US 9,813,300 B2
Media flow tracing in third party devices
Eric Yu, Philadelphia, PA (US); Michael O'Brien, Manasquan, NJ (US); Aamer Akhter, Cary, NC (US); and Salman Asadullah, Campbell, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Oct. 16, 2012, as Appl. No. 13/652,585.
Prior Publication US 2014/0105038 A1, Apr. 17, 2014
Int. Cl. H04L 12/24 (2006.01); H04L 12/26 (2006.01)
CPC H04L 41/12 (2013.01) [H04L 43/065 (2013.01); H04L 43/087 (2013.01); H04L 43/0835 (2013.01); H04L 43/0894 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a trace device that has experienced dropped packets or a lack of connectivity, a request to troubleshoot a media stream from a customer edge network device;
initiating, by the trace device sending a command to a network management system, a route discovery process on a provider network, wherein the network management system generates a media trace table that lists network devices and media trace capabilities of the network devices;
collecting performance data of at least one provider network device in the provider network as learned by the route discovery process and in response to the request to troubleshoot the media stream;
forwarding the performance data of the at least one provider network device to the customer edge network device; and
identifying the at least one provider network device from a gap in a time to live sequence of network devices of the provider network, wherein the gap indicates a lack of a response from the at least one provider network device to the route discovery process.