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.
Patent No.:
Date of Patent:
May. 10, 2022
Filed:
Jun. 04, 2020
Juniper Networks, Inc., Sunnyvale, CA (US);
Anantharamu Suryanarayana, San Jose, CA (US);
Richard Roberts, Rennes, FR;
Juniper Networks, Inc., Sunnyvale, CA (US);
Abstract
This disclosure describes techniques for improving speed of network convergence after node failure. In one example, a method includes storing, by a virtual router agent of a compute node managed by a Software Defined Networking (SDN) controller, a forwarding information data structure with a shared liveness vector orthogonal to the forwarding path to indicate a liveness state of a plurality of overlay network tunnel endpoint next hops, wherein the shared liveness vector is shared by each of a plurality of members for a plurality of composite next hops that share a common list of the plurality of overlay network tunnel endpoint next hops; and in response to determining, by the virtual router agent, that the orthogonal liveness vector indicates that each of the plurality of overlay network tunnel endpoint next hops are reachable, distributing network traffic to one or more of the plurality of overlay network tunnel endpoint next hops.