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:
Jun. 02, 2026
Filed:
Jan. 30, 2024
Cisco Technology, Inc., San Jose, CA (US);
Arul Murugan Manickam, San Jose, CA (US);
Satyajit Das, Livermore, CA (US);
Avinash Shah, Pleasanton, CA (US);
Pritam Baruah, Fremont, CA (US);
Michael Tracy, Petaluma, CA (US);
Satish Kumar Mahadevan, San Ramon, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
The present disclosure includes systems and methods for symmetric routing and split-brain handling in high-availability (HA) networks using route priority and route affinity inversion. In one aspect, the method includes receiving, at a controller associated with a communication network, first status information associated with at least one of a first node or a second node. The first node and the second node are used in service of a first VPN. The controller determines, from the first status information, a preference associated with the first node over the second node for servicing traffic of the first VPN, and generates routing information for a third node of the communication network. The routing information specifies that the first node is preferred for serving traffic of the first VPN, and that the second node is available, but less preferred for servicing traffic of the first VPN.