Date: 17 Mar 98 08:14:08 +0100 From: leifn@image.dk (Leif Neland) To: freebsd-questions@FreeBSD.ORG Subject: Re: Best IDSN? Message-ID: <772_9803172015@swimsuit.swimsuit.roskildebc.dk> References: <Pine.SOL.3.96.980316155214.13004S-100000@mamba.cs.Virginia.EDU>
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At 16 Mar 98 21:59:08 "Adrian T. Filipi-Martin" wrote regarding Re: Best IDSN? "T> I have decided to go with an external TA now using a "T> ByteRunner 16650 I.O board. "T> "T> I looked into the Bitsurfer Pro, and it only claims to "T> do 128KBaud on the I/O port, where as the Courier I claims it "T> can deal with 230.4KBaud. I understand why you might want to "T> pump that much data through the I/O port to a modem with "T> compression, but I find this a bit puzzling for ISDN. "T> "T> When running over ISDN, you can get PPP (VJ & BSD) "T> compression, but that doesn't affect the amount of data going to "T> the TA, right? It is compressed/decompressed in the OS. If you bundle 2B-channels, you can get 128K, so the standard speed of 115200bps is not enough. So the port at least need to run 230400bps. Also, everything is not ppp, even in isdn-land. Somebody also uses isdn for modem-replacements, running X75, or V110H/L. Here the TA does the compression, so eg. ZyXel's can do 460Kbps, usefull if you transmit plain compressable data. Leif Neland leifn@image.dk --- |Fidonet: Leif Neland 2:234/49 |Internet: leifn@image.dk To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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