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Inter-AS and Multi-Segment P2MP PWs Inter-AS optons (a), (b) and (c) that are described in VPLS-MCAST are supported by P2MP PWs A Multi-Segment P2MP PW is equivalent to a segmented inter-AS tree that is described in [VPLS-MCAST], for inter-AS option (b). In VPLS-MCAST a segmented inter-AS tree for a particular VPLS instance is formed by dynamically stitching intra-AS segments. A segment of an inter-AS segmented tree is equivalent to a segment of a Multi-Segment P2MP PW. Procedures that are used in VPLS-MCAST for segmented inter-AS trees are re-used to dynamically stitch segments of a Multi- Segment P2MP PW. |