On Fri, Apr 22, 2011 at 12:33 AM, Harry Strongburg <harry.na...@harry.lu> wrote: > On Thu, Apr 21, 2011 at 09:55:03PM -0400, Christopher Morrow wrote: >> how has mtu got anything to do with packet path? > > PMTUD?
that won't change the destination based routed path, it'll cause the endpoints to lower their MTU to a mutually agreeable threshold. The packets will still flow along the same path. (besides pmtud brings the mtu down, not up... the proposal was to raise the mtu) -chris