Alan,

I find that a little surprising, considering that I use a 486-66 for my home
firewall.  I've never really noticed any network slowdown because of it, and
it's considerably slower than any S/390 system that can run Linux/390.  Do
you have some references for this that I could read to increase my
understanding?  I've been suggesting putting firewalls on Linux/390, and I
don't want to continue doing that if it's the wrong thing to do.

The latency critical part I understand, but if you're on a zSeries machine,
HiperSockets should avoid that problem, I would think.

Mark Post

-----Original Message-----
From: Alan Cox [mailto:[EMAIL PROTECTED]]
Sent: Sunday, April 07, 2002 9:31 AM
To: [EMAIL PROTECTED]
Subject: Re: How to use Linux/S390


> person-high racks of equipment used for firewalling.  With the firewall
> capabilities in a 2.4 kernel, combined with technology like Hipersockets
and
> Gigabit OSA Express, it should be feasible to run a capable Linux firewall
> in a couple of LPARs (or guests under VM).  Obviously this makes more
sense

I would be very suprised if it was. A firewall tends to be very cpu and
latency critical rather than about bulk I/O throughput. Maybe it works but
I'd like to see the evidence.
-snip-

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