US 12,261,773 B2
Egress pipeline with tag manipulation and ESI label push capability
Vishal Bandekar, Bangalore (IN); Digvijay Singh Gahlot, Bangalore (IN); Ramakrishnan Ganapathy Iyer, Trivandrum (IN); and Legena Puthanpurayil Kuttipunathil, Bangalore (IN)
Assigned to ARISTA NETWORKS, INC., Santa Clara, CA (US)
Filed by Arista Networks, Inc., Santa Clara, CA (US)
Filed on May 13, 2024, as Appl. No. 18/662,646.
Application 18/662,646 is a continuation of application No. 17/718,887, filed on Apr. 12, 2022, granted, now 12,010,015.
Prior Publication US 2024/0372804 A1, Nov. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/50 (2022.01); H04L 12/46 (2006.01); H04L 45/00 (2022.01); H04L 45/42 (2022.01)
CPC H04L 45/50 (2013.01) [H04L 12/4641 (2013.01); H04L 45/42 (2013.01); H04L 45/66 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method in a network device on a Layer 2 Ethernet Virtual Private Network Multi-Protocol Label Switching (L2 EVPN MPLS) network, the method comprising:
(a) receiving an ingress packet on a (ingress) port that is associated with a plurality of Ethernet segments (ES's);
(b) determining an (ingress) ES, from among the plurality of ES's, based on the ingress port on which the ingress packet was received;
(c) selecting a destination device from among a plurality of destination devices;
(d) in response to the selected destination device being associated with the ingress ES, pushing the ingress ES on the egress packet as a first MPLS label;
(e) pushing a second MPLS label on an egress packet, the second MPLS label based on the selected destination device; and
(f) transmitting the egress packet to the selected destination device.