when this parameter is enabled, OSPF will use the MTU size of
ethernet, that is, 1500 in all the interfaces regardless of
what IP passes onto OSPF if the wfOspfMtuSize at the interface
is set to 1(= Default) or 2. If wfOspfMtuSize is greater than
2 then OSPF will use wfOspfMtuSize as the MTU size at the
interface.