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6 total messages Started by Roger Sun, 22 Mar 1998 00:00
Modem connection speed - how to tell?
#1470
Author: Roger
Date: Sun, 22 Mar 1998 00:00
14 lines
915 bytes
How can I tell what speed I have negotiated with the modem on connection?
OT/PPP always reports a connect speed of 57600 (impossible with my 33.6
teleport platinum) which is the maximum possible with the serial port on my
5200.

I know at times I am connected at a much lower speed and would like to
disconnect and dial again, but there doesn't seem to be any way to confirm
what's going on.

If anyone knows of any utilities to monitor connect speed I'd be grateful.

regards
Rog
Re: Modem connection speed - how to tell?
#1471
Author: Peter Ceresole
Date: Sun, 22 Mar 1998 00:00
24 lines
1491 bytes
In article <B13AEFEA9668294E3@rogjack.demon.co.uk>,
Roger@rogjack.demonSPAM.co.uk (Roger) wrote:

>How can I tell what speed I have negotiated with the modem on connection?
>OT/PPP always reports a connect speed of 57600 (impossible with my 33.6
>teleport platinum) which is the maximum possible with the serial port on my
>5200.

Somewhere in your modem settings or in OT/PPP you must be able to make the
program report either the computer to modem speed (DTE) or the connect
speed. I'm afraid that, using FreePPP and a Courier, I can't help much on
this. But it must be switchable somewhere.

Hmmm. That was rather useless...

But the point is that you shouldn't have to use another utility to get what
you want; the modem can report the connect speed and OT/PPP can show it. I
have a friend who uses a teleport platinum PCMCIA card on her Powerbook,
with OT/PPP, and she sees the transmit speed every time. Those are the
default settings; she hasn't had to change anything to see it.

-- 
Peter
Re: Modem connection speed - how to tell?
#1472
Author: ric
Date: Sun, 22 Mar 1998 00:00
25 lines
1436 bytes
Roger <Roger@rogjack.demonSPAM.co.uk> wrote:

> How can I tell what speed I have negotiated with the modem on connection?
> OT/PPP always reports a connect speed of 57600 (impossible with my 33.6
> teleport platinum) which is the maximum possible with the serial port on my
> 5200.
> 
> I know at times I am connected at a much lower speed and would like to
> disconnect and dial again, but there doesn't seem to be any way to confirm
> what's going on.
> 
> If anyone knows of any utilities to monitor connect speed I'd be grateful.
> 
Generally OT/PPP seems to report the actual connection speed. What
OT/PPP does is determined by the modem script, somewhere in modem
scripts inside the extensions folder. I'd suggest looking at the script
to see what to change, or download the modem script generator from
apple.
My teleport platinum 33.6 uses a script from global villages web site,
and reports actual connection speed. If you mail me, I'll mail it to
you.

-- 
'ric
Re: Modem connection speed - how to tell?
#1473
Author: Rebecca and Rowland
Date: Sun, 22 Mar 1998 00:00
54 lines
2857 bytes
Roger <Roger@rogjack.demonSPAM.co.uk> wrote:

> How can I tell what speed I have negotiated with the modem on connection?
> OT/PPP always reports a connect speed of 57600 (impossible with my 33.6
> teleport platinum) which is the maximum possible with the serial port on my
> 5200.

This isn't the maximum serial port speed available on your 5200.  It's
the maximum serial port speed that you can select with a call to the
standard serial driver built into the OS.  The maximum serial port speed
available on you 5200 is exactly the same as any other Mac including the
original 128K thin Mac - 230400 bit/s internally clocked and 920000
bit/s externally clocked.  (admittedly the 8MHz 68000 Macs can't read in
data at anything over about 500000 bit/s no matter what you do - the
serial port really is too fast for those machines).

If you get FreePPP, you'll find that you can select a higher serial port
speed if you want to.  I find that using a serial port speed of 115200
bit/s on my Performa 475 gives me a significant speed increase when
compared to 57600 bit/s, also using a GV 33.6 modem.

> I know at times I am connected at a much lower speed and would like to
> disconnect and dial again, but there doesn't seem to be any way to confirm
> what's going on.
> 
> If anyone knows of any utilities to monitor connect speed I'd be grateful.

OT/PPP and FreePPP will both (I think) tell you what the modem has told
them.  In this case, your modem is set to report the serial port speed.

If you (in the case of OT/PPP) add w2 to the modem init string in the
modem script, you should get the telephone line speed reported.  You can
edit (a copy of!) the connection script with more or less any text
editor.

I use this init string with FreePPP and my GV 33.6 modem:

at &f1 w2 l0

Which gives me reliable connections (to a different ISP), connection
speed reports, and a quiet burst of jabbering from the moden during
connection negotiation.

The AT command reference you (probably) got with your modem has the
details of all the things you can do.

Rowland.

-- 
Remove the animal for my email address:   rebecca@astrid.dog.u-net.com
Sorry - the spam got to me.          
PGP pub key A680B89D; fingerprint: F5605EAE F56F2C0B 818F3319 5227767F
                                   What?  Don't ask me - I don't know.
Re: Modem connection speed - how to tell?
#1306
Author: Simon Slavin
Date: Tue, 24 Mar 1998 00:00
23 lines
1466 bytes
In article <B13AEFEA9668294E3@rogjack.demon.co.uk>,
Roger@rogjack.demonSPAM.co.uk (Roger) wrote:

> How can I tell what speed I have negotiated with the modem on connection?
> OT/PPP always reports a connect speed of 57600 (impossible with my 33.6
> teleport platinum) which is the maximum possible with the serial port on my
> 5200.

Maybe you're using a very strange modem configuration.
OT/PPP reports back exactly what the modem told it when it connected.
My USR modem connects at different speeds (31.2 or 33.6 usually) and
each time the OT/PPP control panel tells me what speed it connected
at /that time/.

It would appear that your modem is configured always to announce
connections at 57600.  Some modem manufacturers provide such a setting
so that their modems appear to be working faster than they really are.

Simon.
-- 
Simon Slavin, using a temporary setup.
I may have missed incoming mail but should see new mail from now.
Re: Modem connection speed - how to tell?
#1336
Author: Richard Buckle
Date: Sat, 28 Mar 1998 00:00
27 lines
1544 bytes
In article <B13DF0E1966863687@hearsay.demon.co.uk>,
slavins.at.hearsay.demon.co.uk@localhost (Simon Slavin) wrote:

>> OT/PPP always reports a connect speed of 57600 (impossible with my 33.6
>> teleport platinum)...
>
>...
>
>It would appear that your modem is configured always to announce
>connections at 57600.  Some modem manufacturers provide such a setting
>so that their modems appear to be working faster than they really are.

Not quite. Global Village modems return the DTE speed only, unless you
include W1 or W2 in the init string.

Maybe you have the wrong modem script selected in your modem control panel.
My 33.6 teleport platinum is happiest with a script called "GV 28.8/33.6
for ATA 2.1 OT/PPP" and correctly reports the DCE speed.

Richard.


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