Segmented MVPN Using IP Lookup for BIER

This document specifies an alternative of the control plane and data plane procedures that allow segmented MVPN using the more efficient LIR-pF explicit-tracking when BIER is used as the upstream or downstream or both segments. It requires a segmentation point BFR doing an IP header lookup, which is common for the forwarding procedure on BFER, or the forwarding procedure on ABR with local VPN CEs connected. This document updates [I-D.ietf-bier-mvpn].