{"id":97821,"date":"2026-08-30T10:16:54","date_gmt":"2026-08-30T02:16:54","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/97821.html"},"modified":"2026-08-30T10:16:54","modified_gmt":"2026-08-30T02:16:54","slug":"%e4%bc%81%e4%b8%9a%e6%8e%92%e9%9a%9c%e5%bf%85%e5%a4%87%ef%bc%9a%e4%ba%a4%e6%8d%a2%e6%9c%ba%e7%ab%af%e5%8f%a3%e9%95%9c%e5%83%8f%ef%bc%88span%ef%bc%89%e9%85%8d%e7%bd%ae%e8%b6%85%e8%af%a6%e7%bb%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/97821.html","title":{"rendered":"\u4f01\u4e1a\u6392\u969c\u5fc5\u5907\uff1a\u4ea4\u6362\u673a\u7aef\u53e3\u955c\u50cf\uff08SPAN\uff09\u914d\u7f6e\u8d85\u8be6\u7ec6\u6559\u7a0b"},"content":{"rendered":"<\/p>\n<h4>\u4f01\u4e1a\u6392\u969c\u5fc5\u5907&#xff1a;\u4ea4\u6362\u673a\u7aef\u53e3\u955c\u50cf&#xff08;SPAN&#xff09;\u914d\u7f6e\u8d85\u8be6\u7ec6\u6559\u7a0b<\/h4>\n<ul>\n<li>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u4e00\u3001\u7aef\u53e3\u955c\u50cf\u6838\u5fc3\u6982\u5ff5<\/li>\n<li>\n<ul>\n<li>1. \u4ec0\u4e48\u662f\u7aef\u53e3\u955c\u50cf<\/li>\n<li>2. \u5173\u952e\u672f\u8bed<\/li>\n<li>3. \u5178\u578b\u7528\u9014<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u7aef\u53e3\u955c\u50cf\u5de5\u4f5c\u6d41\u7a0b\u56fe<\/li>\n<li>\u4e09\u3001\u914d\u7f6e\u524d\u63d0<\/li>\n<li>\u56db\u3001Cisco \u4ea4\u6362\u673a\u7aef\u53e3\u955c\u50cf\u914d\u7f6e\u6b65\u9aa4&#xff08;\u6700\u6807\u51c6&#xff09;<\/li>\n<li>\n<ul>\n<li>\u5b9e\u9a8c\u73af\u5883<\/li>\n<li>\u6b65\u9aa4 1&#xff1a;\u8fdb\u5165\u914d\u7f6e\u6a21\u5f0f<\/li>\n<li>\u6b65\u9aa4 2&#xff1a;\u914d\u7f6e\u6e90\u7aef\u53e3&#xff08;\u88ab\u76d1\u63a7\u7aef\u53e3&#xff09;<\/li>\n<li>\u6b65\u9aa4 3&#xff1a;\u914d\u7f6e\u76ee\u7684\u7aef\u53e3&#xff08;\u6293\u5305\u7535\u8111\u7aef\u53e3&#xff09;<\/li>\n<li>\u6b65\u9aa4 4&#xff1a;\u5f00\u542f\u955c\u50cf\u4f1a\u8bdd&#xff08;\u9ed8\u8ba4\u5f00\u542f&#xff09;<\/li>\n<li>\u6b65\u9aa4 5&#xff1a;\u4fdd\u5b58\u914d\u7f6e<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u5b8c\u6574\u53ef\u590d\u5236\u547d\u4ee4&#xff08;\u4e00\u952e\u914d\u7f6e&#xff09;<\/li>\n<li>\u516d\u3001\u9ad8\u7ea7\u7528\u6cd5<\/li>\n<li>\n<ul>\n<li>1. \u76d1\u63a7\u591a\u4e2a\u7aef\u53e3<\/li>\n<li>2. \u53ea\u76d1\u63a7\u5165\u6d41\u91cf<\/li>\n<li>3. \u5220\u9664\u7aef\u53e3\u955c\u50cf<\/li>\n<\/ul>\n<\/li>\n<li>\u4e03\u3001\u9a8c\u8bc1\u547d\u4ee4&#xff08;\u5fc5\u7528&#xff09;<\/li>\n<li>\n<ul>\n<li>\u67e5\u770b\u955c\u50cf\u72b6\u6001<\/li>\n<\/ul>\n<\/li>\n<li>\u516b\u3001\u5e38\u89c1\u95ee\u9898\u6392\u9519<\/li>\n<li>\u4e5d\u3001\u603b\u7ed3&#xff08;\u8d85\u7b80\u6d01&#xff09;<\/li>\n<li>\u5173\u952e\u70b9\u56de\u987e<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table width=\"100%\">\n<tbody>\n<tr>\n<td width=\"50%\">\n<p>     <font face=\"STCAIYUN\" color=\"red\" size=\"4\">&#x1f33a;The Begin&#x1f33a;\u70b9\u70b9\u5173\u6ce8&#xff0c;\u6536\u85cf\u4e0d\u8ff7\u8def&#x1f33a;<\/font>\n     <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u524d\u8a00<\/h3>\n<p>\u5728\u7f51\u7edc\u6545\u969c\u6392\u67e5\u3001\u6d41\u91cf\u5206\u6790\u3001\u5b89\u5168\u5ba1\u8ba1\u573a\u666f\u4e2d&#xff0c;\u7aef\u53e3\u955c\u50cf&#xff08;Port Mirroring&#xff09; \u662f\u7f51\u5de5\u6700\u5e38\u7528\u7684\u6838\u5fc3\u6280\u80fd\u3002Cisco \u4ea4\u6362\u673a\u4e2d\u79f0\u4e3a SPAN&#xff08;Switched Port Analyzer&#xff09;&#xff0c;\u5b83\u80fd\u5c06\u4ea4\u6362\u673a\u7aef\u53e3\u7684\u6d41\u91cf\u5b8c\u6574\u590d\u5236\u5230\u76d1\u63a7\u7aef\u53e3&#xff0c;\u914d\u5408 Wireshark \u6293\u5305\u5206\u6790&#xff0c;\u4e14\u4e0d\u5f71\u54cd\u4e1a\u52a1\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p>\u672c\u6587\u4ee5 Cisco \u4ea4\u6362\u673a \u4e3a\u4f8b&#xff0c;\u7528\u7eaf\u5e72\u8d27\u3001\u6b65\u9aa4\u6e05\u6670\u3001\u53ef\u76f4\u63a5\u590d\u5236\u547d\u4ee4\u7684\u65b9\u5f0f&#xff0c;\u6559\u4f60\u5feb\u901f\u914d\u7f6e\u7aef\u53e3\u955c\u50cf\u3002<\/p>\n<hr \/>\n<h3>\u4e00\u3001\u7aef\u53e3\u955c\u50cf\u6838\u5fc3\u6982\u5ff5<\/h3>\n<h4>1. \u4ec0\u4e48\u662f\u7aef\u53e3\u955c\u50cf<\/h4>\n<p>\u628a\u4ea4\u6362\u673a\u6e90\u7aef\u53e3&#xff08;\u88ab\u76d1\u63a7\u53e3&#xff09; \u7684\u6536\u53d1\u6d41\u91cf&#xff0c;\u590d\u5236\u4e00\u4efd\u53d1\u9001\u5230\u76ee\u7684\u7aef\u53e3&#xff08;\u76d1\u63a7\u53e3&#xff09;&#xff0c;\u7528\u4e8e\u6293\u5305\u3001\u5206\u6790\u3001\u5ba1\u8ba1\u3002<\/p>\n<h4>2. \u5173\u952e\u672f\u8bed<\/h4>\n<ul>\n<li>\u6e90\u7aef\u53e3&#xff08;Source&#xff09;&#xff1a;\u88ab\u76d1\u63a7\u7684\u7aef\u53e3&#xff08;\u5982\u8fde\u63a5 PC\/\u670d\u52a1\u5668\u7684\u7aef\u53e3&#xff09;<\/li>\n<li>\u76ee\u7684\u7aef\u53e3&#xff08;Destination&#xff09;&#xff1a;\u63a5\u6293\u5305\u7535\u8111\u7684\u7aef\u53e3<\/li>\n<li>\u76d1\u63a7\u65b9\u5411&#xff1a;\n<ul>\n<li>rx&#xff1a;\u4ec5\u5165\u7ad9\u6d41\u91cf<\/li>\n<li>tx&#xff1a;\u4ec5\u51fa\u7ad9\u6d41\u91cf<\/li>\n<li>both&#xff1a;\u53cc\u5411\u6d41\u91cf&#xff08;\u6700\u5e38\u7528&#xff09;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>3. \u5178\u578b\u7528\u9014<\/h4>\n<ul>\n<li>Wireshark \u6d41\u91cf\u6293\u5305<\/li>\n<li>\u7f51\u7edc\u5361\u987f\u3001\u4e22\u5305\u3001\u73af\u8def\u6392\u67e5<\/li>\n<li>\u4e0a\u7f51\u884c\u4e3a\u76d1\u63a7<\/li>\n<li>\u5165\u4fb5\u68c0\u6d4b\u3001\u5b89\u5168\u5ba1\u8ba1<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e8c\u3001\u7aef\u53e3\u955c\u50cf\u5de5\u4f5c\u6d41\u7a0b\u56fe<\/h3>\n<p>  #mermaid-svg-pbeW8KapwDp7CFw9{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes 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path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-pbeW8KapwDp7CFw9 .rough-node .label text,#mermaid-svg-pbeW8KapwDp7CFw9 .node .label text,#mermaid-svg-pbeW8KapwDp7CFw9 .image-shape .label,#mermaid-svg-pbeW8KapwDp7CFw9 .icon-shape .label{text-anchor:middle;}#mermaid-svg-pbeW8KapwDp7CFw9 .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-pbeW8KapwDp7CFw9 .rough-node .label,#mermaid-svg-pbeW8KapwDp7CFw9 .node .label,#mermaid-svg-pbeW8KapwDp7CFw9 .image-shape .label,#mermaid-svg-pbeW8KapwDp7CFw9 .icon-shape .label{text-align:center;}#mermaid-svg-pbeW8KapwDp7CFw9 .node.clickable{cursor:pointer;}#mermaid-svg-pbeW8KapwDp7CFw9 .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-pbeW8KapwDp7CFw9 .arrowheadPath{fill:#333333;}#mermaid-svg-pbeW8KapwDp7CFw9 .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-pbeW8KapwDp7CFw9 .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-pbeW8KapwDp7CFw9 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.flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-pbeW8KapwDp7CFw9 rect.text{fill:none;stroke-width:0;}#mermaid-svg-pbeW8KapwDp7CFw9 .icon-shape,#mermaid-svg-pbeW8KapwDp7CFw9 .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-pbeW8KapwDp7CFw9 .icon-shape p,#mermaid-svg-pbeW8KapwDp7CFw9 .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-pbeW8KapwDp7CFw9 .icon-shape .label rect,#mermaid-svg-pbeW8KapwDp7CFw9 .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-pbeW8KapwDp7CFw9 .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-pbeW8KapwDp7CFw9 .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-pbeW8KapwDp7CFw9 :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u88ab\u76d1\u63a7\u7aef\u53e3 G0\/1<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u4ea4\u6362\u673a<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u590d\u5236\u6d41\u91cf<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u76d1\u63a7\u7aef\u53e3 G0\/24<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>Wireshark \u6293\u5305\u7535\u8111<\/p>\n<p><\/span><\/p>\n<hr \/>\n<h3>\u4e09\u3001\u914d\u7f6e\u524d\u63d0<\/h3>\n<li>\u76ee\u7684\u7aef\u53e3\u4e0d\u80fd\u662f trunk\u3001\u5b89\u5168\u7aef\u53e3\u3001\u4ee5\u592a\u901a\u9053<\/li>\n<li>\u4e00\u4e2a\u955c\u50cf\u4f1a\u8bdd\u53ea\u80fd\u6709 1 \u4e2a\u76ee\u7684\u7aef\u53e3<\/li>\n<li>\u53ef\u4ee5\u6709\u591a\u4e2a\u6e90\u7aef\u53e3<\/li>\n<li>\u76ee\u7684\u7aef\u53e3\u914d\u7f6e\u540e\u4ec5\u7528\u4e8e\u6293\u5305&#xff0c;\u65e0\u6cd5\u6b63\u5e38\u4e0a\u7f51<\/li>\n<hr \/>\n<h3>\u56db\u3001Cisco \u4ea4\u6362\u673a\u7aef\u53e3\u955c\u50cf\u914d\u7f6e\u6b65\u9aa4&#xff08;\u6700\u6807\u51c6&#xff09;<\/h3>\n<h4>\u5b9e\u9a8c\u73af\u5883<\/h4>\n<ul>\n<li>\u88ab\u76d1\u63a7\u6e90\u7aef\u53e3&#xff1a;G0\/1<\/li>\n<li>\u6293\u5305\u76ee\u7684\u7aef\u53e3&#xff1a;G0\/24<\/li>\n<li>\u76d1\u63a7\u65b9\u5411&#xff1a;\u53cc\u5411\u6d41\u91cf&#xff08;both&#xff09;<\/li>\n<\/ul>\n<hr \/>\n<h4>\u6b65\u9aa4 1&#xff1a;\u8fdb\u5165\u914d\u7f6e\u6a21\u5f0f<\/h4>\n<p><span class=\"token builtin class-name\">enable<\/span><br \/>\nconfigure terminal<\/p>\n<h4>\u6b65\u9aa4 2&#xff1a;\u914d\u7f6e\u6e90\u7aef\u53e3&#xff08;\u88ab\u76d1\u63a7\u7aef\u53e3&#xff09;<\/h4>\n<p>monitor session <span class=\"token number\">1<\/span> <span class=\"token builtin class-name\">source<\/span> interface GigabitEthernet0\/1 both<\/p>\n<h4>\u6b65\u9aa4 3&#xff1a;\u914d\u7f6e\u76ee\u7684\u7aef\u53e3&#xff08;\u6293\u5305\u7535\u8111\u7aef\u53e3&#xff09;<\/h4>\n<p>monitor session <span class=\"token number\">1<\/span> destination interface GigabitEthernet0\/24<\/p>\n<h4>\u6b65\u9aa4 4&#xff1a;\u5f00\u542f\u955c\u50cf\u4f1a\u8bdd&#xff08;\u9ed8\u8ba4\u5f00\u542f&#xff09;<\/h4>\n<p>no monitor session <span class=\"token number\">1<\/span> <span class=\"token function\">shutdown<\/span><\/p>\n<h4>\u6b65\u9aa4 5&#xff1a;\u4fdd\u5b58\u914d\u7f6e<\/h4>\n<p><span class=\"token function\">write<\/span><\/p>\n<hr \/>\n<h3>\u4e94\u3001\u5b8c\u6574\u53ef\u590d\u5236\u547d\u4ee4&#xff08;\u4e00\u952e\u914d\u7f6e&#xff09;<\/h3>\n<p>conf t<br \/>\nmonitor session <span class=\"token number\">1<\/span> <span class=\"token builtin class-name\">source<\/span> interface g0\/1 both<br \/>\nmonitor session <span class=\"token number\">1<\/span> destination interface g0\/24<br \/>\n<span class=\"token builtin class-name\">exit<\/span><br \/>\n<span class=\"token function\">write<\/span><\/p>\n<hr \/>\n<h3>\u516d\u3001\u9ad8\u7ea7\u7528\u6cd5<\/h3>\n<h4>1. \u76d1\u63a7\u591a\u4e2a\u7aef\u53e3<\/h4>\n<p>monitor session <span class=\"token number\">1<\/span> <span class=\"token builtin class-name\">source<\/span> interface g0\/1 , g0\/2 , g0\/3 both<\/p>\n<h4>2. \u53ea\u76d1\u63a7\u5165\u6d41\u91cf<\/h4>\n<p>monitor session <span class=\"token number\">1<\/span> <span class=\"token builtin class-name\">source<\/span> interface g0\/1 rx<\/p>\n<h4>3. \u5220\u9664\u7aef\u53e3\u955c\u50cf<\/h4>\n<p>no monitor session <span class=\"token number\">1<\/span><\/p>\n<hr \/>\n<h3>\u4e03\u3001\u9a8c\u8bc1\u547d\u4ee4&#xff08;\u5fc5\u7528&#xff09;<\/h3>\n<h4>\u67e5\u770b\u955c\u50cf\u72b6\u6001<\/h4>\n<p>show monitor session all<\/p>\n<p>\u770b\u5230 Session 1 is UP \u8868\u793a\u914d\u7f6e\u6210\u529f\u3002<\/p>\n<hr \/>\n<h3>\u516b\u3001\u5e38\u89c1\u95ee\u9898\u6392\u9519<\/h3>\n<li>\n<p>\u6293\u4e0d\u5230\u6d41\u91cf<\/p>\n<ul>\n<li>\u6e90\u7aef\u53e3\u548c\u76ee\u7684\u7aef\u53e3\u641e\u53cd<\/li>\n<li>\u7535\u8111\u63d2\u9519\u7aef\u53e3<\/li>\n<li>\u955c\u50cf\u4f1a\u8bdd\u672a\u5f00\u542f<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u53ea\u80fd\u6293\u5230\u5355\u5411\u6d41\u91cf<\/p>\n<ul>\n<li>\u65b9\u5411\u672a\u8bbe\u4e3a both<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u76ee\u7684\u7aef\u53e3\u4e0d\u80fd\u4e0a\u7f51<\/p>\n<ul>\n<li>\u6b63\u5e38\u73b0\u8c61&#xff0c;\u76ee\u7684\u7aef\u53e3\u4ec5\u7528\u4e8e\u6293\u5305<\/li>\n<\/ul>\n<\/li>\n<hr \/>\n<h3>\u4e5d\u3001\u603b\u7ed3&#xff08;\u8d85\u7b80\u6d01&#xff09;<\/h3>\n<li>\u7aef\u53e3\u955c\u50cf &#061; \u6d41\u91cf\u590d\u5236\u6293\u5305<\/li>\n<li>\u4e24\u6b65\u914d\u7f6e&#xff1a;\u6e90\u7aef\u53e3 &#043; \u76ee\u7684\u7aef\u53e3<\/li>\n<li>\u547d\u4ee4&#xff1a;monitor session 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<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>\u4f01\u4e1a\u6392\u969c\u5fc5\u5907&#xff1a;\u4ea4\u6362\u673a\u7aef\u53e3\u955c\u50cf&#xff08;SPAN&#xff09;\u914d\u7f6e\u8d85\u8be6\u7ec6\u6559\u7a0b\u524d\u8a00\u4e00\u3001\u7aef\u53e3\u955c\u50cf\u6838\u5fc3\u6982\u5ff51. \u4ec0\u4e48\u662f\u7aef\u53e3\u955c\u50cf2. \u5173\u952e\u672f\u8bed3. \u5178\u578b\u7528\u9014\u4e8c\u3001\u7aef\u53e3\u955c\u50cf\u5de5\u4f5c\u6d41\u7a0b\u56fe\u4e09\u3001\u914d\u7f6e\u524d\u63d0\u56db\u3001Cisco \u4ea4\u6362\u673a\u7aef\u53e3\u955c\u50cf\u914d\u7f6e\u6b65\u9aa4&#xff08;\u6700\u6807\u51c6&#xff09;\u5b9e\u9a8c\u73af\u5883\u6b65\u9aa4 1&#xff1a;\u8fdb\u5165\u914d\u7f6e\u6a21\u5f0f\u6b65\u9aa4 2&#xff1a;\u914d\u7f6e\u6e90\u7aef\u53e3&#xff08;\u88ab\u76d1\u63a7\u7aef\u53e3&#xff09;\u6b65\u9aa4 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