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:
Oct. 19, 2021

Filed:

Apr. 26, 2019
Applicant:

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

Inventors:

Richard Roberts, Rennes, FR;

Anantharamu Suryanarayana, San Jose, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/751 (2013.01); H04L 12/24 (2006.01);
U.S. Cl.
CPC ...
H04L 45/02 (2013.01); H04L 41/08 (2013.01); H04L 41/0823 (2013.01);
Abstract

Techniques for avoiding single points of failure in routing components of an SDN are disclosed. In some aspects, control nodes that provide routing management services are assigned zone identifiers. The control nodes having one zone identifier can be on separate processes and/or physical hardware from control nodes having a different zone identifier. Workloads, such as virtual machines or containers, can establish routing sessions such as Border Gateway Protocol as a Service (BGPaaS) routing sessions using different zone identifiers to ensure that separate control nodes provide routing management services for the primary and secondary compute nodes associated with a high availability service. These techniques in this way facilitate high availability by ensuring that a control node is not a single point of failure for the high availability service provided by the primary and secondary compute nodes.


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