[Simh] [HECnet] TOPS-20 V4.1 DECnet

[simh at swabhawat.com]

Hi,

that story is already old; MRC presented it as the Tops-20 V4.2.
That software never has been found.
But if the real problem is Tops20 on Decnet, a KLH10 from Ken Harrenstein
runs Tops20-7.1 on a 4 MW KL10 processor in a Linux environment ant
cooperates with Simh Vax, Pdp11 Rsx11MP46, Rsts-E-10.1L and other Pdp10
systems though Ethernet/sync line router systems.
Works like a charm. 
Same thing holds for Tops10-705 on Klh10 with Ethernet functionality

Best regards,

Reindert

-----Original Message-----
From: simh-bounces at trailing-edge.com [mailto:simh-bounces at trailing-edge.com]
On Behalf Of Cory Smelosky
Sent: Friday, May 02, 2014 19:32
To: hecnet at Update.UU.SE
Cc: simh at trailing-edge.com
Subject: Re: [Simh] [HECnet] TOPS-20 V4.1 DECnet

On Fri, 2 May 2014, Peter Lothberg wrote:

Looks like there's no DMC on the PDP-10, no DMC OR KDP on the 
MicroVAX, and no KDP on the VAX780.

However, the PDP-11 has the DUP.   Looks like I can use that as the 
go-between.


MRC with the help of Stu Grosman did a phase 4 port to KS tops20. It 
uses teh KMC/DUP, but has a limitation, as there was not enough memory 
left, all buffers had to be in one page, the decnet MTU is not 576 but
376 or something like that. This does not matter unless you have two 
interfaces and try to be a transit node. (it can be routein-iv).


Any idea where I can find this Phase IV port?

It speaks DDCMP on the CYNC interface, so anything that speaks DDCMP 
can talk to it, DUP,DQ, DMC DMR ...

-P


--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
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