Abstract: The embodiments disclose a method and communication node for configuring a multicast group in a Multiple Protocol Label Switching (MPLS) network. The method comprises: obtaining a multicast group configuration request to configure the multicast group of at least one downstream node in the MPLS network, the at least one downstream node may comprise a transit node, a leaf node or the combination thereof; generating a multicast group configuration packet based on the multicast group configuration request; and transmitting the multicast group configuration packet from the root node to the at least one transit node and/or leaf node via a multicast tree in the MPLS network.

Abstract: Presented are a system and method of detecting a multicast tree link failure and performing a fast switch from the failed multicast tree communication path to a secondary multicast tree communication path. The methods are suitable for leaf nodes in a multiprotocol label switching network. The method generates a count of communication path failure detection packets and a count of communication path failure detection packets plus other packets and compares the counts to determine the status of the link. The system includes two counter components and a comparison component.

Abstract: The embodiments disclose a method and communication node for configuring a multicast group in a Multiple Protocol Label Switching (MPLS) network. The method comprises: obtaining a multicast group configuration request to configure the multicast group of at least one downstream node in the MPLS network, the at least one downstream node may comprise a transit node, a leaf node or the combination thereof; generating a multicast group configuration packet based on the multicast group configuration request; and transmitting the multicast group configuration packet from the root node to the at least one transit node and/or leaf node via a multicast tree in the MPLS network.

Abstract: Presented are a system and method of detecting a multicast tree link failure and performing a fast switch from the failed multicast tree communication path to a secondary multicast tree communication path. The methods are suitable for leaf nodes in a multiprotocol label switching network. The method generates a count of communication path failure detection packets and a count of communication path failure detection packets plus other packets and compares the counts to determine the status of the link. The system includes two counter components and a comparison component.

Abstract: A first label switch router (LSR) in a ring network protects multiple service label switched paths (LSPs) using a single bidirectional circular protection LSP tunnel. The first LSR monitors for a failure report responsive to detecting disconnection with a neighbor LSR. The report indirectly indicates either failure of a link to the neighbor LSR or failure of the neighbor LSR itself. Responsive to receiving the report, the first LSR locally re-routes any labeled packets of service LSPs headed toward the failure by placing those packets onto the tunnel in a direction away from the failure, and locally merges any labeled packets received over the tunnel into respective service LSPs headed away from the failure. Local re-routing entails the first LSR dynamically selecting between next-hop service labels and next-next-hop service labels for packets placed onto the tunnel, based on whether the failure is of the link or of the neighbor LSR.