Layer 3 IP Multicast using PIM-SM

Consider the following sample topology for MLAG:

DUT-1(core lic)======ISC vlan========DUT-2(core lic)

| |

+----------------DUT-3(edge lic)---------------+

DUT-1 and DUT-2 are MLAG peers, DUT-3 is a L2 switch whose uplink is a LAG up to the pair of MLAG switches.