Almost perfect : they averaged the US and the EU propositions (32 and 64 bytes) for the data => 48 bytes, and then added 5 bytes for the header => 48 + 5 = 53 bytes. E.T. =>-----Original Message----- =>From: owner-ietf@xxxxxxxx [mailto:owner-ietf@xxxxxxxx] On =>Behalf Of Dan Kolis =>Sent: jeudi 4 décembre 2003 14:20 =>To: ietf@xxxxxxxx =>Subject: An apology of sorts => => =>Hi => Did you ever heard why ATM got 53? is =>it? byte cells? They just averaged a bunch of competing =>propopsals.