Abstract: A system for PIM fast failover recovery includes a network of a plurality of switching devices. The plurality of switching devices includes a source switching device near a source communicatively connected to a receiver switching device near a receiver by a first interface and at least a third switching device that is communicatively connected to the receiver switching device by a second interface and further is communicatively connected to the source switching device by a third interface. The receiver switching device may discover that the first interface has failed and responds by sending the third switching device a PIM graft message prior to deleting an associated first interface route entry.

Abstract: Embodiments of the invention relate to register message transmission control in a system. One embodiment includes forwarding a communication packet to a first switch. A multicast source route entry is created by the first switch based on the communication packet. The communication packet is forwarded from the first switch to a second switch. A duplicate of the multicast source route entry is created by the second switch based on the forwarded communication packet. A register message is sent to a router by one of the first switch and the second switch based on a first vLAG role. Sending of a duplicate of the register message by one of the first switch and the second switch is prevented based on a second vLAG role.

Abstract: Embodiments of the invention relate to synchronizing multicast route entries in a system. One embodiment includes forwarding a communication packet to a first switch and determining a multicast source route entry by the first switch based on the communication packet. The communication packet is forwarded from the first switch to a second switch. The multicast source route entry is determined by the second switch based on the forwarded communication packet.

Abstract: A system for PIM fast failover recovery includes a network of a plurality of switching devices. The plurality of switching devices includes a source switching device near a source communicatively connected to a receiver switching device near a receiver by a first interface and at least a third switching device that is communicatively connected to the receiver switching device by a second interface and further is communicatively connected to the source switching device by a third interface. The receiver switching device may discover that the first interface has failed and responds by sending the third switching device a PIM graft message prior to deleting an associated first interface route entry.