US 12,363,005 B2
Virtual network function proof of transit
Clarence Filsfils, Brussels (BE); Ahmed Mohamed Ahmed Abdelsalam, L'Aquila (IT); Pablo Camarillo Garvia, Madrid (ES); and Sonia Ben Ayed, Vanves (FR)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Jan. 25, 2024, as Appl. No. 18/422,801.
Application 18/422,801 is a continuation of application No. 18/133,950, filed on Apr. 12, 2023, granted, now 11,962,473.
Claims priority of provisional application 63/417,898, filed on Oct. 20, 2022.
Prior Publication US 2024/0163179 A1, May 16, 2024
Int. Cl. G06F 15/173 (2006.01); H04L 41/0895 (2022.01); H04L 41/122 (2022.01); H04L 41/40 (2022.01); H04L 43/10 (2022.01)
CPC H04L 41/122 (2022.05) [H04L 41/0895 (2022.05); H04L 41/40 (2022.05); H04L 43/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for monitoring data transport in a network function virtualization (NFV) network, the method comprising:
receiving, at a node, a path tracing packet having a Midpoint Compressed Data (MCD) stack to collect load information for interfaces for nodes of an NIN chain, wherein the MCD stack of the path tracing packet contains a Wide Local Path Tracing Identification (WL PT ID) indicating that the path tracing packet is configured to collect the load information;
passing the path tracing packet through the NFV chain;
using the path tracing packet to collect the load information from the nodes of the NFV chain; and
analyzing the load information to determine interface loads on interfaces of the nodes the path tracing packet passed through.