1# ping<a name="ZH-CN_TOPIC_0000001133846496"></a> 2 3- [命令功能](#section119672573385) 4- [命令格式](#section869419010390) 5- [参数说明](#section9877183173918) 6- [使用指南](#section1097046193914) 7- [使用实例](#section14564129113911) 8- [输出说明](#section1621732891215) 9 10## 命令功能<a name="section119672573385"></a> 11 12ping命令用于测试网络连接是否正常。 13 14## 命令格式<a name="section869419010390"></a> 15 16ping_ _\[_-n cnt_\] \[_-w interval_\] \[_-l data\_len_\]_ <IP\>_ 17 18ping \[_-t_\] \[_-w interval_\] _<IP\>_ 19 20ping _-k_ 21 22## 参数说明<a name="section9877183173918"></a> 23 24**表 1** 参数说明 25 26<a name="table2664mcpsimp"></a> 27<table><thead align="left"><tr id="row2670mcpsimp"><th class="cellrowborder" valign="top" width="21%" id="mcps1.2.4.1.1"><p id="p2672mcpsimp"><a name="p2672mcpsimp"></a><a name="p2672mcpsimp"></a>参数</p> 28</th> 29<th class="cellrowborder" valign="top" width="52%" id="mcps1.2.4.1.2"><p id="p2674mcpsimp"><a name="p2674mcpsimp"></a><a name="p2674mcpsimp"></a>参数说明</p> 30</th> 31<th class="cellrowborder" valign="top" width="27%" id="mcps1.2.4.1.3"><p id="p2676mcpsimp"><a name="p2676mcpsimp"></a><a name="p2676mcpsimp"></a>取值范围</p> 32</th> 33</tr> 34</thead> 35<tbody><tr id="row2677mcpsimp"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.2.4.1.1 "><p id="p2679mcpsimp"><a name="p2679mcpsimp"></a><a name="p2679mcpsimp"></a>IP</p> 36</td> 37<td class="cellrowborder" valign="top" width="52%" headers="mcps1.2.4.1.2 "><p id="p2681mcpsimp"><a name="p2681mcpsimp"></a><a name="p2681mcpsimp"></a>要测试是否网络连通的IPv4地址。</p> 38</td> 39<td class="cellrowborder" valign="top" width="27%" headers="mcps1.2.4.1.3 "><p id="entry2682mcpsimpp0"><a name="entry2682mcpsimpp0"></a><a name="entry2682mcpsimpp0"></a>N/A</p> 40</td> 41</tr> 42<tr id="row2690mcpsimp"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.2.4.1.1 "><p id="p2692mcpsimp"><a name="p2692mcpsimp"></a><a name="p2692mcpsimp"></a>-n cnt</p> 43</td> 44<td class="cellrowborder" valign="top" width="52%" headers="mcps1.2.4.1.2 "><p id="p2694mcpsimp"><a name="p2694mcpsimp"></a><a name="p2694mcpsimp"></a>执行的次数，不带本参数则默认为4次。</p> 45</td> 46<td class="cellrowborder" valign="top" width="27%" headers="mcps1.2.4.1.3 "><p id="p2696mcpsimp"><a name="p2696mcpsimp"></a><a name="p2696mcpsimp"></a>1-65535</p> 47</td> 48</tr> 49<tr id="row2697mcpsimp"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.2.4.1.1 "><p id="p2699mcpsimp"><a name="p2699mcpsimp"></a><a name="p2699mcpsimp"></a>-w interval</p> 50</td> 51<td class="cellrowborder" valign="top" width="52%" headers="mcps1.2.4.1.2 "><p id="p2701mcpsimp"><a name="p2701mcpsimp"></a><a name="p2701mcpsimp"></a>发送两次ping包的时间间隔，单位毫秒。</p> 52</td> 53<td class="cellrowborder" valign="top" width="27%" headers="mcps1.2.4.1.3 "><p id="p971414819577"><a name="p971414819577"></a><a name="p971414819577"></a>>0</p> 54</td> 55</tr> 56<tr id="row2703mcpsimp"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.2.4.1.1 "><p id="p2705mcpsimp"><a name="p2705mcpsimp"></a><a name="p2705mcpsimp"></a>-l data_len</p> 57</td> 58<td class="cellrowborder" valign="top" width="52%" headers="mcps1.2.4.1.2 "><p id="p2707mcpsimp"><a name="p2707mcpsimp"></a><a name="p2707mcpsimp"></a>ping包，即ICMP echo request报文的数据长度，不包含ICMP包头。</p> 59</td> 60<td class="cellrowborder" valign="top" width="27%" headers="mcps1.2.4.1.3 "><p id="p2710mcpsimp"><a name="p2710mcpsimp"></a><a name="p2710mcpsimp"></a>0-65500</p> 61</td> 62</tr> 63<tr id="row2711mcpsimp"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.2.4.1.1 "><p id="p2713mcpsimp"><a name="p2713mcpsimp"></a><a name="p2713mcpsimp"></a>-t</p> 64</td> 65<td class="cellrowborder" valign="top" width="52%" headers="mcps1.2.4.1.2 "><p id="p2715mcpsimp"><a name="p2715mcpsimp"></a><a name="p2715mcpsimp"></a>表示永久ping，直到使用ping -k杀死ping线程。</p> 66</td> 67<td class="cellrowborder" valign="top" width="27%" headers="mcps1.2.4.1.3 "><p id="p20501182215720"><a name="p20501182215720"></a><a name="p20501182215720"></a>N/A</p> 68</td> 69</tr> 70<tr id="row2718mcpsimp"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.2.4.1.1 "><p id="p2720mcpsimp"><a name="p2720mcpsimp"></a><a name="p2720mcpsimp"></a>-k</p> 71</td> 72<td class="cellrowborder" valign="top" width="52%" headers="mcps1.2.4.1.2 "><p id="p2722mcpsimp"><a name="p2722mcpsimp"></a><a name="p2722mcpsimp"></a>杀死ping线程，停止ping。</p> 73</td> 74<td class="cellrowborder" valign="top" width="27%" headers="mcps1.2.4.1.3 "><p id="p940472325719"><a name="p940472325719"></a><a name="p940472325719"></a>N/A</p> 75</td> 76</tr> 77</tbody> 78</table> 79 80## 使用指南<a name="section1097046193914"></a> 81 82- ping命令用来测试到目的IP的网络连接是否正常，参数为目的IP地址。 83- 如果目的IP不可达，会显示请求超时。 84- 如果显示发送错误，说明没有到目的IP的路由。 85- 命令需要启动TCP/IP协议栈后才能使用。 86 87## 使用实例<a name="section14564129113911"></a> 88 89举例：输入ping 192.168.1.10 90 91## 输出说明<a name="section1621732891215"></a> 92 93**图 1** ping tftp 服务器地址<a name="fig525762695417"></a> 94 95 96 97 98
