Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!lll-crg!mordor!sri-spam!nike!ucbcad!ucbvax!LLL-MFE.ARPA!Provan From: Provan@LLL-MFE.ARPA Newsgroups: mod.protocols.tcp-ip Subject: the length of 802.3 + 802.2 header Message-ID: <8608210647.AA13624@ucbvax.Berkeley.EDU> Date: Thu, 21-Aug-86 00:48:00 EDT Article-I.D.: ucbvax.8608210647.AA13624 Posted: Thu Aug 21 00:48:00 1986 Date-Received: Thu, 21-Aug-86 19:02:01 EDT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 14 Approved: tcp-ip@sri-nic.arpa this isn't quite the right mailing list for this, but i'm sure i'll get a correct answer from someone reading this... i've gone over it a hundred times, and i swear the length of the header on an 802.2 type 1 packet is 17 bytes: 14 bytes for the 802.3 (aka "ethernet") header and 3 bytes for the 802.2 header. that is, the data will begin at byte number 18 (if the first byte is "1") of the transmitted packet. maybe it's my ARPAnet training, but a header with an odd number of bytes is so incredible that i just can't believe it. could someone please confirm that this is, in fact, correct, or, even better, point out where i'm making my mistake and show me why it's really an even number? i'd appreciate it. don