Patent ID: 9503279
Filing Date: 2016-11-22
CPC Classification: H04L

Claim Text:
1. An apparatus comprising: a first network device adapted for communication with a plurality of other network devices; the first network device comprising: a service routing element configured with a first anycast rendezvous point address so as be an anycast rendezvous point peer with at least a second network device in a service routing domain; and a client routing element configured with a second anycast rendezvous point address so as to be an anycast rendezvous point peer with at least a third network device in a client routing domain; wherein the first network device is configured to receive in its service routing element from a service routing element of the second network device a register message identifying a multicast source, and to provide at least a portion of the register message from its service routing element to its client routing element in a manner that allows the third network device to learn the identity of the multicast source from the client routing element; wherein the first network device comprises a provider edge device spanning the service and client routing domains; and wherein the third network device comprises a customer edge device in the client routing domain.