| 摘要 |
A capability is provided for supporting fault-resilient multicast using multiple sources. A method for supporting fault-resilient propagation of multicast traffic using Redundant Multicast Trees (RMTs) includes identifying each potential Shared Risk Link Group (SRLG) conflict associated with a pair of RMTs providing node-disjoint paths to a plurality of destination nodes, identifying each potential SRLG conflict that is an actual SRLG conflict, and, for each actual SRLG conflict, determining a detour path for protecting the links of the actual SRLG conflict. The pair of RMTs includes a first RMT from a first multicast source node to each of the destination nodes and a second RMT from a second multicast source node to each of the destination nodes. Each potential SRLG conflict includes a plurality of links. A potential SRLG conflict is determined to be an actual SRLG conflict if first and second paths for one of the destination nodes over the respective first and second RMTs each traverse at least one link of the potential SRLG conflict. |
