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From: MRC@SIMTEL20.ARPA (Mark Crispin)
Newsgroups: mod.protocols.tcp-ip
Subject: IP over synchronous links
Message-ID: <12175956263.13.MRC@SIMTEL20.ARPA>
Date: Fri, 17-Jan-86 09:05:22 EST
Article-I.D.: SIMTEL20.12175956263.13.MRC
Posted: Fri Jan 17 09:05:22 1986
Date-Received: Sat, 18-Jan-86 11:19:20 EST
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Organization: The ARPA Internet
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Approved: tcp-ip@sri-nic.arpa

I too am interested in this.  I have a 2020 with a KMC11/DUP11 (a.k.a.
KDP or DN20-BA) low-speed synchronous interface.  I think the KMC11
microcode does some DDCMP handling; I don't have sources for it.  So I
guess the real question is if there is a de facto standard for IP over
a KDP that is nominally microcoded for DECnet?

Has anybody successfully used TCP/IP over a 1200 baud link?  Is it at
all effective at such a low speed?  I already have TELNET and reliable
file transfer and mail connectivity with "Dialnet" and various tools
(e.g. Kermit).  I'm somewhat worried that TCP/IP at such a slow speed
would introduce enough overhead to reduce my connectivity over "Dialnet",
in which case I might want to hold off until I get a faster modem.
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