| 摘要 |
In order to achieve optimized delivery of multicast traffic between L2 OTV sites across an L3 multicast service provider core infrastructure, embodiments of the present disclosure describe building different provider multicast data trees rooted at a source site for individual per-vlan (*,G)/(S,G) streams. Building such provider trees may require individual sites to discover multicast sources local to their network and subsequently announce to all receiver sites the multicast data trees (DS, DG) to be used to deliver such multicast traffic. The present disclosure describes the coordination between OTV edge devices for the (S,G) to (DS, DG) mapping originated by the source OTV edge device where the multicast traffic is originated.
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