[geeks] Firewalls...

Joshua D. Boyd geeks at sunhelp.org
Fri Mar 23 01:17:20 CST 2001


I think there are a few that run linux.  Still, I'm not sure that I'd want
to run anything on a 32 proc intel machine. 

Anyway, the question is what would the price of 2 PCI bus board be
compared to a good enough Sun.

BTW, how do non Intel PCI platforms (PPC, Sun, SGI, etc) deal with
interupts?  Do they adopt the Intel insanity about IRQs, or do they
dispense with IRQs altogether?  Whatever they do, is can't Intel platforms
design mobos to adopt the same solution?

--
Joshua Boyd

On Thu, 22 Mar 2001, Chris Byrne wrote:

> It is, but that isn't supported in any of the standard consumer and low end
> commercial chipsets.
> 
> In order to get mutiple PCI busses you need one of the highly parallel
> chipsets that were developed for large scale SMP servers on intel. The
> smallest one I've seen with multiple PCI busses was an 8 way with 2 busses.
> 
> These things are INCREDIBLY expensive, and you dont get a lot of bang for
> your buck. I mean who wants to run a 32 processor server with NT (generally
> the only OS these large scale platforms support)
> 
> Chris Byrne
> 
> 
> 
> -----Original Message-----
> From: geeks-admin at sunhelp.org [mailto:geeks-admin at sunhelp.org]On Behalf
> Of Joshua D. Boyd
> Sent: Thursday, March 22, 2001 21:55
> To: geeks at sunhelp.org
> Subject: RE: [geeks] Firewalls...
> 
> 
> Err, meant to say multiple pci buses.  My head isn't screwed on quite
> straight today.
> 
> --
> Joshua Boyd
> 
> On Fri, 23 Mar 2001, Joshua D. Boyd wrote:
> 
> > Can't one get PC motherboards with multiple PCI slots.
> >
> > --
> > Joshua Boyd
> >
> > On Thu, 22 Mar 2001, Chris Byrne wrote:
> >
> > > David,
> > >
> > > As long as you don't put more than 5 pci cards in you are generally OK.
> Some
> > > motherboards can handle six reliably, some cant. Of course it depends on
> > > your MoBo and the overall composition of your hardware and software.
> > >
> > > That's the thing about PC hardware that makes it so difficult to
> properly
> > > support. There are so many variables, different configuations of
> hardware
> > > and software etc... that knowing all of the possible issues is
> essentially
> > > impossible.
> > >
> > > And then of course we also get back inot the PCI bus bandwidth
> inadequacies
> > > issue.
> > >
> > > Chris Byrne
> > >
> > > -----Original Message-----
> > > From: geeks-admin at sunhelp.org [mailto:geeks-admin at sunhelp.org]On Behalf
> > > Of David Cantrell
> > > Sent: Thursday, March 22, 2001 17:02
> > > To: geeks at sunhelp.org
> > > Subject: Re: [geeks] Firewalls...
> > >
> > >
> > > On Thu, Mar 22, 2001 at 12:49:56PM -0600, Clay Mellender wrote:
> > >
> > > > Actually, the IP Chains and IP masquerading built into linux is very
> > > > robust. I have been using it for years, and it performs very well,
> even
> > > > on a 486 with 20 Mb of ram. Ping times are very good, and with some of
> > > > the package enhancements there are some very powerfull features.
> > >
> > > I'm not denying that - in fact, I do the same.  But I am wary about
> trying
> > > to run too many interfaces on Linux, simply because PC hardware is a bit
> > > crap.
> > >
> > > --
> > > David Cantrell | root at alphacomplex.org |
> http://www.cantrell.org.uk/david/
> > >
> > >     This is a signature.  There are many like it but this one is mine.
> > >
> > > ** I read encrypted mail first, so encrypt if your message is important
> **
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