US 12,355,663 B2
Enhanced multicast traceroute to receive inline failure reply
Mankamana Prasad Mishra, San Jose, CA (US); Anuj Budhiraja, San Jose, CA (US); Sridhar Santhanam, Dublin, CA (US); and Sunil Krishnan K, Kannur (IN)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Jun. 24, 2022, as Appl. No. 17/808,652.
Prior Publication US 2023/0421491 A1, Dec. 28, 2023
Int. Cl. H04L 45/48 (2022.01); H04L 45/00 (2022.01); H04L 45/02 (2022.01); H04L 45/12 (2022.01)
CPC H04L 45/48 (2013.01) [H04L 45/02 (2013.01); H04L 45/127 (2013.01); H04L 45/20 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A router in a multicast network, wherein the router is an intermediate router disposed between a first hop router and a last hop router in the multicast network, the router comprising:
one or more processors; and
one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the router to perform operations comprising:
receiving a multicast trace query comprising a data packet;
editing the multicast trace query to include data corresponding to the data packet;
transmitting the edited multicast trace query to a subsequent router;
transmitting a first message to a receiver or a prior router indicating the edited multicast trace query was transmitted to the subsequent router; and
starting a timer for a determined period of time.