I have the following hardware:
Dell 6248, 2848
HP 1810-48G J9660A, HP A5820X JC202A
2 x HP DL380P G8 with 2x 10G ethernet LOM ports using DAC connected to the JC202A (teamed windows server)
Workstation with X520-DA2 connected to JC202A
iperf3 Stats Server 1 to workstation
Accepted connection from 192.168.1.201, port 49962
[ 5] local 192.168.1.213 port 5201 connected to 192.168.1.201 port 49963
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 160 MBytes 1.35 Gbits/sec
[ 5] 1.00-2.00 sec 170 MBytes 1.42 Gbits/sec
[ 5] 2.00-3.00 sec 136 MBytes 1.14 Gbits/sec
[ 5] 3.00-4.00 sec 172 MBytes 1.44 Gbits/sec
[ 5] 4.00-5.00 sec 168 MBytes 1.41 Gbits/sec
[ 5] 5.00-6.00 sec 169 MBytes 1.41 Gbits/sec
[ 5] 6.00-7.00 sec 153 MBytes 1.28 Gbits/sec
[ 5] 7.00-8.00 sec 165 MBytes 1.39 Gbits/sec
[ 5] 8.00-9.00 sec 172 MBytes 1.44 Gbits/sec
[ 5] 9.00-10.00 sec 173 MBytes 1.45 Gbits/sec
[ 5] 10.00-10.02 sec 3.01 MBytes 1.37 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.02 sec 1.60 GBytes 1.37 Gbits/sec receiver
Server 2 to workstation
PS D:\Downloads\iperf3.9_64> .\iperf3.exe -c 192.168.1.213
Connecting to host 192.168.1.213, port 5201
[ 5] local 192.168.1.242 port 50018 connected to 192.168.1.213 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 144 MBytes 1.21 Gbits/sec
[ 5] 1.00-2.00 sec 156 MBytes 1.31 Gbits/sec
[ 5] 2.00-3.00 sec 158 MBytes 1.33 Gbits/sec
[ 5] 3.00-4.00 sec 164 MBytes 1.38 Gbits/sec
[ 5] 4.00-5.00 sec 157 MBytes 1.31 Gbits/sec
[ 5] 5.00-6.00 sec 161 MBytes 1.35 Gbits/sec
[ 5] 6.00-7.00 sec 167 MBytes 1.40 Gbits/sec
[ 5] 7.00-8.00 sec 159 MBytes 1.34 Gbits/sec
[ 5] 8.00-9.00 sec 163 MBytes 1.37 Gbits/sec
[ 5] 9.00-10.00 sec 164 MBytes 1.37 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 1.56 GBytes 1.34 Gbits/sec sender
[ 5] 0.00-10.03 sec 1.56 GBytes 1.33 Gbits/sec receiver
server 2 <> Server 1 10Threads
[SUM] 0.00-10.00 sec 8.89 GBytes 7.64 Gbits/sec sender
[SUM] 0.00-10.02 sec 8.88 GBytes 7.61 Gbits/sec receiver
Server 2 to Workstation 10 Threads
[SUM] 0.00-10.00 sec 1.21 GBytes 1.04 Gbits/sec sender
[SUM] 0.00-10.02 sec 1.21 GBytes 1.04 Gbits/sec receiver
Server 1 to Workstation 10 Threads
ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 1.41 GBytes 1.21 Gbits/sec sender
[ 5] 0.00-10.02 sec 1.41 GBytes 1.21 Gbits/sec receiver