Re: How to determine actual modem speed
Hi Dave, Thanx! I have an internal Dynalink and an external E-tech, both 56k. Do you have any advice for me how to tune them so that they communicate as fast as possible? Most likely I have to replace the Dynalink with an identical E-tech, but then? What mru and mtu should I try? And what mnp block size? There are three exchanges between the modems. I haven't spent much time messing around with these parameters, maybe a dejanews search would yield some relevent info. IIRC, you can't get a 56K connection unless one of the modems is directly connected to a digital phone line (i.e. on an ISP's rack), so if you are getting 33.6 that may be as good as it gets. I heard that before, so I asume that is true. :-[ Have to look at the parameters. Maybe a stupid question, but how can I send the command to the modem? I connect with the pppd and a chat script. After that minicom -o doesn't let me in: Device /dev/ttyS3 is locked. [...] That's why installed uucp, because cu doesn't do this. Later, I figured out that if you go into the Modem and Dialing Parameter Setup screen I could add the info command (I6) ahead of the Reset command (Z) I would get my info once as minicom sets up. Also while the device is locked? I'll try the uc command. Thanx for your help and information! Groetjes, Ookhoi
Re: How to determine actual modem speed
On Fri, Apr 09, 1999 at 09:27:40AM +0200, Ookhoi wrote: Is there a way to measure the actual speed at which a modem is connected? As modems negotiate the speed al the time, the CONNECT string at the start of the connection is not up to date some time later. Depending on your modem model, there's probably an AT command which will give this information. For my USR Courier, it's ATI6. My older modem was a Cardinal internal which IIRC used a Rockwell chipset, and used the command ATV1. Thanx! I have an internal Dynalink and an external E-tech, both 56k. Do you have any advice for me how to tune them so that they communicate as fast as possible? Most likely I have to replace the Dynalink with an identical E-tech, but then? What mru and mtu should I try? And what mnp block size? There are three exchanges between the modems. I haven't spent much time messing around with these parameters, maybe a dejanews search would yield some relevent info. IIRC, you can't get a 56K connection unless one of the modems is directly connected to a digital phone line (i.e. on an ISP's rack), so if you are getting 33.6 that may be as good as it gets. If I reset the Courier (ATZ), it will forget the speed. To get around this you can either use cu from the uucp package, or modify the modem init string in minicom from ATZ to ATI6Z. Maybe a stupid question, but how can I send the command to the modem? I connect with the pppd and a chat script. After that minicom -o doesn't let me in: Device /dev/ttyS3 is locked. [...] That's why installed uucp, because cu doesn't do this. Later, I figured out that if you go into the Modem and Dialing Parameter Setup screen I could add the info command (I6) ahead of the Reset command (Z) I would get my info once as minicom sets up. -- Dave Thayer Denver, Colorado USA [EMAIL PROTECTED] [EMAIL PROTECTED]
Re: How to determine actual modem speed
On Thu, Apr 08, 1999 at 08:48:44AM +0200, Ookhoi wrote: Is there a way to measure the actual speed at which a modem is connected? As modems negotiate the speed al the time, the CONNECT string at the start of the connection is not up to date some time later. Depending on your modem model, there's probably an AT command which will give this information. For my USR Courier, it's ATI6. My older modem was a Cardinal internal which IIRC used a Rockwell chipset, and used the command ATV1. If I reset the Courier (ATZ), it will forget the speed. To get around this you can either use cu from the uucp package, or modify the modem init string in minicom from ATZ to ATI6Z. your pal dave -- Dave Thayer Denver, Colorado USA [EMAIL PROTECTED] [EMAIL PROTECTED]
Re: How to determine actual modem speed
Is there a way to measure the actual speed at which a modem is connected? As modems negotiate the speed al the time, the CONNECT string at the start of the connection is not up to date some time later. Depending on your modem model, there's probably an AT command which will give this information. For my USR Courier, it's ATI6. My older modem was a Cardinal internal which IIRC used a Rockwell chipset, and used the command ATV1. Thanx! I have an internal Dynalink and an external E-tech, both 56k. Do you have any advice for me how to tune them so that they communicate as fast as possible? Most likely I have to replace the Dynalink with an identical E-tech, but then? What mru and mtu should I try? And what mnp block size? There are three exchanges between the modems. If I reset the Courier (ATZ), it will forget the speed. To get around this you can either use cu from the uucp package, or modify the modem init string in minicom from ATZ to ATI6Z. Maybe a stupid question, but how can I send the command to the modem? I connect with the pppd and a chat script. After that minicom -o doesn't let me in: Device /dev/ttyS3 is locked., although the manuals says: -o Do not initialize. Minicom will skip the initializa- tion code. This option is handy if you quitted from minicom without resetting, and then want to restart a session. It is potentially dangerous though: no check for lock files etc. is made, so a normal user could interfere with things like uucp... Maybe this will be taken out later. For now it is assumed, that users who are given access to a modem are responsible enough for their actions. Thank you for your reaction! Groetjes, Ookhoi
How to determine actual modem speed
Hi, Is there a way to measure the actual speed at which a modem is connected? As modems negotiate the speed al the time, the CONNECT string at the start of the connection is not up to date some time later. Thanx in advance! Groetjes, Ookhoi
