Internet connection speeds

[Gareth Burgess]

Could someone tell me, what the speed which the 2 little computers in the
bottom right corner of the screens are reporting, as the connection speed.

Is it the speed that you are connected to the ISP
or that your modem is communicating with your motherboard.

Thankyou.

[Andy Furnell]

In article <87v3un$j...@jupiter.gre.ac.uk>, bg...@gre.ac.uk says...

This is a speed which is agreed by your modem and your ISP as the speed
of connection.. so it is the speed at which you are connected to your
ISP, however especially in the case of modems, this is usually
horifically inaccurate... generally speaking, on a 56 kbps modme you can
expect actual connect speeds of around 38-46 kbps

--

Andy

[Eric]

Unfortunately although it is supposed to be the speed of the link between
the modem and ISP most modems don't seem to bother telling the computer
this so the speed is in fact the speed of the link between the modem and
the motherboard.

Eric Bunyan

Andy Furnell <fur...@softhome.net> wrote in article
<MPG.130d20dbf...@news.clara.net>...

[Andy Furnell]

In article <01bf7465$645871a0$LocalHost@bunyan>, ericb...@bigfoot.com
says...

> Unfortunately although it is supposed to be the speed of the link between
> the modem and ISP most modems don't seem to bother telling the computer
> this so the speed is in fact the speed of the link between the modem and
> the motherboard.

Not wishing to start a flame war here, but surely the speed at which the
modem connects to the motherboard is fixed by the type of serial port
used (if any), and with the case of a PCI modem (ugh), would be in the
region of 33 MB/sec?

--

Andy

[Bob Brown]

Hi...

I have seen some configurations which always report that they are connected
at 115200 bps. I believe there is a modem command which tells the modem to
report the connection rate on CONNECTs rather than the baud rate between the
motherboard and the modem.

Setting the baud rate to higher than the modem can actually connect at is
for use with data compression as the PC sends the info to the modem at a
higher rate and the modem handles compression on the fly.

For example, if you have a 33k6 modem and you set the baud rate to 33600
(not sure if this is a standard baud rate), compression would be minimal as
the modem would always be waiting for the bytes from the PC and there's no
point compressing them to send them accross the line.

If however the baud rate is set to 56000 (or higher), the modem's internal
buffer can fill up then it (the modem) can process the data and send it to
the other side with data compression.

If you think that's complex - take a look at a lattice diagram which
describes the voltages/tones/states etc used for modem communication!

My 56k modem normally connects to my ISP at 49,333 baud - the highest I have
seen is 50,666 baud. If I run it on my other phone line, the connection
goes down as far as 24,600 baud. Ouch.

Cheers,

- Bob -

---
Bob Brown, bo...@clear.net.nz, Guru Extraordinaire
Computer Tutor, Programmer, Technician, Consultant etc ...
PO Box 880, Napier. http://homepages.paradise.net.nz/~bobb

Eric wrote in message <01bf7465$645871a0$LocalHost@bunyan>...

>Unfortunately although it is supposed to be the speed of the link between
>the modem and ISP most modems don't seem to bother telling the computer
>this so the speed is in fact the speed of the link between the modem and
>the motherboard.
>

>Eric Bunyan

[cartman]

Hi,
The problem with the modem not reporting the correct speed, if it always
report that you are connected at 115200 bps, try changing the drivers.
Usually you get this when using "standard" drivers for modem.

/cartman