US 12,284,108 B2
Border node traffic convergence
Prakash Jain, Fremont, CA (US); Sanjay K. Hooda, Pleasanton, CA (US); and Victor Moreno, Carlsbad, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Jun. 29, 2023, as Appl. No. 18/343,931.
Application 18/343,931 is a continuation of application No. 17/304,672, filed on Jun. 24, 2021, granted, now 11,729,089.
Application 17/304,672 is a continuation of application No. 16/566,714, filed on Sep. 10, 2019, granted, now 11,057,292, issued on Jul. 6, 2021.
Claims priority of provisional application 62/858,876, filed on Jun. 7, 2019.
Prior Publication US 2023/0344746 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/02 (2022.01); H04L 9/40 (2022.01); H04L 12/66 (2006.01); H04L 45/00 (2022.01)
CPC H04L 45/02 (2013.01) [H04L 12/66 (2013.01); H04L 45/22 (2013.01); H04L 63/0227 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, at a first border node from a mapping function, a first map notification indicating a second border node in an internal software-defined (SD) network fabric is registered for a second external traffic connection to an external network;
establishing a first backup path from the first border node in the internal SD network fabric to the second border node for a first external traffic connection to the external network at the first border node;
detecting, at the first border node, a change in the first traffic external connection at the first border node; and
routing, at the first border node, network traffic for the first external traffic connection via the first backup path.