IPerf简单使用

迷南。 2021-09-19 11:46 489阅读 0赞

**一 点睛**

1 IPerf是一个服务器/客户端运行的程序

2 在服务器端运行iPerf，也需要在客户端运行IPerf。

3 服务器端，在命令行下使用iperf加参数-s。

4 客户端，在命令行下使用iperf加参数-c。

5 经过一段时间测试（默认10秒），在Server端和Client端就会打印出网络连接的各种性能参数。

**二 实战**

1 准备服务器和客户端

服务器：192.168.0.110

客户端：192.168.0.120

2 确保服务器和客户端都关闭了防火墙

[root@localhost iperf-1.7.0]# firewall-cmd --state
    not running

3 启动服务端

[root@localhost iperf-1.7.0]# iperf -s
    ------------------------------------------------------------
    Server listening on TCP port 5001
    TCP window size: 85.3 KByte (default)
    ------------------------------------------------------------

4 运行客户端

[root@localhost iperf-1.7.0]# iperf -c 192.168.0.110
    ------------------------------------------------------------
    Client connecting to 192.168.0.110, TCP port 5001
    TCP window size: 85.0 KByte (default)
    ------------------------------------------------------------

5 此时服务端打印如下

6 使用帮助

[root@localhost iperf-1.7.0]# iperf -h
    Usage: iperf [-s|-c host] [options]
           iperf [-h|--help] [-v|--version]
    
    Client/Server:
      -f, --format    [kmKM]   format to report: Kbits, Mbits, KBytes, MBytes
      -i, --interval  #        seconds between periodic bandwidth reports
      -l, --len       #[KM]    length of buffer to read or write (default 8 KB)
      -m, --print_mss          print TCP maximum segment size (MTU - TCP/IP header)
      -p, --port      #        server port to listen on/connect to
      -u, --udp                use UDP rather than TCP
      -w, --window    #[KM]    TCP window size (socket buffer size)
      -B, --bind      <host>   bind to <host>, an interface or multicast address
      -C, --compatibility      for use with older versions does not sent extra msgs
      -M, --mss       #        set TCP maximum segment size (MTU - 40 bytes)
      -N, --nodelay            set TCP no delay, disabling Nagle's Algorithm
      -V, --IPv6Version        Set the domain to IPv6
    
    Server specific:
      -s, --server             run in server mode
      -D, --daemon             run the server as a daemon
    
    Client specific:
      -b, --bandwidth #[KM]    for UDP, bandwidth to send at in bits/sec
                               (default 1 Mbit/sec, implies -u)
      -c, --client    <host>   run in client mode, connecting to <host>
      -d, --dualtest           Do a bidirectional test simultaneously
      -n, --num       #[KM]    number of bytes to transmit (instead of -t)
      -r, --tradeoff           Do a bidirectional test individually
      -t, --time      #        time in seconds to transmit for (default 10 secs)
      -F, --fileinput <name>   input the data to be transmitted from a file
      -I, --stdin              input the data to be transmitted from stdin
      -L, --listenport #       port to recieve bidirectional tests back on
      -P, --parallel  #        number of parallel client threads to run
      -T, --ttl       #        time-to-live, for multicast (default 1)
    
    Miscellaneous:
      -h, --help               print this message and quit
      -v, --version            print version information and quit
    
    [KM] Indicates options that support a K or M suffix for kilo- or mega-
    
    The TCP window size option can be set by the environment variable
    TCP_WINDOW_SIZE. Most other options can be set by an environment variable
    IPERF_<long option name>, such as IPERF_BANDWIDTH.
    
    Report bugs to <dast@nlanr.net>