US 12,309,056 B2
Ethernet virtual private network fast reroute triggered designated forwarder election
Luc André Burdet, Gatineau (CA); Patrice Brissette, Gatineau (CA); and Yuri Tsier, Kanata (CA)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Apr. 22, 2022, as Appl. No. 17/726,650.
Application 17/726,650 is a continuation in part of application No. 17/699,237, filed on Mar. 21, 2022, granted, now 12,003,406.
Application 17/699,237 is a continuation of application No. 16/686,896, filed on Nov. 18, 2019, granted, now 11,316,777.
Claims priority of provisional application 63/304,056, filed on Jan. 28, 2022.
Prior Publication US 2022/0247669 A1, Aug. 4, 2022
Int. Cl. H04L 25/22 (2006.01); H04L 45/00 (2022.01); H04L 45/28 (2022.01); H04L 45/50 (2022.01)
CPC H04L 45/22 (2013.01) [H04L 45/28 (2013.01); H04L 45/50 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving at an edge node of a redundancy group of edge nodes, a frame from a remote customer edge node;
determining whether the frame includes a redirect label;
when the frame includes a redirect label, determining whether an intended link for the frame is operational; and
when it is determined that the intended link for the frame is operational, removing a blocking scheme at the edge node, thereby allowing the frame from the remote customer edge node to reach the edge node.