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- Xref: sparky comp.sys.hp:10372 comp.sys.dec:4969 comp.os.vms:14992
- Path: sparky!uunet!think.com!camb.com!bruce
- From: bruce@camb.com (Barton F. Bruce)
- Newsgroups: comp.sys.hp,comp.sys.dec,comp.os.vms
- Subject: Re: Allowing DecServer terminals to use HP9000's
- Message-ID: <1992Sep14.042615.39999@camb.com>
- Date: 14 Sep 92 04:26:15 EDT
- References: <1992Sep8.190051.1587@candle.uucp> <10SEP199217363605@vxcrna.cern.ch>
- Organization: Cambridge Computer Associates, Inc.
- Lines: 41
-
- > In article <1992Sep8.190051.1587@candle.uucp>, root@candle.uucp (Bruce Momjian) writes...
- >A VMS system has over 200 terminals connected via DecServer200/300/500's
- >to a VAX/VMS system using LAT over ethernet. They are adding an HP9000
- >system running HP-UX and want to know the best way to allow those
- >terminals to use the HP and VMS systems.
- >
-
- The DECServer 300s are ok, but you will need recent versions of the s/w that
- support TCP/IP.
-
- If you don't need to support a LOT of sessions, and have some spare DS300
- as well as spare DS200 and/or DS500 ports, you can do a simple and crude
- connection such as the following. Have a service called HP offered on some
- spare ports of DS200 and DS500 boxes - ones with MODEM COMTROL. These
- will be outgoing - reverse LAT. A short 'null-modem' like cable connects
- each of these to a spare DS300 port for normal inbound service.
-
- You can set these DS300 ports either of 2 ways. They could be dedicated and
- any access is immediately connected to the HP system, or let the users
- connect to ANY TCP/IP destination.
-
- The newer DS700 would be good for any additions, and on the 'used' market I have
- seen NEW 16 port ones for ~$2400 which is down near .edu or ISV pricing.
- Try ELI's in Cambridge.
-
- The modem control you get on the 16 port one IS adequate. The 8 port one
- with full modem control is for use in obsolete countries where
- officialdom dictates things they should stay out of.
-
- There IS user confusion about the RJ45 connector now in use on the
- DS700-16 and the small number of modem leads that can assume different
- functions. I got a copy of an internal DEC memo and the .PS of a nifty
- manual from DS700 prod mgmt that is now posted on DECUSERVE (with
- explicit permission). Between these 2 docs, what is going on is TOTALLY
- clear. I wish DEC had done this earlier rather than MMJ nonsense.
-
- I just created a [.DS700] directory in our FTP tree at camb.com and
- stuck these files (and more) there.
-
- There is also a DECie's answer there on how to tie SLIP ports together between
- 2 DS700s at different sites to link the 2 sites for TCP/IP traffic.
-