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From: titley@btnix.UUCP
Newsgroups: comp.dcom.lans
Subject: Re: ethernet terminal servers
Message-ID: <442@btnix.axion.bt.co.uk>
Date: Tue, 19-May-87 05:47:26 EDT
Article-I.D.: btnix.442
Posted: Tue May 19 05:47:26 1987
Date-Received: Thu, 21-May-87 07:08:17 EDT
References: <45800001@uicsrd>
Organization: British Telecom Research Labs, Martlesham Heath, IPSWICH, UK
Lines: 44

in article <45800001@uicsrd>, kai@uicsrd.CSRD.UIUC.EDU says:
> Nf-ID: #N:uicsrd:45800001:000:792
> Nf-From: uicsrd.CSRD.UIUC.EDU!kai    Apr 24 12:42:00 1987
>
>
> How do different Ethernet terminal servers affect network performance,
> user-perceived responce time (especially for editing), network
> management, and the company bank statement?
>
> I would like to hear from administrators and users of any Ethernet
> terminal servers.  We are about to outgrow our 16 terminal ports, and
> already have Ethernet working between two UNIX boxes using a DELNI.
> I appreciate the chance to benefit from your previous experiences.
>
> Patrick Wol{e
> System Manager
>
I run  a network  of approximately  30 machines,  ranging from  workstations
(Suns and MG1s) up through microVaxen, 750s and a  785. We  have settled  on
telnet and tcp/ip on ethernet as our common communication system. We use the
excelan tcp/ip product on our vaxen and spiderport terminal servers. We have
a total of 90 or so engineers, each with a terminal, using the system mainly
for editing using screen editors (EDT, TPU, Emacs and  E). Average  ethernet
loading is less than 1% and response is mainly  satisfactory although  worse
than a direct line. Reliability is good apart from bulk file transfers under
System V using the Excelan product which is prone to lock up. We have  found
that Spider products are  uniformly good  (we also  have a  link to  another
ethernet, some 100 miles away using X21 at 64K and a  Spiderbridge which  we
use for file transfers, mail feed (SMTP) and remote logins).

I feel that we have made the right choice. No  other system  could offer  us
the flexibility, ease of administration and cost.

Nigel Titley

Email: NTitley@axion.bt.co.uk
Snail: British Telecom Research Labs, Martlesham Heath, Ipswich, Suffolk, UK



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