Why is Mac Studio's 10G network speed limited to 1G during video file transfers?

The setting [√] ABV/AEV mode selected on the hardware pane of advanced Wi-Fi Ethernet OR in your Router may constrain the connection in unexpected ways that could limit overall performance. The feature is used ONLY for prioritizing “live” camera video streams over Ethernet

Actual Speed:

The good way to check the actual connection speed USED to be Network Utility, But in Catalina and later, Apple has deprecated Network Utility and now you have to use a Terminal command to see your actual connection speed. First, you need to know what en number the link is. then you use a command like this one, substituting the actual en number.

my main Ethernet connection uses BSD name en2 (as shown in) :

 menu > about this Mac > (system report) > network:

Aquantia AQC107-B0:

Name: ethernet

Type: Ethernet Controller

Bus: PCI

Slot: Slot-3

Vendor ID: 0x1d6a

Device ID: 0x87b1

Subsystem Vendor ID: 0x1d6a

Subsystem ID: 0x0001

Revision ID: 0x0002

Link Width: x4

BSD name: en2

Kext name: AppleEthernetAquantiaAqtion.kext

Location: /System/Library/Extensions/IONetworkingFamily.kext/Contents/PlugIns/AppleEthernetAquantiaAqtion.kext

Version: 1.0.64

Terminal command:

ifconfig en2 | grep media

with this as my output for 10 Gigabit Ethernet:

media: 10Gbase-T <full-duplex,flow-control>

For ‘regular’ Gigabit Ethernet, you should get this instead:

media: 1000baseT <full-duplex,flow-control>

Errors detected:

To see if an Ethernet link is throwing more than a handful of initial errors, you can use Terminal command:

netstat -I en2

This is the resulting output. Counters are In-packets, In-errors, Out-packets, Out-Errors, Collisions. There should never be more than handful of errors from starting up, and in most cases, NONE.

Name       Mtu   Network       Address            Ipkts Ierrs    Opkts Oerrs  Coll

en2   8163  <Link#4>    00:01:d2:1a:00:dd   696697     0   484301     0     0

en2   8163  grantsmacpr fe80:4::461:ea0d:   696697     -   484301     -     -

en2   8163  192.168.0/23  192.168.0.204     696697     -   484301     -     -

Reading the top line, If the link were running beyond its ability to run and be stable, for example it auto-speeded to 10Gb but the cabling could only reliably support 2.5Gb, we would see non-zero errors counts, and errors increasing over time. (and possibly, disconnecting)

<< The cable, port, and transceiver has been tested and proven to support 10G. >>

That certainly cuts down on some issues.

The default setting on the Mac for 10G Ethernet is auto-speed. if you have yours set to auto-speed, what speed did it ACTUALLY connect at?

the procedure I provided uses a few commands was to determine EXACTLY at what speed it connected.

The other alternative is to use Advanced Hardware Settings and deliberately specify 10G Internet. if it can nit attain that speed for some reason, you get no connection instead, and can then chase down WHY.

interesting graphic.

What software produces that?

Have you already verified that you are actually looking at Ethernet data? On my different model Mac with built-in Ethernet, en2 is a Wi-Fi interface as shown in

Option-AppleMenu > System Information > Network

<< there is no such thing as "WiFi ethernet", so I'm not sure what you mean by that >>

So sorry, the word 'OR' was admitted due to by sloppy typing. the idea is that, unless you are doing feeds of Video from LVE cameras, the

The setting [√] ABV/AEV mode

should NOT be selected,

<< There is nothing throttling the speed, other than what's happening in the Mac. >>

I never disputed that.

What MIGHT be happening is ERRORS on the link.

I provided a simple method for reading out the error counters in the Mac to see if link errors was the issue.