Date: Sat, 1 Mar 2008 13:35:29 -0800 (PST) From: Barney Cordoba <barney_cordoba@yahoo.com> To: Ingo Flaschberger <if@xip.at> Cc: net@freebsd.org Subject: Re: FBSD 1GBit router? Message-ID: <118554.84371.qm@web63903.mail.re1.yahoo.com> In-Reply-To: <alpine.LFD.1.00.0803012014350.20402@filebunker.xip.at>
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--- Ingo Flaschberger <if@xip.at> wrote:
> Dear Barney,
>
> > It seems absolutely ridiculous to buy such
> hardware
> > and not install a PCIx or 4x PCIe card for another
> > $100. or less. Saying a 1x is "fast enough" is
> like
> > saying a Celeron is "fast enough".
>
> The box is a small 1HE appliance and can boot from a
> CF-Card.
> I trust them more than a "al cheapo" pc.
> 1x axiomtek NA-820
> 1x P4 3Ghz cpu
> 1x 1gb ddr2
> ---
> 850eur without taxes.
>
> A good chipset, good cpu, good ram, good harddisk,
> god powersupply has
> same price.
> And don't forget that in exchanges you pay for each
> HE.
>
> And back to 1x is not fast enough:
> There are no 1gbit single port network cards that
> support more than 1
> lane, even if you plug it into a 16 lane slot.
> (and I'm not talking about 10gbit cards; if you have
> 10gbit upstream you
> have enough $$ to buy good gear)
>
Additionally, you're also doing I/O on the bus. You
have I/O and setup operations. Although they are small
bandwidth-wise, they interfere with transfers and
force gaps in your transfers. So you always need much
more bandwidth than your transfers.
Barney
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