On Fri, Apr 9, 2021 at 10:41 AM Noel Chiappa <jnc@mercury.lcs.mit.edu>
wrote:

>
> The base software for the Cisco multi-protocol router was code done by
> William
> (Bill) Yeager at Stanford (it handled IP and PUP); I have a vgue memory
> that
> his initially ran on PDP-11's, like mine. (I think their use of that code
> was
> part of the scandal, but I've forgotten the details.)
>
It might have been 11/20's, but I thought he had LSIs at that point (but I
can be miss remember).    It was much more sophisticated and was really
building a router, the CMU DFE was not.  We wanted a terminal mux.   So
were primarily interested in telnet. As I mentioned to Lars in another
thread, here is where I learned of  SUPDUP for some of the LISPers.   But
we



>
>     > From: Tom Lyon
>
>     > the design ... relied on CAD tools only extant on the Stanford
> PDP-10.
>
> Sounds like SUDS?
>
Yes -- SUDS ran on the CMU-10s and 3-River's GDPs (through the FE) -- it
was the CAD tool we used at CMU in the mid-late 1980s - the first tool I
learned.
ᐧ