Why isnt Cat6 AKA 10gb Ethernet common enough yet?

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ho1Aetoo
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PostPosted: Wed Aug 25, 2021 6:27    Post subject: Reply with quote
https://www.netgear.com/de/business/wired/switches/unmanaged/xs508m/

Power Consumption
(Max and Standby/(Link down) 39W/21,31W


https://www.netgear.com/de/business/wired/switches/unmanaged/gs308v3/

Power Consumption
(Max and Standby/Link down) 3.04W/0.36W

regarding 1GbE swtiches with SFP+ ports you would have to look what you can find there, but they mostly have PoE

(therefore not comparable power)
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Gameman Advanced Kid
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PostPosted: Wed Aug 25, 2021 14:50    Post subject: Reply with quote
That did not answer my question. I am asking about Ethernet switches vs. SFP+ switches in general.

Does a 10gbe switch use more power as you plug more things into it? Does it stay cool when idle?

Or does it always use the same amount of power while making the same amount of heat even if there is no load on it?

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ho1Aetoo
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PostPosted: Wed Aug 25, 2021 15:24    Post subject: Reply with quote
Quote:
Does a 10gbe switch use more power as you plug more things into it? Does it stay cool when idle?

Or does it always use the same amount of power while making the same amount of heat even if there is no load on it?


??????

So I have searched out 2 switches for you.
But you can read yourself?

xs508m = 8 port 10GbE

Standby / Link down = 21,31W (consumes a minimum of 21.31W)

Maximal = 39W (all Ports active)

gs308v3 = 8 port 1GbE

Standby / Link down = 0.36W (consumes a minimum of 0.36W)

Maximal = 3.04W (all Ports active)

Surely a NIC or switch consumes more when a cable is connected and Link ist Up.
But it depends on the chip itself.......
and I am not Google

but I can tell you that there are lowpower chipsets e.g. the Intel i219-lm (Ultra Low Power at cable disconnect (<1 mW))

And as I said you have to search for SFP+ routers yourself


Last edited by ho1Aetoo on Wed Aug 25, 2021 16:25; edited 1 time in total
Gameman Advanced Kid
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PostPosted: Wed Aug 25, 2021 15:42    Post subject: Reply with quote
Ah my bad. I am a bit blind and deaf. Was looking all over the page but could not find the info I was looking for.

i know about the SFP+ routers/switches though so I am good there.

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ho1Aetoo
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PostPosted: Wed Aug 25, 2021 16:09    Post subject: Reply with quote
is usually somewhere in the data sheet (on the netgear page > technical data > documents > data sheet)

https://www.netgear.com/de/media/XS505M_XS508M_DS_tcm151-59932.pdf

https://www.netgear.com/de/media/300-Series_Gigabit_DS_tcm151-77420.pdf

https://ark.intel.com/content/www/us/en/ark/products/82185/intel-ethernet-connection-i219-lm.html

https://www.marvell.com/content/dam/marvell/en/public-collateral/ethernet-adaptersandcontrollers/marvell-ethernet-adapters-aqtion-aqn107-product-brief.pdf

Typical Power Consumption • 6 W at 10 Gbps, 4W at 5 Gbps full length 100 m Cat6a

You have to search a bit, sometimes it's not easy to find such information


But one can hope that the chips will become more efficient in the future

For example, the first 1GbE chips from intel had a 150nm lithography and also consumed a few watts.
egosumumbravir
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PostPosted: Wed Dec 08, 2021 10:27    Post subject: Reply with quote
Gameman Advanced Kid wrote:
Why hasnt Cat6 become more common in the home? Are there not enough people interested in having an awesome LAN network AT LEAST for the sheer giggles of it?

10G-BaseT ethernet has remained stubbornly expensive (on many fronts) and little progress has been made in the last decade towards making it consumer friendly. I've been watching with interest and hope.

Basically, it takes a lot of electrical and computational power to jam 10gbit down a copper ethernet cable.
Direct-attach SFP (also copper cable) is barely noticeable milliwatts. Optical 10g runs 0.4-0.7w. Top-notch modern 10g cards need 3.5w minimum and more if the cable is longer.

In the enterprise, 10GbT has not had a lot of acceptance. 10g twisted pair copper cabling is very thick, very expensive, prone to crosstalk over length and a dead-end speed-wise.
A pair of 2mm jacket fibres suffers none of those problems, takes up much less space and currently can support anything from 10mbit to 50gbit at lengths copper can only dream of. Fibre is cheaper than copper on every metric.

Aquantia got all exciting there in 2017/18 with disrupting the industry with smaller, lower power and cheaper 10g, but their products are pretty poor and since being acquired by Marvell, have pretty much been killed off.

Gameman Advanced Kid wrote:
NVME drives on the other hand are capable of doing 3,500MBps. thats around 28gbps.

Modern PCIe4 units can do nearly double that. 50gbit network needed.

ho1Aetoo wrote:
and honestly don't know where the problem is with 1gbit LAN
1Gbit LAN allows transfer rates of ~111MegaBytes/second
that is 60GB in 10Min

Faster to sneakernet it with USB/TB NVMe drives.
Hell, even modern high-capacity spinning rust can exceed 1gbit by a long way.

ho1Aetoo wrote:
10HD movies in 10min are too slow?

Or most of one UHD BluRay. Sucks when you want to move a few of those around.

ho1Aetoo wrote:
i doubt that the average consumer cares

That is entirely true. Certainly they do not care enough to throw the extra money required for 10G

Gameman Advanced Kid wrote:
That did not answer my question. I am asking about Ethernet switches vs. SFP+ switches in general.

Does a 10gbe switch use more power as you plug more things into it? Does it stay cool when idle?

Yes, every active port increases the power draw & heat production on all kinds of switches.

SFP+ & fibre 10g is crazy cheap now. Enterprise is dumping all their 10g gear because it's too slow and not readily compatible with 25/50/100g gear - and they only have so much physical space in the pipes, cable trays and holes in the walls to feed data through. Why waste 4mm^2 on doing 10g when you can jam 5x that bandwidth in the same space?
Plus why waste 10 watts on a measly 10gbit when that same 10 watts can run a 200/400g optical module?

10g optical modules and fibres are so cheap, they're cheaper than copper at any great length. It's nuts.
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