (US);

Nischal Kumar N. Sheth, Los Altos, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/751 (2013.01); H04L 12/931 (2013.01);
U.S. Cl.
CPC ...
H04L 45/02 (2013.01); H04L 49/70 (2013.01);
Abstract

In one example, a method includes by a Software Defined Networking (SDN) controller, receiving one or more virtual routes to virtual interfaces from a first virtual router agent managed by the SDN controller, the one or more virtual routes received via a messaging protocol session between the SDN controller and the first virtual router agent; storing, by the SDN controller, the one or more virtual routes to a data structure; in response to determining the messaging protocol session has closed, marking, by the SDN controller, the one or more virtual routes in the data structure as stale without deleting the one or more virtual routes from the data structure and without withdrawing the virtual routes from routing protocol peers of the SDN controller; and subsequent to marking the one or more virtual routes as stale, sending, by the SDN controller, the one or more virtual routes to a second virtual router agent.


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