US 11,689,453 B2
Layer 2 virtual private network traffic steering over optical transport networks
Praveen Kumar, Bengaluru (IN); and Navdeep Sood, Bengaluru (IN)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Mar. 29, 2021, as Appl. No. 17/301,179.
Prior Publication US 2022/0311704 A1, Sep. 29, 2022
Int. Cl. H04L 45/50 (2022.01); H04L 45/00 (2022.01); H04L 12/46 (2006.01); H04L 101/622 (2022.01)
CPC H04L 45/502 (2013.01) [H04L 12/4641 (2013.01); H04L 45/62 (2013.01); H04L 45/66 (2013.01); H04L 2101/622 (2022.05)] 9 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, from a source device communicatively coupled to a first node in an optical communication network, client data for transmission over the optical communication network to a destination device communicatively coupled to a second node in the optical communication network; and
transmitting the client data from the source device to the destination device using a layer 2 (L2) virtual network connection between the source device and the destination device implemented over an optical transport network (OTN) path, based on including an identifier relating to the L2 virtual network connection in an optical frame, comprising:
transmitting the client data from the first node to the second node over the OTN path through the optical communication network using the optical frame, wherein the second node is configured to receive the optical frame and transmit the client data to the destination device based on the identifier in the optical frame, the transmitting the client data from the first node to the second node over the OTN path comprising:
determining the OTN path based on a media access control (MAC) address table comprising one or more MAC addresses and one or more corresponding OTN path identifiers,
wherein the identifier in the optical frame comprises a MAC address and the second node is configured to transmit the client data to the destination device based on a second MAC address table comprising a second one or more MAC addresses and one or more corresponding destination identifiers.