FBSD 1GBit router?

[Barney Cordoba]

--- Ingo Flaschberger <if at 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)

Ok, well I've never seen a router with 1 port.  I
thought we were talking about building a router? 

The lack of PCIe cards is a good reason to consider a
PCIX machine. On the systems that we have, the 1x PCIe
ports are a lot slower than a PCI-X card in the slot.

You need 4Gb/s of throughput to handle a gigablt
router. (1 GB/s full duplex times 2).  1x is 4Gb/s
maximum. In my view, you always need twice the
bandwidth on the bus to avoid contention issues.

Barney


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