Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watmath!clyde!rutgers!ll-xn!mit-eddie!dca
From: dca@mit-eddie.UUCP
Newsgroups: comp.unix.questions,comp.sys.dec
Subject: DMF32/BSD Experience?
Message-ID: <5744@eddie.MIT.EDU>
Date: Thu, 7-May-87 14:53:13 EDT
Article-I.D.: eddie.5744
Posted: Thu May  7 14:53:13 1987
Date-Received: Sat, 9-May-87 06:24:12 EDT
Reply-To: dca@eddie.MIT.EDU (David C. Anderson)
Distribution: world
Organization: MIT, EE/CS Computer Facilities, Cambridge, MA
Lines: 15
Xref: utgpu comp.unix.questions:1956 comp.sys.dec:158



We are getting a number of 2400 baud modems for our VAX 750 running
BSD 4.3, and are concerned that the overhead of servicing our DZ11 will
start to eat a substantial part of the machine.  One solution may be
to get a DMF32, which wins by hacking DMA.

Has anybody had experience with the differences in using these two
devices?  Can you recommend an alternative (low cost) solution that
might work better?  Does the BSD driver handle the DMF32 reasonably?

Please reply by mail to me, since I don't regularly read netnews.

					dca@eddie.mit.edu
					!seismo!mit-eddie!dca