I have PIM SM running on a dual core 8810 environment with edge user switches connected. The multicast source server used to terminate here but changed to a vm a few years back which moved to our TOR 10G switches, and these dc670’s connect directly to the Cores. PIM still works even though the source server moved off the core. The VLANs on the TOR switches are layer 2 only and I want to change these to layer 3 and enable forwarding. I need advice because I’m unsure if I should enable IPMC forwarding as well. I appreciate your thoughts on this one.