Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet...http://www.google.com/patents/US7522600?utm_source=gb-gplus-sharePatent US7522600 - Transport of control and data traffic for multicast virtual private networks
