10 Sep
2022
10 Sep
'22
11:13 p.m.
A Tops-10 node appears to be able to have separate
connections via a KDP, viz:
It's not a TOPS-10 issue; it's a KS10/2020 limitation because Ethernet is not
supported on that machine. The KDP is actually a combination of one KDP and one or more
DUPs. Each DUP is a single synchronous line interface and you can have up to four. They
can be used for either DECnet or ANF10. I believe that officially DECnet only supported
one DUP line, but in practice you could have more.
But on a KL10, of course, it's the same as for TOPS20 and normally you'd have
the NI20 Ethernet interface. But I'm pretty sure there was a DN-something front end
that supported synchronous DECnet circuits, so I would expect those were possible too.
Bob