Drivers for FORE systems cards under FreeBSD
Terry Lambert
terry at cs.weber.edu
Fri May 26 16:11:27 PDT 1995
> > Much as I hate generalisations .. I would warn that ATM and IP apparently do
> > not mix well in cases where good interactive response is critical, at least
> > in my limited experience. I get better response over my own overworked 14k4
> > modem connection to the net than over a (university based) 2 megabit ATM
> > link.
>
> This is not a general problem with ATM, and I tend to say that it's
> because there are other users on the 2Mb ATM than you.
>
> It's certainly not an argument against ATM...
Poul's right. It's an argument against bandwidth overcommit.
Which is an argument against non-virtual circuit transports for virtual
circuit traffic.
THAT's the argument against ATM.
On the other hand, ATM and Frame Relay source quench doesn't really
work well with TCP/IP, since TCP/IP doesn't recognize it as a valid
congestion control mechanism. Arguably, the problem is in TCP/IP.
Except it came first.
Terry Lambert
terry at cs.weber.edu
---
Any opinions in this posting are my own and not those of my present
or previous employers.
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