Date: Thu, 30 Aug 2001 00:44:39 -0700 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Stephen Wenzler" <s.wenzler4@verizon.net>, <freebsd-questions@FreeBSD.ORG> Subject: RE: Special instructions for ISDN Message-ID: <002a01c13127$9fcbbe60$1401a8c0@tedm.placo.com> In-Reply-To: <3B8CFC90.1E8F57F5@verizon.net>
next in thread | previous in thread | raw e-mail | index | archive | help
I'm basing the following on my experiences attempting to configure the Motorola Bitsurfer to multilink, as well as configuring many other ISDN devices, such as the Ascend Pipeline, the 3com Office Connect, the Cisco 700 and 800 series, and the Intel 8xxx series. I don't disagree that there is a way to get the Motorola Bitsurfer to multilink on an asynchronous serial port on a PC. The Bitsurfer manuals talk in glowing terms about the device's ability to use Asynchronous Inverse Multiplexing, which is needed to crush the 128K datastream of bonded/multilinkedPPP ISDN into the maximum speed of 115k of a garden variety PC serial port. I'll allow that somewhere in some lab, someone got this to work once. But in the 16-20 hours I spent screwing with the damn things (which included, by the way, getting the latest ROM's from Motorola shipped out) I was never able to accomplish this - and this was a textbook ISDN circuit, because it was TWO of these devices on the ends of TWO different ISDN links that were dialing into each other. I've since decided that all ISDN Terminal Adapters, such as the Bitsurfer, the 3com ISDN Impact, and the US Robotics Courier I-modem, are worthless wastes of time if you want to run multilink on them. They are fine for 64K 1-channel but that's it. Do yourself a favor and dump the Bitsurfer, and replace it with a used Ascend Pipeline 75 that's hooked to an Ethernet adapter in your FreeBSD system. Pipelines can be had for very cheap off Ebay. While the Ascend's are a bit complex to program, it's nothing that should be a problem for anyone interested in UNIX. Ted Mittelstaedt tedm@toybox.placo.com Author of: The FreeBSD Corporate Networker's Guide Book website: http://www.freebsd-corp-net-guide.com >-----Original Message----- >From: owner-freebsd-questions@FreeBSD.ORG >[mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Stephen Wenzler >Sent: Wednesday, August 29, 2001 7:31 AM >To: freebsd-questions@FreeBSD.ORG >Subject: Special instructions for ISDN > > >I wonders since I succed in getting the installation via FTP successful, >I can only able to get one B channel on Bitsurfr Pro EZ to estilibished >so I wonders how can I realiable get 2 B channels to work to install the >FreeBSD, so is there a special instructions that I should do pior to >starting connecting to ISP and download? otherwise, I'll stuck with one >B channel during the installation. > >Thanks! > > >-- >WWW: http://stephenw4.tripod.com >Email: stephenw4@netzero.net >AIM: S Wenzler >ICQ: 124608891 > >**for sale* >I have a bunch of items for sale on eBay, click this link below: >http://cgi6.ebay.com/aw-cgi/eBayISAPI.dll?MfcISAPICommand=ViewListedI tems&userid=stephenw1&include=0&since=-1&sort=2&rows=25 **update** Effective immedately, I have new email address on my new ISP which is: s.wenzler4@verizon.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?002a01c13127$9fcbbe60$1401a8c0>