Path: utzoo!attcan!uunet!ncrlnk!ncr-sd!hp-sdd!hplabs!ucbvax!CLASH.CISCO.COM!lougheed
From: lougheed@CLASH.CISCO.COM
Newsgroups: comp.protocols.tcp-ip
Subject: Re: SLIP MTU "violation" - does anyone? does anyone care?
Message-ID: <8810090709.AA28155@ucbvax.Berkeley.EDU>
Date: 3 Oct 88 17:01:30 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 13

Alan -

Regarding 1822 numerology:

8063/8 = 1007.875, so 1007 bytes is possible, but 1006 is the largest even
byte count.  Our experience on the DDN is that most systems use 1006 bytes
as the MTU.  Attempting to use a larger MTU has given us headaches,
especially with some Berkeley-derived systems.  Invoking the engineering for
interoperability principle, the cisco software will never send a DDN bound
datagram greater than 1006 bytes, but will accept larger datagrams.

Kirk Lougheed
cisco Systems