Displaying the Multicast Cache
    
        
                The multicast cache stores information about multicast
          groups. To display part or all of the entries in the multicast cache, use the following
          command:
                show mcast cache {{vlan} vlan_name} {{[group
                        grpaddressMask | grpaddressMask] {source
                        sourceIP | sourceIP}} {type [snooping | pim | mvr]}| {summary}}