The command "mpls mtu " is used to set the MPLS MTU value higher than the interface MTU value .
But I also see the note " Although you can set the MPLS MTU to a value greater than the interface MTU, set the MPLS MTU less than or equal to the interface MTU to prevent data corruption, dropped packets, and high CPU conditions".
Then , whether I set the mpls mtu > ip mtu or set the mpls mtu < ip mtu?
Now , I meet the device is cisco WS-C6509 with IOS 12.2(18)SXD7b , the interface is a Gigaethernet with the default interface mtu=1500 and mpls mtu=1532, when this port receive a packet labled = 1504 ,the device will drop this ? or fragement it?