On 28/05/2014 10:16 PM, Russell Coker wrote:
> Has anyone had any experience with 10GigE?
>
> I'm not after anything at all complex, just a single server that needs
> something a little faster than GigE talking to a single switch that can spread
> the bandwidth over 12+ GigE ports.
The Intel 10GigE cards are well supported under Linux. There is the X520 
series with Direct Attach SFP+/Twinax and the X540 supports 10GBASE-T 
over Cat6 (55m) / Cat6a (100m). Both come in single and dual port versions.

The signal processing and coding for 10GBASE-T is very intense; hence 
the X540 has a heatsink rivaling that of a low end video card. DA-SFP+ 
is the preferred cabling method for 10GigE, it isn't as power intensive, 
and is a bit cheaper too. The downside is above a couple of metres you 
need active cables which get a bit more expensive
>
> As an aside, I think it would be nice if someone developed an Ethernet card
> and switch as one combined device.  It would be a PCIe card that looks to the
> system like a regular Ethernet port connected to a 4 port switch with the only
> software visible difference being that it had 4* the bandwidth of a regular
> Ethernet port.
>
Have you looked at 802.3ad / Link Aggregation? This might achieve the 
outcome you want - more throughput when you have many clients taking to 
the same server, without the expense of 10GigE NICs and switches.
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