Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!VENERA.ISI.EDU!postel
From: postel@VENERA.ISI.EDU (Jon Postel)
Newsgroups: comp.protocols.tcp-ip
Subject: TCP/IP over FDDI
Message-ID: <8811190332.AA13232@venera.isi.edu>
Date: 19 Nov 88 03:32:32 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 17

> Date: 7 Nov 88 23:07:17 GMT
> From: sgi!vjs%rhyolite.SGI.COM@ucbvax.Berkeley.EDU  (Vernon Schryver)
> Subject: TCP/IP over FDDI
> 
> As I understand (or, more accurately, misunderstand) things, in the
> next MAC document 48-bit addresses will be required & 16-bit optional
> (good news!).  That means, we have a 13 byte MAC header in front of every
> FDDI packet.  If we add an 8-byte 802.2 LLC header in the style of
> RFC-1042, then the IP header starts at the wonderous offset of 21.

Does anyone think a 13 byte MAC header is a good idea?  

Do the guys on the 802 committee ever thing about anything bigger than a
single bit?  What favor can they possibly think they are doing to the
users of FDDI networks by having a 13 byte header?

--jon.