US 11,838,371 B2
System and method for connecting virtual networks in a branch site to clouds
Avinash Ashok Kumar Chiganmi, Fremont, CA (US); Venkatraman Venkatapathy, Fremont, CA (US); Giorgio Valentini, Walnut Creek, CA (US); Madhuri Kolli, San Jose, CA (US); Shu-Fen Lee, San Jose, CA (US); and Balaji Sundararajan, Fremont, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Jul. 5, 2022, as Appl. No. 17/857,212.
Application 17/857,212 is a continuation of application No. 17/377,315, filed on Jul. 15, 2021, granted, now 11,412,051.
Claims priority of provisional application 63/172,211, filed on Apr. 8, 2021.
Prior Publication US 2022/0417332 A1, Dec. 29, 2022
Int. Cl. G06F 15/16 (2006.01); H04L 67/141 (2022.01); H04L 12/46 (2006.01); H04L 45/02 (2022.01)
CPC H04L 67/141 (2013.01) [H04L 12/4641 (2013.01); H04L 45/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of validating packet forwarding in a multi-cloud environment, the method comprising:
identifying one or more network hops across a multi-cloud environment;
determining a corresponding flow label for the one or more network hops, the corresponding flow label being separate from a segment identifier;
validating packet forwarding of the one or more network hops using at least the corresponding flow label and a validation test packet;
determining one or more additional network hops across the multi-cloud environment to be validated based on the validation of the one or more network hops; and
validating packet forwarding for the one or more additional network hops.