VS3100 and ThinEthernet

[George Robbins]

In article <JV.89Aug2172611 at mhres.mh.nl> jv at mh.nl (Johan Vromans) writes:
> Hello,
> 
> I've been working with a VAXstation3100 for a few weeks. It was
> connected to our Ethernet using a dropcable to one of the DELNIs. 
> Recently I switched to a local thin-wire Ethernet, which is connected
> to our main network via a DESPR.
>  
> When I'm connected to a system on the network, e.g. via DECterm, the
> connection frequently stucks for about three seconds, and then
> continues. Sometimes it is even worse: about six seconds. This did not
> happen when I was connected directly to the DELNI.

Do you have a terminator on the thin-wire cable?  The behavior you
describe sounds like DESPR is periodically shutting down the thinwire
segment due to collisions or jams.

Note that the DESPR should be connected directly to the main ethernet
thru an H4005 or equivalent transceiver with a heartbeat disable option.

-- 
George Robbins - now working for,	uucp: {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr at uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)