On Wed, Oct 19, 2005 at 02:54:47PM +0200, Vincent De Keyzer wrote: > So you have a "physical" MTU, and a MTU for each protocol; and no "protocol" > MTU can be higher than the "physical" MTU. Exception: "mpls mtu" (or "tag-switching mtu") can be larger than the physical interface MTU... for some reason. -Phil