Re: modem RX rate is considerable slower than RX rate
try to disable the V90 protocol on the modem, the way v90 works is it
connects at the best speed it can, then after its connected if the line is
noisy it dynamically drops the speed without dropping the connection, the
speed can go back up after..but yeah sounds like it could be a
compadiblity issue with the isp
all i can suggest at this point is turn off V90 (see your modem docs to do
it, its usually one of the AT commands) and try again,
nate
On Thu, 6 Jan 2000, Shao Zhang wrote:
shao >aphro [nate@firetrail.com] wrote:
shao >> the subject is a little misleading :)
shao >
shao > sorry...
shao >
shao >>
shao >> is the server you are testing from a local server? within your ISP's
shao >> network?
shao >
shao > Neither.
shao >
shao >> what speed do you connect at(see /var/log/messages) and what kind
shao >> of file are you trying to transfer?(text? compressed? highly
shao >> compressed?) and what mode?(ascii/binary)
shao >
shao > It connects at 33600. It is a binary file.
shao >
shao >> and what client are you
shao >> using?(ftp/ncftp/lftp/wxftp..etc) have you tried other sites? which ones?
shao >
shao > lftp. I have also tried to use ftp, the same resutls.
shao >
shao >>
shao >> lots of questions to ask before i can help more. give more information!
shao >
shao > I think it is the modem's problem. I have a US Robotics V90
shao > modem, which I think the remote isp does not support it.
shao >
shao > In the chat script, if I use the initialise command ATZ, I am
shao > able to connect, but only at 33600.
shao >
shao > If I use the US Robotics V90's initialise command AT&F, I am
shao > able to get the line speed 46600, but then failed to
shao > authentificate with the remote end.
shao >
shao > What does not make sense is that, the TX rate is so much slower
shao > than RX rate.
shao >
shao > Thanks.
shao >
shao >Shao.
shao >
shao >> On Wed, 5 Jan 2000, Shao Zhang wrote:
shao >>
shao >> shao >Hi,
shao >> shao > when I ftp to a server, if I use the get command, I can get
shao >> shao > around about 4K/s. But with the same server, if I use the put
shao >> shao > command, I only get about 600bytes/s.
shao >> shao >
shao >> shao > I have checked /etc/ppp/options, and tried to set both mtu and mru
shao >> shao > to 1500, but did not solve the problem.
shao >> shao >
shao >> shao > Thanks for the help.
shao >> shao >
shao >> shao >Shao.
shao >> shao >
shao >
shao >--
shao >____________________________________________________________________________
shao >Shao Zhang - Running Debian 2.1 ___ _ _____
shao >Department of Communications / __| |_ __ _ ___ |_ / |_ __ _ _ _ __ _
shao >University of New South Wales \__ \ ' \/ _` / _ \ / /| ' \/ _` | ' \/ _` |
shao >Sydney, Australia |___/_||_\__,_\___/ /___|_||_\__,_|_||_\__, |
shao >Email: shao@cia.com.au |___/
shao >_____________________________________________________________________________
shao >
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