US 11,658,900 B2
Responding to operator commands in a multi-homing ethernet virtual private network (EVPN)
Marc Holness, Nepean (CA); Peng He, East Brunswick, NJ (US); Himanshu Shah, Hopkinton, MA (US); and Selvamani Ramasamy, San Jose, CA (US)
Assigned to Ciena Corporation, Hanover, MD (US)
Filed by Ciena Corporation, Hanover, MD (US)
Filed on Jun. 16, 2021, as Appl. No. 17/349,344.
Prior Publication US 2022/0407798 A1, Dec. 22, 2022
Int. Cl. H04L 45/24 (2022.01); H04L 12/46 (2006.01); H04L 45/00 (2022.01)
CPC H04L 45/24 (2013.01) [H04L 12/4641 (2013.01); H04L 45/22 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system comprising:
a plurality of Ethernet Segments (ESs); and
a plurality of service ports configured to communicate over the plurality of ESs, the plurality of service ports configured to enable an operator device to access an Ethernet Virtual Private Network (EVPN) to receive Layer 2 (L2) and Layer 3 (L3) services;
wherein the service ports are configured to enable the operator device to operate with multi-homing functionality to receive the L2 and L3 services via redundant paths associated with the plurality of ESs; and
wherein the services ports are configured to respond to operator commands included in EVPN messages, as a code in one of an EVPN ES Route message, an Extended Community Field, and a Designated Forwarder (DF) election sub-type, the operator commands including one or more operator commands related to switching among the redundant paths, and wherein the one or more operator commands include any of a Lockout command, a Force Switch command, a Manual Switch command, a Revert Mode Selection command, and a Manual Revert command.