4 ms·
> to limit power draw (and heat) Yes. Did you ever been in an actual DC and handled 10G-T cables and ports? They are hot, even in the DC with HVAC running bel
by justsomehnguy 2y ago
> to limit power draw (and heat)
Yes. Did you ever been in an actual DC and handled 10G-T cables and ports?
They are hot, even in the DC with HVAC running below 20°C.
And there is only one type of the systems which can easily accept that amount amount of heat - the desktop *ATX systems, for which you can just go and buy a 10G PCI-E card.
For everything else the amount of heat is too much.
- justinclift 2y agoDACs don't seem to have that problem.
- justsomehnguy 2y agoDAC definitely has that problem too. One cable in an ideal condition probably wouldn't be that hot, but as soon as something is not ideal it would get hot. Also you are just throwing everything here now, DAC is totally not "we can have 10G for free". As others has said, the main benefit of 1G/2.5G is what it uses the same twisted pair => 8p8c connector. 10G DAC is SFP+. This alone prevents the mass adoption in the consumer sector - too much friction for Regular Joe.
- justinclift 2y ago> Also you are just throwing everything here now ... ?
- gorkish 2y agoSo yeah I do deal with 10GBaseT sometimes. IMO its mostly an economies-of-scale issue. 802.3an is up against some physical limits, but there have been many improvements even since the first products hit the market. The newer PHYs used in the newest multirate SFP+/BaseT transceivers, for instance are not nearly as hot as the old 1st gen products. More users = more incentive to fix the problem. I wonder if it might be possible via software/firmware hack to unlock the 5G/10G rates on any existing 2.5G chipset?