home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!usc!wupost!gumby!destroyer!ncar!noao!arizona!arizona.edu!cerritos.edu!nic.csu.net!zeus!hliao
- From: hliao@zeus.calstatela.edu (Henry Liao)
- Newsgroups: comp.sys.sun.admin
- Subject: Summary: 14.4k modem on Sun 4/380
- Keywords: high speed modem, sun, communication
- Message-ID: <1992Sep2.113922.2562@nic.csu.net>
- Date: 2 Sep 92 18:39:21 GMT
- References: <1992Aug27.131153.2535@nic.csu.net>
- Organization: Cal State University, Los Angeles
- Lines: 44
- Nntp-Posting-Host: zeus.calstatela.edu
-
- In article <1992Aug27.131153.2535@nic.csu.net>, hliao@zeus.calstatela.edu (Henry Liao) writes:
- |> Here is a query to the wisdom of Sun administrators on the net.
- |> I've connected a 14.4k data/fax modem w/ V.{32,32bis,42,42bis} and MNP2-5
- |> on a Sun 4/380 running 4.1.2.
- |>
- |> Question 1:
- |> How should I configure /etc/{ttytab,gettytab} for the optimal throughput?
- |> I tried 'Auto-baud' and various baud rates on the Sun, but my 386PC w/ a
- |> similar 14.4k modem (supports all compression protocols) always negotiate to
- |> 14.4k. It doesn't matter if the speed is set to 9600-57600 on either ends.
- |>
- |>...deleted...
- Many thanks to those who responded. I haven't tried netfax yet,
- but will summarize later if interests arise.
-
- Here is what I've done to get it to work.
-
- Configure the modem on the Sun w/ the following options (prefix w/ AT):
- &Q5 Configured for V.42/V.42 bis operation
- %C1 Enable MNP class 5 operation
- \J0 Turn off DTE baud rate adjustment
-
- Create an entry in /etc/ttytab:
- ttyj0 "/usr/etc/getty new.19200" dialup on hardcar remote
-
- I use a rotary table for testing of various speeds in /etc/gettytab:
-
- n1200|new.1200|NDial-1200:\
- :sp#1200:ht:ms=crtscts:nx=d2400:
- ...
- n19200|new.19200|NDial-19200:\
- :sp#19200:ht:ms=crtscts:nx=d38400:
- n38400|new.38400|NDial-38400:\
- :sp#38400:ht:ms=crtscts:nx=d1200:
-
- kill -1 1 # to restart ttys
-
-
- -Henry Liao o
- California State University, Los Angeles )>
- Networks & Distributed Systems Group ___./]___
- VOICE: (213) 343-4537, 343-4530 hliao@calstatela.edu
- FAX: (213) 343-4575 hliao@csula.bitnet
- #include <std/disclaimer.h>
-