The following are operational considerations when deploying PIM-SM over IPv6:
You can only configure PIM-SM if you configure the spbm_config_mode boot flag to false.
GENid
DR priority
LAN-PRUNE delay
T-bit
IPv6 multicast is not supported over SPBM
IPv6 multicast routing is not virtualized, it is supported only on GRT
IPv6 multicast configuration on SMLT VLAN is not supported. vIST peers cannot form PIM-SM over IPv6 neighbor adjacencies. Senders and receivers on the vIST peers (SMLT and non-SMLT) cannot communicate. MLT and LACP is supported.
Static entries
Bootstrap message (BSR)
Anycast RP
Virtual PIM neighbors
Fast join prune
Software forwarding
Passive PIM interfaces
IP mroute stream limit
Bidirectional PIM
Multicast Border Router (PMBR)
VRF support for PIM (GRT only)
IGMP and PIM mtrace capability