US 12,261,919 B2
Service insertion in a computer network using dynamic service path selection
Satish Kumar Mahadevan, San Ramon, CA (US); Laxmikantha Reddy Ponnuru, San Ramon, CA (US); and Pritam Baruah, Fremont, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Jun. 2, 2023, as Appl. No. 18/328,300.
Prior Publication US 2024/0406276 A1, Dec. 5, 2024
Int. Cl. H04L 67/51 (2022.01); H04L 45/02 (2022.01); H04L 45/12 (2022.01); H04L 45/302 (2022.01)
CPC H04L 67/51 (2022.05) [H04L 45/02 (2013.01); H04L 45/127 (2013.01); H04L 45/306 (2013.01)] 17 Claims
OG exemplary drawing
 
14. One or more non-transitory computer-readable media storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:
determining that a network comprising a first router, a second router, and a third router is operating in a service mode;
determining that a first path is active based on retrieving a network path from a routing table and determining that the third router is an active intermediate router based on the network path, wherein the active intermediate router is for data transmission from the first router to the second router, and wherein the first path is associated with the third router, and further wherein determining that the first path is active comprises:
determining, based on the routing table, that the third router is active and is an intermediate router for reaching the second router;
determining, based on querying a service database stored on a control policy node of the network, that the third router satisfies a service requirement associated with the service mode; and
based on determining that the first path is active and the third router satisfies the service requirement, transmitting a first packet using the first path, wherein the first packet is destined for transmission to the second router and is associated with the service mode.