US 11,716,268 B2
Telemetry data optimization for path tracing and delay measurement
Clarence Filsfils, Brussels (BE); Ahmed Mohamed Ahmed Abdelsalam, L'Aquila (IT); Rakesh Gandhi, Stittsville (CA); Pablo Camarillo Garvia, Madrid (ES); and Francois Clad, Strasbourg (FR)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Jun. 10, 2021, as Appl. No. 17/344,443.
Claims priority of provisional application 63/119,992, filed on Dec. 1, 2020.
Claims priority of provisional application 63/120,002, filed on Dec. 1, 2020.
Claims priority of provisional application 63/119,938, filed on Dec. 1, 2020.
Claims priority of provisional application 63/119,964, filed on Dec. 1, 2020.
Prior Publication US 2022/0173992 A1, Jun. 2, 2022
Int. Cl. H04L 43/0852 (2022.01); H04L 43/106 (2022.01); H04L 43/0805 (2022.01); H04L 41/12 (2022.01); H04L 43/12 (2022.01); H04L 45/12 (2022.01); H04L 45/42 (2022.01); H04L 45/741 (2022.01)
CPC H04L 43/0805 (2013.01) [H04L 41/12 (2013.01); H04L 43/0852 (2013.01); H04L 43/106 (2013.01); H04L 43/12 (2013.01); H04L 45/123 (2013.01); H04L 45/42 (2013.01); H04L 45/741 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining, based at least in part on a maximum number of interfaces associated with a node in a network, a minimum number of bits to be used for short interface identifiers;
receiving telemetry data associated with sending a packet through a network, the telemetry data including at least:
a first short interface identifier associated with a first interface of a first node of the network that was used to send the packet to a second node, the first short interface identifier comprising the minimum number of bits; and
a second short interface identifier that is associated with a second interface of a second node of the network that was used to receive the packet from the first node, the second short interface identifier comprising the minimum number of bits;
determining, based at least in part on the telemetry data, a path through the network according to which the packet was sent, the path including at least the first node and the second node; and
determining whether an anomaly exists in the network based at least in part on the path.