{"id":9947,"date":"2022-05-17T18:23:11","date_gmt":"2022-05-18T01:23:11","guid":{"rendered":"https:\/\/www.xh86.me\/?p=9947"},"modified":"2022-05-17T18:23:11","modified_gmt":"2022-05-18T01:23:11","slug":"%e7%bd%91%e5%b7%a5%e4%ba%a4%e6%8d%a2%e5%9f%ba%e7%a1%80%ef%bc%881%ef%bc%89%e4%ba%a4%e6%8d%a2%e6%9c%ba%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.xh86.me\/?p=9947","title":{"rendered":"\u7f51\u5de5\u4ea4\u6362\u57fa\u7840\uff081\uff09\u4ea4\u6362\u673a\u57fa\u672c\u539f\u7406"},"content":{"rendered":"
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<\/section>\n<\/section>\n
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<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n

\u4e09\u5c42\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u7684\u8f6c\u53d1\u673a\u5236\u4e3b\u8981\u5206\u4e3a\u4e24\u4e2a\u90e8\u5206\uff1a<\/span><\/p>\n

\u4e8c\u5c42\u8f6c\u53d1\u548c\u4e09\u5c42\u4ea4\u6362\u3002<\/span><\/p>\n

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<\/section>\n
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<\/div><\/section>\n
<\/section>\n<\/section>\n
<\/section>\n<\/section>\n
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\u4e8c\u5c42\u8f6c\u53d1\u6d41\u7a0b<\/strong><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n

MAC\u00a0\u5730\u5740\u4ecb\u7ecd<\/span><\/strong><\/span><\/p>\n

\n

MAC\u5730\u5740\u662f 48 bit\u4e8c\u8fdb\u5236\u7684\u5730\u5740\uff0c\u00a0\u5982\uff1a00-e0-fc-00-00-06\u3002\u53ef\u4ee5\u5206\u4e3a\u5355\u64ad\u5730\u5740\u3001\u00a0\u591a\u64ad\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740\u3002
<\/span><\/p>\n

\n

\u5355\u64ad\u5730\u5740\uff1a\u7b2c\u4e00\u5b57\u8282\u6700\u4f4e\u4f4d\u4e3a0\uff0c\u5982\uff1a00-e0-fc-00-00-06<\/span><\/p>\n

\u591a\u64ad\u5730\u5740\uff1a\u7b2c\u4e00\u5b57\u8282\u6700\u4f4e\u4f4d\u4e3a1\uff0c\u5982\uff1a01-e0-fc-00-00-06<\/span><\/p>\n

(\u00a0\u95ee\u98981\uff1a\u4ee5\u00a003\u5f00\u5934\u7684MAC\u5730\u5740\u662f\u5355\u64adMAC\u5730\u5740\u8fd8\u662f\u591a\u64adMAC\u5730\u5740)<\/span><\/p>\n

\u5e7f\u64ad\u5730\u5740\uff1a48 \u4f4d\u51681\uff0c\u5982\uff1aff-ff-ff-ff-ff-ff<\/span><\/p>\n

\n

\u6ce8\u610f\u00a0\uff1a\u00a0<\/span><\/p>\n

1\uff09\u666e\u901a\u8bbe\u5907\u7f51\u5361\u6216\u8005\u8def\u7531\u5668\u8bbe\u5907\u8def\u7531\u63a5\u53e3\u7684MAC \u5730\u5740\u4e00\u5b9a\u662f\u5355\u64ad\u7684MAC\u5730\u5740\u624d\u80fd\u4fdd\u8bc1\u5176\u4e0e\u5176\u5b83\u8bbe\u5907\u7684\u4e92\u901a\u3002<\/span><\/p>\n

2\uff09MAC\u5730\u5740\u662f\u4e00\u4e2a\u4ee5\u592a\u7f51\u7edc\u8bbe\u5907\u5728\u7f51\u7edc\u4e0a\u8fd0\u884c\u7684\u57fa\u7840\uff0c\u4e5f\u662f\u94fe\u8def\u5c42\u529f\u80fd\u5b9e\u73b0\u7684\u7acb\u8db3\u70b9\u3002<\/span><\/p>\n

\n

\u4e8c\u5c42\u8f6c\u53d1\u4ecb\u7ecd<\/span><\/strong>
<\/span><\/p>\n

\n

\u4ea4\u6362\u673a\u4e8c\u5c42\u7684\u8f6c\u53d1\u7279\u6027\uff0c\u7b26\u5408802.1D \u7f51\u6865\u534f\u8bae\u6807\u51c6\u3002\u4ea4\u6362\u673a\u7684\u4e8c\u5c42\u8f6c\u53d1\u6d89\u53ca\u5230\u4e24\u4e2a\u5173\u952e\u7684\u7ebf\u7a0b\uff1a\u5730\u5740\u5b66\u4e60\u7ebf\u7a0b\u548c\u62a5\u6587\u8f6c\u53d1\u7ebf\u7a0b\u3002\u00a0\u5b66\u4e60\u7ebf\u7a0b\u5982\u4e0b\uff1a
<\/span><\/p>\n

\n

1\uff09\u4ea4\u6362\u673a\u63a5\u6536\u7f51\u6bb5\u4e0a\u7684\u6240\u6709\u6570\u636e\u5e27\uff0c\u5229\u7528\u63a5\u6536\u6570\u636e\u5e27\u4e2d\u7684\u6e90MAC\u5730\u5740\u6765\u5efa\u7acbMAC \u5730\u5740\u8868\uff1b<\/span><\/p>\n

2\uff09\u7aef\u53e3\u79fb\u52a8\u673a\u5236\uff1a\u4ea4\u6362\u673a\u5982\u679c\u53d1\u73b0\u4e00\u4e2a\u5305\u6587\u7684\u5165\u7aef\u53e3\u548c\u62a5\u6587\u4e2d\u6e90MAC\u5730\u5740\u7684\u6240\u5728\u7aef\u53e3\u00a0(\u5728\u4ea4\u6362\u673a\u7684MAC\u5730\u5740\u8868\u4e2d\u5bf9\u5e94\u7684\u7aef\u53e3)\u4e0d\u540c\uff0c\u5c31\u4ea7\u751f\u7aef\u53e3\u79fb\u52a8\uff0c\u5c06 MAC\u5730\u5740\u91cd\u65b0\u5b66\u4e60\u5230\u65b0\u7684\u7aef\u53e3\uff1b\u00a0<\/span><\/p>\n

3\uff09\u5730\u5740\u8001\u5316\u673a\u5236\uff1a\u5982\u679c\u4ea4\u6362\u673a\u5728\u5f88\u957f\u4e00\u6bb5\u65f6\u95f4\u4e4b\u5185\u6ca1\u6709\u6536\u5230\u67d0\u53f0\u4e3b\u673a\u53d1\u51fa\u7684\u62a5\u6587\uff0c\u5728\u8be5\u4e3b\u673a\u5bf9\u5e94\u7684MAC\u5730\u5740\u5c31\u4f1a\u88ab\u5220\u9664\uff0c\u7b49\u4e0b\u6b21\u62a5\u6587\u6765\u7684\u65f6\u5019\u4f1a\u91cd\u65b0\u5b66\u4e60\u3002\u6ce8\u610f\uff1a\u8001\u5316\u4e5f\u662f\u6839\u636e\u6e90MAC \u5730\u5740\u8fdb\u884c\u8001\u5316\u3002<\/span><\/p>\n

\n

\u62a5\u6587\u8f6c\u53d1\u7ebf\u7a0b\u00a0:<\/span><\/p>\n

\n

1\uff09\u4ea4\u6362\u673a\u5728MAC \u5730\u5740\u8868\u4e2d\u67e5\u627e\u6570\u636e\u5e27\u4e2d\u7684\u76ee\u7684MAC \u5730\u5740\uff0c\u5982\u679c\u627e\u5230\uff0c \u5c31\u5c06\u8be5 \u6570\u636e\u5e27\u53d1\u9001\u5230\u76f8\u5e94\u7684\u7aef\u53e3\uff0c\u5982\u679c\u627e\u4e0d\u5230\uff0c\u5c31\u5411\u6240\u6709\u7684\u7aef\u53e3\u53d1\u9001\uff1b<\/span><\/p>\n

2\uff09\u5982\u679c\u4ea4\u6362\u673a\u6536\u5230\u7684\u62a5\u6587\u4e2d\u6e90MAC \u5730\u5740\u548c\u76ee\u7684MAC \u5730\u5740\u6240\u5728\u7684\u7aef\u53e3\u76f8\u540c\uff0c\u5219 \u4e22\u5f03\u8be5\u62a5\u6587\uff1b<\/span><\/p>\n

3\uff09\u4ea4\u6362\u673a\u5411\u5165\u7aef\u53e3\u4ee5\u5916\u7684\u5176\u5b83\u6240\u6709\u7aef\u53e3\u8f6c\u53d1\u5e7f\u64ad\u62a5\u6587\u3002<\/span><\/p>\n

\n

VLAN\u00a0\u4e8c\u5c42\u8f6c\u53d1\u4ecb\u7ecd<\/span><\/strong><\/p>\n

\n

\u62a5\u6587\u8f6c\u53d1\u7ebf\u7a0b\u00a0:\u00a0<\/span><\/p>\n

\u5f15\u5165\u4e86 VLAN \u4ee5\u540e\u5bf9\u4e8c\u5c42\u4ea4\u6362\u673a\u7684\u62a5\u6587\u8f6c\u53d1\u7ebf\u7a0b\u4ea7\u751f\u4e86\u5982\u4e0b\u7684\u5f71\u54cd\uff1a\u00a0<\/span><\/p>\n

\n

1\uff09\u4ea4\u6362\u673a\u5728 \u00a0MAC \u5730\u5740\u8868\u4e2d\u67e5\u627e\u6570\u636e\u5e27\u4e2d\u7684\u76ee\u7684MAC\u5730\u5740\uff0c\u5982\u679c\u627e\u5230\uff08\u540c\u65f6\u8fd8\u8981\u786e\u4fdd\u62a5\u6587\u7684\u5165VLAN \u548c\u51faVLAN \u662f\u4e00\u81f4\u7684\uff09\uff0c\u5c31\u5c06\u8be5\u6570\u636e\u5e27\u53d1\u9001\u5230\u76f8\u5e94\u7684\u7aef\u53e3\uff0c\u5982\u679c\u627e\u4e0d\u5230\uff0c\u5c31\u5411\uff08VLAN\u5185\uff09\u6240\u6709\u7684\u7aef\u53e3\u53d1\u9001\uff1b\u00a0<\/span><\/p>\n

2\uff09\u5982\u679c\u4ea4\u6362\u673a\u6536\u5230\u7684\u62a5\u6587\u4e2d\u6e90MAC \u5730\u5740\u548c\u76ee\u7684MAC\u5730\u5740\u6240\u5728\u7684\u7aef\u53e3\u76f8\u540c\uff0c\u5219\u4e22\u5f03\u8be5\u62a5\u6587\uff1b<\/span><\/p>\n

3\uff09\u4ea4\u6362\u673a\u5411\u00a0\uff08VLAN\uff09\u00a0\u5165\u7aef\u53e3\u4ee5\u5916\u7684\u5176\u5b83\u6240\u6709\u7aef\u53e3\u8f6c\u53d1\u5e7f\u64ad\u62a5\u6587\u3002\u00a0<\/span><\/p>\n

\n

\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u4e0a\u901a\u8fc7\u5f15\u5165VLAN \uff0c\u5e26\u6765\u4e86\u5982\u4e0b\u7684\u597d\u5904\uff1a<\/span><\/p>\n

\n

1\uff09\u9650\u5236\u4e86\u5c40\u90e8\u7684\u7f51\u7edc\u6d41\u91cf\uff0c\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u53ef\u4ee5\u63d0\u9ad8\u6574\u4e2a\u7f51\u7edc\u7684\u5904\u7406\u80fd\u529b\u3002\u00a0<\/span><\/p>\n

2\uff09\u865a\u62df\u7684\u5de5\u4f5c\u7ec4\uff0c\u901a\u8fc7\u7075\u6d3b\u7684VLAN\u8bbe\u7f6e\uff0c\u628a\u4e0d\u540c\u7684\u7528\u6237\u5212\u5206\u5230\u5de5\u4f5c\u7ec4\u5185\uff1b<\/span><\/p>\n

3\uff09\u5b89\u5168\u6027\uff0c\u4e00\u4e2aVLAN \u5185\u7684\u7528\u6237\u548c\u5176\u5b83VLAN\u5185\u7684\u7528\u6237\u4e0d\u80fd\u4e92\u8bbf\uff0c\u00a0\u63d0\u9ad8\u4e86\u5b89\u5168\u6027\u3002<\/span><\/p>\n

\n

\u53e6\u5916\uff0c\u8fd8\u6709\u5e38\u89c1\u7684\u4e24\u4e2a\u6982\u5ff5VLAN\u7684\u7ec8\u7ed3\u548c\u900f\u4f20\uff0c\u4ece\u5b57\u9762\u610f\u601d\u4e0a\u5c31\u53ef\u4ee5\u5f88\u597d\u7684\u4e86\u89e3\u8fd9\u4e24\u4e2a\u6982\u5ff5\u3002<\/span><\/p>\n

\n

\u6240\u8c13VLAN\u7684\u900f\u4f20\u5c31\u662f\u67d0\u4e2aVLAN\u4e0d\u4ec5\u5728\u4e00\u53f0\u4ea4\u6362\u673a\u4e0a\u6709\u6548\uff0c\u5b83\u8fd8\u8981\u901a\u8fc7\u67d0\u79cd\u65b9\u6cd5\u5ef6\u4f38\u5230\u522b\u7684\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u4e0a\uff0c\u5728\u522b\u7684\u8bbe\u5907\u4e0a\u7167\u6837\u6709\u6548\uff1b\u7ec8\u7ed3\u7684\u610f\u601d\u53ca\u76f8\u5bf9\uff0c\u67d0\u4e2aVLAN\u7684\u6709\u6548\u57df\u4e0d\u80fd\u518d\u5ef6\u4f38\u5230\u522b\u7684\u8bbe\u5907\uff0c\u6216\u8005\u4e0d\u80fd\u901a\u8fc7\u67d0 \u6761\u94fe\u8def\u5ef6\u4f38\u5230\u522b\u7684\u8bbe\u5907\u3002<\/span><\/p>\n

\n

VLAN \u900f\u4f20\u53ef\u4ee5\u4f7f\u7528802.1Q \u6280\u672f\uff0cVLAN \u7ec8\u7ed3\u53ef\u4ee5\u4f7f\u7528PVLAN\u6280\u672f\u3002<\/span><\/p>\n

\n

IEEE802.1Q\u534f\u8bae\u662f VLAN \u7684\u6280\u672f\u6807\u51c6 ,\u4e3b\u8981\u662f\u4fee\u6539\u4e86\u6807\u51c6\u7684\u5e27\u5934\uff0c\u6dfb\u52a0\u4e86\u4e00\u4e2a tag \u5b57\u6bb5\uff0c\u5176\u4e2d\u5305\u542b\u4e86VLAN ID \u7b49 VLAN \u4fe1\u606f\uff0c\u5177\u4f53\u5b9e\u73b0\u8fd9\u91cc\u4e0d\u8c08\uff0c\u5982\u679c\u6709\u5174\u8da3 \u53ef\u4ee5\u770b\u76f8\u5173\u7684\u6807\u51c6\u548c\u8d44\u6599\u3002<\/span><\/p>\n

\n

\u6ce8\u610f\uff1a<\/span><\/p>\n

\n

\u5728 Trunk \u7aef\u53e3\u8f6c\u53d1\u62a5\u6587\u7684\u65f6\u5019\uff0c\u5982\u679c\u62a5\u6587\u7684VLAN Tag \u7b49\u4e8e\u7aef\u53e3\u4e0a\u914d\u7f6e\u7684\u9ed8\u8ba4VLANID\uff0c\u5219\u8be5\u62a5\u6587\u7684Tag \u5e94\u8be5\u53bb\u6389\uff0c\u5bf9\u7aef\u6536\u5230\u8fd9\u4e2a\u4e0d\u5e26Tag \u4fe1\u606f\u7684\u62a5\u6587 \u540e\uff0c\u4ece\u7aef\u53e3\u7684PVID \u83b7\u5f97\u62a5\u6587\u7684\u6240\u5c5eVLAN \u4fe1\u606f\uff0c\u56e0\u6b64\u914d\u7f6e\u7684\u65f6\u5019\u5fc5\u987b\u4fdd\u8bc1\u8fde\u63a5\u4e24\u53f0\u4ea4\u6362\u673a\u4e4b\u95f4\u7684\u4e00\u6761Trunk \u94fe\u8def\u4e24\u7aef\u7684PVID \u8bbe\u7f6e\u76f8\u540c\u3002<\/span><\/p>\n

\n

\u4e3a\u4ec0\u4e48\u8981\u53bbTag\u5462\uff1f<\/span><\/strong><\/p>\n

\n

\u8fd9\u6837\u505a\u662f\u4e3a\u4e86\u4fdd\u8bc1\u4e00\u822c\u7684\u7528\u6237\u63d2\u5230Trunk\u4e0a\u4ee5\u540e\uff0c\u00a0\u4ecd\u65e7\u53ef\u4ee5\u6b63\u5e38\u901a\u4fe1\uff0c\u00a0\u56e0\u4e3a\u666e\u901a\u7528\u6237\u65e0\u6cd5\u8bc6\u522b\u5e26\u6709802.1Q Vlan\u4fe1\u606f\u7684\u62a5\u6587\u3002<\/span><\/p>\n

\n

\u4f7f\u7528 802.1Q \u6280\u672f\u53ef\u4ee5\u5f88\u597d\u7684\u5b9e\u73b0VLAN \u7684\u900f\u4f20\uff0c\u53ef\u662f\u6709\u7684\u65f6\u5019\u9700\u8981\u628aVLAN \u7ec8 \u7ed3\u6389\uff0c\u4e5f\u5c31\u662f\u8bf4\u8fd9\u4e2aVLAN \u7684\u8fb9\u754c\u5728\u54ea\u91cc\u7ec8\u6b62\uff0cPVLAN \u6280\u672f\u53ef\u4ee5\u5f88\u597d\u7684\u5b9e\u73b0\u8fd9 \u4e2a\u529f\u80fd\uff0c\u540c\u65f6\u8fbe\u5230\u8282\u7701VLAN\u7684\u76ee\u7684\u3002cisco \u7684 PVLAN \u610f\u601d\u662f private vlan \uff0c \u800c\u6211\u4eec\u7684PVLAN \u610f\u601d\u662f primary vlan \u3002<\/span><\/p>\n

\n

\u8fd9\u91cc\u7684 VLAN \u6709\u4e24\u7c7b\uff1a<\/span><\/p>\n

\n

Primary vlan\u548csecondary vlan\uff08\u5b50VLAN\uff09<\/span><\/p>\n

\n

\u5b9e\u73b0\u4e86\u63a5\u5165\u7528\u6237\u4e8c\u5c42\u62a5\u6587\u7684\u9694\u79bb\uff0c\u540c\u65f6\u4e0a\u5c42\u4ea4\u6362\u673a\u4e0b\u53d1\u7684\u62a5\u6587\u53ef\u4ee5\u88ab\u6bcf\u4e00\u4e2a\u7528\u6237\u63a5\u6536\u5230\uff0c\u7b80\u5316\u4e86\u914d\u7f6e\uff0c\u8282\u7701\u4e86VLAN\u8d44\u6e90\u3002\u5177\u4f53\u5b9e\u73b0\u8fd9\u91cc\u4e0d\u8c08\uff0c\u5982\u679c\u6709\u5174\u8da3\u53ef\u4ee5\u76f8\u5173\u8d44\u6599\u3002<\/span><\/p>\n

\n

\n
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<\/section>\n
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<\/div><\/section>\n
<\/section>\n<\/section>\n
<\/section>\n<\/section>\n
\n
\u4e09\u5c42\u4ea4\u6362\u6d41\u7a0b<\/strong><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n

\u7528 VLAN \u00a0\u5206\u6bb5\uff0c\u9694\u79bb\u4e86VLAN\u95f4\u7684\u901a\u4fe1\uff0c\u7528\u652f\u6301VLAN\u7684\u8def\u7531\u5668\uff08\u4e09\u5c42\u8bbe\u5907\uff09\u53ef\u4ee5\u5efa\u7acbVLAN\u95f4\u901a\u4fe1\u3002\u4f46\u4f7f\u7528\u8def\u7531\u5668\u6765\u4e92\u8054\u4f01\u4e1a\u56ed\u533a\u7f51\u4e2d\u4e0d\u540c\u7684VLAN\u663e\u7136\u4e0d\u5408\u65f6\u4ee3\u7684\u6f6e\u6d41\u3002\u56e0\u4e3a\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e09\u5c42\u4ea4\u6362\u6765\u5b9e\u73b0\u3002
<\/span><\/p>\n

\n

\u5dee\u522b1\uff08\u6027\u80fd\uff09\uff1a<\/span><\/p>\n

\n

\u4f20\u7edf\u7684\u8def\u7531\u5668\u57fa\u4e8e\u5fae\u5904\u7406\u5668\u8f6c\u53d1\u62a5\u6587\uff0c\u9760\u8f6f\u4ef6\u5904\u7406\uff0c\u800c\u4e09\u5c42\u4ea4\u6362\u673a\u901a\u8fc7ASIC \u786c\u4ef6\u6765\u8fdb\u884c\u62a5\u6587\u8f6c\u53d1\uff0c\u6027\u80fd\u5dee\u522b\u5f88\u5927\uff1b<\/span><\/p>\n

\n

\u5dee\u522b2\uff08\u63a5\u53e3\u7c7b\u578b\uff09\uff1a<\/span><\/p>\n

\n

\u4e09\u5c42\u4ea4\u6362\u673a\u7684\u63a5\u53e3\u57fa\u672c\u90fd\u662f\u4ee5\u592a\u7f51\u63a5\u53e3\uff0c\u6ca1\u6709\u8def\u7531\u5668\u63a5\u53e3\u7c7b\u578b\u4e30\u5bcc\uff1b\u00a0<\/span><\/p>\n

\n

\u5dee\u522b 3\uff1a<\/span><\/p>\n

\n

\u4e09\u5c42\u4ea4\u6362\u673a\uff0c \u8fd8\u53ef\u4ee5\u5de5\u4f5c\u5728\u4e8c\u5c42\u6a21\u5f0f\uff0c\u5bf9\u67d0\u4e9b\u4e0d\u9700\u8def\u7531\u7684\u5305\u6587\u76f4\u63a5\u4ea4\u6362\uff0c \u800c\u8def\u7531\u5668\u4e0d\u5177\u6709\u4e8c\u5c42\u7684\u529f\u80fd\u3002<\/span><\/p>\n

\n

\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u8bbe\u5907\u4e92\u901a\u7684\u8fc7\u7a0b\uff1a<\/span><\/strong><\/p>\n

<\/div><\/p>\n

\n

\u5982\u56fe\u6240\u793a\uff1a\u4ea4\u6362\u673a\u4e0a\u5212\u5206\u4e86\u4e24\u4e2aVLAN \uff0c\u5728 VLAN1 \uff0cVLAN 2 \u4e0a\u914d\u7f6e\u4e86\u8def\u7531\u63a5\u53e3\u7528\u6765\u5b9e\u73b0vlan1\u548cvlan 2 \u4e4b\u95f4\u7684\u4e92\u901a\u3002
<\/span><\/p>\n

\n

A \u548c B \u4e4b\u95f4\u7684\u4e92\u901a\uff08\u4ee5A \u5411 B \u53d1\u8d77 ping\u8bf7\u6c42\u4e3a\u4f8b\uff09\uff1a<\/span><\/p>\n

\n

1\uff09A \u68c0\u67e5\u62a5\u6587\u7684\u76ee\u7684IP \u5730\u5740\uff0c\u53d1\u73b0\u548c\u81ea\u5df1\u5728\u540c\u4e00\u4e2a\u7f51\u6bb5\uff1b<\/span><\/p>\n

2\uff09A—->BARP \u8bf7\u6c42\u62a5\u6587\uff0c\u8be5\u62a5\u6587\u5728VLAN1\u5185\u5e7f\u64ad\uff1b<\/span><\/p>\n

3\uff09B—->AARP \u56de\u5e94\u62a5\u6587\uff1b\u00a0<\/span><\/p>\n

4\uff09A—->Bicmp request;\u00a0<\/span><\/p>\n

5\uff09B—->Aicmp reply;<\/span><\/p>\n

A \u548c C \u4e4b\u95f4\u7684\u4e92\u901a\uff08\u4ee5A \u5411C\u53d1\u8d77 ping\u8bf7\u6c42\u4e3a\u4f8b\uff09\uff1a<\/span><\/p>\n

1\uff09A \u68c0\u67e5\u62a5\u6587\u7684\u76ee\u7684IP \u5730\u5740\uff0c\u53d1\u73b0\u548c\u81ea\u5df1\u4e0d\u5728\u540c\u4e00\u4e2a\u7f51\u6bb5\uff1b<\/span><\/p>\n

2\uff09A—->switch \uff08int vlan 1\uff09ARP \u8bf7\u6c42\u62a5\u6587\uff0c\u8be5\u62a5\u6587\u5728VLAN1\u5185\u5e7f\u64ad\uff1b<\/span><\/p>\n

3\uff09\u7f51\u5173\u00a0—->AARP \u56de\u5e94\u62a5\u6587\uff1b<\/span><\/p>\n

4\uff09A—->switch \u00a0 icmp request \uff08\u76ee\u7684 MAC \u662fint vlan 1 \u7684 MAC \uff0c\u6e90 MAC\u662f A \u7684 MAC \uff0c\u76ee\u7684 IP\u662f C\uff0c\u6e90 IP \u662f A\uff09\uff1b<\/span><\/p>\n

5\uff09switch \u6536\u5230\u62a5\u6587\u540e\u5224\u65ad\u51fa\u662f\u4e09\u5c42\u7684\u62a5\u6587\u3002\u68c0\u67e5\u62a5\u6587\u7684\u76ee\u7684IP \u5730\u5740\uff0c\u53d1\u73b0\u662f\u5728\u81ea\u5df1\u7684\u76f4\u8fde\u7f51\u6bb5\uff1b<\/span><\/p>\n

6\uff09switch \uff08int vlan 2 \uff09\u00a0—->CARP \u8bf7\u6c42\u62a5\u6587\uff0c\u8be5\u62a5\u6587\u5728VLAN2\u5185\u5e7f\u64ad\uff1b<\/span><\/p>\n

7\uff09C—>switch \uff08int vlan 2 \uff09ARP \u56de\u5e94\u62a5\u6587\uff1b<\/span><\/p>\n

8\uff09switch \uff08int vlan 2 \uff09\u00a0—->C \u00a0\u00a0 icmp request \uff08\u76ee\u7684 \u00a0MAC \u662fC \u7684 MAC \uff0c\u6e90MAC \u662f \u00a0int \u00a0vlan 2 \u7684 MAC \uff0c\u76ee\u7684 IP \u662fC \uff0c\u6e90 IP \u662f A \uff09\u540c\u6b65\u9aa4 4 \uff09\u76f8\u6bd4\u62a5\u6587\u7684MAC \u5934\u8fdb\u884c\u4e86\u91cd\u65b0\u7684\u5c01\u88c5\uff0c\u800c IP \u5c42\u4ee5\u4e0a\u7684\u5b57\u6bb5\u57fa\u672c\u4e0a\u4e0d\u53d8\uff1b\u00a0<\/span><\/p>\n

9\uff09 C—->A \u00a0 icmp reply \uff0c\u8fd9\u4ee5\u540e\u7684\u5904\u7406\u540c\u524d\u9762icmp request \u00a0\u7684\u8fc7\u7a0b\u57fa\u672c\u76f8\u540c\u3002\u4ee5\u4e0a\u7684\u5404\u6b65\u5904\u7406\u4e2d\uff0c\u5982\u679c ARP \u8868\u4e2d\u5df2\u7ecf\u6709\u4e86\u76f8\u5e94\u7684\u8868\u9879\uff0c\u5219\u4e0d\u4f1a\u7ed9\u5bf9\u65b9\u53d1 ARP\u8bf7\u6c42\u62a5\u6587\u3002<\/span><\/p>\n

\n

\u600e\u4e48\u6837\u6765\u533a\u5206\u4e8c\u548c\u4e09\u5c42\u7684\u6570\u636e\u6d41\uff1f<\/span><\/strong><\/p>\n

3526\u4ea7\u54c1\u662f\u4e09\u5c42\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\uff0c\u5728\u5176\u5904\u7406\u6d41\u7a0b\u4e2d\u65e2\u5305\u62ec\u4e86\u4e8c\u5c42\u7684\u5904\u7406\u529f\u80fd\uff0c\u53c8 \u5305\u62ec\u4e86\u4e09\u5c42\u7684\u5904\u7406\u529f\u80fd\u3002<\/span><\/p>\n

\n

\u533a\u522b\u4e8c\u4e09\u5c42\u8f6c\u53d1\u7684\u57fa\u672c\u6a21\u578b\uff1a<\/span><\/strong><\/p>\n

\n

<\/div><\/p>\n

\n

\u5982\u56fe\u6240\u793a\uff1a\u00a0<\/span><\/strong><\/p>\n

\n

\u4e09\u5c42\u4ea4\u6362\u673a\u5212\u5206\u4e862\u4e2a VLAN \uff0cA \u548c B\u4e4b\u95f4\u7684\u901a\u4fe1\u662f\u5728\u4e00\u4e2a VLAN \u5185\u5b8c\u6210\uff0c\u5bf9 \u4e0e\u4ea4\u6362\u673a\u800c\u8a00\u662f\u4e8c\u5c42\u6570\u636e\u6d41\uff0cA \u548c C\u4e4b\u95f4\u7684\u901a\u4fe1\u9700\u8981\u8de8\u8d8aVLAN \uff0c\u662f\u4e09\u5c42\u7684\u6570\u636e\u6d41\u3002<\/span><\/p>\n

\n

\u4e0a\u9762\u63d0\u5230\u7684\u662f\u5b8f\u89c2\u7684\u65b9\u6cd5\uff0c\u5177\u4f53\u5230\u5fae\u89c2\u7684\u89d2\u5ea6\uff0c\u4e00\u4e2a\u62a5\u6587\u4ece\u7aef\u53e3\u8fdb\u5165\u540e\uff0cSwtich\u8bbe\u5907\u662f\u600e\u4e48\u6765\u533a\u5206\u4e8c\u5c42\u5305\u6587\uff0c\u8fd8\u662f\u4e09\u5c42\u62a5\u6587\u7684\u5462\uff1f\u00a0<\/span><\/p>\n

\n

\u4ece A \u5230 B \u7684\u62a5\u6587\u7531\u4e8e\u5728\u540c\u4e00\u4e2aVLAN \u5185\u90e8\uff0c\u62a5\u6587\u7684\u76ee\u7684MAC \u5730\u5740\u5c06\u662f\u4e3b\u673aB \u7684 MAC \u5730\u5740\uff0c\u800c\u4eceA \u5230C\u7684\u62a5\u6587\u8981\u8de8\u8d8aVLAN\uff0c\u62a5\u6587\u7684\u76ee\u7684MAC \u5730\u5740\u662f\u8bbe \u5907\u865a\u63a5\u53e3VLAN1\u4e0a\u7684 MAC \u5730\u5740\u3002\u56e0\u6b64\u4ea4\u6362\u673a\u533a\u5206\u4e8c\u4e09\u5c42\u62a5\u6587\u7684\u6807\u51c6\u5c31\u662f\u770b\u62a5\u6587\u7684\u76ee\u7684MAC \u5730\u5740\u662f\u5426\u7b49\u4e8e\u4ea4\u6362\u673a\u865a\u63a5\u53e3\u4e0a\u7684MAC \u5730\u5740\u3002<\/span><\/p>\n

\n

\u4ee5 S3526 \u00a0\u4ea4\u6362\u673a\u4e3a\u4f8b\uff0c\u4e09\u5c42\u4ea4\u6362\u673a\u6574\u4e2a\u5904\u7406\u6d41\u7a0b\u4e2d\u5206\u6210\u4e86\u4e09\u4e2a\u5927\u7684\u90e8\u5206\uff1a<\/span><\/p>\n

\n

1\uff09\u5e73\u53f0\u8f6f\u4ef6\u534f\u8bae\u6808\u90e8\u5206<\/span><\/strong><\/p>\n

\u8fd9\u90e8\u5206\u4e2d\u5173\u952e\u529f\u80fd\u6709\uff1a<\/span>\u8fd0\u884c\u8def\u7531\u534f\u8bae\uff0c\u7ef4\u62a4\u8def\u7531\u4fe1\u606f\u8868\uff1b<\/span><\/p>\n

IP \u534f\u8bae\u6808\u529f\u80fd\uff0c\u5728\u6574\u4e2a\u7cfb\u7edf\u7684\u5904\u7406\u6d41\u7a0b\u4e2d\uff0c\u8fd9\u90e8\u5206\u62c5\u8d1f\u7740\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5f53\u786c\u4ef6\u4e0d\u80fd\u5b8c\u6210\u62a5\u6587\u8f6c\u53d1\u7684\u65f6\u5019\uff0c\u8fd9\u90e8\u5206\u53ef\u4ee5\u4ee3\u66ff\u786c\u4ef6\u6765\u5b8c\u6210\u62a5\u6587\u7684\u4e09\u5c42\u8f6c\u53d1\u3002\u53e6\u5916\u5bf9\u4ea4\u6362\u673a\u8fdb\u884ctelnet, ping, ftp,snmp\u7684\u6570\u636e\u6d41\u90fd\u662f\u5728\u8fd9\u90e8\u5206\u6765\u5904\u7406\u3002<\/span><\/p>\n

\n

<\/div><\/p>\n

\n

2\uff09\u786c\u4ef6\u5904\u7406\u6d41\u7a0b<\/span><\/strong><\/p>\n

\n

\u4e3b\u8981\u7684\u8868\u9879\u662f\uff1a\u4e8c\u5c42MAC\u5730\u5740\u8868\uff0c\u548c\u4e09\u5c42\u7684ip fdb \u8868\uff0c\u8fd9\u4e24\u4e2a\u8868\u4e2d\u7528\u4e8e\u4fdd\u5b58\u8f6c \u53d1\u4fe1\u606f\uff0c\u5728\u8f6c\u53d1\u4fe1\u606f\u6bd4\u8f83\u5168\u7684\u60c5\u51b5\u4e0b\uff0c\u62a5\u6587\u7684\u8f6c\u53d1\u548c\u5904\u7406\u5168\u90e8\u7531\u786c\u4ef6\u6765\u5b8c\u6210\u5904\u7406\uff0c\u4e0d\u9700\u8981\u8f6f\u4ef6\u7684\u5e72\u9884\u3002\u8fd9\u4e24\u4e2a\u8868\u7684\u529f\u80fd\u662f\u72ec\u7acb\u7684\uff0c\u6ca1\u6709\u76f8\u4e92\u7684\u5173\u7cfb\uff0c\u56e0\u4e3a\u4e00\u4e2a\u62a5\u6587\u53ea\u8981\u4e00\u8fdb\u5165\u4ea4\u6362\u673a\uff0c\u786c\u4ef6\u5c31\u4f1a\u533a\u5206\u51fa\u8fd9\u4e2a\u5305\u662f\u4e8c\u5c42\u8fd8\u662f\u4e09\u5c42\u3002\u975e\u6b64\u5373\u5f7c\u3002<\/span><\/p>\n

\n

\u4f8b\u5982\uff1ashow mac all\uff1a<\/span><\/p>\n

\n

<\/div><\/p>\n

\n

MAC \u5730\u5740\u8868\u662f\u7cbe\u786e\u5339\u914d\u7684IVL \u65b9\u5f0f\uff0c\u00a0\u5176\u4e2d\u5173\u952e\u7684\u53c2\u6570\u662f\uff1aVlan ID\uff0cPort index\u3002<\/span><\/p>\n

\n

<\/div><\/p>\n

\n

\u8def\u7531\u63a5\u53e3\u7d22\u5f15\uff08RtIf \uff09\uff1a\u8be5\u7d22\u5f15\u7528\u6765\u786e\u5b9a\u8be5\u8f6c\u53d1\u8868\u9879\u4f4d\u4e8e\u54ea\u4e2a\u8def\u7531\u63a5\u53e3\u4e0b\u9762\uff0c\u5bf93526 \u4ea7\u54c1\u6765\u8bb2\uff0c\u652f\u6301\u7684\u8def\u7531\u63a5\u53e3\u6570\u76ee\u662f32\uff1b<\/span><\/p>\n

\n

Vlan tag:\u8be5\u503c\u7528\u6765\u8868\u660e\u6240\u5904\u7684VLAN \uff0c\u8be5 VLAN \u548c\u8def\u7531\u63a5\u53e3\u662f\u5bf9\u5e94\u7684\uff1b\u00a0<\/span><\/p>\n

\n

Vlan tag \u6709\u6548\u4f4d\uff08 VTValid \uff09\uff1a\u7528\u6765\u6807\u8bc6\u8f6c\u53d1\u51fa\u53bb\u7684\u62a5\u6587\u4e2d\u662f\u5426\u9700\u8981\u63d2\u5165Vlan tag\u6807\u8bb0\u3002\u00a0<\/span><\/p>\n

\n

\u7aef\u53e3\u7d22\u5f15\uff08 Port\uff09\uff1a\u7528\u6765\u8bf4\u660e\u8be5\u8f6c\u53d1\u8868\u9879\u7684\u51fa\u7aef\u53e3\uff1b\u00a0<\/span><\/p>\n

\n

\u4e0b\u4e00\u8df3MAC \uff1a\u4e09\u5c42\u8bbe\u5907\u6bcf\u5b8c\u6210\u4e00\u8df3\u7684\u8f6c\u53d1\uff0c\u4f1a\u91cd\u65b0\u5c01\u88c5\u62a5\u6587\u4e2d\u7684MAC\u5934\uff0c\u786c \u4ef6 ASIC \u82af\u7247\u4e00\u822c\u4f9d\u636e\u8fd9\u4e2a\u57df\u91cc\u9762\u7684\u6570\u503c\u6765\u5c01\u88c5\u62a5\u6587\u5934\u3002<\/span><\/p>\n

\n

\ud83c\udf30\u4e24\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\uff1a\u00a0<\/span><\/strong><\/p>\n

\n

\u89e3\u6790\uff0c\u672a\u89e3\u6790\uff0c\u6bcf\u6b21\u6536\u5230\u62a5\u6587\uff0cASIC\u90fd\u4f1a\u4ece\u5176\u4e2d\u63d0\u53d6\u51fa\u6e90\u548c\u76ee\u7684\u5730\u5740\u5728MAC Table \u6216\u8005IP Fdb Table \u4e2d\u8fdb\u884c\u67e5\u627e\uff0c\u5982\u679c\u5730\u5740\u5728\u8f6c\u53d1\u8868\u4e2d\u53ef\u4ee5\u627e\u5230\uff0c\u5219\u8ba4\u4e3a\u8be5\u5730\u5740\u662f\u89e3\u6790\u7684\uff0c\u5982\u679c\u627e\u4e0d\u5230\uff0c\u5219\u8ba4\u4e3a\u8be5\u5730\u5740\u662f\u672a\u89e3\u6790\u7684\u3002<\/span><\/p>\n

\n

\u6839\u636e\u8fd9\u4e2a\u5730\u5740\u662f\u6e90\uff0c\u8fd8 \u662f\u76ee\u7684\uff0c\u8fd8\u53ef\u4ee5\u6709\u6e90\u89e3\u6790\uff0c\u76ee\u7684\u672a\u89e3\u6790\u7b49\u7b49\u7684\u7ec4\u5408\u3002\u5bf9\u4e8e\u4e8c\u5c42\u672a\u89e3\u6790\uff0c\u786c\u4ef6\u672c\u8eab\u53ef\u4ee5\u5c06\u8be5\u62a5\u6587\u5728VLAN\u5185\u5e7f\u64ad\uff0c\u4f46\u662f\u5bf9\u4e8e\u4e09\u5c42\u62a5\u6587\u5730\u5740\u7684\u672a\u89e3\u6790\u62a5\u6587\u786c\u4ef6\u672c\u8eab\u5219\u4e0d\u5bf9\u8be5\u62a5\u6587\u8fdb\u884c\u4efb\u4f55\u7684\u5904\u7406\uff0c\u800c\u4ea7\u751fCPU \u4e2d\u65ad\uff0c\u9760\u8f6f\u4ef6\u6765\u5904\u7406\u3002<\/span><\/p>\n

\n

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\n

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\n

3\uff09\u9a71\u52a8\u4ee3\u7801\u90e8\u5206\u5176\u4e2d\u5173\u952e\u7684\u6838\u5fc3\uff1a<\/span><\/strong><\/p>\n

\n

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\n

fib\uff08 forwarding information base\uff09\u8868\u00a0:\u8fd9\u4e2a\u8868\u7684\u4fe1\u606f\u6765\u6e90\u4e8e \u00a0 ip route table \u4e2d\u7684 \u8def\u7531\u4fe1\u606f\uff0c\u4e4b\u6240\u4ee5\u628a\u5b83\u653e\u5728\u4e86driver \u90e8\u5206\uff0c\u662f\u4e3a\u4e86\u5730\u5740\u89e3\u6790\u4efb\u52a1\u5728\u5b66IP\u5730\u5740\u65f6\u67e5\u627e\u7684\u65b9\u4fbf\u3002<\/span><\/p>\n

\n

\u4e3e\u4f8b\uff1a<\/span><\/p>\n

\n

<\/div><\/p>\n

\n

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\n

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\n

2\uff09\u5730\u5740\u5b66\u4e60\u7ebf\u7a0b\u4e3b\u8981\u7528\u6765\u751f\u6210\u786c\u4ef6\u8f6c\u53d1\u8868\uff08ipfdb table\uff09<\/span><\/p>\n

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\n

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\n

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\n

\u8fd9\u4e2a\u8fc7\u7a0b\u4e5f\u53ef\u4ee5\u5957\u7528\u201c\u4e00\u6b21\u8def\u7531\uff0c\u591a\u6b21\u4ea4\u6362\u201d\u6765\u5f62\u8c61\u7684\u8fdb\u884c\u603b\u7ed3\uff0c\u5728\u4e00\u6b21\u8def\u7531\u4e2d\uff0c\u00a0\u8981\u5229\u7528\u8def\u7531\u8868\u548c ARP \u8868\u6765\u5b66\u4e60IP \u5730\u5740\uff0c\u00a0\u548c\u8f6c\u53d1\u7b2c\u4e00\u4e2a\u62a5\u6587\uff0c\u4ee5\u540e\u7684\u591a\u6b21\u4ea4\u6362\u8fc7\u7a0b\u4e2d\uff0c\u5219\u53ea\u8981\u6709ipfdb table \u5c31\u53ef\u4ee5\u4e86\u3002<\/span><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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