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Subject: Re: RS485 communicatio
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Pavel Machek <pavel@ucw.cz>
Cc: Ed Vance <EdV@macrolink.com>, "'Linux PPP'" <linuxppp@indiainfo.com>,
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On Sat, 2003-03-15 at 19:46, Pavel Machek wrote:
> > I believe Point-to-Point Protocol only supports point-to-point symmetric
> > links. Don't think there is any multi-point support in the protocol. IIRC,
> > PPP also requires a full duplex link, which is not available on an RS-485
> > link with more than two stations, even if it is a 4-wire link. 
> 
> Get scarabd (I don't know *where* it is), it can run TCP/IP over slip over
> half-duplex link. Performance is not too good.

Robin O'Leary wrote most of it, so its probably somewhere like
caderus.co.uk

Half duplex performance is fine at a sensible speed and with decent
reliability. On radio will collisions its a lot less pretty

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