[AusNOG] 10GBase-T SFP modules?

[James Andrewartha]

On Thu, 10 Jul 2014, Beeson, Ayden wrote:

> I think very soon we will see an explosion of 10G base-T as well, given 802.11AC is ramping up, Wave 2 will definitely require
> it.

Not really. To get >1Gbps throughput with 802.11ac, you need wide channels 
and lots of MIMO or MU-MIMO. Eg 4SS at 80MHz will give you a physical rate 
of 1.7Gbps, if you're sitting in the same room as the AP. But you won't 
get 100% of that rate in real life, no enterprise is going to use 80MHz 
channels anyway, and even one wall in between the client and the AP will 
drop the rate significantly. Plus what sort of client application uses a 
solid 1Gbps apart from file transfers?

So maybe some guy with a top of the line laptop downloading Linux ISOs 
will need 10GBASE-T to the AP, but everyone else will be fine with 1Gbps. 
Particularly MU-MIMO, since that'll be people's phones with 1SS which 
won't be doing 250Mbps each.

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