Linux Command - Network
Linux 网络相关命令
可以使用 yum install iperf3 安装这个工具，或者从网站 https://iperf.fr/iperf-download.php 下载
测试 TCP 吞吐量
假设我们要测试 10.1.207.180 和 10.1.207.181 两个服务器之间的带宽
先在其中一台服务器 10.1.207.181 服上启动 iperf3 服务
[root@oss-irms-181 ~]# iperf3 -s -p 5001
-----------------------------------------------------------
Server listening on 5001
-----------------------------------------------------------
再在另一台机器 10.1.207.180 启动客户端连接服务端 10.1.207.181 测试
[root@oss-irms-180 ~]# iperf3 -c 10.1.207.181 -P 4 -t 30 -i 2 -p 5001
Connecting to host 10.1.207.181, port 5001
[ 4] local 10.1.207.180 port 49244 connected to 10.1.207.181 port 5001
[ 6] local 10.1.207.180 port 49246 connected to 10.1.207.181 port 5001
[ 8] local 10.1.207.180 port 49248 connected to 10.1.207.181 port 5001
[ 10] local 10.1.207.180 port 49250 connected to 10.1.207.181 port 5001
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-2.00 sec 883 MBytes 3.70 Gbits/sec 0 3.01 MBytes
[ 6] 0.00-2.00 sec 867 MBytes 3.63 Gbits/sec 0 3.04 MBytes
[ 8] 0.00-2.00 sec 908 MBytes 3.80 Gbits/sec 0 3.03 MBytes
[ 10] 0.00-2.00 sec 878 MBytes 3.67 Gbits/sec 0 3.01 MBytes
[SUM] 0.00-2.00 sec 3.45 GBytes 14.8 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 2.00-4.00 sec 952 MBytes 4.00 Gbits/sec 0 3.01 MBytes
[ 6] 2.00-4.00 sec 950 MBytes 3.99 Gbits/sec 0 3.04 MBytes
[ 8] 2.00-4.00 sec 949 MBytes 3.99 Gbits/sec 0 3.03 MBytes
[ 10] 2.00-4.00 sec 948 MBytes 3.98 Gbits/sec 0 3.01 MBytes
[SUM] 2.00-4.00 sec 3.71 GBytes 16.0 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 4.00-6.00 sec 1.04 GBytes 4.45 Gbits/sec 0 3.01 MBytes
[ 6] 4.00-6.00 sec 1.03 GBytes 4.44 Gbits/sec 0 3.04 MBytes
[ 8] 4.00-6.00 sec 1.03 GBytes 4.44 Gbits/sec 0 3.03 MBytes
[ 10] 4.00-6.00 sec 1.03 GBytes 4.41 Gbits/sec 0 3.01 MBytes
[SUM] 4.00-6.00 sec 4.13 GBytes 17.7 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 6.00-8.00 sec 998 MBytes 4.18 Gbits/sec 0 3.01 MBytes
[ 6] 6.00-8.00 sec 992 MBytes 4.16 Gbits/sec 0 3.04 MBytes
[ 8] 6.00-8.00 sec 989 MBytes 4.15 Gbits/sec 0 3.03 MBytes
[ 10] 6.00-8.00 sec 990 MBytes 4.15 Gbits/sec 0 3.01 MBytes
[SUM] 6.00-8.00 sec 3.88 GBytes 16.6 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 8.00-10.00 sec 1002 MBytes 4.21 Gbits/sec 0 3.01 MBytes
[ 6] 8.00-10.00 sec 1001 MBytes 4.20 Gbits/sec 0 3.04 MBytes
[ 8] 8.00-10.00 sec 1001 MBytes 4.20 Gbits/sec 0 3.03 MBytes
[ 10] 8.00-10.00 sec 996 MBytes 4.18 Gbits/sec 0 3.01 MBytes
[SUM] 8.00-10.00 sec 3.91 GBytes 16.8 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 10.00-12.00 sec 979 MBytes 4.10 Gbits/sec 0 3.01 MBytes
[ 6] 10.00-12.00 sec 979 MBytes 4.10 Gbits/sec 0 3.04 MBytes
[ 8] 10.00-12.00 sec 974 MBytes 4.08 Gbits/sec 0 3.03 MBytes
[ 10] 10.00-12.00 sec 971 MBytes 4.07 Gbits/sec 0 3.01 MBytes
[SUM] 10.00-12.00 sec 3.81 GBytes 16.4 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 12.00-14.00 sec 1008 MBytes 4.22 Gbits/sec 0 3.01 MBytes
[ 6] 12.00-14.00 sec 1006 MBytes 4.22 Gbits/sec 0 3.04 MBytes
[ 8] 12.00-14.00 sec 1002 MBytes 4.20 Gbits/sec 0 3.03 MBytes
[ 10] 12.00-14.00 sec 1004 MBytes 4.21 Gbits/sec 0 3.01 MBytes
[SUM] 12.00-14.00 sec 3.93 GBytes 16.9 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 14.00-16.00 sec 1.09 GBytes 4.70 Gbits/sec 0 3.01 MBytes
[ 6] 14.00-16.00 sec 1.09 GBytes 4.69 Gbits/sec 0 3.04 MBytes
[ 8] 14.00-16.00 sec 1.09 GBytes 4.70 Gbits/sec 0 3.03 MBytes
[ 10] 14.00-16.00 sec 1.09 GBytes 4.69 Gbits/sec 0 3.01 MBytes
[SUM] 14.00-16.00 sec 4.37 GBytes 18.8 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 16.00-18.00 sec 979 MBytes 4.11 Gbits/sec 0 3.01 MBytes
[ 6] 16.00-18.00 sec 976 MBytes 4.09 Gbits/sec 0 3.04 MBytes
[ 8] 16.00-18.00 sec 972 MBytes 4.08 Gbits/sec 0 3.03 MBytes
[ 10] 16.00-18.00 sec 970 MBytes 4.07 Gbits/sec 0 3.01 MBytes
[SUM] 16.00-18.00 sec 3.81 GBytes 16.3 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 18.00-20.00 sec 1.08 GBytes 4.64 Gbits/sec 0 3.01 MBytes
[ 6] 18.00-20.00 sec 1.08 GBytes 4.63 Gbits/sec 0 3.04 MBytes
[ 8] 18.00-20.00 sec 1.07 GBytes 4.61 Gbits/sec 0 3.03 MBytes
[ 10] 18.00-20.00 sec 1.08 GBytes 4.62 Gbits/sec 0 3.01 MBytes
[SUM] 18.00-20.00 sec 4.31 GBytes 18.5 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 20.00-22.00 sec 989 MBytes 4.15 Gbits/sec 0 3.01 MBytes
[ 6] 20.00-22.00 sec 986 MBytes 4.13 Gbits/sec 0 3.04 MBytes
[ 8] 20.00-22.00 sec 986 MBytes 4.13 Gbits/sec 0 3.03 MBytes
[ 10] 20.00-22.00 sec 982 MBytes 4.12 Gbits/sec 0 3.01 MBytes
[SUM] 20.00-22.00 sec 3.85 GBytes 16.5 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 22.00-24.00 sec 984 MBytes 4.13 Gbits/sec 0 3.01 MBytes
[ 6] 22.00-24.00 sec 982 MBytes 4.12 Gbits/sec 0 3.04 MBytes
[ 8] 22.00-24.00 sec 979 MBytes 4.11 Gbits/sec 0 3.03 MBytes
[ 10] 22.00-24.00 sec 978 MBytes 4.10 Gbits/sec 0 3.01 MBytes
[SUM] 22.00-24.00 sec 3.83 GBytes 16.5 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 24.00-26.00 sec 1.09 GBytes 4.66 Gbits/sec 0 3.01 MBytes
[ 6] 24.00-26.00 sec 1.08 GBytes 4.65 Gbits/sec 0 3.04 MBytes
[ 8] 24.00-26.00 sec 1.08 GBytes 4.64 Gbits/sec 0 3.03 MBytes
[ 10] 24.00-26.00 sec 1.08 GBytes 4.64 Gbits/sec 0 3.01 MBytes
[SUM] 24.00-26.00 sec 4.33 GBytes 18.6 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 26.00-28.00 sec 1.12 GBytes 4.80 Gbits/sec 0 3.01 MBytes
[ 6] 26.00-28.00 sec 1.12 GBytes 4.80 Gbits/sec 0 3.04 MBytes
[ 8] 26.00-28.00 sec 1.12 GBytes 4.79 Gbits/sec 0 3.03 MBytes
[ 10] 26.00-28.00 sec 1.11 GBytes 4.79 Gbits/sec 0 3.01 MBytes
[SUM] 26.00-28.00 sec 4.47 GBytes 19.2 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 28.00-30.00 sec 1.07 GBytes 4.60 Gbits/sec 0 3.01 MBytes
[ 6] 28.00-30.00 sec 1.07 GBytes 4.59 Gbits/sec 0 3.04 MBytes
[ 8] 28.00-30.00 sec 1.07 GBytes 4.58 Gbits/sec 0 3.03 MBytes
[ 10] 28.00-30.00 sec 1.07 GBytes 4.58 Gbits/sec 0 3.01 MBytes
[SUM] 28.00-30.00 sec 4.27 GBytes 18.4 Gbits/sec 0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-30.00 sec 15.1 GBytes 4.31 Gbits/sec 0 sender
[ 4] 0.00-30.00 sec 15.1 GBytes 4.31 Gbits/sec receiver
[ 6] 0.00-30.00 sec 15.0 GBytes 4.30 Gbits/sec 0 sender
[ 6] 0.00-30.00 sec 15.0 GBytes 4.30 Gbits/sec receiver
[ 8] 0.00-30.00 sec 15.0 GBytes 4.30 Gbits/sec 0 sender
[ 8] 0.00-30.00 sec 15.0 GBytes 4.30 Gbits/sec receiver
[ 10] 0.00-30.00 sec 15.0 GBytes 4.29 Gbits/sec 0 sender
[ 10] 0.00-30.00 sec 15.0 GBytes 4.29 Gbits/sec receiver
[SUM] 0.00-30.00 sec 60.1 GBytes 17.2 Gbits/sec 0 sender
[SUM] 0.00-30.00 sec 60.1 GBytes 17.2 Gbits/sec receiver
iperf Done.
从以上结果可以看出 4 个数据流接收到的数据大小和平均带宽 4.XX Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-30.00 sec 15.1 GBytes 4.31 Gbits/sec 0 sender
[ 4] 0.00-30.00 sec 15.1 GBytes 4.31 Gbits/sec receiver
[ 6] 0.00-30.00 sec 15.0 GBytes 4.30 Gbits/sec 0 sender
[ 6] 0.00-30.00 sec 15.0 GBytes 4.30 Gbits/sec receiver
[ 8] 0.00-30.00 sec 15.0 GBytes 4.30 Gbits/sec 0 sender
[ 8] 0.00-30.00 sec 15.0 GBytes 4.30 Gbits/sec receiver
[ 10] 0.00-30.00 sec 15.0 GBytes 4.29 Gbits/sec 0 sender
[ 10] 0.00-30.00 sec 15.0 GBytes 4.29 Gbits/sec receiver
还有接收到的总数据和总带宽 17.2 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[SUM] 0.00-30.00 sec 60.1 GBytes 17.2 Gbits/sec 0 sender
[SUM] 0.00-30.00 sec 60.1 GBytes 17.2 Gbits/sec receiver
测试 UDP 丢包率
[root@oss-irms-180 ~]# iperf3 -c 10.1.207.181 -u -P 4 -t 30 -i 2 -p 5001
Connecting to host 10.1.207.181, port 5001
[ 4] local 10.1.207.180 port 52917 connected to 10.1.207.181 port 5001
[ 6] local 10.1.207.180 port 54137 connected to 10.1.207.181 port 5001
[ 8] local 10.1.207.180 port 36687 connected to 10.1.207.181 port 5001
[ 10] local 10.1.207.180 port 47721 connected to 10.1.207.181 port 5001
[ ID] Interval Transfer Bandwidth Total Datagrams
[ 4] 0.00-2.00 sec 245 KBytes 1.00 Mbits/sec 173
[ 6] 0.00-2.00 sec 245 KBytes 1.00 Mbits/sec 173
[ 8] 0.00-2.00 sec 245 KBytes 1.00 Mbits/sec 173
[ 10] 0.00-2.00 sec 245 KBytes 1.00 Mbits/sec 173
[SUM] 0.00-2.00 sec 979 KBytes 4.01 Mbits/sec 692
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 2.00-4.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 2.00-4.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 2.00-4.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 2.00-4.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 2.00-4.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 4.00-6.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 4.00-6.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 4.00-6.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 4.00-6.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 4.00-6.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 6.00-8.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 6.00-8.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 6.00-8.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 6.00-8.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 6.00-8.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 8.00-10.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 8.00-10.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 8.00-10.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 8.00-10.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 8.00-10.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 10.00-12.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 10.00-12.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 10.00-12.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 10.00-12.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 10.00-12.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 12.00-14.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 12.00-14.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 12.00-14.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 12.00-14.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 12.00-14.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 14.00-16.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 14.00-16.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 14.00-16.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 14.00-16.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 14.00-16.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 16.00-18.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 16.00-18.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 16.00-18.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 16.00-18.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 16.00-18.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 18.00-20.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 18.00-20.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 18.00-20.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 18.00-20.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 18.00-20.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 20.00-22.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 20.00-22.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 20.00-22.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 20.00-22.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 20.00-22.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 22.00-24.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 22.00-24.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 22.00-24.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 22.00-24.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 22.00-24.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 24.00-26.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 24.00-26.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 24.00-26.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 24.00-26.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 24.00-26.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 26.00-28.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 26.00-28.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 26.00-28.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 26.00-28.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 26.00-28.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ 4] 28.00-30.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 6] 28.00-30.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 8] 28.00-30.00 sec 256 KBytes 1.05 Mbits/sec 181
[ 10] 28.00-30.00 sec 256 KBytes 1.05 Mbits/sec 181
[SUM] 28.00-30.00 sec 1024 KBytes 4.19 Mbits/sec 724
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 4] 0.00-30.00 sec 3.74 MBytes 1.05 Mbits/sec 0.040 ms 0/2707 (0%)
[ 4] Sent 2707 datagrams
[ 6] 0.00-30.00 sec 3.74 MBytes 1.05 Mbits/sec 0.036 ms 0/2707 (0%)
[ 6] Sent 2707 datagrams
[ 8] 0.00-30.00 sec 3.74 MBytes 1.05 Mbits/sec 0.036 ms 0/2707 (0%)
[ 8] Sent 2707 datagrams
[ 10] 0.00-30.00 sec 3.74 MBytes 1.05 Mbits/sec 0.039 ms 0/2707 (0%)
[ 10] Sent 2707 datagrams
[SUM] 0.00-30.00 sec 15.0 MBytes 4.18 Mbits/sec 0.038 ms 0/10828 (0%)
iperf Done.
Jitter 列表示抖动时间，或者称为传输延迟，Lost/Total 列表示丢失的数据报和总的数据报数量，后面的0%是平均丢包的比率，Datagrams 列显示的是总共传输数据报的数量。这个输出结果过于简单，要了解更详细的UDP丢包和延时信息，可以在iperf服务端查看，因为在客户端执行传输测试的同时，服务端也会同时显示传输状态.