Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!brl-adm!rutgers!sri-unix!hplabs!cae780!leadsv!esl!mac From: mac@esl.UUCP (Mike McNamara) Newsgroups: comp.unix.wizards Subject: Re: Info sought on system upgrade Message-ID: <366@esl.UUCP> Date: Sun, 14-Dec-86 17:18:46 EST Article-I.D.: esl.366 Posted: Sun Dec 14 17:18:46 1986 Date-Received: Tue, 16-Dec-86 19:32:51 EST References: <776@natmlab.dms.oz> Reply-To: mac@esl.UUCP (Mike McNamara) Organization: ESL, Inc., Sunnyvale, CA. Lines: 18 One thing I would highly recommend to anyone trying to upgrade their system performance is a terminal server. I am speaking about a box which sits on the ethernet, allows you to plug in ~16 terminals, and allows those terminals to communicate to any box that speaks TCP/IP. This removes the high cost of interrupt per character to and from your terminal, times the number of users, which is a significant drain on your cpu bandwidth. It also allows users to select which machine they would like to log in to, without (a) using their "main" host as just an rlogin frontend, or (b) requesting that system support change their configuration. Terminal servers also work much better than the switchers, like Develcons. We are using Annexes from Encore, but I think any such products would serve well. I am not connected with anyone who makes anything. -- Michael Mc Namara ESL Incorporated ARPA: mac%esl@lll-lcc.ARPA