I’ve a 2019 Mac Professional (Sonoma 14.2.1) that’s plugged right into a 10GB ethernet swap. The opposite finish can be plugged right into a 10GB swap. Regardless of which course, iPerf3 is reporting that I am solely getting 1.10GBytes Switch and 943Mbits/sec bandwidth. I’ve confirmed the switches are working as iPerf reviews ~7Gbits/sec between two different servers.
I’ve disabled all ethernet and wifi connections besides the one I am testing.
I’ve ensured Jumbo Frames have been enabled on the native swap (I additionally tried one other native swap that’s 10GB solely).
I’ve ensured Jumbo (9000) is chosen on the interface MTU.
I’ve tried each AVB/EAV mode enabled and disabled.
I’ve ensured all cables are Cat6+
The velocity is acknowledged as 10GB when set to auto (however when set to auto, MTU stays at 1500, so the remainder of the testing has been finished with interface set to Handbook, 10Gbase-T, full-duplex, Jumbo(9000) MTU).
No proxies or QOS or VLAN’s or something fancy. Restrict IP handle monitoring is disabled.
Identical velocity whether or not operating iperf consumer or server on Mac. The opposite finish I am testing on are a few CentOS containers. The two centos containers are seeing 10GB speeds between themselves and are passing by way of the opposite 10GB swap.
Any concepts what could possibly be inflicting this subject? I had gotten 10GB speeds previously however moved stuff round and simply reconnected the 10GB stuff this morning.
