{"id":53,"date":"2019-06-12T14:09:24","date_gmt":"2019-06-12T06:09:24","guid":{"rendered":""},"modified":"2024-03-19T21:58:57","modified_gmt":"2024-03-19T13:58:57","slug":"%e5%88%86%e4%ba%ab%ef%bc%9a%e9%80%9a%e4%bf%97%e6%98%93%e6%87%82%e7%9a%84%e5%85%b3%e4%ba%8evlan%e4%bb%a5%e5%8f%8a%e5%ad%90%e7%bd%91%e5%88%92%e5%88%86%e7%9a%84%e4%b8%80%e4%ba%9b%e7%9f%a5%e8%af%86","status":"publish","type":"post","link":"https:\/\/www.fatesky.com\/?p=53","title":{"rendered":"\u5206\u4eab\uff1a\u901a\u4fd7\u6613\u61c2\u7684\u5173\u4e8eVLAN\u4ee5\u53ca\u5b50\u7f51\u5212\u5206\u7684\u4e00\u4e9b\u77e5\u8bc6"},"content":{"rendered":"

\u4e00\u3001\u5148\u6765\u4e00\u53d1VLAN\u7684\u8be6\u7ec6\u4ecb\u7ecd<\/span><\/p>\n

\n

VLAN\u7ffb\u8bd1\u6210\u4e2d\u6587\u662f\u201c\u865a\u62df\u5c40\u57df\u7f51\u201d\u3002LAN\u53ef\u4ee5\u662f\u7531\u5c11\u6570\u51e0\u53f0\u5bb6\u7528\u8ba1\u7b97\u673a\u6784\u6210\u7684\u7f51\u7edc\uff0c\u4e5f\u53ef\u4ee5\u662f\u6570\u4ee5\u767e\u8ba1\u7684\u8ba1\u7b97\u673a\u6784\u6210\u7684\u4f01\u4e1a\u7f51\u7edc\u3002VLAN\u6240\u6307\u7684LAN\u7279\u6307\u4f7f\u7528\u8def\u7531\u5668\u5206\u5272\u7684\u7f51\u7edc\uff0c\u4e5f\u5c31\u662f\u5e7f\u64ad\u57df\u3002<\/p>\n<\/div>\n

\u4e3a\u4ec0\u4e48\u9700\u8981VLAN<\/span><\/p>\n

1. \u4ec0\u4e48\u662fVLAN?<\/p>\n

VLAN(Virtual LAN)\uff0c\u7ffb\u8bd1\u6210\u4e2d\u6587\u662f\u201c\u865a\u62df\u5c40\u57df\u7f51\u201d\u3002LAN\u53ef\u4ee5\u662f\u7531\u5c11\u6570\u51e0\u53f0\u5bb6\u7528\u8ba1\u7b97\u673a\u6784\u6210\u7684\u7f51\u7edc\uff0c\u4e5f\u53ef\u4ee5\u662f\u6570\u4ee5\u767e\u8ba1\u7684\u8ba1\u7b97\u673a\u6784\u6210\u7684\u4f01\u4e1a\u7f51\u7edc\u3002VLAN\u6240\u6307\u7684LAN\u7279\u6307\u4f7f\u7528\u8def\u7531\u5668\u5206\u5272\u7684\u7f51\u7edc\u2014\u2014\u4e5f\u5c31\u662f\u5e7f\u64ad\u57df\u3002<\/p>\n

\u5728\u6b64\u8ba9\u6211\u4eec\u5148\u590d\u4e60\u4e00\u4e0b\u5e7f\u64ad\u57df\u7684\u6982\u5ff5\u3002\u5e7f\u64ad\u57df\uff0c\u6307\u7684\u662f\u5e7f\u64ad\u5e27(\u76ee\u6807MAC\u5730\u5740\u5168\u90e8\u4e3a1)\u6240\u80fd\u4f20\u9012\u5230\u7684\u8303\u56f4\uff0c\u4ea6\u5373\u80fd\u591f\u76f4\u63a5\u901a\u4fe1\u7684\u8303\u56f4\u3002\u4e25\u683c\u5730\u8bf4\uff0c\u5e76\u4e0d\u4ec5\u4ec5\u662f\u5e7f\u64ad\u5e27\uff0c\u591a\u64ad\u5e27(Multicast Frame)\u548c\u76ee\u6807\u4e0d\u660e\u7684\u5355\u64ad\u5e27(Unknown Unicast Frame)\u4e5f\u80fd\u5728\u540c\u4e00\u4e2a\u5e7f\u64ad\u57df\u4e2d\u7545\u884c\u65e0\u963b<\/a>\u3002<\/p>\n

\u672c\u6765\uff0c\u4e8c\u5c42\u4ea4\u6362\u673a\u53ea\u80fd\u6784\u5efa\u5355\u4e00\u7684\u5e7f\u64ad\u57df\uff0c\u4e0d\u8fc7\u4f7f\u7528VLAN\u529f\u80fd\u540e\uff0c\u5b83\u80fd\u591f\u5c06\u7f51\u7edc\u5206\u5272\u6210\u591a\u4e2a\u5e7f\u64ad\u57df\u3002<\/p>\n

2.\u672a\u5206\u5272\u5e7f\u64ad\u57df\u65f6\u2026\u2026<\/p>\n

\u90a3\u4e48\uff0c\u4e3a\u4ec0\u4e48\u9700\u8981\u5206\u5272\u5e7f\u64ad\u57df\u5462?\u90a3\u662f\u56e0\u4e3a\uff0c\u5982\u679c\u4ec5\u6709\u4e00\u4e2a\u5e7f\u64ad\u57df\uff0c\u6709\u53ef\u80fd\u4f1a\u5f71\u54cd\u5230\u7f51\u7edc\u6574\u4f53\u7684\u4f20\u8f93\u6027\u80fd\u3002\u5177\u4f53\u539f\u56e0\uff0c\u8bf7\u53c2\u770b\u9644\u56fe\u52a0\u6df1\u7406\u89e3\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u56fe\u4e2d\uff0c\u662f\u4e00\u4e2a\u75315\u53f0\u4e8c\u5c42\u4ea4\u6362\u673a(\u4ea4\u6362\u673a1\uff5e5)\u8fde\u63a5\u4e86\u5927\u91cf\u5ba2\u6237\u673a\u6784\u6210\u7684\u7f51\u7edc\u3002\u5047\u8bbe\u8fd9\u65f6\uff0c\u8ba1\u7b97\u673aA\u9700\u8981\u4e0e\u8ba1\u7b97\u673aB\u901a\u4fe1\u3002\u5728\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u901a\u4fe1\u4e2d\uff0c\u5fc5\u987b\u5728\u6570\u636e\u5e27\u4e2d\u6307\u5b9a\u76ee\u6807MAC\u5730\u5740\u624d\u80fd\u6b63\u5e38\u901a\u4fe1\uff0c\u56e0\u6b64\u8ba1\u7b97\u673aA\u5fc5\u987b\u5148\u5e7f\u64ad\u201cARP\u8bf7\u6c42(ARP Request)\u4fe1\u606f\u201d\uff0c\u6765\u5c1d\u8bd5\u83b7\u53d6\u8ba1\u7b97\u673aB\u7684MAC\u5730\u5740\u3002<\/p>\n

\u4ea4\u6362\u673a1\u6536\u5230\u5e7f\u64ad\u5e27(ARP\u8bf7\u6c42)\u540e\uff0c\u4f1a\u5c06\u5b83\u8f6c\u53d1\u7ed9\u9664\u63a5\u6536\u7aef\u53e3\u5916\u7684\u5176\u4ed6\u6240\u6709\u7aef\u53e3\uff0c\u4e5f\u5c31\u662fFlooding\u4e86\u3002\u63a5\u7740\uff0c\u4ea4\u6362\u673a2\u6536\u5230\u5e7f\u64ad\u5e27\u540e\u4e5f\u4f1aFlooding\u3002\u4ea4\u6362\u673a3\u30014\u30015\u4e5f\u8fd8\u4f1aFlooding\u3002\u6700\u7ec8ARP\u8bf7\u6c42\u4f1a\u88ab\u8f6c\u53d1\u5230\u540c\u4e00\u7f51\u7edc\u4e2d\u7684\u6240\u6709\u5ba2\u6237\u673a\u4e0a\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u8bf7\u5927\u5bb6\u6ce8\u610f\u4e00\u4e0b\uff0c\u8fd9\u4e2aARP\u8bf7\u6c42\u539f\u672c\u662f\u4e3a\u4e86\u83b7\u5f97\u8ba1\u7b97\u673aB\u7684MAC\u5730\u5740\u800c\u53d1\u51fa\u7684\u3002\u4e5f\u5c31\u662f\u8bf4\uff1a\u53ea\u8981\u8ba1\u7b97\u673aB\u80fd\u6536\u5230\u5c31\u4e07\u4e8b\u5927\u5409\u4e86\u3002\u53ef\u662f\u4e8b\u5b9e\u4e0a\uff0c\u6570\u636e\u5e27\u5374\u4f20\u904d\u6574\u4e2a\u7f51\u7edc\uff0c\u5bfc\u81f4\u6240\u6709\u7684\u8ba1\u7b97\u673a\u90fd\u6536\u5230\u4e86\u5b83\u3002\u5982\u6b64\u4e00\u6765\uff0c\u4e00\u65b9\u9762\u5e7f\u64ad\u4fe1\u606f\u6d88\u8017\u4e86\u7f51\u7edc\u6574\u4f53\u7684\u5e26\u5bbd\uff0c\u53e6\u4e00\u65b9\u9762\uff0c\u6536\u5230\u5e7f\u64ad\u4fe1\u606f\u7684\u8ba1\u7b97\u673a\u8fd8\u8981\u6d88\u8017\u4e00\u90e8\u5206CPU\u65f6\u95f4\u6765\u5bf9\u5b83\u8fdb\u884c\u5904\u7406\u3002\u9020\u6210\u4e86\u7f51\u7edc\u5e26\u5bbd\u548cCPU\u8fd0\u7b97\u80fd\u529b\u7684\u5927\u91cf\u65e0\u8c13\u6d88\u8017\u3002<\/p>\n

3.\u00a0\u5e7f\u64ad\u4fe1\u606f\u662f\u90a3\u4e48\u7ecf\u5e38\u53d1\u51fa\u7684\u5417?<\/p>\n

\u8bfb\u5230\u8fd9\u91cc\uff0c\u60a8\u4e5f\u8bb8\u4f1a\u95ee\uff1a\u5e7f\u64ad\u4fe1\u606f\u771f\u662f\u90a3\u4e48\u9891\u7e41\u51fa\u73b0\u7684\u5417?<\/p>\n

\u7b54\u6848\u662f\uff1a\u662f\u7684!\u5b9e\u9645\u4e0a\u5e7f\u64ad\u5e27\u4f1a\u975e\u5e38\u9891\u7e41\u5730\u51fa\u73b0\u3002\u5229\u7528TCP\/IP\u534f\u8bae\u6808\u901a\u4fe1\u65f6\uff0c\u9664\u4e86\u524d\u9762\u51fa\u73b0\u7684ARP\u5916\uff0c\u8fd8\u6709\u53ef\u80fd\u9700\u8981\u53d1\u51faDHCP\u3001RIP\u7b49\u5f88\u591a\u5176\u4ed6\u7c7b\u578b\u7684\u5e7f\u64ad\u4fe1\u606f\u3002<\/p>\n

ARP\u5e7f\u64ad\uff0c\u662f\u5728\u9700\u8981\u4e0e\u5176\u4ed6\u4e3b\u673a\u901a\u4fe1\u65f6\u53d1\u51fa\u7684\u3002\u5f53\u5ba2\u6237\u673a\u8bf7\u6c42DHCP\u670d\u52a1\u5668\u5206\u914dIP\u5730\u5740\u65f6\uff0c\u5c31\u5fc5\u987b\u53d1\u51faDHCP\u7684\u5e7f\u64ad\u3002\u800c\u4f7f\u7528RIP\u4f5c\u4e3a\u8def\u7531\u534f\u8bae\u65f6\uff0c\u6bcf\u969430\u79d2\u8def\u7531\u5668\u90fd\u4f1a\u5bf9\u90bb\u8fd1\u7684\u5176\u4ed6\u8def\u7531\u5668\u5e7f\u64ad\u4e00\u6b21\u8def\u7531\u4fe1\u606f\u3002RIP\u4ee5\u5916\u7684\u5176\u4ed6\u8def\u7531\u534f\u8bae\u4f7f\u7528\u591a\u64ad\u4f20\u8f93\u8def\u7531\u4fe1\u606f\uff0c\u8fd9\u4e5f\u4f1a\u88ab\u4ea4\u6362\u673a\u8f6c\u53d1(Flooding)\u3002\u9664\u4e86TCP\/IP\u4ee5\u5916\uff0cNetBEUI\u3001IPX\u548cApple Talk\u7b49\u534f\u8bae\u4e5f\u7ecf\u5e38\u9700\u8981\u7528\u5230\u5e7f\u64ad\u3002\u4f8b\u5982\u5728Windows\u4e0b\u53cc\u51fb\u6253\u5f00\u201c\u7f51\u7edc\u8ba1\u7b97\u673a\u201d\u65f6\u5c31\u4f1a\u53d1\u51fa\u5e7f\u64ad(\u591a\u64ad)\u4fe1\u606f\u3002(Windows XP\u9664\u5916\u2026\u2026)<\/p>\n

\u603b\u4e4b\uff0c\u5e7f\u64ad\u5c31\u5728\u6211\u4eec\u8eab\u8fb9\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e7f\u64ad\u901a\u4fe1\uff1a<\/p>\n

(1)ARP\u8bf7\u6c42\uff1a\u5efa\u7acbIP\u5730\u5740\u548cMAC\u5730\u5740\u7684\u6620\u5c04\u5173\u7cfb\u3002<\/p>\n

(2)RIP\uff1a\u4e00\u79cd\u8def\u7531\u534f\u8bae\u3002<\/p>\n

(3)DHCP\uff1a\u7528\u4e8e\u81ea\u52a8\u8bbe\u5b9aIP\u5730\u5740\u7684\u534f\u8bae\u3002<\/p>\n

(4)NetBEUI\uff1aWindows\u4e0b\u4f7f\u7528\u7684\u7f51\u7edc\u534f\u8bae\u3002<\/p>\n

(5)IPX\uff1aNovellNetware\u4f7f\u7528\u7684\u7f51\u7edc\u534f\u8bae\u3002<\/p>\n

(6)Apple Talk\uff1a\u82f9\u679c\u516c\u53f8\u7684Macintosh\u8ba1\u7b97\u673a\u4f7f\u7528\u7684\u7f51\u7edc\u534f\u8bae\u3002<\/p>\n

\u5982\u679c\u6574\u4e2a\u7f51\u7edc\u53ea\u6709\u4e00\u4e2a\u5e7f\u64ad\u57df\uff0c\u90a3\u4e48\u4e00\u65e6\u53d1\u51fa\u5e7f\u64ad\u4fe1\u606f\uff0c\u5c31\u4f1a\u4f20\u904d\u6574\u4e2a\u7f51\u7edc\uff0c\u5e76\u4e14\u5bf9\u7f51\u7edc\u4e2d\u7684\u4e3b\u673a\u5e26\u6765\u989d\u5916\u7684\u8d1f\u62c5\u3002\u56e0\u6b64\uff0c\u5728\u8bbe\u8ba1LAN\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u5982\u4f55\u624d\u80fd\u6709\u6548\u5730\u5206\u5272\u5e7f\u64ad\u57df\u3002<\/p>\n

4.\u5e7f\u64ad\u57df\u7684\u5206\u5272\u4e0eVLAN\u7684\u5fc5\u8981\u6027<\/p>\n

\u5206\u5272\u5e7f\u64ad\u57df\u65f6\uff0c\u4e00\u822c\u90fd\u5fc5\u987b\u4f7f\u7528\u5230\u8def\u7531\u5668\u3002\u4f7f\u7528\u8def\u7531\u5668\u540e\uff0c\u53ef\u4ee5\u4ee5\u8def\u7531\u5668\u4e0a\u7684\u7f51\u7edc\u63a5\u53e3(LAN Interface)\u4e3a\u5355\u4f4d\u5206\u5272\u5e7f\u64ad\u57df\u3002<\/p>\n

\u4f46\u662f\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\u8def\u7531\u5668\u4e0a\u4e0d\u4f1a\u6709\u592a\u591a\u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u5176\u6570\u76ee\u591a\u57281\uff5e4\u4e2a\u5de6\u53f3\u3002\u968f\u7740\u5bbd\u5e26\u8fde\u63a5\u7684\u666e\u53ca\uff0c\u5bbd\u5e26\u8def\u7531\u5668(\u6216\u8005\u53ebIP\u5171\u4eab\u5668)\u53d8\u5f97\u8f83\u4e3a\u5e38\u89c1\uff0c\u4f46\u662f\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5b83\u4eec\u4e0a\u9762\u867d\u7136\u5e26\u7740\u591a\u4e2a(\u4e00\u822c\u4e3a4\u4e2a\u5de6\u53f3)\u8fde\u63a5LAN\u4e00\u4fa7\u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u4f46\u90a3\u5b9e\u9645\u4e0a\u662f\u8def\u7531\u5668\u5185\u7f6e\u7684\u4ea4\u6362\u673a\uff0c\u5e76\u4e0d\u80fd\u5206\u5272\u5e7f\u64ad\u57df\u3002<\/p>\n

\u51b5\u4e14\u4f7f\u7528\u8def\u7531\u5668\u5206\u5272\u5e7f\u64ad\u57df\u7684\u8bdd\uff0c\u6240\u80fd\u5206\u5272\u7684\u4e2a\u6570\u5b8c\u5168\u53d6\u51b3\u4e8e\u8def\u7531\u5668\u7684\u7f51\u7edc\u63a5\u53e3\u4e2a\u6570\uff0c\u4f7f\u5f97\u7528\u6237\u65e0\u6cd5\u81ea\u7531\u5730\u6839\u636e\u5b9e\u9645\u9700\u8981\u5206\u5272\u5e7f\u64ad\u57df\u3002<\/p>\n

\u4e0e\u8def\u7531\u5668\u76f8\u6bd4\uff0c\u4e8c\u5c42\u4ea4\u6362\u673a\u4e00\u822c\u5e26\u6709\u591a\u4e2a\u7f51\u7edc\u63a5\u53e3\u3002\u56e0\u6b64\u5982\u679c\u80fd\u4f7f\u7528\u5b83\u5206\u5272\u5e7f\u64ad\u57df\uff0c\u90a3\u4e48\u65e0\u7591\u8fd0\u7528\u4e0a\u7684\u7075\u6d3b\u6027\u4f1a\u5927\u5927\u63d0\u9ad8\u3002<\/p>\n

\u7528\u4e8e\u5728\u4e8c\u5c42\u4ea4\u6362\u673a\u4e0a\u5206\u5272\u5e7f\u64ad\u57df\u7684\u6280\u672f\uff0c\u5c31\u662fVLAN\u3002\u901a\u8fc7\u5229\u7528VLAN\uff0c\u6211\u4eec\u53ef\u4ee5\u81ea\u7531\u8bbe\u8ba1\u5e7f\u64ad\u57df\u7684\u6784\u6210\uff0c\u63d0\u9ad8\u7f51\u7edc\u8bbe\u8ba1\u7684\u81ea\u7531\u5ea6\u3002<\/p>\n

\u5b9e\u73b0VLAN\u7684\u673a\u5236<\/span><\/p>\n

1.\u00a0\u5b9e\u73b0VLAN\u7684\u673a\u5236<\/p>\n

\u5728\u7406\u89e3\u4e86\u201c\u4e3a\u4ec0\u4e48\u9700\u8981VLAN\u201d\u4e4b\u540e\uff0c\u63a5\u4e0b\u6765\u8ba9\u6211\u4eec\u6765\u4e86\u89e3\u4e00\u4e0b\u4ea4\u6362\u673a\u662f\u5982\u4f55\u4f7f\u7528VLAN\u5206\u5272\u5e7f\u64ad\u57df\u7684\u3002<\/p>\n

\u9996\u5148\uff0c\u5728\u4e00\u53f0\u672a\u8bbe\u7f6e\u4efb\u4f55VLAN\u7684\u4e8c\u5c42\u4ea4\u6362\u673a\u4e0a\uff0c\u4efb\u4f55\u5e7f\u64ad\u5e27\u90fd\u4f1a\u88ab\u8f6c\u53d1\u7ed9\u9664\u63a5\u6536\u7aef\u53e3\u5916\u7684\u6240\u6709\u5176\u4ed6\u7aef\u53e3(Flooding)\u3002\u4f8b\u5982\uff0c\u8ba1\u7b97\u673aA\u53d1\u9001\u5e7f\u64ad\u4fe1\u606f\u540e\uff0c\u4f1a\u88ab\u8f6c\u53d1\u7ed9\u7aef\u53e32\u30013\u30014\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u8fd9\u65f6\uff0c\u5982\u679c\u5728\u4ea4\u6362\u673a\u4e0a\u751f\u6210\u7ea2\u3001\u84dd\u4e24\u4e2aVLAN;\u540c\u65f6\u8bbe\u7f6e\u7aef\u53e31\u30012\u5c5e\u4e8e\u7ea2\u8272VLAN\u3001\u7aef\u53e33\u30014\u5c5e\u4e8e\u84dd\u8272VLAN\u3002\u518d\u4eceA\u53d1\u51fa\u5e7f\u64ad\u5e27\u7684\u8bdd\uff0c\u4ea4\u6362\u673a\u5c31\u53ea\u4f1a\u628a\u5b83\u8f6c\u53d1\u7ed9\u540c\u5c5e\u4e8e\u4e00\u4e2aVLAN\u7684\u5176\u4ed6\u7aef\u53e3\u2014\u2014\u4e5f\u5c31\u662f\u540c\u5c5e\u4e8e\u7ea2\u8272VLAN\u7684\u7aef\u53e32\uff0c\u4e0d\u4f1a\u518d\u8f6c\u53d1\u7ed9\u5c5e\u4e8e\u84dd\u8272VLAN\u7684\u7aef\u53e3\u3002<\/p>\n

\u540c\u6837\uff0cC\u53d1\u9001\u5e7f\u64ad\u4fe1\u606f\u65f6\uff0c\u53ea\u4f1a\u88ab\u8f6c\u53d1\u7ed9\u5176\u4ed6\u5c5e\u4e8e\u84dd\u8272VLAN\u7684\u7aef\u53e3\uff0c\u4e0d\u4f1a\u88ab\u8f6c\u53d1\u7ed9\u5c5e\u4e8e\u7ea2\u8272VLAN\u7684\u7aef\u53e3\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u5c31\u8fd9\u6837\uff0cVLAN\u901a\u8fc7\u9650\u5236\u5e7f\u64ad\u5e27\u8f6c\u53d1\u7684\u8303\u56f4\u5206\u5272\u4e86\u5e7f\u64ad\u57df\u3002\u4e0a\u56fe\u4e2d\u4e3a\u4e86\u4fbf\u4e8e\u8bf4\u660e\uff0c\u4ee5\u7ea2\u3001\u84dd\u4e24\u8272\u8bc6\u522b\u4e0d\u540c\u7684VLAN\uff0c\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\u5219\u662f\u7528\u201cVLAN ID\u201d\u6765\u533a\u5206\u7684\u3002<\/p>\n

2.\u76f4\u89c2\u5730\u63cf\u8ff0VLAN<\/p>\n

\u5982\u679c\u8981\u66f4\u4e3a\u76f4\u89c2\u5730\u63cf\u8ff0VLAN\u7684\u8bdd\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u5b83\u7406\u89e3\u4e3a\u5c06\u4e00\u53f0\u4ea4\u6362\u673a\u5728\u903b\u8f91\u4e0a\u5206\u5272\u6210\u4e86\u6570\u53f0\u4ea4\u6362\u673a\u3002\u5728\u4e00\u53f0\u4ea4\u6362\u673a\u4e0a\u751f\u6210\u7ea2\u3001\u84dd\u4e24\u4e2aVLAN\uff0c\u4e5f\u53ef\u4ee5\u770b\u4f5c\u662f\u5c06\u4e00\u53f0\u4ea4\u6362\u673a\u6362\u505a\u4e00\u7ea2\u4e00\u84dd\u4e24\u53f0\u865a\u62df\u7684\u4ea4\u6362\u673a\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u5728\u7ea2\u3001\u84dd\u4e24\u4e2aVLAN\u4e4b\u5916\u751f\u6210\u65b0\u7684VLAN\u65f6\uff0c\u53ef\u4ee5\u60f3\u8c61\u6210\u53c8\u6dfb\u52a0\u4e86\u65b0\u7684\u4ea4\u6362\u673a\u3002<\/p>\n

\u4f46\u662f\uff0cVLAN\u751f\u6210\u7684\u903b\u8f91\u4e0a\u7684\u4ea4\u6362\u673a\u662f\u4e92\u4e0d\u76f8\u901a\u7684\u3002\u56e0\u6b64\uff0c\u5728\u4ea4\u6362\u673a\u4e0a\u8bbe\u7f6eVLAN\u540e\uff0c\u5982\u679c\u672a\u505a\u5176\u4ed6\u5904\u7406\uff0cVLAN\u95f4\u662f\u65e0\u6cd5\u901a\u4fe1\u7684\u3002<\/p>\n

\u660e\u660e\u63a5\u5728\u540c\u4e00\u53f0\u4ea4\u6362\u673a\u4e0a\uff0c\u4f46\u5374\u504f\u504f\u65e0\u6cd5\u901a\u4fe1\u2014\u2014\u8fd9\u4e2a\u4e8b\u5b9e\u4e5f\u8bb8\u8ba9\u4eba\u96be\u4ee5\u63a5\u53d7\u3002\u4f46\u5b83\u65e2\u662fVLAN\u65b9\u4fbf\u6613\u7528\u7684\u7279\u5f81\uff0c\u53c8\u662f\u4f7fVLAN\u4ee4\u4eba\u96be\u4ee5\u7406\u89e3\u7684\u539f\u56e0\u3002<\/p>\n

3.\u00a0\u9700\u8981VLAN\u95f4\u901a\u4fe1\u65f6\u600e\u4e48\u529e<\/p>\n

\u90a3\u4e48\uff0c\u5f53\u6211\u4eec\u9700\u8981\u5728\u4e0d\u540c\u7684VLAN\u95f4\u901a\u4fe1\u65f6\u53c8\u8be5\u5982\u4f55\u662f\u597d\u5462?<\/p>\n

\u8bf7\u5927\u5bb6\u518d\u6b21\u56de\u5fc6\u4e00\u4e0b\uff1aVLAN\u662f\u5e7f\u64ad\u57df\u3002\u800c\u901a\u5e38\u4e24\u4e2a\u5e7f\u64ad\u57df\u4e4b\u95f4\u7531\u8def\u7531\u5668\u8fde\u63a5\uff0c\u5e7f\u64ad\u57df\u4e4b\u95f4\u6765\u5f80\u7684\u6570\u636e\u5305\u90fd\u662f\u7531\u8def\u7531\u5668\u4e2d\u7ee7\u7684\u3002\u56e0\u6b64\uff0cVLAN\u95f4\u7684\u901a\u4fe1\u4e5f\u9700\u8981\u8def\u7531\u5668\u63d0\u4f9b\u4e2d\u7ee7\u670d\u52a1\uff0c\u8fd9\u88ab\u79f0\u4f5c\u201cVLAN\u95f4\u8def\u7531\u201d\u3002<\/p>\n

VLAN\u95f4\u8def\u7531\uff0c\u53ef\u4ee5\u4f7f\u7528\u666e\u901a\u7684\u8def\u7531\u5668\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e09\u5c42\u4ea4\u6362\u673a\u3002\u5176\u4e2d\u7684\u5177\u4f53\u5185\u5bb9\uff0c\u7b49\u6709\u673a\u4f1a\u518d\u7ec6\u8bf4\u5427\u3002\u5728\u8fd9\u91cc\u5e0c\u671b\u5927\u5bb6\u5148\u8bb0\u4f4f\u4e0d\u540cVLAN\u95f4\u4e92\u76f8\u901a\u4fe1\u65f6\u9700\u8981\u7528\u5230\u8def\u7531\u529f\u80fd\u3002<\/p>\n

VLAN\u7684\u8bbf\u95ee\u94fe\u63a5(Access Link)<\/span><\/p>\n

1.\u4ea4\u6362\u673a\u7684\u7aef\u53e3\u7c7b\u578b<\/p>\n

\u4ea4\u6362\u673a\u7684\u7aef\u53e3\uff0c\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u4e24\u79cd\uff1a<\/p>\n

(1)\u8bbf\u95ee\u94fe\u63a5(Access Link)<\/p>\n

(2)\u6c47\u805a\u94fe\u63a5(Trunk Link)<\/p>\n

\u63a5\u4e0b\u6765\u5c31\u8ba9\u6211\u4eec\u6765\u4f9d\u6b21\u5b66\u4e60\u8fd9\u4e24\u79cd\u4e0d\u540c\u7aef\u53e3\u7684\u7279\u5f81\u3002\u8fd9\u4e00\u8bb2\uff0c\u9996\u5148\u5b66\u4e60\u201c\u8bbf\u95ee\u94fe\u63a5\u201d\u3002<\/p>\n

2.\u8bbf\u95ee\u94fe\u63a5<\/p>\n

\u8bbf\u95ee\u94fe\u63a5\uff0c\u6307\u7684\u662f\u201c\u53ea\u5c5e\u4e8e\u4e00\u4e2aVLAN\uff0c\u4e14\u4ec5\u5411\u8be5VLAN\u8f6c\u53d1\u6570\u636e\u5e27\u201d\u7684\u7aef\u53e3\u3002\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u8bbf\u95ee\u94fe\u63a5\u6240\u8fde\u7684\u662f\u5ba2\u6237\u673a\u3002<\/p>\n

\u901a\u5e38\u8bbe\u7f6eVLAN\u7684\u987a\u5e8f\u662f\uff1a<\/p>\n

(1)\u751f\u6210VLAN<\/p>\n

(2)\u8bbe\u5b9a\u8bbf\u95ee\u94fe\u63a5(\u51b3\u5b9a\u5404\u7aef\u53e3\u5c5e\u4e8e\u54ea\u4e00\u4e2aVLAN)<\/p>\n

\u8bbe\u5b9a\u8bbf\u95ee\u94fe\u63a5\u7684\u624b\u6cd5\uff0c\u53ef\u4ee5\u662f\u4e8b\u5148\u56fa\u5b9a\u7684\u3001\u4e5f\u53ef\u4ee5\u662f\u6839\u636e\u6240\u8fde\u7684\u8ba1\u7b97\u673a\u800c\u52a8\u6001\u6539\u53d8\u8bbe\u5b9a\u3002\u524d\u8005\u88ab\u79f0\u4e3a\u201c\u9759\u6001VLAN\u201d\u3001\u540e\u8005\u81ea\u7136\u5c31\u662f\u201c\u52a8\u6001VLAN\u201d\u4e86\u3002<\/p>\n

\u25cf \u9759\u6001VLAN\u2014\u2014\u57fa\u4e8e\u7aef\u53e3<\/p>\n

\u9759\u6001VLAN\u53c8\u88ab\u79f0\u4e3a\u57fa\u4e8e\u7aef\u53e3\u7684VLAN(PortBased VLAN)\u3002\u987e\u540d\u601d\u4e49\uff0c\u5c31\u662f\u660e\u786e\u6307\u5b9a\u5404\u7aef\u53e3\u5c5e\u4e8e\u54ea\u4e2aVLAN\u7684\u8bbe\u5b9a\u65b9\u6cd5\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u7531\u4e8e\u9700\u8981\u4e00\u4e2a\u4e2a\u7aef\u53e3\u5730\u6307\u5b9a\uff0c\u56e0\u6b64\u5f53\u7f51\u7edc\u4e2d\u7684\u8ba1\u7b97\u673a\u6570\u76ee\u8d85\u8fc7\u4e00\u5b9a\u6570\u5b57(\u6bd4\u5982\u6570\u767e\u53f0)\u540e\uff0c\u8bbe\u5b9a\u64cd\u4f5c\u5c31\u4f1a\u53d8\u5f97\u70e6\u6742\u65e0\u6bd4\u3002\u5e76\u4e14\uff0c\u5ba2\u6237\u673a\u6bcf\u6b21\u53d8\u66f4\u6240\u8fde\u7aef\u53e3\uff0c\u90fd\u5fc5\u987b\u540c\u65f6\u66f4\u6539\u8be5\u7aef\u53e3\u6240\u5c5eVLAN\u7684\u8bbe\u5b9a\u2014\u2014\u8fd9\u663e\u7136\u4e0d\u9002\u5408\u90a3\u4e9b\u9700\u8981\u9891\u7e41\u6539\u53d8\u62d3\u8865\u7ed3\u6784\u7684\u7f51\u7edc\u3002<\/p>\n

\u25cf \u52a8\u6001VLAN<\/p>\n

\u53e6\u4e00\u65b9\u9762\uff0c\u52a8\u6001VLAN\u5219\u662f\u6839\u636e\u6bcf\u4e2a\u7aef\u53e3\u6240\u8fde\u7684\u8ba1\u7b97\u673a\uff0c\u968f\u65f6\u6539\u53d8\u7aef\u53e3\u6240\u5c5e\u7684VLAN\u3002\u8fd9\u5c31\u53ef\u4ee5\u907f\u514d\u4e0a\u8ff0\u7684\u66f4\u6539\u8bbe\u5b9a\u4e4b\u7c7b\u7684\u64cd\u4f5c\u3002\u52a8\u6001VLAN\u53ef\u4ee5\u5927\u81f4\u5206\u4e3a3\u7c7b\uff1a<\/p>\n

(1)\u57fa\u4e8eMAC\u5730\u5740\u7684VLAN(MAC Based VLAN)<\/p>\n

(2)\u57fa\u4e8e\u5b50\u7f51\u7684VLAN(Subnet Based VLAN)<\/p>\n

(3)\u57fa\u4e8e\u7528\u6237\u7684VLAN(User Based VLAN)<\/p>\n

\u5176\u95f4\u7684\u5dee\u5f02\uff0c\u4e3b\u8981\u5728\u4e8e\u6839\u636eOSI\u53c2\u7167\u6a21\u578b\u54ea\u4e00\u5c42\u7684\u4fe1\u606f\u51b3\u5b9a\u7aef\u53e3\u6240\u5c5e\u7684VLAN\u3002<\/p>\n

\u25cf \u57fa\u4e8eMAC\u5730\u5740\u7684VLAN<\/p>\n

\u57fa\u4e8eMAC\u5730\u5740\u7684VLAN\uff0c\u5c31\u662f\u901a\u8fc7\u67e5\u8be2\u5e76\u8bb0\u5f55\u7aef\u53e3\u6240\u8fde\u8ba1\u7b97\u673a\u4e0a\u7f51\u5361\u7684MAC\u5730\u5740\u6765\u51b3\u5b9a\u7aef\u53e3\u7684\u6240\u5c5e\u3002\u5047\u5b9a\u6709\u4e00\u4e2aMAC\u5730\u5740\u201cA\u201d\u88ab\u4ea4\u6362\u673a\u8bbe\u5b9a\u4e3a\u5c5e\u4e8eVLAN \u201c10\u201d\uff0c\u90a3\u4e48\u4e0d\u8bbaMAC\u5730\u5740\u4e3a\u201cA\u201d\u7684\u8fd9\u53f0\u8ba1\u7b97\u673a\u8fde\u5728\u4ea4\u6362\u673a\u54ea\u4e2a\u7aef\u53e3\uff0c\u8be5\u7aef\u53e3\u90fd\u4f1a\u88ab\u5212\u5206\u5230VLAN 10\u4e2d\u53bb\u3002\u8ba1\u7b97\u673a\u8fde\u5728\u7aef\u53e31\u65f6\uff0c\u7aef\u53e31\u5c5e\u4e8eVLAN 10;\u800c\u8ba1\u7b97\u673a\u8fde\u5728\u7aef\u53e32\u65f6\uff0c\u5219\u662f\u7aef\u53e32\u5c5e\u4e8eVLAN 10\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u7531\u4e8e\u662f\u57fa\u4e8eMAC\u5730\u5740\u51b3\u5b9a\u6240\u5c5eVLAN\u7684\uff0c\u56e0\u6b64\u53ef\u4ee5\u7406\u89e3\u4e3a\u8fd9\u662f\u4e00\u79cd\u5728OSI\u7684\u7b2c\u4e8c\u5c42\u8bbe\u5b9a\u8bbf\u95ee\u94fe\u63a5\u7684\u529e\u6cd5\u3002<\/p>\n

\u4f46\u662f\uff0c\u57fa\u4e8eMAC\u5730\u5740\u7684VLAN\uff0c\u5728\u8bbe\u5b9a\u65f6\u5fc5\u987b\u8c03\u67e5\u6240\u8fde\u63a5\u7684\u6240\u6709\u8ba1\u7b97\u673a\u7684MAC\u5730\u5740\u5e76\u52a0\u4ee5\u767b\u5f55\u3002\u800c\u4e14\u5982\u679c\u8ba1\u7b97\u673a\u4ea4\u6362\u4e86\u7f51\u5361\uff0c\u8fd8\u662f\u9700\u8981\u66f4\u6539\u8bbe\u5b9a\u3002<\/p>\n

\u25cf \u57fa\u4e8eIP\u5730\u5740\u7684VLAN<\/p>\n

\u57fa\u4e8e\u5b50\u7f51\u7684VLAN\uff0c\u5219\u662f\u901a\u8fc7\u6240\u8fde\u8ba1\u7b97\u673a\u7684IP\u5730\u5740\uff0c\u6765\u51b3\u5b9a\u7aef\u53e3\u6240\u5c5eVLAN\u7684\u3002\u4e0d\u50cf\u57fa\u4e8eMAC\u5730\u5740\u7684VLAN\uff0c\u5373\u4f7f\u8ba1\u7b97\u673a\u56e0\u4e3a\u4ea4\u6362\u4e86\u7f51\u5361\u6216\u662f\u5176\u4ed6\u539f\u56e0\u5bfc\u81f4MAC\u5730\u5740\u6539\u53d8\uff0c\u53ea\u8981\u5b83\u7684IP\u5730\u5740\u4e0d\u53d8\uff0c\u5c31\u4ecd\u53ef\u4ee5\u52a0\u5165\u539f\u5148\u8bbe\u5b9a\u7684VLAN\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u56e0\u6b64\uff0c\u4e0e\u57fa\u4e8eMAC\u5730\u5740\u7684VLAN\u76f8\u6bd4\uff0c\u80fd\u591f\u66f4\u4e3a\u7b80\u4fbf\u5730\u6539\u53d8\u7f51\u7edc\u7ed3\u6784\u3002IP\u5730\u5740\u662fOSI\u53c2\u7167\u6a21\u578b\u4e2d\u7b2c\u4e09\u5c42\u7684\u4fe1\u606f\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u7406\u89e3\u4e3a\u57fa\u4e8e\u5b50\u7f51\u7684VLAN\u662f\u4e00\u79cd\u5728OSI\u7684\u7b2c\u4e09\u5c42\u8bbe\u5b9a\u8bbf\u95ee\u94fe\u63a5\u7684\u65b9\u6cd5\u3002<\/p>\n

\u57fa\u4e8e\u7528\u6237\u7684VLAN\uff0c\u5219\u662f\u6839\u636e\u4ea4\u6362\u673a\u5404\u7aef\u53e3\u6240\u8fde\u7684\u8ba1\u7b97\u673a\u4e0a\u5f53\u524d\u767b\u5f55\u7684\u7528\u6237\uff0c\u6765\u51b3\u5b9a\u8be5\u7aef\u53e3\u5c5e\u4e8e\u54ea\u4e2aVLAN\u3002\u8fd9\u91cc\u7684\u7528\u6237\u8bc6\u522b\u4fe1\u606f\uff0c\u4e00\u822c\u662f\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u767b\u5f55\u7684\u7528\u6237\uff0c\u6bd4\u5982\u53ef\u4ee5\u662fWindows\u57df\u4e2d\u4f7f\u7528\u7684\u7528\u6237\u540d\u3002\u8fd9\u4e9b\u7528\u6237\u540d\u4fe1\u606f\uff0c\u5c5e\u4e8eOSI\u7b2c\u56db\u5c42\u4ee5\u4e0a\u7684\u4fe1\u606f\u3002<\/p>\n

\u603b\u7684\u6765\u8bf4\uff0c\u51b3\u5b9a\u7aef\u53e3\u6240\u5c5eVLAN\u65f6\u5229\u7528\u7684\u4fe1\u606f\u5728OSI\u4e2d\u7684\u5c42\u9762\u8d8a\u9ad8\uff0c\u5c31\u8d8a\u9002\u4e8e\u6784\u5efa\u7075\u6d3b\u591a\u53d8\u7684\u7f51\u7edc\u3002<\/p>\n

VLAN\u7684\u6c47\u805a\u94fe\u63a5(Trunk Link)<\/span><\/p>\n

1.\u9700\u8981\u8bbe\u7f6e\u8de8\u8d8a\u591a\u53f0\u4ea4\u6362\u673a\u7684VLAN\u65f6\u2026\u2026<\/p>\n

\u5230\u6b64\u4e3a\u6b62\uff0c\u6211\u4eec\u5b66\u4e60\u7684\u90fd\u662f\u4f7f\u7528\u5355\u53f0\u4ea4\u6362\u673a\u8bbe\u7f6eVLAN\u65f6\u7684\u60c5\u51b5\u3002\u90a3\u4e48\uff0c\u5982\u679c\u9700\u8981\u8bbe\u7f6e\u8de8\u8d8a\u591a\u53f0\u4ea4\u6362\u673a\u7684VLAN\u65f6\u53c8\u5982\u4f55\u5462?<\/p>\n

\u5728\u89c4\u5212\u4f01\u4e1a\u7ea7\u7f51\u7edc\u65f6\uff0c\u5f88\u6709\u53ef\u80fd\u4f1a\u9047\u5230\u96b6\u5c5e\u4e8e\u540c\u4e00\u90e8\u95e8\u7684\u7528\u6237\u5206\u6563\u5728\u540c\u4e00\u5ea7\u5efa\u7b51\u7269\u4e2d\u7684\u4e0d\u540c\u697c\u5c42\u7684\u60c5\u51b5\uff0c\u8fd9\u65f6\u53ef\u80fd\u5c31\u9700\u8981\u8003\u8651\u5230\u5982\u4f55\u8de8\u8d8a\u591a\u53f0\u4ea4\u6362\u673a\u8bbe\u7f6eVLAN\u7684\u95ee\u9898\u4e86\u3002\u5047\u8bbe\u6709\u5982\u4e0b\u56fe\u6240\u793a\u7684\u7f51\u7edc\uff0c\u4e14\u9700\u8981\u5c06\u4e0d\u540c\u697c\u5c42\u7684A\u3001C\u548cB\u3001D\u8bbe\u7f6e\u4e3a\u540c\u4e00\u4e2aVLAN\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u8fd9\u65f6\u6700\u5173\u952e\u7684\u5c31\u662f\u201c\u4ea4\u6362\u673a1\u548c\u4ea4\u6362\u673a2\u8be5\u5982\u4f55\u8fde\u63a5\u624d\u597d\u5462?\u201d<\/p>\n

\u6700\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u81ea\u7136\u662f\u5728\u4ea4\u6362\u673a1\u548c\u4ea4\u6362\u673a2\u4e0a\u5404\u8bbe\u4e00\u4e2a\u7ea2\u3001\u84ddVLAN\u4e13\u7528\u7684\u63a5\u53e3\u5e76\u4e92\u8054\u4e86\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u4f46\u662f\uff0c\u8fd9\u4e2a\u529e\u6cd5\u4ece\u6269\u5c55\u6027\u548c\u7ba1\u7406\u6548\u7387\u6765\u770b\u90fd\u4e0d\u597d\u3002\u4f8b\u5982\uff0c\u5728\u73b0\u6709\u7f51\u7edc\u57fa\u7840\u4e0a\u518d\u65b0\u5efaVLAN\u65f6\uff0c\u4e3a\u4e86\u8ba9\u8fd9\u4e2aVLAN\u80fd\u591f\u4e92\u901a\uff0c\u5c31\u9700\u8981\u5728\u4ea4\u6362\u673a\u95f4\u8fde\u63a5\u65b0\u7684\u7f51\u7ebf\u3002\u5efa\u7b51\u7269\u697c\u5c42\u95f4\u7684\u7eb5\u5411\u5e03\u7ebf\u662f\u6bd4\u8f83\u9ebb\u70e6\u7684\uff0c\u4e00\u822c\u4e0d\u80fd\u7531\u57fa\u5c42\u7ba1\u7406\u4eba\u5458\u968f\u610f\u8fdb\u884c\u3002\u5e76\u4e14\uff0cVLAN\u8d8a\u591a\uff0c\u697c\u5c42\u95f4(\u4e25\u683c\u5730\u8bf4\u662f\u4ea4\u6362\u673a\u95f4)\u4e92\u8054\u6240\u9700\u7684\u7aef\u53e3\u4e5f\u8d8a\u6765\u8d8a\u591a\uff0c\u4ea4\u6362\u673a\u7aef\u53e3\u7684\u5229\u7528\u6548\u7387\u4f4e\u662f\u5bf9\u8d44\u6e90\u7684\u4e00\u79cd\u6d6a\u8d39\u3001\u4e5f\u9650\u5236\u4e86\u7f51\u7edc\u7684\u6269\u5c55\u3002<\/p>\n

\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u4f4e\u6548\u7387\u7684\u8fde\u63a5\u65b9\u5f0f\uff0c\u4eba\u4eec\u60f3\u529e\u6cd5\u8ba9\u4ea4\u6362\u673a\u95f4\u4e92\u8054\u7684\u7f51\u7ebf\u96c6\u4e2d\u5230\u4e00\u6839\u4e0a\uff0c\u8fd9\u65f6\u4f7f\u7528\u7684\u5c31\u662f\u6c47\u805a\u94fe\u63a5(Trunk Link)\u3002<\/p>\n

2.\u4f55\u8c13\u6c47\u805a\u94fe\u63a5?<\/p>\n

\u6c47\u805a\u94fe\u63a5(Trunk Link)\u6307\u7684\u662f\u80fd\u591f\u8f6c\u53d1\u591a\u4e2a\u4e0d\u540cVLAN\u7684\u901a\u4fe1\u7684\u7aef\u53e3\u3002<\/p>\n

\u6c47\u805a\u94fe\u8def\u4e0a\u6d41\u901a\u7684\u6570\u636e\u5e27\uff0c\u90fd\u88ab\u9644\u52a0\u4e86\u7528\u4e8e\u8bc6\u522b\u5206\u5c5e\u4e8e\u54ea\u4e2aVLAN\u7684\u7279\u6b8a\u4fe1\u606f\u3002<\/p>\n

\u73b0\u5728\u518d\u8ba9\u6211\u4eec\u56de\u8fc7\u5934\u6765\u8003\u8651\u4e00\u4e0b\u521a\u624d\u90a3\u4e2a\u7f51\u7edc\u5982\u679c\u91c7\u7528\u6c47\u805a\u94fe\u8def\u53c8\u4f1a\u5982\u4f55\u5462?\u7528\u6237\u53ea\u9700\u8981\u7b80\u5355\u5730\u5c06\u4ea4\u6362\u673a\u95f4\u4e92\u8054\u7684\u7aef\u53e3\u8bbe\u5b9a\u4e3a\u6c47\u805a\u94fe\u63a5\u5c31\u53ef\u4ee5\u4e86\u3002\u8fd9\u65f6\u4f7f\u7528\u7684\u7f51\u7ebf\u8fd8\u662f\u666e\u901a\u7684UTP\u7ebf\uff0c\u800c\u4e0d\u662f\u4ec0\u4e48\u5176\u4ed6\u7684\u7279\u6b8a\u5e03\u7ebf\u3002\u56fe\u4f8b\u4e2d\u662f\u4ea4\u6362\u673a\u95f4\u4e92\u8054\uff0c\u56e0\u6b64\u9700\u8981\u7528\u4ea4\u53c9\u7ebf\u6765\u8fde\u63a5\u3002<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u5177\u4f53\u770b\u770b\u6c47\u805a\u94fe\u63a5\u662f\u5982\u4f55\u5b9e\u73b0\u8de8\u8d8a\u4ea4\u6362\u673a\u95f4\u7684VLAN\u7684\u3002<\/p>\n

A\u53d1\u9001\u7684\u6570\u636e\u5e27\u4ece\u4ea4\u6362\u673a1\u7ecf\u8fc7\u6c47\u805a\u94fe\u8def\u5230\u8fbe\u4ea4\u6362\u673a2\u65f6\uff0c\u5728\u6570\u636e\u5e27\u4e0a\u9644\u52a0\u4e86\u8868\u793a\u5c5e\u4e8e\u7ea2\u8272VLAN\u7684\u6807\u8bb0\u3002<\/p>\n

\u4ea4\u6362\u673a2\u6536\u5230\u6570\u636e\u5e27\u540e\uff0c\u7ecf\u8fc7\u68c0\u67e5VLAN\u6807\u8bc6\u53d1\u73b0\u8fd9\u4e2a\u6570\u636e\u5e27\u662f\u5c5e\u4e8e\u7ea2\u8272VLAN\u7684\uff0c\u56e0\u6b64\u53bb\u9664\u6807\u8bb0\u540e\u6839\u636e\u9700\u8981\u5c06\u590d\u539f\u7684\u6570\u636e\u5e27\u53ea\u8f6c\u53d1\u7ed9\u5176\u4ed6\u5c5e\u4e8e\u7ea2\u8272VLAN\u7684\u7aef\u53e3\u3002\u8fd9\u65f6\u7684\u8f6c\u9001\uff0c\u662f\u6307\u7ecf\u8fc7\u786e\u8ba4\u76ee\u6807MAC\u5730\u5740\u5e76\u4e0eMAC\u5730\u5740\u5217\u8868\u6bd4\u5bf9\u540e\u53ea\u8f6c\u53d1\u7ed9\u76ee\u6807MAC\u5730\u5740\u6240\u8fde\u7684\u7aef\u53e3\u3002\u53ea\u6709\u5f53\u6570\u636e\u5e27\u662f\u4e00\u4e2a\u5e7f\u64ad\u5e27\u3001\u591a\u64ad\u5e27\u6216\u662f\u76ee\u6807\u4e0d\u660e\u7684\u5e27\u65f6\uff0c\u5b83\u624d\u4f1a\u88ab\u8f6c\u53d1\u5230\u6240\u6709\u5c5e\u4e8e\u7ea2\u8272VLAN\u7684\u7aef\u53e3\u3002<\/p>\n

\u84dd\u8272VLAN\u53d1\u9001\u6570\u636e\u5e27\u65f6\u7684\u60c5\u5f62\u4e5f\u4e0e\u6b64\u76f8\u540c\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u901a\u8fc7\u6c47\u805a\u94fe\u8def\u65f6\u9644\u52a0\u7684VLAN\u8bc6\u522b\u4fe1\u606f\uff0c\u6709\u53ef\u80fd\u652f\u6301\u6807\u51c6\u7684\u201cIEEE 802.1Q\u201d\u534f\u8bae\uff0c\u4e5f\u53ef\u80fd\u662fCisco\u4ea7\u54c1\u72ec\u6709\u7684\u201cISL(Inter Switch Link)\u201d\u3002\u5982\u679c\u4ea4\u6362\u673a\u652f\u6301\u8fd9\u4e9b\u89c4\u683c\uff0c\u90a3\u4e48\u7528\u6237\u5c31\u80fd\u591f\u9ad8\u6548\u7387\u5730\u6784\u7b51\u6a2a\u8de8\u591a\u53f0\u4ea4\u6362\u673a\u7684VLAN\u3002<\/p>\n

\u53e6\u5916\uff0c\u6c47\u805a\u94fe\u8def\u4e0a\u6d41\u901a\u7740\u591a\u4e2aVLAN\u7684\u6570\u636e\uff0c\u81ea\u7136\u8d1f\u8f7d\u8f83\u91cd\u3002\u56e0\u6b64\uff0c\u5728\u8bbe\u5b9a\u6c47\u805a\u94fe\u63a5\u65f6\uff0c\u6709\u4e00\u4e2a\u524d\u63d0\u5c31\u662f\u5fc5\u987b\u652f\u6301100Mbps\u4ee5\u4e0a\u7684\u4f20\u8f93\u901f\u5ea6\u3002<\/p>\n

\u53e6\u5916\uff0c\u9ed8\u8ba4\u6761\u4ef6\u4e0b\uff0c\u6c47\u805a\u94fe\u63a5\u4f1a\u8f6c\u53d1\u4ea4\u6362\u673a\u4e0a\u5b58\u5728\u7684\u6240\u6709VLAN\u7684\u6570\u636e\u3002\u6362\u4e00\u4e2a\u89d2\u5ea6\u770b\uff0c\u53ef\u4ee5\u8ba4\u4e3a\u6c47\u805a\u94fe\u63a5(\u7aef\u53e3)\u540c\u65f6\u5c5e\u4e8e\u4ea4\u6362\u673a\u4e0a\u6240\u6709\u7684VLAN\u3002\u7531\u4e8e\u5b9e\u9645\u5e94\u7528\u4e2d\u5f88\u53ef\u80fd\u5e76\u4e0d\u9700\u8981\u8f6c\u53d1\u6240\u6709VLAN\u7684\u6570\u636e\uff0c\u56e0\u6b64\u4e3a\u4e86\u51cf\u8f7b\u4ea4\u6362\u673a\u7684\u8d1f\u8f7d\u3001\u4e5f\u4e3a\u4e86\u51cf\u5c11\u5bf9\u5e26\u5bbd\u7684\u6d6a\u8d39\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7528\u6237\u8bbe\u5b9a\u9650\u5236\u80fd\u591f\u7ecf\u7531\u6c47\u805a\u94fe\u8def\u4e92\u8054\u7684VLAN\u3002<\/p>\n

\u5173\u4e8eIEEE 802.1Q\u548cISL\u7684\u5177\u4f53\u5185\u5bb9\uff0c\u5c06\u5728\u4e0b\u4e00\u8bb2\u4e2d\u63d0\u5230\u3002<\/p>\n

3.\u8bbf\u95ee\u94fe\u63a5\u7684\u603b\u7ed3<\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u8bbe\u5b9a\u8bbf\u95ee\u94fe\u63a5\u7684\u624b\u6cd5\u6709\u9759\u6001VLAN\u548c\u52a8\u6001VLAN\u4e24\u79cd\uff0c\u5176\u4e2d\u52a8\u6001VLAN\u53c8\u53ef\u4ee5\u7ee7\u7eed\u7ec6\u5206\u6210\u51e0\u4e2a\u5c0f\u7c7b\u3002<\/p>\n

\u5176\u4e2d\u57fa\u4e8e\u5b50\u7f51\u7684VLAN\u548c\u57fa\u4e8e\u7528\u6237\u7684VLAN\u6709\u53ef\u80fd\u662f\u7f51\u7edc\u8bbe\u5907\u5382\u5546\u4f7f\u7528\u72ec\u6709\u7684\u534f\u8bae\u5b9e\u73b0\u7684\uff0c\u4e0d\u540c\u5382\u5546\u7684\u8bbe\u5907\u4e4b\u95f4\u4e92\u8054\u6709\u53ef\u80fd\u51fa\u73b0\u517c\u5bb9\u6027\u95ee\u9898;\u56e0\u6b64\u5728\u9009\u62e9\u4ea4\u6362\u673a\u65f6\uff0c\u4e00\u5b9a\u8981\u6ce8\u610f\u4e8b\u5148\u786e\u8ba4\u3002<\/p>\n

\u4e0b\u8868\u603b\u7ed3\u4e86\u9759\u6001VLAN\u548c\u52a8\u6001VLAN\u7684\u76f8\u5173\u4fe1\u606f\u3002<\/p>\n

\u79cd\u7c7b\u89e3\u8bf4<\/p>\n

\u9759\u6001VLAN(\u57fa\u4e8e\u7aef\u53e3\u7684VLAN)\u5c06\u4ea4\u6362\u673a\u7684\u5404\u7aef\u53e3\u56fa\u5b9a\u6307\u6d3e\u7ed9VLAN<\/p>\n

\u52a8\u6001VLAN\u57fa\u4e8eMAC\u5730\u5740\u7684VLAN\u6839\u636e\u5404\u7aef\u53e3\u6240\u8fde\u8ba1\u7b97\u673a\u7684MAC\u5730\u5740\u8bbe\u5b9a<\/p>\n

\u57fa\u4e8e\u5b50\u7f51\u7684VLAN\u6839\u636e\u5404\u7aef\u53e3\u6240\u8fde\u8ba1\u7b97\u673a\u7684IP\u5730\u5740\u8bbe\u5b9a<\/p>\n

\u57fa\u4e8e\u7528\u6237\u7684VLAN\u6839\u636e\u7aef\u53e3\u6240\u8fde\u8ba1\u7b97\u673a\u4e0a\u767b\u5f55\u7528\u6237\u8bbe\u5b9a<\/p>\n

VLAN\u7684\u6c47\u805a\u65b9\u5f0f\u2014\u2014IEEE802.1Q\u4e0eISL<\/span><\/p>\n

1.\u6c47\u805a\u65b9\u5f0f<\/p>\n

\u5728\u4ea4\u6362\u673a\u7684\u6c47\u805a\u94fe\u63a5\u4e0a\uff0c\u53ef\u4ee5\u901a\u8fc7\u5bf9\u6570\u636e\u5e27\u9644\u52a0VLAN\u4fe1\u606f\uff0c\u6784\u5efa\u8de8\u8d8a\u591a\u53f0\u4ea4\u6362\u673a\u7684VLAN\u3002<\/p>\n

\u9644\u52a0VLAN\u4fe1\u606f\u7684\u65b9\u6cd5\uff0c\u6700\u5177\u6709\u4ee3\u8868\u6027\u7684\u6709\uff1a<\/p>\n

(1)IEEE 802.1Q<\/p>\n

(2)ISL<\/p>\n

\u73b0\u5728\u5c31\u8ba9\u6211\u4eec\u770b\u770b\u8fd9\u4e24\u79cd\u534f\u8bae\u5206\u522b\u5982\u4f55\u5bf9\u6570\u636e\u5e27\u9644\u52a0VLAN\u4fe1\u606f\u3002<\/p>\n

2.IEEE 802.1Q<\/p>\n

IEEE 802.1Q\uff0c\u4fd7\u79f0\u201cDot One Q\u201d\uff0c\u662f\u7ecf\u8fc7IEEE\u8ba4\u8bc1\u7684\u5bf9\u6570\u636e\u5e27\u9644\u52a0VLAN\u8bc6\u522b\u4fe1\u606f\u7684\u534f\u8bae\u3002<\/p>\n

\u5728\u6b64\uff0c\u8bf7\u5927\u5bb6\u5148\u56de\u5fc6\u4e00\u4e0b\u4ee5\u592a\u7f51\u6570\u636e\u5e27\u7684\u6807\u51c6\u683c\u5f0f\u3002<\/p>\n

IEEE 802.1Q\u6240\u9644\u52a0\u7684VLAN\u8bc6\u522b\u4fe1\u606f\uff0c\u4f4d\u4e8e\u6570\u636e\u5e27\u4e2d\u201c\u53d1\u9001\u6e90MAC\u5730\u5740\u201d\u4e0e\u201c\u7c7b\u522b\u57df\u201d(Type Field)\u4e4b\u95f4\u3002\u5177\u4f53\u5185\u5bb9\u4e3a2\u5b57\u8282\u7684TPID(Tag Protocol IDentifier)\u548c2\u5b57\u8282\u7684TCI(Tag Control Information)\uff0c\u5171\u8ba14\u5b57\u8282\u3002<\/p>\n

\u5728\u6570\u636e\u5e27\u4e2d\u6dfb\u52a0\u4e864\u5b57\u8282\u7684\u5185\u5bb9\uff0c\u90a3\u4e48CRC\u503c\u81ea\u7136\u4e5f\u4f1a\u6709\u6240\u53d8\u5316\u3002\u8fd9\u65f6\u6570\u636e\u5e27\u4e0a\u7684CRC\u662f\u63d2\u5165TPID\u3001TCI\u540e\uff0c\u5bf9\u5305\u62ec\u5b83\u4eec\u5728\u5185\u7684\u6574\u4e2a\u6570\u636e\u5e27\u91cd\u65b0\u8ba1\u7b97\u540e\u6240\u5f97\u7684\u503c\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u800c\u5f53\u6570\u636e\u5e27\u79bb\u5f00\u6c47\u805a\u94fe\u8def\u65f6\uff0cTPID\u548cTCI\u4f1a\u88ab\u53bb\u9664\uff0c\u8fd9\u65f6\u8fd8\u4f1a\u8fdb\u884c\u4e00\u6b21CRC\u7684\u91cd\u65b0\u8ba1\u7b97\u3002<\/p>\n

TPID\u5b57\u6bb5\u5728\u4ee5\u592a\u7f51\u62a5\u6587\u4e2d\u6240\u5904\u4f4d\u7f6e\u4e0e\u4e0d\u5e26VLAN Tag\u7684\u62a5\u6587\u4e2d\u534f\u8bae\u7c7b\u578b\u5b57\u6bb5\u6240\u5904\u4f4d\u7f6e\u76f8\u540c\u3002TPID\u7684\u503c\u56fa\u5b9a\u4e3a0x8100\uff0c\u5b83\u6807\u793a\u7f51\u7edc\u5e27\u627f\u8f7d\u7684802.1Q\u7c7b\u578b\uff0c\u4ea4\u6362\u673a\u901a\u8fc7\u5b83\u6765\u786e\u5b9a\u6570\u636e\u5e27\u5185\u9644\u52a0\u4e86\u57fa\u4e8eIEEE 802.1Q\u7684VLAN\u4fe1\u606f\u3002\u800c\u5b9e\u8d28\u4e0a\u7684VLAN ID\uff0c\u662fTCI\u4e2d\u768412\u4f4d\u5143\u3002\u7531\u4e8e\u603b\u5171\u670912\u4f4d\uff0c\u56e0\u6b64\u6700\u591a\u53ef\u4f9b\u8bc6\u522b4096\u4e2aVLAN\u3002<\/p>\n

\u57fa\u4e8eIEEE 802.1Q\u9644\u52a0\u7684VLAN\u4fe1\u606f\uff0c\u5c31\u50cf\u5728\u4f20\u9012\u7269\u54c1\u65f6\u9644\u52a0\u7684\u6807\u7b7e\u3002\u56e0\u6b64\uff0c\u5b83\u4e5f\u88ab\u79f0\u4f5c\u201c\u6807\u7b7e\u578bVLAN\u201d(Tagging VLAN)\u3002<\/p>\n

3.ISL(Inter Switch Link)<\/p>\n

ISL\uff0c\u662fCisco\u4ea7\u54c1\u652f\u6301\u7684\u4e00\u79cd\u4e0eIEEE 802.1Q\u7c7b\u4f3c\u7684\u3001\u7528\u4e8e\u5728\u6c47\u805a\u94fe\u8def\u4e0a\u9644\u52a0VLAN\u4fe1\u606f\u7684\u534f\u8bae\u3002<\/p>\n

\u4f7f\u7528ISL\u540e\uff0c\u6bcf\u4e2a\u6570\u636e\u5e27\u5934\u90e8\u90fd\u4f1a\u88ab\u9644\u52a026\u5b57\u8282\u7684\u201cISL\u5305\u5934(ISL Header)\u201d\uff0c\u5e76\u4e14\u5728\u5e27\u5c3e\u5e26\u4e0a\u901a\u8fc7\u5bf9\u5305\u62ecISL\u5305\u5934\u5728\u5185\u7684\u6574\u4e2a\u6570\u636e\u5e27\u8fdb\u884c\u8ba1\u7b97\u540e\u5f97\u5230\u76844\u5b57\u8282CRC\u503c\u3002\u6362\u800c\u8a00\u4e4b\uff0c\u5c31\u662f\u603b\u5171\u589e\u52a0\u4e8630\u5b57\u8282\u7684\u4fe1\u606f\u3002<\/p>\n

\u5728\u4f7f\u7528ISL\u7684\u73af\u5883\u4e0b\uff0c\u5f53\u6570\u636e\u5e27\u79bb\u5f00\u6c47\u805a\u94fe\u8def\u65f6\uff0c\u53ea\u8981\u7b80\u5355\u5730\u53bb\u9664ISL\u5305\u5934\u548c\u65b0CRC\u5c31\u53ef\u4ee5\u4e86\u3002\u7531\u4e8e\u539f\u5148\u7684\u6570\u636e\u5e27\u53ca\u5176CRC\u90fd\u88ab\u5b8c\u6574\u4fdd\u7559\uff0c\u56e0\u6b64\u65e0\u9700\u91cd\u65b0\u8ba1\u7b97CRC\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

ISL\u6709\u5982\u7528ISL\u5305\u5934\u548c\u65b0CRC\u5c06\u539f\u6570\u636e\u5e27\u6574\u4e2a\u5305\u88f9\u8d77\u6765\uff0c\u56e0\u6b64\u4e5f\u88ab\u79f0\u4e3a\u201c\u5c01\u88c5\u578bVLAN\u201d(Encapsulated VLAN)\u3002<\/p>\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e0d\u8bba\u662fIEEE802.1Q\u7684\u201cTagging VLAN\u201d\uff0c\u8fd8\u662fISL\u7684\u201cEncapsulated VLAN\u201d\uff0c\u90fd\u4e0d\u662f\u5f88\u4e25\u5bc6\u7684\u79f0\u8c13\u3002\u4e0d\u540c\u7684\u4e66\u7c4d\u4e0e\u53c2\u8003\u8d44\u6599\u4e2d\uff0c\u4e0a\u8ff0\u8bcd\u8bed\u6709\u53ef\u80fd\u88ab\u6df7\u5408\u4f7f\u7528\uff0c\u56e0\u6b64\u9700\u8981\u5927\u5bb6\u5728\u5b66\u4e60\u65f6\u683c\u5916\u6ce8\u610f\u3002<\/p>\n

\u5e76\u4e14\u7531\u4e8eISL\u662fCisco\u72ec\u6709\u7684\u534f\u8bae\uff0c\u56e0\u6b64\u53ea\u80fd\u7528\u4e8eCisco\u7f51\u7edc\u8bbe\u5907\u4e4b\u95f4\u7684\u4e92\u8054\u3002<\/p>\n

VLAN\u95f4\u8def\u7531<\/span><\/p>\n

1.VLAN\u95f4\u8def\u7531\u7684\u5fc5\u8981\u6027<\/p>\n

\u6839\u636e\u76ee\u524d\u4e3a\u6b62\u5b66\u4e60\u7684\u77e5\u8bc6\uff0c\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u4e24\u53f0\u8ba1\u7b97\u673a\u5373\u4f7f\u8fde\u63a5\u5728\u540c\u4e00\u53f0\u4ea4\u6362\u673a\u4e0a\uff0c\u53ea\u8981\u6240\u5c5e\u7684VLAN\u4e0d\u540c\u5c31\u65e0\u6cd5\u76f4\u63a5\u901a\u4fe1\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u5c06\u8981\u5b66\u4e60\u7684\u5c31\u662f\u5982\u4f55\u5728\u4e0d\u540c\u7684VLAN\u95f4\u8fdb\u884c\u8def\u7531\uff0c\u4f7f\u5206\u5c5e\u4e0d\u540cVLAN\u7684\u4e3b\u673a\u80fd\u591f\u4e92\u76f8\u901a\u4fe1\u3002<\/p>\n

\u9996\u5148\uff0c\u5148\u6765\u590d\u4e60\u4e00\u4e0b\u4e3a\u4ec0\u4e48\u4e0d\u540cVLAN\u95f4\u4e0d\u901a\u8fc7\u8def\u7531\u5c31\u65e0\u6cd5\u901a\u4fe1\u3002\u5728LAN\u5185\u7684\u901a\u4fe1\uff0c\u5fc5\u987b\u5728\u6570\u636e\u5e27\u5934\u4e2d\u6307\u5b9a\u901a\u4fe1\u76ee\u6807\u7684MAC\u5730\u5740\u3002\u800c\u4e3a\u4e86\u83b7\u53d6MAC\u5730\u5740\uff0cTCP\/IP\u534f\u8bae\u4e0b\u4f7f\u7528\u7684\u662fARP\u3002ARP\u89e3\u6790MAC\u5730\u5740\u7684\u65b9\u6cd5\uff0c\u5219\u662f\u901a\u8fc7\u5e7f\u64ad\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u5e7f\u64ad\u62a5\u6587\u65e0\u6cd5\u5230\u8fbe\uff0c\u90a3\u4e48\u5c31\u65e0\u4ece\u89e3\u6790MAC\u5730\u5740\uff0c\u4ea6\u5373\u65e0\u6cd5\u76f4\u63a5\u901a\u4fe1\u3002<\/p>\n

\u8ba1\u7b97\u673a\u5206\u5c5e\u4e0d\u540c\u7684VLAN\uff0c\u4e5f\u5c31\u610f\u5473\u7740\u5206\u5c5e\u4e0d\u540c\u7684\u5e7f\u64ad\u57df\uff0c\u81ea\u7136\u6536\u4e0d\u5230\u5f7c\u6b64\u7684\u5e7f\u64ad\u62a5\u6587\u3002\u56e0\u6b64\uff0c\u5c5e\u4e8e\u4e0d\u540cVLAN\u7684\u8ba1\u7b97\u673a\u4e4b\u95f4\u65e0\u6cd5\u76f4\u63a5\u4e92\u76f8\u901a\u4fe1\u3002\u4e3a\u4e86\u80fd\u591f\u5728VLAN\u95f4\u901a\u4fe1\uff0c\u9700\u8981\u5229\u7528OSI\u53c2\u7167\u6a21\u578b\u4e2d\u66f4\u9ad8\u4e00\u5c42\u2014\u2014\u7f51\u7edc\u5c42\u7684\u4fe1\u606f(IP\u5730\u5740)\u6765\u8fdb\u884c\u8def\u7531\u3002\u5173\u4e8e\u8def\u7531\u7684\u5177\u4f53\u5185\u5bb9\uff0c\u4ee5\u540e\u6709\u673a\u4f1a\u518d\u8be6\u7ec6\u89e3\u8bf4\u5427\u3002<\/p>\n

\u8def\u7531\u529f\u80fd\uff0c\u4e00\u822c\u4e3b\u8981\u7531\u8def\u7531\u5668\u63d0\u4f9b\u3002\u4f46\u5728\u4eca\u5929\u7684\u5c40\u57df\u7f51\u91cc\uff0c\u6211\u4eec\u4e5f\u7ecf\u5e38\u5229\u7528\u5e26\u6709\u8def\u7531\u529f\u80fd\u7684\u4ea4\u6362\u673a\u2014\u2014\u4e09\u5c42\u4ea4\u6362\u673a(Layer 3 Switch)\u6765\u5b9e\u73b0\u3002\u63a5\u4e0b\u6765\u5c31\u8ba9\u6211\u4eec\u5206\u522b\u770b\u770b\u4f7f\u7528\u8def\u7531\u5668\u548c\u4e09\u5c42\u4ea4\u6362\u673a\u8fdb\u884cVLAN\u95f4\u8def\u7531\u65f6\u7684\u60c5\u51b5\u3002<\/p>\n

2.\u4f7f\u7528\u8def\u7531\u5668\u8fdb\u884cVLAN\u95f4\u8def\u7531<\/p>\n

\u5728\u4f7f\u7528\u8def\u7531\u5668\u8fdb\u884cVLAN\u95f4\u8def\u7531\u65f6\uff0c\u4e0e\u6784\u5efa\u6a2a\u8de8\u591a\u53f0\u4ea4\u6362\u673a\u7684VLAN\u65f6\u7684\u60c5\u51b5\u7c7b\u4f3c\uff0c\u6211\u4eec\u8fd8\u662f\u4f1a\u9047\u5230\u201c\u8be5\u5982\u4f55\u8fde\u63a5\u8def\u7531\u5668\u4e0e\u4ea4\u6362\u673a\u201d\u8fd9\u4e2a\u95ee\u9898\u3002\u8def\u7531\u5668\u548c\u4ea4\u6362\u673a\u7684\u63a5\u7ebf\u65b9\u5f0f\uff0c\u5927\u81f4\u6709\u4ee5\u4e0b\u4e24\u79cd\uff1a<\/p>\n

(1)\u5c06\u8def\u7531\u5668\u4e0e\u4ea4\u6362\u673a\u4e0a\u7684\u6bcf\u4e2aVLAN\u5206\u522b\u8fde\u63a5<\/p>\n

(2)\u4e0d\u8bbaVLAN\u6709\u591a\u5c11\u4e2a\uff0c\u8def\u7531\u5668\u4e0e\u4ea4\u6362\u673a\u90fd\u53ea\u7528\u4e00\u6761\u7f51\u7ebf\u8fde\u63a5<\/p>\n

\u6700\u5bb9\u6613\u60f3\u5230\u7684\uff0c\u5f53\u7136\u8fd8\u662f\u201c\u628a\u8def\u7531\u5668\u548c\u4ea4\u6362\u673a\u4ee5VLAN\u4e3a\u5355\u4f4d\u5206\u522b\u7528\u7f51\u7ebf\u8fde\u63a5\u201d\u4e86\u3002\u5c06\u4ea4\u6362\u673a\u4e0a\u7528\u4e8e\u548c\u8def\u7531\u5668\u4e92\u8054\u7684\u6bcf\u4e2a\u7aef\u53e3\u8bbe\u4e3a\u8bbf\u95ee\u94fe\u63a5(Access Link)\uff0c\u7136\u540e\u5206\u522b\u7528\u7f51\u7ebf\u4e0e\u8def\u7531\u5668\u4e0a\u7684\u72ec\u7acb\u7aef\u53e3\u4e92\u8054\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u4ea4\u6362\u673a\u4e0a\u67092\u4e2aVLAN\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u5728\u4ea4\u6362\u673a\u4e0a\u9884\u75592\u4e2a\u7aef\u53e3\u7528\u4e8e\u4e0e\u8def\u7531\u5668\u4e92\u8054;\u8def\u7531\u5668\u4e0a\u540c\u6837\u9700\u8981\u67092\u4e2a\u7aef\u53e3;\u4e24\u8005\u4e4b\u95f4\u75282\u6761\u7f51\u7ebf\u5206\u522b\u8fde\u63a5\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u5982\u679c\u91c7\u7528\u8fd9\u4e2a\u529e\u6cd5\uff0c\u5927\u5bb6\u5e94\u8be5\u4e0d\u96be\u60f3\u8c61\u5b83\u7684\u6269\u5c55\u6027\u5f88\u6210\u95ee\u9898\u3002\u6bcf\u589e\u52a0\u4e00\u4e2a\u65b0\u7684VLAN\uff0c\u90fd\u9700\u8981\u6d88\u8017\u8def\u7531\u5668\u7684\u7aef\u53e3\u548c\u4ea4\u6362\u673a\u4e0a\u7684\u8bbf\u95ee\u94fe\u63a5\uff0c\u800c\u4e14\u8fd8\u9700\u8981\u91cd\u65b0\u5e03\u8bbe\u4e00\u6761\u7f51\u7ebf\u3002\u800c\u8def\u7531\u5668\uff0c\u901a\u5e38\u4e0d\u4f1a\u5e26\u6709\u592a\u591aLAN\u63a5\u53e3\u7684\u3002\u65b0\u5efaVLAN\u65f6\uff0c\u4e3a\u4e86\u5bf9\u5e94\u589e\u52a0\u7684VLAN\u6240\u9700\u7684\u7aef\u53e3\uff0c\u5c31\u5fc5\u987b\u5c06\u8def\u7531\u5668\u5347\u7ea7\u6210\u5e26\u6709\u591a\u4e2aLAN\u63a5\u53e3\u7684\u9ad8\u7aef\u4ea7\u54c1\uff0c\u8fd9\u90e8\u5206\u6210\u672c\u3001\u8fd8\u6709\u91cd\u65b0\u5e03\u7ebf\u6240\u5e26\u6765\u7684\u5f00\u9500\uff0c\u90fd\u4f7f\u5f97\u8fd9\u79cd\u63a5\u7ebf\u6cd5\u6210\u4e3a\u4e00\u79cd\u4e0d\u53d7\u6b22\u8fce\u7684\u529e\u6cd5\u3002<\/p>\n

\u90a3\u4e48\uff0c\u7b2c\u4e8c\u79cd\u529e\u6cd5\u201c\u4e0d\u8bbaVLAN\u6570\u76ee\u591a\u5c11\uff0c\u90fd\u53ea\u7528\u4e00\u6761\u7f51\u7ebf\u8fde\u63a5\u8def\u7531\u5668\u4e0e\u4ea4\u6362\u673a\u201d\u5462?\u5f53\u4f7f\u7528\u4e00\u6761\u7f51\u7ebf\u8fde\u63a5\u8def\u7531\u5668\u4e0e\u4ea4\u6362\u673a\u3001\u8fdb\u884cVLAN\u95f4\u8def\u7531\u65f6\uff0c\u9700\u8981\u7528\u5230\u6c47\u805a\u94fe\u63a5\u3002<\/p>\n

\u5177\u4f53\u5b9e\u73b0\u8fc7\u7a0b\u4e3a\uff1a\u9996\u5148\u5c06\u7528\u4e8e\u8fde\u63a5\u8def\u7531\u5668\u7684\u4ea4\u6362\u673a\u7aef\u53e3\u8bbe\u4e3a\u6c47\u805a\u94fe\u63a5(Trunk Link)\uff0c\u800c\u8def\u7531\u5668\u4e0a\u7684\u7aef\u53e3\u4e5f\u5fc5\u987b\u652f\u6301\u6c47\u805a\u94fe\u8def\u3002\u53cc\u65b9\u7528\u4e8e\u6c47\u805a\u94fe\u8def\u7684\u534f\u8bae\u81ea\u7136\u4e5f\u5fc5\u987b\u76f8\u540c\u3002\u63a5\u7740\u5728\u8def\u7531\u5668\u4e0a\u5b9a\u4e49\u5bf9\u5e94\u5404\u4e2aVLAN\u7684\u201c\u5b50\u63a5\u53e3\u201d(Sub Interface)\u3002\u5c3d\u7ba1\u5b9e\u9645\u4e0e\u4ea4\u6362\u673a\u8fde\u63a5\u7684\u7269\u7406\u7aef\u53e3\u53ea\u6709\u4e00\u4e2a\uff0c\u4f46\u5728\u7406\u8bba\u4e0a\u6211\u4eec\u53ef\u4ee5\u628a\u5b83\u5206\u5272\u4e3a\u591a\u4e2a\u865a\u62df\u7aef\u53e3\u3002<\/p>\n

VLAN\u5c06\u4ea4\u6362\u673a\u4ece\u903b\u8f91\u4e0a\u5206\u5272\u6210\u4e86\u591a\u53f0\uff0c\u56e0\u800c\u7528\u4e8eVLAN\u95f4\u8def\u7531\u7684\u8def\u7531\u5668\uff0c\u4e5f\u5fc5\u987b\u62e5\u6709\u5206\u522b\u5bf9\u5e94\u5404\u4e2aVLAN\u7684\u865a\u62df\u63a5\u53e3\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u91c7\u7528\u8fd9\u79cd\u65b9\u6cd5\u7684\u8bdd\uff0c\u5373\u4f7f\u4e4b\u540e\u5728\u4ea4\u6362\u673a\u4e0a\u65b0\u5efaVLAN\uff0c\u4ecd\u53ea\u9700\u8981\u4e00\u6761\u7f51\u7ebf\u8fde\u63a5\u4ea4\u6362\u673a\u548c\u8def\u7531\u5668\u3002\u7528\u6237\u53ea\u9700\u8981\u5728\u8def\u7531\u5668\u4e0a\u65b0\u8bbe\u4e00\u4e2a\u5bf9\u5e94\u65b0VLAN\u7684\u5b50\u63a5\u53e3\u5c31\u53ef\u4ee5\u4e86\u3002\u4e0e\u524d\u9762\u7684\u65b9\u6cd5\u76f8\u6bd4\uff0c\u6269\u5c55\u6027\u8981\u5f3a\u5f97\u591a\uff0c\u4e5f\u4e0d\u7528\u62c5\u5fc3\u9700\u8981\u5347\u7ea7LAN\u63a5\u53e3\u6570\u4e0d\u8db3\u7684\u8def\u7531\u5668\u6216\u662f\u91cd\u65b0\u5e03\u7ebf\u3002<\/p>\n

3.\u540c\u4e00VLAN\u5185\u7684\u901a\u4fe1<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u7ee7\u7eed\u5b66\u4e60\u4f7f\u7528\u6c47\u805a\u94fe\u8def\u8fde\u63a5\u4ea4\u6362\u673a\u4e0e\u8def\u7531\u5668\u65f6\uff0cVLAN\u95f4\u8def\u7531\u662f\u5982\u4f55\u8fdb\u884c\u7684\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u4e3a\u5404\u53f0\u8ba1\u7b97\u673a\u4ee5\u53ca\u8def\u7531\u5668\u7684\u5b50\u63a5\u53e3\u8bbe\u5b9aIP\u5730\u5740\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u7ea2\u8272VLAN(VLAN ID=1)\u7684\u7f51\u7edc\u5730\u5740\u4e3a192.168.1.0\/24\uff0c\u84dd\u8272VLAN(VLAN ID=2)\u7684\u7f51\u7edc\u5730\u5740\u4e3a192.168.2.0\/24\u3002\u5404\u8ba1\u7b97\u673a\u7684MAC\u5730\u5740\u5206\u522b\u4e3aA\/B\/C\/D\uff0c\u8def\u7531\u5668\u6c47\u805a\u94fe\u63a5\u7aef\u53e3\u7684MAC\u5730\u5740\u4e3aR\u3002\u4ea4\u6362\u673a\u901a\u8fc7\u5bf9\u5404\u7aef\u53e3\u6240\u8fde\u8ba1\u7b97\u673aMAC\u5730\u5740\u7684\u5b66\u4e60\uff0c\u751f\u6210\u5982\u4e0b\u7684MAC\u5730\u5740\u5217\u8868\u3002<\/p>\n

\u9996\u5148\u8003\u8651\u8ba1\u7b97\u673aA\u4e0e\u540c\u4e00VLAN\u5185\u7684\u8ba1\u7b97\u673aB\u4e4b\u95f4\u901a\u4fe1\u65f6\u7684\u60c5\u5f62\u3002<\/p>\n

\u8ba1\u7b97\u673aA\u53d1\u51faARP\u8bf7\u6c42\u4fe1\u606f\uff0c\u8bf7\u6c42\u89e3\u6790B\u7684MAC\u5730\u5740\u3002\u4ea4\u6362\u673a\u6536\u5230\u6570\u636e\u5e27\u540e\uff0c\u68c0\u7d22MAC\u5730\u5740\u5217\u8868\u4e2d\u4e0e\u6536\u4fe1\u7aef\u53e3\u540c\u5c5e\u4e00\u4e2aVLAN\u7684\u8868\u9879\u3002\u7ed3\u679c\u53d1\u73b0\uff0c\u8ba1\u7b97\u673aB\u8fde\u63a5\u5728\u7aef\u53e32\u4e0a\uff0c\u4e8e\u662f\u4ea4\u6362\u673a\u5c06\u6570\u636e\u5e27\u8f6c\u53d1\u7ed9\u7aef\u53e32\uff0c\u6700\u7ec8\u8ba1\u7b97\u673aB\u6536\u5230\u8be5\u5e27\u3002\u6536\u53d1\u4fe1\u53cc\u65b9\u540c\u5c5e\u4e00\u4e2aVLAN\u4e4b\u5185\u7684\u901a\u4fe1\uff0c\u4e00\u5207\u5904\u7406\u5747\u5728\u4ea4\u6362\u673a\u5185\u5b8c\u6210\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

4.\u4e0d\u540cVLAN\u95f4\u7684\u901a\u4fe1<\/p>\n

\u63a5\u4e0b\u6765\u662f\u8fd9\u4e00\u8bb2\u7684\u6838\u5fc3\u5185\u5bb9\uff0c\u4e0d\u540cVLAN\u95f4\u7684\u901a\u4fe1\u3002\u8ba9\u6211\u4eec\u6765\u8003\u8651\u4e00\u4e0b\u8ba1\u7b97\u673aA\u4e0e\u8ba1\u7b97\u673aC\u4e4b\u95f4\u901a\u4fe1\u65f6\u7684\u60c5\u51b5\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

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\u5f97\u5230\u8def\u7531\u5668\u7684MAC\u5730\u5740R\u540e\uff0c\u63a5\u4e0b\u6765\u5c31\u662f\u6309\u56fe\u4e2d\u6240\u793a\u7684\u6b65\u9aa4\u53d1\u9001\u5f80C\u53bb\u7684\u6570\u636e\u5e27\u3002\u2460\u7684\u6570\u636e\u5e27\u4e2d\uff0c\u76ee\u6807MAC\u5730\u5740\u662f\u8def\u7531\u5668\u7684\u5730\u5740R\u3001\u4f46\u5185\u542b\u7684\u76ee\u6807IP\u5730\u5740\u4ecd\u662f\u6700\u7ec8\u8981\u901a\u4fe1\u7684\u5bf9\u8c61C\u7684\u5730\u5740\u3002\u8fd9\u4e00\u90e8\u5206\u7684\u5185\u5bb9\uff0c\u6d89\u53ca\u5230\u5c40\u57df\u7f51\u5185\u7ecf\u8fc7\u8def\u7531\u5668\u8f6c\u53d1\u65f6\u7684\u901a\u4fe1\u6b65\u9aa4\uff0c\u6709\u673a\u4f1a\u518d\u8be6\u7ec6\u89e3\u8bf4\u5427\u3002<\/p>\n

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\u4ea4\u6362\u673a\u6536\u5230\u2462\u7684\u6570\u636e\u5e27\u540e\uff0c\u6839\u636eVLAN\u6807\u8bc6\u4fe1\u606f\u4eceMAC\u5730\u5740\u5217\u8868\u4e2d\u68c0\u7d22\u5c5e\u4e8e\u84dd\u8272VLAN\u7684\u8868\u9879\u3002\u7531\u4e8e\u901a\u4fe1\u76ee\u6807\u2014\u2014\u8ba1\u7b97\u673aC\u8fde\u63a5\u5728\u7aef\u53e33\u4e0a\u3001\u4e14\u7aef\u53e33\u4e3a\u666e\u901a\u7684\u8bbf\u95ee\u94fe\u63a5\uff0c\u56e0\u6b64\u4ea4\u6362\u673a\u4f1a\u5c06\u6570\u636e\u5e27\u53bb\u9664VLAN\u8bc6\u522b\u4fe1\u606f\u540e(\u6570\u636e\u5e27\u2463)\u8f6c\u53d1\u7ed9\u7aef\u53e33\uff0c\u6700\u7ec8\u8ba1\u7b97\u673aC\u624d\u80fd\u6210\u529f\u5730\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u5e27\u3002<\/p>\n

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\u4e09\u5c42\u4ea4\u6362\u673a<\/span><\/p>\n

1.\u4f7f\u7528\u8def\u7531\u5668\u8fdb\u884cVLAN\u95f4\u8def\u7531\u65f6\u7684\u95ee\u9898<\/p>\n

\u73b0\u5728\uff0c\u6211\u4eec\u77e5\u9053\u53ea\u8981\u80fd\u63d0\u4f9bVLAN\u95f4\u8def\u7531\uff0c\u5c31\u80fd\u591f\u4f7f\u5206\u5c5e\u4e0d\u540cVLAN\u7684\u8ba1\u7b97\u673a\u4e92\u76f8\u901a\u4fe1\u3002\u4f46\u662f\uff0c\u5982\u679c\u4f7f\u7528\u8def\u7531\u5668\u8fdb\u884cVLAN\u95f4\u8def\u7531\u7684\u8bdd\uff0c\u968f\u7740VLAN\u4e4b\u95f4\u6d41\u91cf\u7684\u4e0d\u65ad\u589e\u52a0\uff0c\u5f88\u53ef\u80fd\u5bfc\u81f4\u8def\u7531\u5668\u6210\u4e3a\u6574\u4e2a\u7f51\u7edc\u7684\u74f6\u9888\u3002<\/p>\n

\u4ea4\u6362\u673a\u4f7f\u7528\u88ab\u79f0\u4e3aASIC(ApplicationSpecified Integrated Circuit)\u7684\u4e13\u7528\u786c\u4ef6\u82af\u7247\u5904\u7406\u6570\u636e\u5e27\u7684\u4ea4\u6362\u64cd\u4f5c\uff0c\u5728\u5f88\u591a\u673a\u578b\u4e0a\u90fd\u80fd\u5b9e\u73b0\u4ee5\u7f06\u7ebf\u901f\u5ea6(Wired Speed)\u4ea4\u6362\u3002\u800c\u8def\u7531\u5668\uff0c\u5219\u57fa\u672c\u4e0a\u662f\u57fa\u4e8e\u8f6f\u4ef6\u5904\u7406\u7684\u3002\u5373\u4f7f\u4ee5\u7f06\u7ebf\u901f\u5ea6\u63a5\u6536\u5230\u6570\u636e\u5305\uff0c\u4e5f\u65e0\u6cd5\u5728\u4e0d\u9650\u901f\u7684\u6761\u4ef6\u4e0b\u8f6c\u53d1\u51fa\u53bb\uff0c\u56e0\u6b64\u4f1a\u6210\u4e3a\u901f\u5ea6\u74f6\u9888\u3002\u5c31VLAN\u95f4\u8def\u7531\u800c\u8a00\uff0c\u6d41\u91cf\u4f1a\u96c6\u4e2d\u5230\u8def\u7531\u5668\u548c\u4ea4\u6362\u673a\u4e92\u8054\u7684\u6c47\u805a\u94fe\u8def\u90e8\u5206\uff0c\u8fd9\u4e00\u90e8\u5206\u5c24\u5176\u7279\u522b\u5bb9\u6613\u6210\u4e3a\u901f\u5ea6\u74f6\u9888\u3002\u5e76\u4e14\u4ece\u786c\u4ef6\u4e0a\u770b\uff0c\u7531\u4e8e\u9700\u8981\u5206\u522b\u8bbe\u7f6e\u8def\u7531\u5668\u548c\u4ea4\u6362\u673a\uff0c\u5728\u4e00\u4e9b\u7a7a\u95f4\u72ed\u5c0f\u7684\u73af\u5883\u91cc\u53ef\u80fd\u8fde\u8bbe\u7f6e\u7684\u573a\u6240\u90fd\u6210\u95ee\u9898\u3002<\/p>\n

2.\u4e09\u5c42\u4ea4\u6362\u673a(Layer 3 Switch)<\/p>\n

\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0c\u4e09\u5c42\u4ea4\u6362\u673a\u5e94\u8fd0\u800c\u751f<\/a>\u3002\u4e09\u5c42\u4ea4\u6362\u673a\uff0c\u672c\u8d28\u4e0a\u5c31\u662f\u201c\u5e26\u6709\u8def\u7531\u529f\u80fd\u7684(\u4e8c\u5c42)\u4ea4\u6362\u673a\u201d\u3002\u8def\u7531\u5c5e\u4e8eOSI\u53c2\u7167\u6a21\u578b\u4e2d\u7b2c\u4e09\u5c42\u7f51\u7edc\u5c42\u7684\u529f\u80fd\uff0c\u56e0\u6b64\u5e26\u6709\u7b2c\u4e09\u5c42\u8def\u7531\u529f\u80fd\u7684\u4ea4\u6362\u673a\u624d\u88ab\u79f0\u4e3a\u201c\u4e09\u5c42\u4ea4\u6362\u673a\u201d\u3002<\/p>\n

\u5173\u4e8e\u4e09\u5c42\u4ea4\u6362\u673a\u7684\u5185\u90e8\u7ed3\u6784\uff0c\u53ef\u4ee5\u53c2\u7167\u4e0b\u9762\u7684\u7b80\u56fe\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u5728\u4e00\u53f0\u672c\u4f53\u5185\uff0c\u5206\u522b\u8bbe\u7f6e\u4e86\u4ea4\u6362\u673a\u6a21\u5757\u548c\u8def\u7531\u5668\u6a21\u5757;\u800c\u5185\u7f6e\u7684\u8def\u7531\u6a21\u5757\u4e0e\u4ea4\u6362\u6a21\u5757\u76f8\u540c\uff0c\u4f7f\u7528ASIC\u786c\u4ef6\u5904\u7406\u8def\u7531\u3002\u56e0\u6b64\uff0c\u4e0e\u4f20\u7edf\u7684\u8def\u7531\u5668\u76f8\u6bd4\uff0c\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u901f\u8def\u7531\u3002\u5e76\u4e14\uff0c\u8def\u7531\u4e0e\u4ea4\u6362\u6a21\u5757\u662f\u6c47\u805a\u94fe\u63a5\u7684\uff0c\u7531\u4e8e\u662f\u5185\u90e8\u8fde\u63a5\uff0c\u53ef\u4ee5\u786e\u4fdd\u76f8\u5f53\u5927\u7684\u5e26\u5bbd\u3002<\/p>\n

\u25cf \u4f7f\u7528\u4e09\u5c42\u4ea4\u6362\u673a\u8fdb\u884cVLAN\u95f4\u8def\u7531(VLAN\u5185\u901a\u4fe1)<\/p>\n

\u5728\u4e09\u5c42\u4ea4\u6362\u673a\u5185\u90e8\u6570\u636e\u7a76\u7adf\u662f\u600e\u6837\u4f20\u64ad\u7684\u5462?\u57fa\u672c\u4e0a\uff0c\u5b83\u548c\u4f7f\u7528\u6c47\u805a\u94fe\u8def\u8fde\u63a5\u8def\u7531\u5668\u4e0e\u4ea4\u6362\u673a\u65f6\u7684\u60c5\u5f62\u76f8\u540c\u3002<\/p>\n

\u5047\u8bbe\u6709\u5982\u4e0b\u56fe\u6240\u793a\u76844\u53f0\u8ba1\u7b97\u673a\u4e0e\u4e09\u5c42\u4ea4\u6362\u673a\u4e92\u8054\u3002\u5f53\u4f7f\u7528\u8def\u7531\u5668\u8fde\u63a5\u65f6\uff0c\u4e00\u822c\u9700\u8981\u5728LAN\u63a5\u53e3\u4e0a\u8bbe\u7f6e\u5bf9\u5e94\u5404VLAN\u7684\u5b50\u63a5\u53e3;\u800c\u4e09\u5c42\u4ea4\u6362\u673a\u5219\u662f\u5728\u5185\u90e8\u751f\u6210\u201cVLAN\u63a5\u53e3\u201d(VLAN Interface)\u3002VLAN\u63a5\u53e3\uff0c\u662f\u7528\u4e8e\u5404VLAN\u6536\u53d1\u6570\u636e\u7684\u63a5\u53e3\u3002(\u6ce8\uff1a\u5728Cisco\u7684Catalyst\u7cfb\u5217\u4ea4\u6362\u673a\u4e0a\uff0cVLAN Interface\u88ab\u79f0\u4e3aSVI\u2014\u2014Switched Virtual Interface)<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u4e3a\u4e86\u4e0e\u4f7f\u7528\u8def\u7531\u5668\u8fdb\u884cVLAN\u95f4\u8def\u7531\u5bf9\u6bd4\uff0c\u8ba9\u6211\u4eec\u540c\u6837\u6765\u8003\u8651\u4e00\u4e0b\u8ba1\u7b97\u673aA\u4e0e\u8ba1\u7b97\u673aB\u4e4b\u95f4\u901a\u4fe1\u65f6\u7684\u60c5\u51b5\u3002\u9996\u5148\u662f\u76ee\u6807\u5730\u5740\u4e3aB\u7684\u6570\u636e\u5e27\u88ab\u53d1\u5230\u4ea4\u6362\u673a;\u901a\u8fc7\u68c0\u7d22\u540c\u4e00VLAN\u7684MAC\u5730\u5740\u5217\u8868\u53d1\u73b0\u8ba1\u7b97\u673aB\u8fde\u5728\u4ea4\u6362\u673a\u7684\u7aef\u53e32\u4e0a;\u56e0\u6b64\u5c06\u6570\u636e\u5e27\u8f6c\u53d1\u7ed9\u7aef\u53e32\u3002<\/p>\n

\u25cf \u4f7f\u7528\u4e09\u5c42\u4ea4\u6362\u673a\u8fdb\u884cVLAN\u95f4\u8def\u7531(VLAN\u95f4\u901a\u4fe1)<\/p>\n

\u63a5\u4e0b\u6765\u8bbe\u60f3\u4e00\u4e0b\u8ba1\u7b97\u673aA\u4e0e\u8ba1\u7b97\u673aC\u95f4\u901a\u4fe1\u65f6\u7684\u60c5\u5f62\u3002\u9488\u5bf9\u76ee\u6807IP\u5730\u5740\uff0c\u8ba1\u7b97\u673aA\u53ef\u4ee5\u5224\u65ad\u51fa\u901a\u4fe1\u5bf9\u8c61\u4e0d\u5c5e\u4e8e\u540c\u4e00\u4e2a\u7f51\u7edc\uff0c\u56e0\u6b64\u5411\u9ed8\u8ba4\u7f51\u5173\u53d1\u9001\u6570\u636e(Frame 1)\u3002<\/p>\n

\u4ea4\u6362\u673a\u901a\u8fc7\u68c0\u7d22MAC\u5730\u5740\u5217\u8868\u540e\uff0c\u7ecf\u7531\u5185\u90e8\u6c47\u805a\u94fe\u63a5\uff0c\u5c06\u6570\u636e\u5e27\u8f6c\u53d1\u7ed9\u8def\u7531\u6a21\u5757\u3002\u5728\u901a\u8fc7\u5185\u90e8\u6c47\u805a\u94fe\u8def\u65f6\uff0c\u6570\u636e\u5e27\u88ab\u9644\u52a0\u4e86\u5c5e\u4e8e\u7ea2\u8272VLAN\u7684VLAN\u8bc6\u522b\u4fe1\u606f(Frame 2)\u3002<\/p>\n

\u8def\u7531\u6a21\u5757\u5728\u6536\u5230\u6570\u636e\u5e27\u65f6\uff0c\u5148\u7531\u6570\u636e\u5e27\u9644\u52a0\u7684VLAN\u8bc6\u522b\u4fe1\u606f\u5206\u8fa8\u51fa\u5b83\u5c5e\u4e8e\u7ea2\u8272VLAN\uff0c\u636e\u6b64\u5224\u65ad\u7531\u7ea2\u8272VLAN\u63a5\u53e3\u8d1f\u8d23\u63a5\u6536\u5e76\u8fdb\u884c\u8def\u7531\u5904\u7406\u3002\u56e0\u4e3a\u76ee\u6807\u7f51\u7edc192.168.2.0\/24\u662f\u76f4\u8fde\u8def\u7531\u5668\u7684\u7f51\u7edc\u3001\u4e14\u5bf9\u5e94\u84dd\u8272VLAN;\u56e0\u6b64\uff0c\u63a5\u4e0b\u6765\u5c31\u4f1a\u4ece\u84dd\u8272VLAN\u63a5\u53e3\u7ecf\u7531\u5185\u90e8\u6c47\u805a\u94fe\u8def\u8f6c\u53d1\u56de\u4ea4\u6362\u6a21\u5757\u3002\u5728\u901a\u8fc7\u6c47\u805a\u94fe\u8def\u65f6\uff0c\u8fd9\u6b21\u6570\u636e\u5e27\u88ab\u9644\u52a0\u4e0a\u5c5e\u4e8e\u84dd\u8272VLAN\u7684\u8bc6\u522b\u4fe1\u606f(Frame 3)\u3002<\/p>\n

\u4ea4\u6362\u673a\u6536\u5230\u8fd9\u4e2a\u5e27\u540e\uff0c\u68c0\u7d22\u84dd\u8272VLAN\u7684MAC\u5730\u5740\u5217\u8868\uff0c\u786e\u8ba4\u9700\u8981\u5c06\u5b83\u8f6c\u53d1\u7ed9\u7aef\u53e33\u3002\u7531\u4e8e\u7aef\u53e33\u662f\u901a\u5e38\u7684\u8bbf\u95ee\u94fe\u63a5\uff0c\u56e0\u6b64\u8f6c\u53d1\u524d\u4f1a\u5148\u5c06VLAN\u8bc6\u522b\u4fe1\u606f\u53bb\u9664(Frame 4)\u3002\u6700\u7ec8\uff0c\u8ba1\u7b97\u673aC\u6210\u529f\u5730\u6536\u5230\u4ea4\u6362\u673a\u8f6c\u53d1\u6765\u7684\u6570\u636e\u5e27\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u6574\u4f53\u7684\u6d41\u7a0b\uff0c\u4e0e\u4f7f\u7528\u5916\u90e8\u8def\u7531\u5668\u65f6\u7684\u60c5\u51b5\u5341\u5206\u76f8\u4f3c\u2014\u2014\u90fd\u9700\u8981\u7ecf\u8fc7\u201c\u53d1\u9001\u65b9\u2192\u4ea4\u6362\u6a21\u5757\u2192\u8def\u7531\u6a21\u5757\u2192\u4ea4\u6362\u6a21\u5757\u2192\u63a5\u6536\u65b9\u201d\u3002<\/p>\n

\u52a0\u901fVLAN\u95f4\u901a\u4fe1\u7684\u624b\u6bb5<\/span><\/p>\n

1.\u6d41(Flow)<\/p>\n

\u6839\u636e\u5230\u6b64\u4e3a\u6b62\u7684\u5b66\u4e60\uff0c\u6211\u4eec\u5df2\u7ecf\u77e5\u9053VLAN\u95f4\u8def\u7531\uff0c\u5fc5\u987b\u7ecf\u8fc7\u5916\u90e8\u7684\u8def\u7531\u5668\u6216\u662f\u4e09\u5c42\u4ea4\u6362\u673a\u7684\u5185\u7f6e\u8def\u7531\u6a21\u5757\u3002\u4f46\u662f\uff0c\u6709\u65f6\u5e76\u4e0d\u662f\u6240\u6709\u7684\u6570\u636e\u90fd\u9700\u8981\u7ecf\u8fc7\u8def\u7531\u5668(\u6216\u8def\u7531\u6a21\u5757)\u3002<\/p>\n

\u4f8b\u5982\uff0c\u4f7f\u7528FTP(File Transfer Protocol)\u4f20\u8f93\u5bb9\u91cf\u4e3a\u6570MB\u4ee5\u4e0a\u7684\u8f83\u5927\u7684\u6587\u4ef6\u65f6\uff0c\u7531\u4e8eMTU\u7684\u9650\u5236\uff0cIP\u534f\u8bae\u4f1a\u5c06\u6570\u636e\u5206\u5272\u6210\u5c0f\u5757\u540e\u4f20\u8f93\u3001\u5e76\u5728\u63a5\u6536\u65b9\u91cd\u65b0\u7ec4\u5408\u3002\u8fd9\u4e9b\u88ab\u5206\u5272\u7684\u6570\u636e\uff0c\u201c\u53d1\u9001\u7684\u76ee\u6807\u201d\u662f\u5b8c\u5168\u76f8\u540c\u7684\u3002\u53d1\u9001\u76ee\u6807\u76f8\u540c\uff0c\u4e5f\u5c31\u610f\u5473\u7740\u540c\u6837\u7684\u76ee\u6807IP\u5730\u5740\u3001\u76ee\u6807\u7aef\u53e3\u53f7(\u6ce8\uff1a\u7279\u522b\u5f3a\u8c03\u4e00\u4e0b\uff0c\u8fd9\u91cc\u6307\u7684\u662fTCP\/UDP\u7aef\u53e3)\u3002\u81ea\u7136\uff0c\u6e90IP\u5730\u5740\u3001\u6e90\u7aef\u53e3\u53f7\u4e5f\u5e94\u8be5\u76f8\u540c\u3002\u8fd9\u6837\u4e00\u8fde\u4e32\u7684\u6570\u636e\u6d41\u88ab\u79f0\u4e3a\u201c\u6d41\u201d(Flow)\u3002<\/p>\n

\u53ea\u8981\u5c06\u6d41\u6700\u521d\u7684\u6570\u636e\u6b63\u786e\u5730\u8def\u7531\u4ee5\u540e\uff0c\u540e\u7ee7\u7684\u6570\u636e\u7406\u5e94\u4e5f\u4f1a\u88ab\u540c\u6837\u5730\u8def\u7531\u3002<\/p>\n

\u636e\u6b64\uff0c\u540e\u7ee7\u7684\u6570\u636e\u4e0d\u518d\u9700\u8981\u8def\u7531\u5668\u8fdb\u884c\u8def\u7531\u5904\u7406;\u901a\u8fc7\u7701\u7565\u53cd\u590d\u8fdb\u884c\u7684\u8def\u7531\u64cd\u4f5c\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8VLAN\u95f4\u8def\u7531\u7684\u901f\u5ea6\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

2.\u52a0\u901fVLAN\u95f4\u8def\u7531\u7684\u673a\u5236<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u5177\u4f53\u8003\u8651\u4e00\u4e0b\u8be5\u5982\u4f55\u4f7f\u7528\u4e09\u5c42\u4ea4\u6362\u673a\u8fdb\u884c\u9ad8\u901fVLAN\u95f4\u8def\u7531\u3002<\/p>\n

\u9996\u5148\uff0c\u6574\u4e2a\u6d41\u7684\u7b2c\u4e00\u5757\u6570\u636e\uff0c\u7167\u5e38\u7531\u4ea4\u6362\u673a\u8f6c\u53d1\u2192\u8def\u7531\u5668\u8def\u7531\u2192\u518d\u6b21\u7531\u4ea4\u6362\u673a\u8f6c\u53d1\u5230\u76ee\u6807\u6240\u8fde\u7aef\u53e3\u3002\u8fd9\u65f6\uff0c\u5c06\u7b2c\u4e00\u5757\u6570\u636e\u8def\u7531\u7684\u7ed3\u679c\u8bb0\u5f55\u5230\u7f13\u5b58\u91cc\u4fdd\u5b58\u4e0b\u6765\u3002\u9700\u8981\u8bb0\u5f55\u7684\u4fe1\u606f\u6709\uff1a<\/p>\n

(1)\u76ee\u6807IP\u5730\u5740<\/p>\n

(2)\u6e90IP\u5730\u5740<\/p>\n

(3)\u76ee\u6807TCP\/UDP\u7aef\u53e3\u53f7<\/p>\n

(4)\u6e90TCP\/UDP\u7aef\u53e3\u53f7<\/p>\n

(5)\u63a5\u6536\u7aef\u53e3\u53f7(\u4ea4\u6362\u673a)<\/p>\n

(6)\u8f6c\u53d1\u7aef\u53e3\u53f7(\u4ea4\u6362\u673a)<\/p>\n

(7)\u8f6c\u53d1\u76ee\u6807MAC\u5730\u5740<\/p>\n

\u7b49\u7b49\u3002<\/p>\n

\u540c\u4e00\u4e2a\u6d41\u7684\u7b2c\u4e8c\u5757\u4ee5\u540e\u7684\u6570\u636e\u5230\u8fbe\u4ea4\u6362\u673a\u540e\uff0c\u76f4\u63a5\u901a\u8fc7\u67e5\u8be2\u5148\u524d\u4fdd\u5b58\u5728\u7f13\u5b58\u4e2d\u7684\u4fe1\u606f\u67e5\u51fa\u201c\u8f6c\u53d1\u7aef\u53e3\u53f7\u201d\u540e\u5c31\u53ef\u4ee5\u8f6c\u53d1\u7ed9\u76ee\u6807\u6240\u8fde\u7aef\u53e3\u4e86\u3002<\/p>\n

\u8fd9\u6837\u4e00\u6765\uff0c\u5c31\u4e0d\u9700\u8981\u518d\u4e00\u6b21\u6b21\u7ecf\u7531\u5185\u90e8\u8def\u7531\u6a21\u5757\u4e2d\u7ee7\uff0c\u800c\u4ec5\u51ed\u4ea4\u6362\u673a\u5185\u90e8\u7684\u7f13\u5b58\u4fe1\u606f\u5c31\u8db3\u4ee5\u5224\u65ad\u5e94\u8be5\u8f6c\u53d1\u7684\u7aef\u53e3\u3002<\/p>\n

\u8fd9\u65f6\uff0c\u4ea4\u6362\u673a\u4f1a\u5bf9\u6570\u636e\u5e27\u8fdb\u884c\u7531\u8def\u7531\u5668\u4e2d\u7ee7\u65f6\u76f8\u4f3c\u7684\u5904\u7406\uff0c\u4f8b\u5982\u6539\u5199MAC\u5730\u5740\u3001IP\u5305\u5934\u4e2d\u7684TTL\u548cCheck Sum\u6821\u9a8c\u7801\u4fe1\u606f\u7b49\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u901a\u8fc7\u5728\u4ea4\u6362\u673a\u4e0a\u7f13\u5b58\u8def\u7531\u7ed3\u679c\uff0c\u5b9e\u73b0\u4e86\u4ee5\u7f06\u7ebf\u901f\u5ea6(Wired Speed)\u63a5\u6536\u53d1\u9001\u65b9\u4f20\u8f93\u6765\u6570\u636e\u7684\u6570\u636e\u3001\u5e76\u4e14\u80fd\u591f\u5168\u901f\u8def\u7531\u3001\u8f6c\u53d1\u7ed9\u63a5\u6536\u65b9\u3002<\/p>\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7c7b\u4f3c\u7684\u52a0\u901fVLAN\u95f4\u8def\u7531\u7684\u624b\u6cd5\u591a\u7531\u5404\u5382\u5546\u72ec\u6709\u7684\u6280\u672f\u6240\u5b9e\u73b0\uff0c\u5e76\u4e14\u8be5\u529f\u80fd\u7684\u79f0\u8c13\u4e5f\u56e0\u5382\u5546\u800c\u5f02\u3002\u4f8b\u5982\uff0c\u5728Cisco\u7684Catalyst\u7cfb\u5217\u4ea4\u6362\u673a\u4e0a\uff0c\u8fd9\u79cd\u529f\u80fd\u88ab\u79f0\u4e3a\u201c\u591a\u5c42\u4ea4\u6362\u201d(Multi Layer Switching)\u3002\u53e6\u5916\uff0c\u9664\u4e86\u4e09\u5c42\u4ea4\u6362\u673a\u7684\u5185\u90e8\u8def\u7531\u6a21\u5757\uff0c\u5916\u90e8\u8def\u7531\u5668\u4e2d\u7684\u67d0\u4e9b\u673a\u578b\u4e5f\u652f\u6301\u7c7b\u4f3c\u7684\u9ad8\u901fVLAN\u95f4\u8def\u7531\u673a\u5236\u3002<\/p>\n

\u4f20\u7edf\u578b\u8def\u7531\u5668\u5b58\u5728\u7684\u610f\u4e49<\/span><\/p>\n

1.\u8def\u7531\u5668\u7684\u5fc5\u8981\u6027<\/p>\n

\u4e09\u5c42\u4ea4\u6362\u673a\u7684\u4ef7\u683c\uff0c\u5728\u95ee\u4e16\u4e4b\u521d\u975e\u5e38\u6602\u8d35\uff0c\u4f46\u662f\u73b0\u5728\u5b83\u4eec\u7684\u4ef7\u683c\u5df2\u7ecf\u4e0b\u964d\u4e86\u8bb8\u591a\u3002\u76ee\u524d\u56fd\u5916\u4e00\u4e9b\u5ec9\u4ef7\u673a\u578b\u7684\u552e\u4ef7\uff0c\u6298\u5408\u6210\u4eba\u6c11\u5e01\u540e\u4ec5\u4e3a\u4e00\u4e07\u591a\u5143\uff0c\u800c\u4e14\u8fd8\u5728\u7ee7\u7eed\u4e0b\u964d\u4e2d\u3002<\/p>\n

\u65e2\u7136\u4e09\u5c42\u4ea4\u6362\u673a\u80fd\u591f\u63d0\u4f9b\u6bd4\u4f20\u7edf\u578b\u8def\u7531\u5668\u66f4\u4e3a\u9ad8\u901f\u7684\u8def\u7531\u5904\u7406\uff0c\u90a3\u4e48\u7f51\u7edc\u4e2d\u8fd8\u6709\u4f7f\u7528\u8def\u7531\u5668\u7684\u5fc5\u8981\u5417?<\/p>\n

\u7b54\u6848\u662f\uff1a\u201c\u662f\u201d\u3002<\/p>\n

\u4f7f\u7528\u8def\u7531\u5668\u7684\u5fc5\u8981\u6027\uff0c\u4e3b\u8981\u8868\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n

(1)\u7528\u4e8e\u4e0eWAN\u8fde\u63a5<\/p>\n

\u4e09\u5c42\u4ea4\u6362\u673a\u7ec8\u7a76\u662f\u201c\u4ea4\u6362\u673a\u201d\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u7edd\u5927\u591a\u6570\u673a\u578b\u53ea\u914d\u6709LAN(\u4ee5\u592a\u7f51)\u63a5\u53e3\u3002\u5728\u5c11\u6570\u9ad8\u7aef\u4ea4\u6362\u673a\u4e0a\u4e5f\u6709\u7528\u4e8e\u8fde\u63a5WAN\u7684\u4e32\u884c\u63a5\u53e3\u6216\u662fATM\u63a5\u53e3\uff0c\u4f46\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u8fde\u63a5WAN\u8fd8\u662f\u9700\u8981\u7528\u5230\u8def\u7531\u5668\u3002<\/p>\n

(2)\u4fdd\u8bc1\u7f51\u7edc\u5b89\u5168<\/p>\n

\u5728\u4e09\u5c42\u4ea4\u6362\u673a\u4e0a\uff0c\u901a\u8fc7\u6570\u636e\u5305\u8fc7\u6ee4\u4e5f\u80fd\u786e\u4fdd\u4e00\u5b9a\u7a0b\u5ea6\u7684\u7f51\u7edc\u5b89\u5168\u3002\u4f46\u662f\u4f7f\u7528\u8def\u7531\u5668\u6240\u63d0\u4f9b\u7684\u5404\u79cd\u7f51\u7edc\u5b89\u5168\u529f\u80fd\uff0c\u7528\u6237\u53ef\u4ee5\u6784\u5efa\u66f4\u4e3a\u5b89\u5168\u53ef\u9760\u7684\u7f51\u7edc\u3002<\/p>\n

\u8def\u7531\u5668\u63d0\u4f9b\u7684\u7f51\u7edc\u5b89\u5168\u529f\u80fd\u4e2d\uff0c\u9664\u4e86\u6700\u57fa\u672c\u7684\u6570\u636e\u5305\u8fc7\u6ee4\u529f\u80fd\u5916\uff0c\u8fd8\u80fd\u57fa\u4e8eIPSec\u6784\u5efaVPN(VirtualPrivate Network)\u3001\u5229\u7528RADIUS\u8fdb\u884c\u7528\u6237\u8ba4\u8bc1\u7b49\u7b49\u3002<\/p>\n

(3)\u652f\u6301\u9664TCP\/IP\u4ee5\u5916\u7684\u5f02\u6784\u7f51\u7edc\u67b6\u6784<\/p>\n

\u5c3d\u7ba1TCP\/IP\u5df2\u7ecf\u6210\u4e3a\u5f53\u524d\u7f51\u7edc\u534f\u8bae\u67b6\u6784\u7684\u4e3b\u6d41\uff0c\u4f46\u8fd8\u6709\u4e0d\u5c11\u7f51\u7edc\u5229\u7528Novell Netware\u4e0b\u7684IPX\/SPX\u6216Macintosh\u4e0b\u7684AppleTalk\u7b49\u7f51\u7edc\u534f\u8bae\u3002\u4e09\u5c42\u4ea4\u6362\u673a\u4e2d\uff0c\u9664\u4e86\u90e8\u5206\u9ad8\u7aef\u673a\u578b\u5916\u57fa\u672c\u4e0a\u8fd8\u53ea\u652f\u6301TCP\/IP\u3002\u56e0\u6b64\uff0c\u5728\u9700\u8981\u4f7f\u7528\u9664TCP\/IP\u4e4b\u5916\u5176\u4ed6\u7f51\u7edc\u534f\u8bae\u7684\u73af\u5883\u4e0b\uff0c\u8def\u7531\u5668\u8fd8\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002<\/p>\n

\u6ce8\uff1a\u5728\u5c11\u6570\u9ad8\u7aef\u4ea4\u6362\u673a\u4e0a\uff0c\u4e5f\u80fd\u652f\u6301\u4e0a\u8ff0\u8def\u7531\u5668\u7684\u529f\u80fd\u3002\u4f8b\u5982Cisco\u7684Catalyst 6500\u7cfb\u5217\uff0c\u5c31\u53ef\u4ee5\u9009\u62e9\u4e0eWAN\u8fde\u63a5\u7684\u63a5\u53e3\u6a21\u5757;\u8fd8\u6709\u53ef\u9009\u7684\u57fa\u4e8eIPSec\u5b9e\u73b0VPN\u7684\u6a21\u5757;\u5e76\u4e14\u4e5f\u80fd\u652f\u6301TCP\/IP\u4ee5\u5916\u7684\u5176\u4ed6\u7f51\u7edc\u534f\u8bae\u3002<\/p>\n

2.\u8def\u7531\u5668\u548c\u4ea4\u6362\u673a\u914d\u5408\u6784\u5efaLAN\u7684\u5b9e\u4f8b<\/p>\n

\u4e0b\u9762\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u8def\u7531\u5668\u548c\u4ea4\u6362\u673a\u642d\u914d\u6784\u5efaLAN\u7684\u5b9e\u4f8b\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u5229\u7528\u5728\u5404\u697c\u5c42\u914d\u7f6e\u7684\u4e8c\u5c42\u4ea4\u6362\u673a\u5b9a\u4e49VLAN\uff0c\u8fde\u63a5TCP\/IP\u5ba2\u6237\u8ba1\u7b97\u673a\u3002\u5404\u697c\u5c42\u95f4\u7684VLAN\u95f4\u901a\u4fe1\uff0c\u5229\u7528\u4e09\u5c42\u4ea4\u6362\u673a\u7684\u9ad8\u901f\u8def\u7531\u52a0\u4ee5\u5b9e\u73b0\u3002\u5982\u679c\u7f51\u7edc\u73af\u5883\u8981\u6c42\u9ad8\u53ef\u9760\u6027\uff0c\u8fd8\u53ef\u4ee5\u8003\u8651\u5197\u4f59\u914d\u7f6e\u4e09\u5c42\u4ea4\u6362\u673a\u3002<\/p>\n

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\u53ea\u6709\u5728\u5145\u5206\u638c\u63e1\u4e86\u4e8c\u5c42\u3001\u4e09\u5c42\u4ea4\u6362\u673a\u4ee5\u53ca\u4f20\u7edf\u8def\u7531\u5668\u7684\u57fa\u7840\u4e0a\uff0c\u624d\u80fd\u505a\u5230\u7269\u7ade\u5176\u7528\uff0c\u6784\u7b51\u51fa\u9ad8\u6548\u7387\u3001\u9ad8\u6027\u4ef7\u6bd4\u7684\u7f51\u7edc\u3002<\/p>\n

\u4f7f\u7528VLAN\u8bbe\u8ba1\u5c40\u57df\u7f51<\/span><\/p>\n

1.\u4f7f\u7528VLAN\u8bbe\u8ba1\u5c40\u57df\u7f51\u7684\u7279\u70b9<\/p>\n

\u901a\u8fc7\u4f7f\u7528VLAN\u6784\u5efa\u5c40\u57df\u7f51\uff0c\u7528\u6237\u80fd\u591f\u4e0d\u53d7\u7269\u7406\u94fe\u8def\u7684\u9650\u5236\u800c\u81ea\u7531\u5730\u5206\u5272\u5e7f\u64ad\u57df\u3002<\/p>\n

\u53e6\u5916\uff0c\u901a\u8fc7\u5148\u524d\u63d0\u5230\u7684\u8def\u7531\u5668\u4e0e\u4e09\u5c42\u4ea4\u6362\u673a\u63d0\u4f9b\u7684VLAN\u95f4\u8def\u7531\uff0c\u80fd\u591f\u9002\u5e94\u7075\u6d3b\u591a\u53d8\u7684\u7f51\u7edc\u6784\u6210\u3002<\/p>\n

\u4f46\u662f\uff0c\u7531\u4e8e\u5229\u7528VLAN\u5bb9\u6613\u5bfc\u81f4\u7f51\u7edc\u6784\u6210\u590d\u6742\u5316\uff0c\u56e0\u6b64\u4e5f\u4f1a\u9020\u6210\u6574\u4e2a\u7f51\u7edc\u7684\u7ec4\u6210\u96be\u4ee5\u628a\u63e1\u3002<\/p>\n

\u53ef\u4ee5\u8fd9\u6837\u8bf4\uff0c\u5728\u5229\u7528VLAN\u65f6\uff0c\u9664\u4e86\u6709\u201c\u7f51\u7edc\u6784\u6210\u7075\u6d3b\u591a\u53d8\u201d\u8fd9\u4e2a\u4f18\u70b9\u5916\uff0c\u8fd8\u642d\u914d\u7740\u201c\u7f51\u7edc\u6784\u6210\u590d\u6742\u5316\u201d\u8fd9\u4e2a\u7f3a\u70b9\u3002<\/p>\n

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2.\u4e0d\u4f7f\u7528VLAN\u7684\u5c40\u57df\u7f51\u4e2d\u7f51\u7edc\u6784\u6210\u7684\u6539\u53d8<\/p>\n

\u5047\u8bbe\u6709\u5982\u56fe\u6240\u793a\u7684\u75311\u53f0\u8def\u7531\u5668\u30012\u53f0\u4ea4\u6362\u673a\u6784\u6210\u7684\u201c\u4e0d\u4f7f\u7528VLAN\u6784\u5efa\u201d\u7684\u7f51\u7edc\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

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\u73b0\u5728\u5982\u679c\u60f3\u5c06192.168.1.0\/24\u8fd9\u4e2a\u7f51\u7edc\u4e0a\u7684\u8ba1\u7b97\u673aA\u8f6c\u79fb\u5230192.168.2.0\/24\u4e0a\u53bb\uff0c\u5c31\u9700\u8981\u6539\u53d8\u7269\u7406\u8fde\u63a5\u3001\u5c06A\u63a5\u5230\u53f3\u4fa7\u7684\u4ea4\u6362\u673a\u4e0a\u3002<\/p>\n

\u5e76\u4e14\uff0c\u5f53\u9700\u8981\u65b0\u589e\u4e00\u4e2a\u5730\u5740\u4e3a192.168.3.0\/24\u7684\u7f51\u7edc\u65f6\uff0c\u8fd8\u8981\u5728\u8def\u7531\u5668\u4e0a\u518d\u5360\u7528\u4e00\u4e2aLAN\u63a5\u53e3\u5e76\u6dfb\u7f6e\u4e00\u53f0\u4ea4\u6362\u673a\u3002\u800c\u7531\u4e8e\u8fd9\u53f0\u8def\u7531\u5668\u4e0a\u53ea\u5e26\u4e862\u4e2aLAN\u63a5\u53e3\uff0c\u56e0\u6b64\u4e3a\u4e86\u65b0\u589e\u7f51\u7edc\u8fd8\u5fc5\u987b\u5c06\u8def\u7531\u5668\u5347\u7ea7\u4e3a\u5e26\u67093\u4e2a\u4ee5\u4e0aLAN\u63a5\u53e3\u7684\u4ea7\u54c1\u3002<\/p>\n

3.\u4f7f\u7528VLAN\u7684\u5c40\u57df\u7f51\u4e2d\u7f51\u7edc\u6784\u6210\u7684\u6539\u53d8<\/p>\n

\u63a5\u4e0b\u6765\u518d\u5047\u8bbe\u6709\u4e00\u4e2a\u75311\u53f0\u8def\u7531\u5668\u30012\u53f0\u4ea4\u6362\u673a\u6784\u6210\u7684\u201c\u4f7f\u7528VLAN\u201d\u7684\u5c40\u57df\u7f51\u3002\u4ea4\u6362\u673a\u4e0e\u4ea4\u6362\u673a\u3001\u4ea4\u6362\u673a\u4e0e\u8def\u7531\u5668\u4e4b\u95f4\u5747\u4e3a\u6c47\u805a\u94fe\u8def;\u5e76\u4e14\u5047\u8bbe192.168.1.0\/24\u5bf9\u5e94\u7ea2\u8272VLAN\u3001192.168.2.0\/24\u5bf9\u5e94\u84dd\u8272VLAN\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

\u9700\u8981\u5c06\u8fde\u63a5\u5728\u4ea4\u6362\u673a1\u4e0a192.168.1.0\/24\u8fd9\u4e2a\u7f51\u6bb5\u7684\u8ba1\u7b97\u673aA\u8f6c\u5c5e192.168.2.0\/24\u65f6\uff0c\u65e0\u9700\u66f4\u6539\u7269\u7406\u5e03\u7ebf\u3002\u53ea\u8981\u5728\u4ea4\u6362\u673a\u4e0a\u751f\u6210\u84dd\u8272VLAN\uff0c\u7136\u540e\u5c06\u8ba1\u7b97\u673aA\u6240\u8fde\u7684\u7aef\u53e31\u52a0\u5165\u5230\u84dd\u8272VLAN\u4e2d\u53bb\uff0c\u4f7f\u5b83\u6210\u4e3a\u8bbf\u95ee\u94fe\u63a5\u5373\u53ef\u3002<\/p>\n

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\u5e76\u4e14\uff0c\u5f53\u9700\u8981\u65b0\u589e\u4e00\u4e2a\u5730\u5740\u4e3a192.168.3.0\/24\u7684\u7f51\u6bb5\u65f6\uff0c\u4e5f\u53ea\u9700\u8981\u5728\u4ea4\u6362\u673a\u4e0a\u65b0\u5efa\u4e00\u4e2a\u5bf9\u5e94192.168.3.0\/24\u7684VLAN\uff0c\u5e76\u5c06\u6240\u9700\u7684\u7aef\u53e3\u52a0\u5165\u5b83\u7684\u8bbf\u95ee\u94fe\u8def\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n

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4.\u5229\u7528VLAN\u800c\u5bfc\u81f4\u7684\u7f51\u7edc\u7ed3\u6784\u590d\u6742\u5316<\/p>\n

\u867d\u7136\u5229\u7528VLAN\u53ef\u4ee5\u7075\u6d3b\u5730\u6784\u5efa\u7f51\u7edc\uff0c\u4f46\u662f\u540c\u65f6\uff0c\u5b83\u4e5f\u5e26\u6765\u4e86\u7f51\u7edc\u7ed3\u6784\u590d\u6742\u5316\u7684\u95ee\u9898\u3002<\/p>\n

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\"\"<\/div><\/center>
\"\"<\/div><\/center><\/p>\n

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\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4ec5\u75312\u53f0\u4ea4\u6362\u673a\u6784\u6210\u7f51\u7edc\uff0c\u5176\u6570\u636e\u6d41\u5df2\u7ecf\u5982\u6b64\u590d\u6742\uff0c\u5982\u679c\u6784\u5efa\u6a2a\u8de8\u591a\u53f0\u4ea4\u6362\u673a\u7684VLAN\u7684\u8bdd\uff0c\u6bcf\u4e2a\u6570\u636e\u6d41\u7684\u6d41\u5411\u663e\u7136\u4f1a\u66f4\u52a0\u96be\u4ee5\u628a\u63e1\u3002<\/p>\n

5.\u00a0\u7f51\u7edc\u7684\u903b\u8f91\u7ed3\u6784\u4e0e\u7269\u7406\u7ed3\u6784<\/p>\n

\u4e3a\u4e86\u5bf9\u5e94\u65e5\u6e10\u590d\u6742\u5316\u7684\u6570\u636e\u6d41\uff0c\u7ba1\u7406\u5458\u9700\u8981\u4ece\u201c\u903b\u8f91\u7ed3\u6784\u201d\u4e0e\u201c\u7269\u7406\u7ed3\u6784\u201d\u4e24\u65b9\u9762\u5165\u624b\uff0c\u628a\u63e1\u597d\u7f51\u7edc\u7684\u73b0\u72b6\u3002<\/p>\n

\u7269\u7406\u7ed3\u6784\uff0c\u6307\u7684\u662f\u4ece\u7269\u7406\u5c42\u548c\u6570\u636e\u94fe\u8def\u5c42\u89c2\u5bdf\u5230\u7684\u7f51\u7edc\u7684\u73b0\u72b6\uff0c\u8868\u793a\u4e86\u7f51\u7edc\u7684\u7269\u7406\u5e03\u7ebf\u5f62\u6001\u548cVLAN\u7684\u8bbe\u5b9a\u7b49\u7b49\u3002<\/p>\n

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\u8fd8\u662f\u5148\u524d\u7684\u90a3\u4e2a\u4f8b\u5b50\uff0c\u63cf\u7ed8\u4e86\u5e03\u7ebf\u5f62\u6001\u548cVLAN\u8bbe\u5b9a\u7684\u201c\u7269\u7406\u7ed3\u6784\u201d\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n

\"\"<\/div><\/center><\/p>\n

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\"\"<\/div><\/center><\/p>\n

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\u4e8c\u3001\u518d\u6765\u770b\u4e00\u4e0bVLAN\u5212\u5206\u4ee5\u53ca\u5b50\u7f51\u5212\u5206<\/span><\/p>\n

\n

1. VLAN\u5212\u5206\u662f\u5728\u4e8c\u5c42\u4ea4\u6362\u673a\u5c31\u80fd\u505a\u5230\u7684\uff0c\u800c\u5b50\u7f51\u5212\u5206\u662f\u4e09\u5c42\u7684\u6982\u5ff5\u3002\u524d\u8005\u662f\u5728\u94fe\u8def\u5c42\u5b9e\u73b0\u5e7f\u64ad\u57df\u7684\u9694\u79bb\uff08\u66f4\u5e95\u5c42\uff09\uff0c\u63d0\u5347\u5e26\u5bbd\u5229\u7528\u7387\uff0c\u800c\u540e\u8005\u662f\u5b9e\u73b0\u5404\u4e2a\u5b50\u7f51\u4e4b\u95f4\u7684\u901a\u4fe1\u9694\u79bb\u3002\u6bd4\u5982192.168.0.1\/24\u4e0e192.168.1.1\/24\u662f\u4e0d\u80fd\u76f4\u63a5\u901a\u4fe1\u7684\uff0c\u6ce8\u610f\u8fd9\u91cc\u662fIP\u5c42\u7684\u4e0d\u901a\uff0c\u6570\u636e\u94fe\u8def\u5c42\u7684\u62a5\u6587\u662f\u53ef\u8fbe\u7684\uff0c\u53ea\u4e0d\u8fc7\u5728IP\u5c42\u88ab\u4e22\u5f03\u4e86\u3002
2. \u6211\u4eec\u7ecf\u5e38\u8bf4\u7684\u5e7f\u64ad\u4e00\u822c\u5c31\u662f\u6307\u7531arp\u3001\u4ea4\u6362\u673a\u8f6c\u53d1\u65f6\u4ea7\u751f\u7684\u4ee5\u592a\u7f51\u5e27\u7684\u5e7f\u64ad\uff0c\u8fd9\u79cd\u5e7f\u64ad\u4f1a\u88ab\u9694\u79bb\u5728vlan\u4e2d\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5b50\u7f51\u5212\u5206\u548cvlan\u5212\u5206\u7ecf\u5e38\u505a\u6210\u4e00\u6837\u7684\uff0c\u5373\u4e00\u4e2avlan\u5bf9\u5e94\u4e00\u4e2a\u5b50\u7f51\u3002
3. \u540c\u4e2a\u5b50\u7f51\u4e0b\u53ef\u4ee5\u901a\u8fc7\u4e8c\u5c42\u4ea4\u6362\u673a\u5212\u5206\u591a\u4e2avlan\uff0c\u8fd9\u6837\u903b\u8f91\u4e0a\u76f8\u5f53\u4e8e\u5728\u8fd9\u4e2a\u5b50\u7f51\u5185\u90e8\u53c8\u5212\u5206\u6210\u4e86\u591a\u4e2a\u66f4\u5c0f\u7684\u5b50\u7f51\uff0c\u8fd9\u4e9b\u66f4\u5c0f\u7684\u5b50\u7f51\u95f4\u65e0\u6cd5\u76f4\u63a5\u901a\u4fe1\uff08\u8981\u901a\u4fe1\u7684\u8bdd\u5e94\u8be5\u8981\u53c2\u8003VLAN\u95f4\u8def\u7531\uff0c\u4f7f\u7528\u4e09\u5c42\u4ea4\u6362\u673a\u6216\u8005\u8def\u7531\u5668\uff09
4. \u4e8c\u5c42\u4ea4\u6362\u673a\u7684\u540c\u4e2avlan\u5185\u5212\u5206\u4e0d\u540c\u5b50\u7f51\uff0c\u6211\u8ba4\u4e3a\u662f\u6ca1\u6709\u610f\u4e49\u7684\u3002\u56e0\u4e3a\u591a\u4e2a\u5b50\u7f51\u95f4\u4e92\u76f8\u4e4b\u95f4\u8fd8\u80fd\u6536\u5230\u4ee5\u592a\u7f51\u5e27\u7684\u5e7f\u64ad\u5305\uff08\u5982arp\u5e7f\u64ad\u5305\uff09\uff0c\u6b64\u65f6vlan\u6839\u672c\u6ca1\u6709\u4ec0\u4e48\u610f\u4e49\uff08\u56e0\u4e3a\u6ca1\u6709\u9694\u79bb\u5e7f\u64ad\u57df\uff09\u3002\u6b64\u5916\uff0c\u4e0d\u540c\u5b50\u7f51\u95f4\u7684\u901a\u4fe1\u5fc5\u987b\u501f\u52a9\u4e09\u5c42\u4ea4\u6362\u673a\u6216\u8005\u8def\u7531\u5668\u624d\u80fd\u901a\u4fe1\u3002\u5f53\u7136\uff0c\u8fd8\u6709\u4e00\u79cd\u6700\u5e38\u89c1\u7684\u60c5\u51b5\u662f\uff1a\u4ea4\u6362\u673a\u4e0d\u5212\u5206vlan\uff0c\u5219\u53ef\u8ba4\u4e3a\u6240\u6709\u4e3b\u673a\u90fd\u5728vlan1\uff08\u9ed8\u8ba4vlan\uff09\uff0c\u6b64\u65f6\u5373\u4e3a\u540c\u4e00vlan\u5185\u5212\u5206\u591a\u4e2a\u5b50\u7f51\u3002\u4f46\u8fd9\u79cd\u60c5\u51b5\uff0c\u6211\u8ba4\u4e3a\u4e5f\u662f\u9700\u8981\u4e09\u5c42\u4ea4\u6362\u673a\u624d\u6709\u610f\u4e49\uff0c\u4e0d\u7136\u591a\u4e2a\u5b50\u7f51\u95f4\u65e0\u6cd5\u901a\u4fe1\uff08\u5fc5\u987b\u8981\u6709\u8def\u7531\u529f\u80fd\u624d\u80fd\u5b8c\u6210\u5b50\u7f51\u95f4\u901a\u4fe1\uff09\u3002<\/div>\n

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