[CentOS] 10 GBASE-T

Pasi Kärkkäinen pasik at iki.fi
Thu Jan 14 08:08:55 UTC 2010

On Wed, Jan 13, 2010 at 02:31:09PM -0800, nate wrote:
> 10GbE is really cheap these days(cheaper than 1GbE in some cases
> on a per Gb basis) if you need faster performance, and simple
> to configure, I wrote a blog on this a couple of months ago:
> http://www.techopsguys.com/2009/11/17/affordable-10gbe-has-arrived/

This reminded me of something. I remember reading some website 
(possibly Cisco's) earlier, and they mentioned 10 GBASE-T had 
much higher latency than other 10 Gbit options.

Have you paid attention to this? How big is the difference nowadays? 
Or I wonder if it was just on some specific product..

http://en.wikipedia.org/wiki/10_Gigabit_Ethernet says:

"10GBASE-T has higher latency and consumes more power than other 10
gigabit Ethernet physical layers. In 2008 10GBASE-T silicon is now
available from several manufacturers with claimed power dissipation 
of 6W and a latency approaching 1 microsecond"

1 microsecond doesn't sound bad.. :)

-- Pasi

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