Alton Lo

Root node redundancy for multipoint-to-multipoint transport trees

Transporting multicast over MPLS backbone using virtual interfaces to perform reverse-path forwarding checks

Enhanced switchover for mpls fast reroute

Technique for determining whether to reestablish fast rerouted primary tunnels based on backup tunnel path quality feedback

Failure protection for P2MP tunnel tail-end node

Method and system for providing voice QoS during network failure

System and method for implementing multicast over a label-switched core network

Method and system for providing QoS during network failure

Verfahren und system zur bereitstellung von dienstgüte (qos) während eines netzwerkdefekts

Erweiterter überwechsel für ein schnelles mpls-umrouten Extended over alternately for a fast-reroute mpls