GbEスイッチに接続した端末のスループット
iperf3で同じスイッチに接続している同じネットワークにいる端末間のスループットを測定します。
使い方やインストール方法は数多くのサイト、ページがあるので割愛します。
サーバ側(Windows10 192.168.2.3)
C:\Program Files (x86)\iperf-3.1.3>iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 192.168.2.6, port 49226
[ 5] local 192.168.2.3 port 5201 connected to 192.168.2.6 port 49228
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.00 sec 113 MBytes 946 Mbits/sec
[ 5] 1.00-2.00 sec 113 MBytes 949 Mbits/sec
[ 5] 2.00-3.00 sec 113 MBytes 949 Mbits/sec
[ 5] 3.00-4.00 sec 113 MBytes 949 Mbits/sec
[ 5] 4.00-5.00 sec 113 MBytes 949 Mbits/sec
[ 5] 5.00-6.00 sec 113 MBytes 949 Mbits/sec
[ 5] 6.00-7.00 sec 113 MBytes 949 Mbits/sec
[ 5] 7.00-8.00 sec 113 MBytes 949 Mbits/sec
[ 5] 8.00-9.00 sec 113 MBytes 949 Mbits/sec
[ 5] 9.00-10.00 sec 113 MBytes 949 Mbits/sec
[ 5] 10.00-10.00 sec 346 KBytes 939 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-10.00 sec 0.00 Bytes 0.00 bits/sec sender
[ 5] 0.00-10.00 sec 1.11 GBytes 949 Mbits/sec receiver
クライアント側(Ubuntu 20.04LTS 192.168.2.6)
mgr206@Alpha8086:~$ iperf3 -c 192.168.2.3
Connecting to host 192.168.2.3, port 5201
[ 5] local 192.168.2.6 port 49228 connected to 192.168.2.3 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 114 MBytes 958 Mbits/sec 0 210 KBytes
[ 5] 1.00-2.00 sec 113 MBytes 949 Mbits/sec 0 210 KBytes
[ 5] 2.00-3.00 sec 113 MBytes 949 Mbits/sec 0 210 KBytes
[ 5] 3.00-4.00 sec 113 MBytes 949 Mbits/sec 0 210 KBytes
[ 5] 4.00-5.00 sec 113 MBytes 949 Mbits/sec 0 210 KBytes
[ 5] 5.00-6.00 sec 113 MBytes 949 Mbits/sec 0 210 KBytes
[ 5] 6.00-7.00 sec 113 MBytes 949 Mbits/sec 0 210 KBytes
[ 5] 7.00-8.00 sec 113 MBytes 949 Mbits/sec 0 210 KBytes
[ 5] 8.00-9.00 sec 113 MBytes 949 Mbits/sec 0 210 KBytes
[ 5] 9.00-10.00 sec 113 MBytes 950 Mbits/sec 0 210 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 1.11 GBytes 950 Mbits/sec 0 sender
[ 5] 0.00-10.00 sec 1.11 GBytes 949 Mbits/sec receiver
iperf Done.
結果
約950Mbpsでした。
iperf3の測定か大きいファイルの転送をしない限り1Gbpsの帯域を使うこと無いのでは、と思いました。