In one of our core switches, the output of the mac-address-table shows some mac addresses which come up as MPLS Multicast address when I looked them up under MAC Manufacturer(See below). Also, in the mac-address-table under the port column, those mac addresses display several ports associated with them and the word Router(see attachement). My question is, why are these MAC addresses come up as MPLS Multicast and why under the ports is it has the word Router?
