On Thu, Dec 03, 2009 at 07:45:54PM +0000, FRLinux wrote:
> Hello,
> 
> I have two questions about the ixgb driver.
> 
> I saw it supports [1] some oldish Intel 10g cards. Do you know if it
> might support more recent ones? (such as specifically: 10g XF SR [2]
> or NetEffect SFP+SR [3]).
> 

The 10g XF SR (if it is based on the PCI-express Intel 82598 controller)
is supported by the ix(4) driver. No idea about the NetEffect ones - I
think they need some other driver (which may get supported if developers
get hands on such cards - hint hint).

> Also, when i registered on this list about a year ago, there had been
> a thread on replacing a cisco 6500 with OpenBSD, and there were mixed
> views at the time about how OpenBSD would perform in serious 10g
> traffic [4]. So if anyone has experience about such a setup (and
> hardware recommendations), I'd love to hear from them.
> 

I consider a Cisco 6500 as a pure L2 switch (the L3 capabilities of the
6500 are pure joke even if you invest tonns of money into a SUP720 or
bigger and the huge CAMs (but that's then normaly called a 7600)).
Now OpenBSD's bridge(4) has no chance against a L2 switch. L3 is a
different story and I think the old thread still covers that.
Some people claim it is possible to move > 10Gbps traffic through a
OpenBSD box (I for myself am unable to even produce that ammount of
traffic so I can't verify).
In short, know your numbers, get good HW, tune a bit and check if it fits
your need. Last but not least don't push knobs you don't understand.

-- 
:wq Claudio

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