Re: ISDN Support
Dave Cinege writes:
On 21 Apr 1997 03:58:51 -, Richard Sharman wrote:
Dave Cinege writes:
...
Aaaa! And you are using this with linux? Are you sure it is opening
the
16650 at 230K?
Well, I *think* so. How can I tell? I use setserial with spd_cust
and a divisor of 1 with the card jumpered to a base of 3.6864 Mhz;
this is supposed to produce 230.4K. Before doing that, using spd_vhi
giving 115000 bps I tell the Bitsurf the speed is now 230400. I then
switch speeds and the bitsrfr responds. It no longer talks to me if I
talk to it at 115000. In fact, it often resets when I do.
Hmmm, this doesn't sound right. Sorry but this is getting beyond my
knowledge. I've never even used spd optionsmy file looks like this:
STD_FLAGS=session_lockout ^fourport
SETSERIAL=/bin/setserial
echo -n Configuring serial ports
${SETSERIAL} -b /dev/ttyS0 uart 16550A port 0x3F8 irq 4 ${STD_FLAGS}
${SETSERIAL} -b /dev/ttyS1 uart 16550A port 0x2F8 irq 3 ${STD_FLAGS}
${SETSERIAL} -bg /dev/ttyS*
In ppp.options_out I just set a rate of 115200 and everything seems to work
fine with my modem. I assumed all you would have to do is change the rate in
this file to 230400.
Anybody know whats going on here?
I'm certainly interested because I intend to be getting a byte runner 16650
card and ISDN TA in a about a week.
I didn't think that the speed parameter actually did anything in pppd.
A quick look at the code shows that it seems to actually set the speed.
I tried changing it to 23. It didn't produce any error (nor log),
but the ip-up script was now called with $3 (the speed) of 0, prevoiusly
it was 38400. Actually, it's not that simple. I'm using diald, so
the speed is specified as a diald option not a pppd option.
The documentation from Byte Runner is a bit skimpy on details (but at
least they did have a Linux directory on their disk, containing a
recent version of setserial).
This is what I found from experimenting, in case it helps. If anyone
knows anything different, plesae let me know. Assuming you have the
card jumped to the middle base frequency (3.6874 MHz), then:
- if you DON'T set the baud_base parameter on setserial
- setting the speed with stty of N gives you 2*N, e.g. an
stty 9600 /dev/ttyS2 gives a speed of 19200.
- if you DO set baud_base to 230400 with setsetserial, then
what you set with stty is what you get.
So one method of getting the card to be 230400 is to leave baud_base
at its default of 115200, do a setserail spd_vhi and use 38400 as the
speed.
However, if you want any other speed you have to remember to half the
value!
Alternatively, if you set baud_base to 230400 then speed up to 38400
are ok as is, spd_vhi give you 115200. To get 230400, you have to
(I think!) use spd_cust and set the divisor to 1.
It seemed to me that if you want to go lower and use something other
than spd_cust you must also set divisor to 0. It seems that if the
divisor is non zero this overrides everything else.
Richard
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Re: ISDN Support
Dave Cinege writes: Until recently I just used the built-in serial ports, which are 16650a limited to 115000 bps. I have recently bought a Byte Runner card and am talking to the Bitsurfr at 230400 bps. Have I noticed a big Aaaa! And you are using this with linux? Are you sure it is opening the 16650 at 230K? difference? No. I've started trying some tests, and will switch back to 115000 and see if it I can measure any difference. There are typically delays at so many points its hard to get consistent results. Subjectively (very!) 2 channels are faster than 1, but not twice as fast. They sure aremaybe the serial ISN'T opening past 115K. Well, I *think* so. How can I tell? I use setserial with spd_cust and a divisor of 1 with the card jumpered to a base of 3.6864 Mhz; this is supposed to produce 230.4K. Before doing that, using spd_vhi giving 115000 bps I tell the Bitsurf the speed is now 230400. I then switch speeds and the bitsrfr responds. It no longer talks to me if I talk to it at 115000. In fact, it often resets when I do. -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: ISDN Support
On 21 Apr 1997 03:58:51 -, Richard Sharman wrote:
Dave Cinege writes:
Until recently I just used the built-in serial ports, which are 16650a
limited to 115000 bps. I have recently bought a Byte Runner card and
am talking to the Bitsurfr at 230400 bps. Have I noticed a big
Aaaa! And you are using this with linux? Are you sure it is opening the
16650 at 230K?
difference? No. I've started trying some tests, and will switch back
to 115000 and see if it I can measure any difference. There are
typically delays at so many points its hard to get consistent results.
Subjectively (very!) 2 channels are faster than 1, but not twice as
fast.
They sure aremaybe the serial ISN'T opening past 115K.
Well, I *think* so. How can I tell? I use setserial with spd_cust
and a divisor of 1 with the card jumpered to a base of 3.6864 Mhz;
this is supposed to produce 230.4K. Before doing that, using spd_vhi
giving 115000 bps I tell the Bitsurf the speed is now 230400. I then
switch speeds and the bitsrfr responds. It no longer talks to me if I
talk to it at 115000. In fact, it often resets when I do.
Hmmm, this doesn't sound right. Sorry but this is getting beyond my
knowledge. I've never even used spd optionsmy file looks like this:
STD_FLAGS=session_lockout ^fourport
SETSERIAL=/bin/setserial
echo -n Configuring serial ports
${SETSERIAL} -b /dev/ttyS0 uart 16550A port 0x3F8 irq 4 ${STD_FLAGS}
${SETSERIAL} -b /dev/ttyS1 uart 16550A port 0x2F8 irq 3 ${STD_FLAGS}
${SETSERIAL} -bg /dev/ttyS*
In ppp.options_out I just set a rate of 115200 and everything seems to work
fine with my modem. I assumed all you would have to do is change the rate in
this file to 230400.
Anybody know whats going on here?
I'm certainly interested because I intend to be getting a byte runner 16650
card and ISDN TA in a about a week.
Dave 'Kill a Cop' Cinege (aka Psychopath #3) --- Super Genius at Large
The Oklahoma City Federal building bombing -
Americas first response to government abuse
http://www.psychosis.com/
Libertarian Party 1-800-682-1776http://www.lp.org/
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Re: ISDN Support
Kevin Traas writes: I have a Motorola Bitsurfr Pro (external). It works fine under Linux; it looks like a modem. (It has a zillion AT commands.) Thanks for the info. Just a couple of questions grin What type of serial port do you have? 16550? How fast are you running the serial connection? Higher than 115,200bps? Do you connect at 64K or 128K or either? (Apologies if I should have replied privately rather than following up. I'm not sure if anyone else on this list is interested...) Until recently I just used the built-in serial ports, which are 16650a limited to 115000 bps. I have recently bought a Byte Runner card and am talking to the Bitsurfr at 230400 bps. Have I noticed a big difference? No. I've started trying some tests, and will switch back to 115000 and see if it I can measure any difference. There are typically delays at so many points its hard to get consistent results. Subjectively (very!) 2 channels are faster than 1, but not twice as fast. When I connect to work I always use 2 channels (if I can, sometimes it only connects with 1; I'm not sure why). Since when connecting to my ISP I have to pay per-channel per-time I often connect with just 1 channel. Since I have a static address and ISDN connect time is quite fast compared with an analog I can disconnect and reconnect differently (e.g. to download a large file I might switch to 2-channel operation). My connect file sees if a specific file exists, and based on that connects with 1 or 2 channels. From what I have read, an ISDN router is a much nicer route to go, but costs more; at least 50% more and up (way up). The Linux Journal usually has an ad for an internal ISDN board with drivers for Linux; Spellcaster - http://spellcast.com . Canada probably has a National ISDN protocol of it's own No, I don't think so. I live in Canada and my Bitsurfr is working! Actually, there is one model of Bitsurfr for Canada/US, and another for elsewhere (or is it just Europe? I'm not sure). One thing I'm interested in is configuring things so that I can establish a 1 or 2 B channel connection on demand. My ISP supports Multilink PPP; therefore, I'd like to set things up so that if I know I'm going to be needing all the bandwidth I can get, I'll establish the connection using the two B channels. I think many routers can change 1 or 2 operations on the fly, but I'm not sure. An ISDN-card might let you (especially if you had the source to the driver!!!). (It would be great if the Linux box could be set to timeout after a period of bandwidth saturation, drop the single B channel connection, and then reconnect using both B channels) You might be able to hack diald to do this. However, if your ISP assigns you a dynamic IP address you might run into problems. With a static IP address you can drop the connection and call back (within a limited time) and still talk to the telnet or ftp session. With a dynamic address the other end would think you were a different person and so you'd lose your connection. I think. Richard. -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: ISDN Support
Oops! I wrote The Linux Journal usually has an ad for an internal ISDN board with drivers for Linux; Spellcaster - http://spellcast.com . That should have been http://www.spellcast.com/ I don't know anything about the card, but they do support Linux: From their web page: November 6/96 -- SpellCaster ISDN adapter drivers to be added to Linux 2.1.X kernel release. SpellCaster Telecommunications Inc. is today announcing that it's ISDN4Linux based driver is being added to the growing list of drivers shipping with the Linux 2.1.X development kernel release. We are proud to support and participate in the Linux project and are excited about this event. November 4 -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: ISDN Support
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Re: ISDN Support
On 20 Apr 1997 04:49:53 -, Richard Sharman wrote: Kevin Traas writes: I have a Motorola Bitsurfr Pro (external). It works fine under Linux; it looks like a modem. (It has a zillion AT commands.) Thanks for the info. Just a couple of questions grin What type of serial port do you have? 16550? How fast are you running the serial connection? Higher than 115,200bps? Do you connect at 64K or 128K or either? (Apologies if I should have replied privately rather than following up. I'm not sure if anyone else on this list is interested...) Until recently I just used the built-in serial ports, which are 16650a limited to 115000 bps. I have recently bought a Byte Runner card and am talking to the Bitsurfr at 230400 bps. Have I noticed a big Aaaa! And you are using this with linux? Are you sure it is opening the 16650 at 230K? difference? No. I've started trying some tests, and will switch back to 115000 and see if it I can measure any difference. There are typically delays at so many points its hard to get consistent results. Subjectively (very!) 2 channels are faster than 1, but not twice as fast. They sure aremaybe the serial ISN'T opening past 115K. -- Elite MicroComputers 908-541-4214 http://www.psychosis.com/emc/ -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: ISDN Support
On Sat, 19 Apr 1997 13:03:21 -0700, Kevin Traas wrote: We ended up getting a Zyxel TA128U. It's an external and we're only using one channel and it works just fine. Any external should work as long as it supports PPP Sync-to-Async conversion. You just set up a dial script and once you get CONNECT you return from the chat script and off it goes. It works flawlessly for us here and I see up to 6.5KB/sec transfer rates (one B channel, not two). Thanks for the info. One thing I'm interested in is configuring things so that I can establish a 1 or 2 B channel connection on demand. My ISP supports Multilink PPP; therefore, I'd like to set things up so that if I know I'm going to be needing all the bandwidth I can get, I'll establish the connection using the two B channels. (It would be great if the Linux box could be set to timeout after a period of bandwidth saturation, drop the single B channel connection, and then reconnect using both B channels) This is handled by the TA. www.zyxel.com The other problem I've got is in using an external ISDN TA and both B channels is that I'm going to have to have a high-end serial port that supports 230,400bps or more if possible Right now, the Linux box I'm using to connect to my ISP is only using a 16450 UART. I'll have to upgrade that, too. I wonder if I can drive a 16550 beyond 115,200 No but a 16650 can got to 460K. www.byterunner.com I'm just not sure there is a linux driver for them Dave 'Kill a Cop' Cinege (aka Psychopath #3) --- Super Genius at Large The Oklahoma City Federal building bombing - Americas first response to government abuse http://www.psychosis.com/ Libertarian Party 1-800-682-1776http://www.lp.org/ -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: ISDN Support
Kevin Traas wrote: After doing some Web browsing and reading docs, Howto's, etc. I haven't found too much information (at least that I was hoping for) on using ISDN on Linux. Specifically, I currently have a USR Sportster 128K sitting here in the box. I'd like to use it in my Debian Linux system. (Running 1.2.8) From what I've found, only a few ISDN TA's seem to be supported under Linux and they're all European brands that I've never heard of before (in my limited existance... grin...) and that don't seem to be readily available here in Canada. Are other ISDN TA's supported by Linux? i.e. USR Sportster ISDN, Motorola Bitsurfer Pro, etc. TIA for your help, Does the Sportster 128K come in external variety? I went round and round with USR trying to get them to give me specs so that I could write a Linux driver for this card. They eventually told me that an outside company had written the SCO software driver and that I should talk to them. That company ignored my emails consistently. We ended up getting a Zyxel TA128U. It's an external and we're only using one channel and it works just fine. Any external should work as long as it supports PPP Sync-to-Async conversion. You just set up a dial script and once you get CONNECT you return from the chat script and off it goes. It works flawlessly for us here and I see up to 6.5KB/sec transfer rates (one B channel, not two). Ascend Communications is rumored to be writing a NetBSD driver for their ISDN card, so maybe they'll do one for Linux?! -- Jens B. Jorgensen [EMAIL PROTECTED] -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: ISDN Support
-BEGIN PGP SIGNED MESSAGE- On Fri, 18 Apr 1997, Kevin Traas wrote: Specifically, I currently have a USR Sportster 128K sitting here in the box. I'd like to use it in my Debian Linux system. (Running 1.2.8) Is it an external box that you need to connect to a serial port. In this case use it like a normal modem with AT commands. If it's an ISA card it won't be supported. The problem is the D-channel protocol. They are not very much standardized. Europe has a few national ones and DSSS1 aka Euro ISDN, the USA have two one of which is NI-1. There is work underway to integrate NI-1 in isdn4linux. This would make many passive cards work with Linux in the USA too. It's a bit different with active cards that manage the D-channel protocol by themselves, but there are only two supported, ICN (also a European brand, and I suppose they only talk the German national protocol and the European one) and Spellcaster. From what I've found, only a few ISDN TA's seem to be supported under Linux and they're all European brands that I've never heard of before (in my limited existance... grin...) and that don't seem to be readily available here in Canada. Canada probably has a National ISDN protocol of it's own Nils - -- \ /| Nils Rennebarth --* WINDOWS 42 *-- | Schillerstr. 61 / \| 37083 Göttingen | ++49-551-71626 Micro$oft's final answer | http://www.nus.de/~nils -BEGIN PGP SIGNATURE- Version: 2.6.3i Charset: noconv iQB1AwUBM1jXd1ptA0IhBm0NAQHuQAMAomkHsr53eTQaODJZms8IlsEUeqzzusTQ R2eWmGUPoN3QVI8udyFzoHSdUwxKAIvViUWC6Gva4vq3y2lIsIlxok4c9doMUnDh ty8bZpHETPdOCfaG3nI0BeRvPpehaiTM =Ikmt -END PGP SIGNATURE- -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: ISDN Support
I have a Motorola Bitsurfr Pro (external). It works fine under Linux; it looks like a modem. (It has a zillion AT commands.) Thanks for the info. Just a couple of questions grin What type of serial port do you have? 16550? How fast are you running the serial connection? Higher than 115,200bps? Do you connect at 64K or 128K or either? TIA, Kevin Traas Systems Analyst Edmondson Roper CA http://www.eroper.bc.ca -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: ISDN Support
After doing some Web browsing and reading docs, Howto's, etc. I haven't found too much information (at least that I was hoping for) on using ISDN on Linux. Specifically, I currently have a USR Sportster 128K sitting here in the box. I'd like to use it in my Debian Linux system. (Running 1.2.8) Does the Sportster 128K come in external variety? I went round and round with USR trying to get them to give me specs so that I could write a Linux driver for this card. They eventually told me that an outside company had written the SCO software driver and that I should talk to them. That company ignored my emails consistently. Right now, I'm pretty sure USR only provides the Sportster as internal. We ended up getting a Zyxel TA128U. It's an external and we're only using one channel and it works just fine. Any external should work as long as it supports PPP Sync-to-Async conversion. You just set up a dial script and once you get CONNECT you return from the chat script and off it goes. It works flawlessly for us here and I see up to 6.5KB/sec transfer rates (one B channel, not two). Thanks for the info. One thing I'm interested in is configuring things so that I can establish a 1 or 2 B channel connection on demand. My ISP supports Multilink PPP; therefore, I'd like to set things up so that if I know I'm going to be needing all the bandwidth I can get, I'll establish the connection using the two B channels. (It would be great if the Linux box could be set to timeout after a period of bandwidth saturation, drop the single B channel connection, and then reconnect using both B channels) The other problem I've got is in using an external ISDN TA and both B channels is that I'm going to have to have a high-end serial port that supports 230,400bps or more if possible Right now, the Linux box I'm using to connect to my ISP is only using a 16450 UART. I'll have to upgrade that, too. I wonder if I can drive a 16550 beyond 115,200 Ascend Communications is rumored to be writing a NetBSD driver for their ISDN card, so maybe they'll do one for Linux?! Wouldn't it be nice? And much easier on all of us... grin Maybe a little pressure (i.e. read demand from the Linux community) would entice them to do so. Thanks alot for the info, Jens Kevin Traas Systems Analyst Edmondson Roper CA http://www.eroper.bc.ca -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: ISDN Support
snip The problem is the D-channel protocol. They are not very much standardized. Europe has a few national ones and DSSS1 aka Euro ISDN, the USA have two one of which is NI-1. There is work underway to integrate NI-1 in isdn4linux. This would make many passive cards work with Linux in the USA too. It's a bit different with active cards that manage the D-channel protocol by themselves, but there are only two supported, ICN (also a European brand, and I suppose they only talk the German national protocol and the European one) and Spellcaster. Canada probably has a National ISDN protocol of it's own A. Don't you just love standards? Thanks for the info. Kevin Traas Systems Analyst Edmondson Roper CA http://www.eroper.bc.ca -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
