| 摘要 |
<p>A system and method are provided for providing redundancy in PIM-SM Rendezvous Point selection, without requiring the signaling and overhead of a bootstrap messaging system. Each router stores a prioritized list of eligible Rendezvous Points for each group. When selecting an initial RP for a group, each router selects the RP having the highest priority. If the initial RP, or current RP, becomes unicast unreachable, the routers select an alternate RP based on the eligible routers' priorities. Since the prioritized lists stored at each router are identical, each router will use the same RP for a given group. The invention combines the simplicity of static PIM-SM configuration with the redundancy of bootstrap messaging PIM-SM configuration.</p> |
