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- Path: newsstand.cit.cornell.edu!intac!NewsWatcher!user
- From: dwall@intac.com (Dennis Wall)
- Newsgroups: comp.dcom.modems
- Subject: Re: USR Connection Speeds
- Date: Fri, 08 Mar 1996 11:05:48 -0500
- Organization: Off the Wall Productions
- Message-ID: <dwall-0803961105480001@192.0.2.1>
- References: <4hkqui$gm7@news-e2a.gnn.com>
- NNTP-Posting-Host: nile.intac.com
- X-Newsreader: Yet Another NewsWatcher 2.2.0b4
-
- In article <4hkqui$gm7@news-e2a.gnn.com>, PTHarn@gnn.com (PTH) wrote:
-
- > I have been trying to connect to AOL at higher than28.8 using compression but
- > always connect at 28.8. The AOL tech says that USR modems always report DCE
- > speeds so you don't see the higher throughput speeds. Does anyone know if
- > this is true and if so is there a way of telling what my throughput speeds
- > are? Thanks
-
- Yes and no. The tech is right in that the USR's default to reporting DCE
- speed, that is, the actual connect speed. This is the more useful number
- and will give an indication of the quality of the connection and download
- speeds to expect on that call. You can set the USR to report the DTE
- speed, but this is trivial because the DTE speed in the port speed that
- YOU set in your communications software, so you already know that speed -
- it is a given constant.
-
- The modem can not report "throughput speeds" per se. You must have the
- communications software actually calculate this (I don't believe AOL does
- this) or do it yourself. Download a file of known size and time it. You'll
- see that the transfer actually did proceed somewhat faster than 28.8. The
- actual transfer rate and amount of compression is very dependant on the
- file itself. Text files will compress a lot, binaries and stuffed and
- zipped files not much at all.
-
- --
- / the wall productions...........Dennis Wall
- f/ dwall@intac.com
- f/ http://www.intac.com/~dwall/offthewall.html
- o/ Providing Macintosh consulting since 1986
-