背景

家里光猫跟交换机均是千兆口，网线却是自己拉的超五线。200M电信光纤在跑下载的时候一直时35MB/s左右，于是好奇是带宽提到了300M，还是提到了更高但是超五线跑不起。于是用iperf在内网主机进行测试，确定内网的传输速率。

iperf

环境

服务器ESXI 虚拟机

系统：Centos 7

IP：192.168.2.201

iperf 3.1.3 fedora/iperf3-3.1.3-1.fc24.x86_64.rpm

客户机个人主机

系统：Windows 10

IP：192.168.2.101

iperf 3.1.3 windows/iperf-3.1.3-win64.zip

指令

服务端[root@Sailark-Proxy ~]# iperf3 -B 192.168.2.201 -s

-----------------------------------------------------------

Server listening on 5201

-----------------------------------------------------------

Accepted connection from 192.168.2.101, port 1781

[ 5] local 192.168.2.201 port 5201 connected to 192.168.2.101 port 1782

[ ID] Interval Transfer Bandwidth

[ 5] 0.00-1.00 sec 107 MBytes 894 Mbits/sec

[ 5] 1.00-2.00 sec 111 MBytes 928 Mbits/sec

[ 5] 2.00-3.00 sec 111 MBytes 929 Mbits/sec

[ 5] 3.00-4.00 sec 110 MBytes 925 Mbits/sec

[ 5] 4.00-5.00 sec 110 MBytes 924 Mbits/sec

[ 5] 5.00-6.00 sec 111 MBytes 931 Mbits/sec

[ 5] 6.00-7.00 sec 110 MBytes 926 Mbits/sec

[ 5] 7.00-8.00 sec 110 MBytes 923 Mbits/sec

[ 5] 8.00-9.00 sec 111 MBytes 928 Mbits/sec

[ 5] 9.00-10.00 sec 110 MBytes 924 Mbits/sec

[ 5] 10.00-10.04 sec 4.52 MBytes 932 Mbits/sec

- - - - - - - - - - - - - - - - - - - - - - - - -

[ ID] Interval Transfer Bandwidth

[ 5] 0.00-10.04 sec 0.00 Bytes 0.00 bits/sec sender

[ 5] 0.00-10.04 sec 1.08 GBytes 923 Mbits/sec receiver

-----------------------------------------------------------

Server listening on 5201

-----------------------------------------------------------

客户端PS C:\Users\Nukami\Desktop\iperf-3.1.3-win64> ./iperf3.exe -c 192.168.2.201

Connecting to host 192.168.2.201, port 5201

[ 4] local 192.168.2.101 port 1782 connected to 192.168.2.201 port 5201

[ ID] Interval Transfer Bandwidth

[ 4] 0.00-1.00 sec 111 MBytes 931 Mbits/sec

[ 4] 1.00-2.00 sec 111 MBytes 929 Mbits/sec

[ 4] 2.00-3.00 sec 111 MBytes 929 Mbits/sec

[ 4] 3.00-4.00 sec 110 MBytes 926 Mbits/sec

[ 4] 4.00-5.00 sec 110 MBytes 923 Mbits/sec

[ 4] 5.00-6.00 sec 110 MBytes 924 Mbits/sec

[ 4] 6.00-7.00 sec 111 MBytes 932 Mbits/sec

[ 4] 7.00-8.00 sec 110 MBytes 924 Mbits/sec

[ 4] 8.00-9.00 sec 111 MBytes 928 Mbits/sec

[ 4] 9.00-10.00 sec 110 MBytes 924 Mbits/sec

- - - - - - - - - - - - - - - - - - - - - - - - -

[ ID] Interval Transfer Bandwidth

[ 4] 0.00-10.00 sec 1.08 GBytes 927 Mbits/sec sender

[ 4] 0.00-10.00 sec 1.08 GBytes 927 Mbits/sec receiver

iperf Done.

结论

看来超五类线还是跑的起千兆的，至于突破千兆的瓶颈感觉反而是在水星的千兆交换机