| US 7,519,010 B1 | ||
| Inter-autonomous system (AS) multicast virtual private networks | ||
| Rahul Aggarwal, San Francisco, Calif. (US); and Yakov Rekhter, New Rochelle, N.Y. (US) | ||
| Assigned to Juniper Networks, Inc., Sunnyvale, Calif. (US) | ||
| Filed on Aug. 26, 2005, as Appl. No. 11/213,641. | ||
| Claims priority of provisional application 60/605629, filed on Aug. 30, 2004. | ||
| Int. Cl. H04L 12/28 (2006.01); H04L 12/56 (2006.01) | ||
| U.S. Cl. 370—254 [370/390; 370/401] | 28 Claims |
| 1. A method comprising:
establishing a first multicast tree having a source device and one or more destination devices within a first autonomous system
(AS), wherein each of the one or more destination devices belongs to at least one multicast virtual private network (MVPN);
establishing a second multicast tree having a source device and one or more destination devices within a second AS, wherein
each of the one or more destination devices belongs to at least one MVPN; and
stitching the first and second multicast trees together to create an inter-AS multicast tree for transmitting multicast data
packets for the MVPNs from the source devices to the destination devices in the first AS and the second AS;
receiving with the source device, the multicast data packets from a multicast source;
encapsulating the multicast data packets for the MVPNs that have destination devices in the first AS and the second AS requesting
the multicast data packets; and
transmitting the encapsulated packet for the MVPNs on the inter-AS multicast tree.
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