eidem%regtek.unit.uninett@TOR.NTA.NO (Kjell Eidem) (01/12/88)
Connecting terminals to TCP/IP hosts via terminal servers. Does anyone know about terminal servers running TCP/IP on Ethernet? At our site we have some Vax'es with VMS/Decnet and a couple of Microvax'es with Ultrix/Decnet/TCP/IP on a local Ethernet. Decservers 100/200 and LAT software are used for terminal handling. We will now connect Sun workstations to this localnet, and the question is if it is possible from some sort of terminal server to connect the terminal to a Sun in the same way we can connect to a Vax via a Decserver. Comments to this are appreciated. Kjell Eidem Sintef Division of Automatic Control Trondheim Arpa: eidem%regtek.unit.uninett@tor.nta.no ==================
joe@cfa250.harvard.EDU (Joseph Schwarz) (01/14/88)
in article <133*eidem@regtek.unit.uninett>, eidem%regtek.unit.uninett@TOR.NTA.NO (Kjell Eidem) asks: > > Connecting terminals to TCP/IP hosts via terminal servers. > We will now connect Sun workstations to this localnet, and the > question is if it is possible from some sort of terminal server > to connect the terminal to a Sun in the same way we can connect > to a Vax via a Decserver. We have a net that includes Suns, Ultrix MicroVAXen and a VMS MicroVAX running Wollongong's TCP/IP software. We use a Bridge CS/100 Terminal Server to connect terminals to all of these machines. The speed isn't blinding, and we sometimes get hangs that we've not been able to figure out, but the thing basically works. The firm's address is (or was, as of April 1986; they've merged with 3COM since, but I don't know if that's affected their whereabouts): Bridge Communications 2081 Stierlin Road Mountain View, CA 94043 (415) 969-4400 I also received an ad recently for the "Maxserver 5000", which claims to provide "an integrated package for local and wide area networking and TCP/IP connectivity" as well as (I think) LAT support. I know *nothing* about the reality or performance of this product. The company is: Xyplex, Inc. 100 Domino Drive Concord, MA 01742 USA 1-800-338-5316 Hope this is of use.
medin@titan.arpa (Milo S. Medin) (01/14/88)
With regards to TCP/IP terminal servers, we have lots of the Encore Annex terminal servers here, and are very pleased with them. They have a mini Unix kernel running inside that allows them to use lots of BSD networking code. Thus their TCP is 4.3 based, and works quite well. They have domain name server support, support for reverse logins (ie milking machine type of service), full loading and control over the network and all sorts of good stuff. They are very flexible and very well integrated into the IP networking environment. The people who work on product development are also very capable and are always looking to add features. Proteon OEM's their boxes, so you should be able to get info from Encore (who is in Mass.) or your local Proteon salesperson... Thanks, Milo
klb@philabs.Philips.Com (Ken Bourque) (01/19/88)
Bridge Communications makes TCP/IP terminal servers - we use them and they work well. Mixing the network between DECnet and TCP is a bit of a pain, though. The TCP-only machines (Bridge terminal servers and Suns (although you can get DECnet for Suns)) can't talk directly to the DECnet only machines (VMS). To communicate you must go through a system that has both, which is workable but not always convenient. For example, on a DECnet-only machine, if you want to transfer files to a TCP-only machine you have to log in to a TCP machine to run FTP, since you can't do that on the DECnet machine. Or, if you are on a LAT terminal and want to log in to a Sun you must first log in to a VMS machine (since Sun's can't handle LAT) and then use Telnet. I strongly suggest that you choose one of the protocols as your "mainstay" and implement it on every machine (probably TCP because it runs on everything whereas DECnet and LAT don't). In that way you'll have a nice uniform method of going from one machine to any other machine, and you won't have to educate people on the special cases of going from one protocol to the other. -- Ken Bourque klb@philabs.philips.com ...!{uunet,ihnp4,decvax}!philabs!klb
tihor@acf3.NYU.EDU (Stephen W. Tihor) (01/20/88)
The ultrix group has annouced that Ultrix 2.0 ff have a non-transparent gateway (as an option) so that you can use an ultrix box running Decnet and LAT to allow allusers to make connections form one world to another. Relay-Version: version nyu B notes v1.5 12/10/84; site acf3.NYU.EDU From: rosenblg@acf3.NYU.EDU (Gary J. Rosenblum) Date: 19-Jan-88 12:53 EST Date-Received: 19-Jan-88 12:53 EST Subject: BOBCAT messages posted Message-ID: <2220005@acf3.NYU.EDU> Path: acf3!rosenblg Newsgroups: nyu.general Posting-Version: version nyu B notes v1.5 12/10/84; site acf3.NYU.EDU Organization: New York University The two messages sent out by 'mamon@acf4' regarding BOBCAT are erroneous. They apply ONLY to acf4, and that is due to a bug in acf4's telnet. Please disregard the messages. Gary Rosenblum Unix Systems Manager