Patent ID: 8509232

Claim:
A method for providing fault-resilient propagation of traffic from a first node toward a second node, wherein the first node and the second node each have a respective pair of redundant multicast trees (RMTs) rooted thereat, wherein the pair of RMTs rooted at the first node comprises a pair of node-disjoint paths from the first node to the second node and the pair of RMTs rooted at the second node comprises a pair of node-disjoint paths from the second node to the first node, the method comprising: propagating multicast traffic from the first node toward the second node using at least one of the RMTs in the pair of RMTs rooted at the first node; and propagating unicast traffic from the first node toward the second node using at least one of the RMTs in the pair of RMTs rooted at the first node, or at least one of the RMTs in the pair of RMTs rooted at the second node.