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From: rms@ACC-SB-UNIX.ARPA (Ron Stoughton)
Newsgroups: mod.protocols.tcp-ip
Subject: X.25 on Arpanet
Message-ID: <8609230206.AA16609@ACC-SB-UNIX.ARPA>
Date: Mon, 22-Sep-86 22:06:51 EDT
Article-I.D.: ACC-SB-U.8609230206.AA16609
Posted: Mon Sep 22 22:06:51 1986
Date-Received: Tue, 23-Sep-86 05:58:38 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
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Approved: tcp-ip@sri-nic.arpa

Hosts requiring X.25 Standard service must be connected to an IMP running
PSN6.  I am not certain, but I don't believe many (if any at all) Arpanet
IMPs have been converted to run PSN6.  Many will require a hardware upgrade
(C/30 to C/30E).  Maybe someone from BBN can comment on this and give a
schedule for upgrading the Arpanet IMPs.

Ron Stoughton
rms@acc-sb-unix.arpa