Figure: In-band signaling with non-segmented inter-AS MLDP trees in GRT shows the processing required for d-mLDP with non-segmented mLDP Inter-AS trees in GRT (routers in AS3, including ASBR 1, have no route to ROOT-1 in IGP and must use BGP unicast routes to resolve route to ROOT-1 and to multicast source).
PE-1 (ROOT-1) is the root node of the MLDP tree, and PE-2 (LEAF) is the leaf node.
Figure: In-band signaling with non-segmented inter-AS MLDP trees in GRT
