On Mon, Nov 5, 2012 at 4:49 PM, Carsten Bormann <[email protected]> wrote: >>> Yes, but how do you do that if you don't know the fragment size? >>> Right now, you can only guess, and you'll likely try to guess >>> conservatively, missing out on the opportunity to reasonably fill the >>> packets. >> >> Only 6lowpan adaption is here in IETF, the MTU is 127 bytes, isn't it? > > That is the physical layer MTU. > > The specific combination of MAC layer overheads, adaptation layer overheads, > and header compression gains can turn the actual initial fragment size number > into anything roughly between 70 and 160 bytes. Note that this is more than > a factor of two. >
This worth stating in the draft though:) regards, cz > Grüße, Carsten > _______________________________________________ Int-area mailing list [email protected] https://www.ietf.org/mailman/listinfo/int-area
