The command is feature pim. En NX-OS, multicast is enabled only after enabling the PIM or PIM6 feature on each router and then enabling PIM or PIM6 sparse mode on each interface that you want to participate in multicast.
Por ejemplo:
cambiar(configuración)#feature pim cambiar(configuración)#interface Vlan[536] cambiar(config-if)#ip pim sparse-mode See Cisco Nexus 7000 Series NX-OS Multicast Routing Configuration Guide, Release 5.xfor a complete configuration guide.