iperf\iperf.exe -c server -r -i 2 -w 524288
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 512 KByte
------------------------------------------------------------
------------------------------------------------------------
Client connecting to server, TCP port 5001
TCP window size: 512 KByte
------------------------------------------------------------
[ ID] Interval
Transfer Bandwidth
[ 4] 0.0- 2.0 sec 24.0 MBytes
101 Mbits/sec
[ 4] 2.0- 4.0 sec 24.1 MBytes 101
Mbits/sec
[ 4] 4.0- 6.0 sec 30.2 MBytes
127 Mbits/sec
[ 4] 6.0- 8.0 sec 30.8 MBytes
129 Mbits/sec
[ 4] 8.0-10.0 sec 28.1 MBytes
118 Mbits/sec
[ 4] 0.0-10.0 sec 137
MBytes 115 Mbits/sec
[ 4] 0.0- 2.0 sec 6.67 MBytes 28.0
Mbits/sec
[ 4] 2.0- 4.0 sec 6.87 MBytes 28.8
Mbits/sec
[ 4] 4.0- 6.0 sec 4.33 MBytes 18.2
Mbits/sec
[ 4] 6.0- 8.0 sec 6.17 MBytes 25.9
Mbits/sec
[ 4] 8.0-10.0 sec 6.05 MBytes 25.4
Mbits/sec
[ 4] 0.0-10.1 sec 30.4 MBytes 25.2
Mbits/sec
If I change the HT Mode from VHT Mode (AC) to HT Mode (N) in the driver properties, then my results get much better.
[ ID] Interval Transfer Bandwidth
[ 4] 0.0- 2.0 sec 33.4 MBytes
140 Mbits/sec
[ 4] 2.0- 4.0 sec 30.6 MBytes
128 Mbits/sec
[ 4] 4.0- 6.0 sec 33.0 MBytes
138 Mbits/sec
[ 4] 6.0- 8.0 sec 33.0 MBytes
138 Mbits/sec
[ 4] 8.0-10.0 sec 34.4 MBytes
144 Mbits/sec
[ 4] 0.0-10.0 sec 164
MBytes 138 Mbits/sec
[ 4] 0.0- 2.0 sec 25.8 MBytes
108 Mbits/sec
[ 4] 2.0- 4.0 sec 30.9 MBytes
130 Mbits/sec
[ 4] 4.0- 6.0 sec 29.6 MBytes
124 Mbits/sec
[ 4] 6.0- 8.0 sec 30.7 MBytes
129 Mbits/sec
[ 4] 8.0-10.0 sec 31.3 MBytes
131 Mbits/sec
Mike,
ReplyDeleteThanks for the thoughts. I've used both the Intel Driver Update Utility and Dell's System Detect tool to make sure I've got the latest driver. I'm current at 17.1.0.19. I've not tried any older versions. When things slow down, I'll work with one of the wireless guys here to see if we can figure out what is happening. He can look at the controller and see the details of my connection from his side while I look at the client.
Cheers!
They are Aruba 225 devices. We are scheduling an update soon - waiting for the latest GA version.
ReplyDelete