A system for providing resilient multimedia broadcasting services over a VPLS network is described. A Network Management System (NMS) calculates disjoint minimum cost trees using the Steiner algorithm, executed with extra steps to result in disjoint trees. Destination PE routers in the VPLS network are connected to the disjoint trees so that they can be serviced by either tree in case of a fault. Each of the disjoint trees is provisioned with enough bandwidth to carry all of the services provided by the VPLS network. Under normal operation, however, the services are distributed evenly over the trees. In the event of a fault, the services on a faulty tree are switched to another tree using split horizon bridging. Each Steiner tree can also be realized using point-to-multipoint LSPs which is fully protected by a precomputed point-to-multipoint LSP.

 
Web www.patentalert.com

< Packet stream arrangement in multimedia transmission

< Authoring system for combining temporal and nontemporal digital media

> Description document for a service offered by a server in a communication network and method of validating a multimedia document

> System for mediating convergence services of communication and broadcasting using non-communicative appliance

~ 00607