We are working on implementing a multicast solution on our LAN. We would like to push multicast out to our closet switches which are connected via L3 connections. What in your opinions is the best way to go about this. When we were L2 we used IP pim sparse-dense-mode with cgmp but it was just on one vlan which pretty much encompassed all of our workstation IP's. Now as stated, we are L3 to all of our closet switches and have seperate vlans and IP schemes for each switch. Basically, how do you push multicast over L3? Do you have to do anything to the routed links?