Are you actually using any 2.5G devices? A few of us over @ servethehome are all having similar performance issues w/ 2.5GbE adapters.
2.5G USB-C adapter on PC, IPolex SFP+ module on a Mikrotik switch, 10G DAC ConnectX-3 on Ubuntu Server 19.10.
Late reply, but I finally got a chance to play with the AQN-107 and how it plays with the Netgear switches, namely the MS510TX.
On an aside Ubuntu 20.0.4 LTS (server version) works flawlessly out of the box, no compiling of drivers needed. So does windows, it pulled the driver automatically while i was still on my 1G nic. .
VM -> VM Host -> (SFP+) -> MS510TX -> (10G RJ45) -> MS510TXPP -> (2.5G/5G RJ45) -> PC
(Yes lots of hops but I am lazy and I wanted to do an end to end lol)
2.5G
Code:
Connecting to host 192.168.3.93, port 5201
[ 4] local 192.168.3.252 port 46076 connected to 192.168.3.93 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 281 MBytes 2.36 Gbits/sec 94 427 KBytes
[ 4] 1.00-2.00 sec 280 MBytes 2.35 Gbits/sec 79 296 KBytes
[ 4] 2.00-3.00 sec 280 MBytes 2.35 Gbits/sec 61 373 KBytes
[ 4] 3.00-4.00 sec 280 MBytes 2.35 Gbits/sec 41 383 KBytes
[ 4] 4.00-5.00 sec 280 MBytes 2.35 Gbits/sec 72 294 KBytes
[ 4] 5.00-6.00 sec 280 MBytes 2.35 Gbits/sec 33 379 KBytes
[ 4] 6.00-7.00 sec 280 MBytes 2.35 Gbits/sec 61 380 KBytes
[ 4] 7.00-8.00 sec 280 MBytes 2.35 Gbits/sec 60 291 KBytes
[ 4] 8.00-9.00 sec 276 MBytes 2.32 Gbits/sec 73 385 KBytes
[ 4] 9.00-10.00 sec 280 MBytes 2.35 Gbits/sec 34 378 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 2.73 GBytes 2.35 Gbits/sec 608 sender
[ 4] 0.00-10.00 sec 2.73 GBytes 2.35 Gbits/sec receiver
Right where we expect it.
5G
Code:
Connecting to host 192.168.3.95, port 5201
[ 4] local 192.168.3.252 port 37572 connected to 192.168.3.95 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 529 MBytes 4.43 Gbits/sec 1112 389 KBytes
[ 4] 1.00-2.00 sec 557 MBytes 4.67 Gbits/sec 1188 379 KBytes
[ 4] 2.00-3.00 sec 546 MBytes 4.58 Gbits/sec 1056 385 KBytes
[ 4] 3.00-4.00 sec 557 MBytes 4.67 Gbits/sec 1011 426 KBytes
[ 4] 4.00-5.00 sec 552 MBytes 4.63 Gbits/sec 1175 433 KBytes
[ 4] 5.00-6.00 sec 524 MBytes 4.40 Gbits/sec 976 395 KBytes
[ 4] 6.00-7.00 sec 557 MBytes 4.67 Gbits/sec 1311 375 KBytes
[ 4] 7.00-8.00 sec 549 MBytes 4.60 Gbits/sec 1255 399 KBytes
[ 4] 8.00-9.00 sec 509 MBytes 4.27 Gbits/sec 1142 590 KBytes
[ 4] 9.00-10.00 sec 529 MBytes 4.44 Gbits/sec 1247 395 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 5.28 GBytes 4.54 Gbits/sec 11473 sender
[ 4] 0.00-10.00 sec 5.28 GBytes 4.53 Gbits/sec receiver
Bit slower than expected should be ~4.75.
I really do think the # of Retr is tied to having a faster network push to a slower one. The same 5G in reverse
Code:
Connecting to host 192.168.3.95, port 5201
Reverse mode, remote host 192.168.3.95 is sending
[ 4] local 192.168.3.252 port 37582 connected to 192.168.3.95 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 561 MBytes 4.70 Gbits/sec
[ 4] 1.00-2.00 sec 561 MBytes 4.71 Gbits/sec
[ 4] 2.00-3.00 sec 561 MBytes 4.71 Gbits/sec
[ 4] 3.00-4.00 sec 561 MBytes 4.71 Gbits/sec
[ 4] 4.00-5.00 sec 561 MBytes 4.71 Gbits/sec
[ 4] 5.00-6.00 sec 561 MBytes 4.71 Gbits/sec
[ 4] 6.00-7.00 sec 561 MBytes 4.71 Gbits/sec
[ 4] 7.00-8.00 sec 561 MBytes 4.71 Gbits/sec
[ 4] 8.00-9.00 sec 561 MBytes 4.71 Gbits/sec
[ 4] 9.00-10.00 sec 561 MBytes 4.71 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 5.48 GBytes 4.71 Gbits/sec 0 sender
[ 4] 0.00-10.00 sec 5.48 GBytes 4.71 Gbits/sec receiver
Is perfect.
I even get them on 1G to onboard Intel Nic
Code:
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 1.10 GBytes 943 Mbits/sec 111 sender
[ 4] 0.00-10.00 sec 1.10 GBytes 942 Mbits/sec receiver
Anyways I can confirm that the MS510 are indeed working properly in Mutigig mode.