So we had an interesting request on the Network Engineering Stack Exchange asking about X.25, Frame-Relay and ATM switching. The dedicated X.25 devices from the 70's and 80's are pretty solidly retro but I haven't seen much coverage of them. Would questions pertaining to these old NCP's, switches and the protocols of the time be on-topic for this forum?

  • Yes please. My first computer job was writing code that turned x25 trace logs into something useful.🙂 Commented Sep 13, 2020 at 13:37

1 Answer 1


I would say yes, definitely.

Communications and networking have always been an integral part of computing. Therefore, they should be welcome here.

We do have questions regarding protocols; Econet and Novell Netware to name just two. so, bring them on.

  • 1
    Having spent a certain amount of time on (what are now) retro computers implementing (what are now) retro protocols, I'd say "yes".
    – dave
    Commented Sep 10, 2020 at 1:38
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    Agreed, as long as it sticks to usage/higher protocol levels (I got a complete X25 test setup/network in my basement :)). Going too deep into X25 might be borderline.
    – Raffzahn
    Commented Sep 11, 2020 at 16:20
  • Would ISDN be considered retrocomputing? It's old, but not quite that old.
    – an earwig
    Commented Sep 21, 2020 at 14:13

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