4 Apr
2011
4 Apr
'11
2:17 p.m.
On Mon, Apr 4, 2011 at 4:16 PM, Michael Gemeny <mgemeny at pgcps.org> wrote:
A question about IBM 2780/3780 over TCP/IP for systems
under simulation.
Are their any examples of this in use now?
In commercial use? Probably. 2780/3780 was blessed for moving EDI
traffic a long time ago (c. 1990) - originally, it was dial-up sync
modems, but when the Internet became the dominant transport layer,
folks just bundled up the original protocol in TCP wrappers.
A write up of the implementation would be great if
anyone has that, but that
may be asking too much.
Are you trying to learn more about the original 2780/3780 bisync
protocol or specifically about how it's encapsulated for transport via
TCP?
I ask because I used to manufacture bisync-emulating devices (HASP and
3780) and have a bit of experience at the low level. I have not
worked with it since modems fell out of favor, so I have nothing to
share about encapsulation.
-ethan