Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!nstar!larry
From: larry@nstar.rn.com (Larry Snyder)
Newsgroups: comp.dcom.modems
Subject: Re: Slip over T1000's
Message-ID: <1991Apr07.144948.956@nstar.rn.com>
Date: 7 Apr 91 14:49:48 GMT
References: <155@blekko.UUCP>
Organization: NSTAR Unix Conferencing System - 8 lines - 1400 newsgroups
Lines: 27

skrenta@blekko.UUCP (Rich Skrenta) writes:

>We're experimenting with SLIP over Telebit T1000's and we're getting
>pretty choppy response.  An rlogin over a direct connect slip line
>seems faster than over the Telebit.  Are there any registers that
>can be tweaked to improve slip performance?

>Does V.32 do a better job with slip?  How much does slip spoofing in
>the T2500 help?

yes - the PEP modems (T2000 and PLUS) at best give around 400 cps
using SLIP while V.32 should run around 1100

The problems with the PEP modems are the lack of v.32bis and the
inability to lock the DTE at 38400 (I understand their current
T1600 supports 38400).

We use a pair of USR V.32/v.32bis modems here with the DTE locked
at 38400 over a leased line and get 3.x kb/sec doing ASCII
transfers and from 1.3 to 2.0 kb/sec doing binary transfers
using ftp.  v.32bis will increase the throughput by around 50%
over V.32.

-- 
   Larry Snyder, NSTAR Public Access Unix 219-289-0287 (HST/PEP/V.32/v.42bis)
                        regional UUCP mapping coordinator 
               {larry@nstar.rn.com, ..!uunet!nstar.rn.com!larry}