{"id":6486,"date":"2022-03-01T22:18:17","date_gmt":"2022-03-02T06:18:17","guid":{"rendered":"https:\/\/www.xh86.me\/?p=6486"},"modified":"2022-03-01T22:18:17","modified_gmt":"2022-03-02T06:18:17","slug":"%e5%9b%be%e8%a7%a3%e7%bd%91%e7%bb%9c%e8%ae%be%e5%a4%87%e9%80%89%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/www.xh86.me\/?p=6486","title":{"rendered":"\u56fe\u89e3\u7f51\u7edc\u8bbe\u5907\u9009\u578b"},"content":{"rendered":"
\n
<\/section>\n

\u56fe\u89e3\u8fc7\u7f51\u7edc\u8bbe\u5907\u3001\u4e8c\u5c42\u4ea4\u6362\u673a\u3001\u4e09\u5c42\u4ea4\u6362\u673a\u3001\u9632\u706b\u5899\u3001WiFi \uff0c\u5df2\u7ecf\u628a\u6211\u4eec\u5e38\u89c1\u7684\u8bbe\u5907\u4ecb\u7ecd\u4e86\u4e00\u904d\uff0c\u77e5\u9053\u8fd9\u4e9b\u8bbe\u5907\u662f\u5e72\u4ec0\u4e48\u7684\u3002\u4f46\u662f\u5355\u5355\u4e00\u6b3e\u8bbe\u5907\uff0c\u90fd\u6709\u5f88\u591a\u79cd\u54c1\u724c\u3001\u5f88\u591a\u4e2a\u578b\u53f7\u3002\u771f\u8981\u4e70\u8bbe\u5907\u65f6\uff0c\u4f30\u8ba1\u5404\u79cd\u5404\u6837\u7684\u8bbe\u5907\uff0c\u4f1a\u770b\u5f97\u773c\u82b1\u7f2d\u4e71\u3001\u96fe\u91cc\u770b\u82b1\u3002\u4e0b\u9762\u6211\u4eec\u4ecb\u7ecd\u4e0b\u5982\u4f55\u8fdb\u884c\u8bbe\u5907\u9009\u578b\uff0c\u9009\u5230\u6700\u9002\u5408\u81ea\u5df1\u7684\u7f51\u7edc\u8bbe\u5907\u3002<\/p>\n

\n

\u4ea7\u54c1\u7c7b\u578b<\/span><\/h3>\n

\u7f51\u7edc\u4ea7\u54c1\u6709\u8def\u7531\u5668\u3001\u4ea4\u6362\u673a\u3001\u9632\u706b\u5899\u3001\u65e0\u7ebf AP \u7b49\uff0c\u9009\u62e9\u4ea7\u54c1\u7c7b\u578b\u65f6\uff0c\u8981\u8003\u8651\u7f51\u7edc\u4e2d\u662f\u5426\u9700\u8981\uff1f\u662f\u5426\u9700\u8981\u4e00\u53f0\u8fdb\u884c\u8def\u7531\u9009\u62e9\u7684\u8def\u7531\u5668\uff1f\u662f\u5426\u9700\u8981\u6838\u5fc3\u4ea4\u6362\u673a\uff1f\u662f\u5426\u9700\u8981\u8d1f\u8d23\u5b89\u5168\u63a7\u5236\u7684\u9632\u706b\u5899\uff1f\u8fd9\u4e9b\u8bbe\u5907\u5728\u7f51\u7edc\u4e2d\u5982\u4f55\u914d\u7f6e\uff1f<\/p>\n

\u4ea7\u54c1\u7c7b\u578b\uff1a<\/p>\n

    \n
  • \n

    \u8def\u7531\u5668<\/strong><\/p>\n<\/li>\n

  • \n

    \u4e8c\u5c42\u4ea4\u6362\u673a<\/strong><\/p>\n<\/li>\n

  • \n

    \u4e09\u5c42\u4ea4\u6362\u673a<\/strong><\/p>\n<\/li>\n

  • \n

    \u9632\u706b\u5899<\/strong><\/p>\n<\/li>\n

  • \n

    \u65e0\u7ebf AP<\/strong><\/p>\n<\/li>\n

  • \n

    \u8d1f\u8f7d\u5747\u8861<\/strong><\/p>\n<\/li>\n

  • \n

    \u5e26\u5bbd\u63a7\u5236<\/strong><\/p>\n<\/li>\n

  • \n

    \u4ee3\u7406<\/strong><\/p>\n<\/li>\n

  • \n

    ……<\/strong><\/p>\n<\/li>\n<\/ul>\n

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

    \u5728\u65b0\u5efa\u7f51\u7edc\u65f6\uff0c\u53ef\u4ee5\u6839\u636e\u7ec4\u7f51\u4e2d\u7684\u4ea7\u54c1\u7c7b\u578b\u53bb\u9009\u62e9\u5bf9\u5e94\u7684\u4ea7\u54c1\u3002\u5f53\u73b0\u7f51\u4e2d\u9700\u8981\u66ff\u6362\u67d0\u4e9b\u7f51\u7edc\u8bbe\u5907\u65f6\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u76f8\u540c\u7c7b\u578b\u7684\u8bbe\u5907\u3002\u5982\u679c\u6027\u80fd\u8db3\u591f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e09\u5c42\u4ea4\u6362\u673a\u6216\u9632\u706b\u5899\u66ff\u4ee3\u8def\u7531\u5668\u3002\u4e09\u5c42\u4ea4\u6362\u673a\u66ff\u6362\u4e8c\u5c42\u4ea4\u6362\u673a\u4e5f\u662f\u53ef\u4ee5\u7684\u3002\u9009\u62e9\u5b89\u5168\u8bbe\u5907\u65f6\uff0c\u67d0\u4e9b\u9632\u706b\u5899\u6709\u57fa\u4e8e\u5185\u5bb9\u7684\u5b89\u5168\u63a7\u5236\u529f\u80fd\uff0c\u53ef\u4ee5\u8003\u8651\u7edf\u4e00\u4f7f\u7528\u9632\u706b\u5899\u6765\u66ff\u4ee3\u72ec\u7acb\u7684\u9632\u75c5\u6bd2\u8bbe\u5907\u3001URL \u8fc7\u6ee4\u8bbe\u5907\u3001IDS\/IPS \u8bbe\u5907\u7b49\uff0c\u8fbe\u5230\u964d\u4f4e\u6210\u672c\u7684\u76ee\u7684\u3002<\/p>\n

    \u6839\u636e\u9700\u6c42\u9009\u62e9\u8bbe\u5907\u578b\u53f7<\/span><\/h3>\n

    \u786e\u5b9a\u4e86\u4ea7\u54c1\u7c7b\u578b\uff0c\u5c31\u8981\u6839\u636e\u9700\u8981\u7684\u529f\u80fd\uff0c\u9009\u51fa\u5177\u4f53\u7684\u8bbe\u5907\u578b\u53f7\u3002\u4e00\u822c\u4f1a\u8003\u8651\u4e0b\u9762\u8fd9\u4e9b\u65b9\u9762\u3002<\/p>\n

    \u7f51\u7edc\u63a5\u53e3\u4e0e\u63a5\u53e3\u901f\u7387<\/h4>\n
      \n
    • \n

      WAN \u4fa7\u548c LAN \u4fa7\u63a5\u53e3\u6570\u91cf\u662f\u5426\u6ee1\u8db3\u9700\u6c42\u3002RJ-45 \u7684 10\/100\/1000BASE-T \u6216 SFP \u7684 1000BASE-SX \u8fd9\u79cd\uff0c\u63a5\u53e3\u7c7b\u578b\u548c\u63a5\u53e3\u901f\u7387\u662f\u5426\u6ee1\u8db3\u8981\u6c42\u3002<\/p>\n<\/li>\n

    • \n

      \u4f7f\u7528 VLAN \u6216\u865a\u62df\u8def\u7531\u5668\u65f6\uff0c\u5b50\u63a5\u53e3\uff08\u903b\u8f91\u63a5\u53e3\uff09\u7684\u6570\u91cf\u662f\u5426\u6ee1\u8db3\u9700\u6c42\u3002<\/p>\n<\/li>\n

    • \n

      \u4f7f\u7528 IEEE 802.1ad \u7b49\u6c47\u805a\u63a5\u53e3\u65f6\uff0c\u6c47\u805a\u540e\u7684\u5e26\u5bbd\u662f\u5426\u6ee1\u8db3\u9700\u6c42\u3002<\/p>\n<\/li>\n<\/ul>\n

      \u6027\u80fd<\/h4>\n
        \n
      • \n

        \u541e\u5410\u7387\uff08\u4f20\u8f93\u901f\u7387\uff09\u662f\u5426\u8db3\u591f\u3002<\/p>\n<\/li>\n

      • \n

        \u4f7f\u7528 ASIC \u6216 FPGA \u7b49\u786c\u4ef6\u5904\u7406\u7684\u8303\u56f4\u548c\u4f7f\u7528 CPU \u8f6f\u4ef6\u5904\u7406\u7684\u8303\u56f4\u662f\u591a\u5c11\uff0c\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u5904\u7406\u90a3\u4e9b\u6d41\u91cf\u80fd\u591f\u5f97\u5230\u9ad8\u6027\u80fd\uff0c\u5904\u7406\u54ea\u4e9b\u6d41\u91cf\u5f97\u4e0d\u5230\u9ad8\u6027\u80fd\u3002<\/p>\n<\/li>\n

      • \n

        \u5728\u8fdb\u884c\u5185\u5bb9\u626b\u63cf\u65f6\uff0c\u80fd\u626b\u63cf\u591a\u5927\u5bb9\u91cf\u7684\u6587\u4ef6\u3002<\/p>\n<\/li>\n

      • \n

        \u5982\u679c\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u529f\u80fd\uff0c\u8bbe\u5907 CPU \u4f7f\u7528\u7387\u548c\u5185\u5b58\u5360\u7528\u7387\u662f\u5426\u8dd1\u6ee1\u3002<\/p>\n<\/li>\n<\/ul>\n

        \u8f6f\u4ef6\u529f\u80fd<\/h4>\n
          \n
        • \n

          \u652f\u6301\u54ea\u4e9b\u534f\u8bae\uff0c\u6709\u54ea\u4e9b\u72ec\u7acb\u529f\u80fd\u3002<\/p>\n<\/li>\n

        • \n

          \u7f51\u7edc\u529f\u80fd\u3002<\/p>\n<\/li>\n

        • \n

          \u7ba1\u7406\u529f\u80fd\u3002<\/p>\n<\/li>\n

        • \n

          \u62a5\u544a\u529f\u80fd\u3002<\/p>\n<\/li>\n<\/ul>\n

          \u8fc1\u79fb\u4fbf\u6377\u6027<\/h4>\n
            \n
          • \n

            \u66ff\u6362\u8bbe\u5907\u65f6\uff0c\u4f7f\u7528\u73b0\u6709\u3001\u76f8\u540c\u5382\u5546\u7684\u8bbe\u5907\uff0c\u5e76\u4e14\u8fd0\u884c\u76f8\u540c\u64cd\u4f5c\u7cfb\u7edf\u7684\u8bbe\u5907\u66f4\u5bb9\u6613\u8fc1\u79fb\u3002<\/p>\n<\/li>\n<\/ul>\n

            \u552e\u540e\u670d\u52a1<\/h4>\n
              \n
            • \n

              \u4ea7\u54c1\u80fd\u591f\u73b0\u573a\u7ef4\u62a4\u8fd8\u662f\u9700\u8981\u5bc4\u56de\u539f\u5382\u3002<\/p>\n<\/li>\n

            • \n

              \u652f\u6301\u552e\u540e\u670d\u52a1\u7684\u65f6\u95f4\u3002<\/p>\n<\/li>\n<\/ul>\n

              \u7f51\u7edc\u5ef6\u8fdf<\/span><\/h3>\n

              \u8def\u7531\u5668\u8fd9\u7c7b\u7f51\u7edc\u8bbe\u5907\uff0c\u90fd\u4f1a\u6709\u8f6c\u53d1\u62a5\u6587\u7684\u64cd\u4f5c\uff0c\u62a5\u6587\u79bb\u5f00\u59cb\u53d1\u5730\uff0c\u5411\u76ee\u7684\u5730\u4f20\u8f93\u7684\u8fc7\u7a0b\u4e2d\uff0c\u603b\u4f1a\u6709\u5ef6\u8fdf<\/strong>\uff08 delay \uff09\u4ea7\u751f\u3002<\/p>\n

              \u5728\u7f51\u7edc\u4e2d\u4f20\u8f93\u58f0\u97f3\u548c\u89c6\u9891\u7b49\u5b9e\u65f6\u6d41\u91cf\u65f6\uff0c\u9700\u8981\u6536\u96c6\u5404\u4e2a\u8def\u7531\u5668\u4e4b\u95f4\u5ef6\u8fdf\u7684\u53c2\u6570\uff0c\u5fc5\u987b\u51cf\u5c11\u7aef\u5230\u7aef<\/strong>\uff08 end to end \uff09\u7684\u7f51\u7edc\u5ef6\u8fdf\u4f5c\u4e3a\u6574\u4e2a\u7f51\u7edc\u8bbe\u8ba1\u7684\u91cd\u8981\u76ee\u6807\u3002<\/p>\n

              ITU-T \u63a8\u8350\u7684 G.114 \u628a\u5ef6\u8fdf\u5b9a\u4e49\u4e09\u4e2a\u7c7b\u578b\u3002<\/p>\n

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

              \u5ef6\u8fdf\u7684\u79cd\u7c7b\u3002<\/p>\n

                \n
              • \n

                \u7aef\u5230\u7aef\u5ef6\u8fdf<\/strong>\uff08 end to end delay \uff09\uff1a\u62a5\u6587\u4ece\u53d1\u9001\u6e90\u53d1\u51fa\u540e\uff0c\u5230\u8fbe\u76ee\u7684\u5730\u6240\u9700\u7684\u65f6\u95f4\u3002\u62a5\u6587\u5728\u4e2d\u9014\u7ecf\u8fc7\u7684\u7f51\u7edc\u8bbe\u5907\u6570\u91cf\u8d8a\u591a\uff0c\u8fd9\u4e2a\u503c\u5c31\u8d8a\u5927\u3002<\/p>\n<\/li>\n

              • \n

                \u5904\u7406\u5ef6\u8fdf<\/strong>\uff08 processing delay \uff09\uff1a\u4ece\u62a5\u6587\u8fdb\u5165\u8bbe\u5907\u5165\u63a5\u53e3\uff0c\u5230\u8fdb\u5165\u51fa\u63a5\u53e3\u7684\u961f\u5217\u7684\u65f6\u95f4\uff0c\u4e00\u822c\u53ea\u6709\u51e0\u5fae\u79d2\u3002<\/p>\n<\/li>\n<\/ul>\n

                <\/div><\/span><\/p>\n
                  \n
                • \n

                  \u5206\u7247\u5ef6\u8fdf<\/strong>\uff08 packetization delay \uff09\uff1a\u6570\u636e\u5206\u6210\u591a\u4e2a\u90e8\u5206\u4f20\u8f93\uff0c\u5728\u8fdb\u884c\u7f16\u7801\u3001\u538b\u7f29\u3001\u5c01\u88c5\u7b49\u64cd\u4f5c\u7684\u65f6\u95f4\uff0c\u4e00\u822c\u5728\u51e0\u5341\u6beb\u79d2\u3002<\/p>\n<\/li>\n

                • \n

                  \u961f\u5217\u5ef6\u8fdf<\/strong>\uff08 queuing delay \uff09\uff1a\u62a5\u6587\u5728\u51fa\u63a5\u53e3\u961f\u5217\u505c\u7559\u7684\u65f6\u95f4\u3002\u5728 QoS \u63a7\u5236\u65f6\uff0c\u4f18\u5148\u7ea7\u4f4e\u7684\u62a5\u6587\u5728\u961f\u5217\u603b\u505c\u7559\u7684\u65f6\u95f4\u957f\uff0c\u4e5f\u5c31\u662f\u5ef6\u8fdf\u5927\uff0c\u4e00\u822c\u5728\u51e0\u6beb\u79d2\u3002<\/p>\n<\/li>\n<\/ul>\n

                  <\/div><\/span><\/p>\n
                    \n
                  • \n

                    \u4e32\u884c\u5ef6\u8fdf<\/strong>\uff08 serialization delay \uff09\uff1a\u62a5\u6587\u5728\u63a5\u53e3\u53d1\u9001\u65f6\uff0c\u8fdb\u884c\u7535\u6c14\u3001\u5149\u3001\u7535\u78c1\u6ce2\u7b49\u4fe1\u53f7\u8f6c\u6362\u7684\u65f6\u95f4\uff0c\u5177\u4f53\u6570\u503c\u901a\u8fc7 \u201c \u62a5\u6587\u5c3a\u5bf8 \u00f7 \u5e26\u5bbd \u201d \u516c\u5f0f\u8ba1\u7b97\u3002\u901f\u7387\u8d8a\u9ad8\u7684\u63a5\u53e3\uff0c\u4e32\u884c\u5ef6\u8fdf\u8d8a\u4f4e\u300264 \u5b57\u8282\u7684\u62a5\u6587\u4f7f\u7528 64kbit\/s \u5e26\u5bbd\u8fdb\u884c\u4f20\u8f93\u65f6\uff0c\u4e32\u884c\u8fc7\u7a0b\u65f6\u95f4\u662f 8 \u6beb\u79d2\u3002<\/p>\n<\/li>\n<\/ul>\n

                    <\/div><\/span><\/p>\n
                      \n
                    • \n

                      \u4f20\u64ad\u5ef6\u8fdf<\/strong>\uff08 propagation delay \uff09\uff1a\u4fe1\u53f7\u901a\u8fc7\u7ebf\u7f06\u6216\u65e0\u7ebf\u7535\u6ce2\u7b49\u4ecb\u8d28\u4f20\u8f93\uff0c\u5230\u8fbe\u4e0b\u4e00\u4e2a\u8bbe\u5907\u7684\u65f6\u95f4\uff0c\u4f9d\u8d56\u4ecb\u8d28\u7684\u4f20\u8f93\u901f\u5ea6\u3002\u5149\u7ea4\u4e00\u822c 1km \u7684\u8ddd\u79bb\u9700\u8981 6 \u5fae\u79d2\u3002<\/p>\n<\/li>\n<\/ul>\n

                      <\/div><\/span><\/p>\n
                        \n
                      • \n

                        \u7f51\u7edc\u5ef6\u8fdf<\/strong>\uff08 network delay \uff09\uff1a\u7ecf\u8fc7 WAN \u548c\u4e92\u8054\u7f51\u8fdb\u884c\u901a\u4fe1\u65f6\uff0c\u62a5\u6587\u7ecf\u8fc7\u8fd9\u4e9b\u7f51\u7edc\u9700\u8981\u7684\u65f6\u95f4\u3002IP \u7535\u8bdd\u7684\u7f51\u7edc\u4e00\u822c\u5e73\u5747\u5ef6\u8fdf\u9700\u8981\u5728 70 \u6beb\u79d2\u4ee5\u4e0b\u3002<\/p>\n<\/li>\n<\/ul>\n

                        \u65f6\u5ef6<\/h4>\n

                        \u7f51\u7edc\u8bbe\u5907\u4ece\u6536\u5230\u6570\u636e\u540e\uff0c\u5230\u518d\u6b21\u53d1\u9001\u6570\u636e\u7684\u5ef6\u8fdf\u65f6\u95f4\u53eb\u505a\u65f6\u5ef6<\/strong>\uff08 latency \uff09\u3002\u65f6\u5ef6\u8d8a\u5c0f\uff0c\u8bf4\u660e\u8bbe\u5907\u5904\u7406\u62a5\u6587\u7684\u80fd\u529b\u8d8a\u5f3a\u3002\u65f6\u5ef6\u76f8\u5f53\u4e8e \u201c \u5904\u7406\u5ef6\u8fdf + \u961f\u5217\u5ef6\u8fdf + \u4e32\u884c\u5ef6\u8fdf \u201d \u7684\u65f6\u95f4\u3002<\/p>\n

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

                        \u541e\u5410\u7387\u6d4b\u8bd5\u7684\u7ed3\u6784\u4e2d\uff0c\u4ece\u6d4b\u8bd5\u4eea\u53d1\u9001\u7684\u62a5\u6587\u7ecf\u8fc7\u8def\u7531\u5668\u540e\uff0c\u518d\u8fd4\u56de\u6d4b\u8bd5\u7684\u65f6\u95f4\uff0c\u6d4b\u8bd5\u4eea\u5668\u53eb\u505a\u65f6\u5ef6\u3002\u7f51\u7edc\u8bbe\u5907\u7684\u65f6\u5ef6\u4e00\u822c\u5728\u51e0\u5fae\u79d2\u3002<\/p>\n

                        \u6296\u52a8<\/h4>\n

                        \u62a5\u6587\u53d1\u9001\u65f6\uff0c\u662f\u6709\u4e00\u5b9a\u65f6\u95f4\u95f4\u9694\u7684\u3002\u8fd9\u4e2a\u65f6\u95f4\u95f4\u9694\u5728\u5b9e\u9645\u4f20\u8f93\u4e2d\uff0c\u53d8\u957f\u6216\u53d8\u77ed\u7684\u73b0\u8c61\u53eb\u505a\u6296\u52a8<\/strong>\uff08 jitter \uff09\u3002\u6bd4\u5982\uff1a\u53d1\u9001\u6e90\u6bcf\u9694 5 \u6beb\u79d2\u53d1\u9001\u62a5\u6587\uff0c\u63a5\u6536\u65b9\u6536\u5230\u7684\u5b9e\u9645\u65f6\u95f4\u95f4\u9694\u5374\u662f 4 \u30013 \u30016 \u30015 \u30017 \u6beb\u79d2\u8fd9\u79cd\u4e0d\u505c\u53d8\u5316\u7684\u7ed3\u679c\u3002VoIP \u548c\u6d41\u5a92\u4f53\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u901a\u8fc7\u7f13\u5b58\u6765\u7f13\u89e3\u90e8\u5206\u6296\u52a8\uff0c\u4f46\u6296\u52a8\u8fc7\u5927\u5c31\u4f1a\u5bfc\u81f4\u58f0\u97f3\u3001\u753b\u9762\u7a81\u7136\u4e2d\u65ad\u3002\u5728\u8fdb\u884c\u5b9e\u65f6\u53cc\u5411\u6d41\u5a92\u4f53\u89c6\u9891\u4f1a\u8bae\u65f6\uff0c\u63a8\u8350\u5ef6\u8fdf\u5728 150 \u6beb\u79d2\u4ee5\u5185\uff0c\u6296\u52a8\u5728 35 \u6beb\u79d2\u4ee5\u5185\u7684\u7f51\u7edc\u73af\u5883\u3002\u5bf9\u6bd4\u5355\u5411\u89c6\u5c4f\u6d41\u5a92\u4f53\uff0c\u7531\u4e8e\u5e94\u7528\u7a0b\u5e8f\u63a5\u6536\u7f13\u5b58\uff0c\u80fd\u591f\u5904\u7406\u90e8\u5206\u5ef6\u8fdf\u548c\u6296\u52a8\uff0c\u56e0\u6b64\u5141\u8bb8\u53cc\u5411 10 \u500d\u4ee5\u4e0a\u7684\u7f51\u7edc\u5ef6\u8fdf\u65f6\u95f4\u3002<\/p>\n

                        \u4e22\u5305<\/h4>\n

                        \u7f51\u7edc\u4e0a\u4f20\u8f93\u7684\u62a5\u6587\u6ca1\u6709\u5230\u8fbe\u76ee\u7684\u5730\u7684\u73b0\u8c61\u53eb\u505a\u4e22\u5305<\/strong>\u3002\u4e22\u5305\u901a\u8fc7\u62a5\u6587\u4e22\u5f03\u7387\u7684\u767e\u5206\u6bd4\u6765\u8868\u793a\u3002\u901a\u5e38 IP \u7535\u8bdd\u7f51\u7edc\u7684\u62a5\u6587\u4e22\u5931\u7387\u8981\u5728 0.1% \u4ee5\u4e0b\u3002<\/p>\n

                        \u5f80\u8fd4\u65f6\u95f4<\/h4>\n

                        \u53d1\u9001\u6e90\u53d1\u9001\u7684\u62a5\u6587\uff0c\u5230\u8fbe\u76ee\u7684\u5730\u540e\uff0c\u76ee\u7684\u5730\u751f\u6210\u54cd\u5e94\u62a5\u6587\uff0c\u8fd4\u56de\u53d1\u9001\u6e90\uff0c\u76f4\u5230\u53d1\u9001\u6e90\u63a5\u6536\u5230\u54cd\u5e94\u62a5\u6587\u7684\u8fd9\u4e2a\u8fc7\u7a0b\u7684\u65f6\u95f4\u53eb\u505a\u5f80\u8fd4\u65f6\u95f4<\/strong>\uff08 RTT \uff0cRound Trip Time \uff09\u3002\u5f80\u8fd4\u65f6\u95f4\u662f\u901a\u8fc7 ping \u547d\u4ee4\u53d1\u9001 ICMP Echo Request \u6d88\u606f\uff0c\u518d\u6536\u5230 ICMP Echo Reply \u6d88\u606f\u6765\u68c0\u67e5\uff0c\u5355\u4f4d\u662f\u6beb\u79d2\u3002<\/p>\n

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

                        \u5982\u679c\u4e92\u8054\u7f51\u53d1\u751f\u5ef6\u8fdf\u8fc7\u957f\u7684\u95ee\u9898\uff0c\u9700\u8981\u901a\u8fc7 QoS \u8bbe\u5907\u6216\u8005\u8def\u7531\u5668\u7684 QoS \u529f\u80fd\u5bf9\u62a5\u6587\u8f6c\u53d1\u8fdb\u884c\u4f18\u5148\u7ea7\u63a7\u5236\uff0c\u4fdd\u969c\u5b9e\u65f6\u6027\u9ad8\u7684\u5e94\u7528\u7a0b\u5e8f\u4f18\u5148\u8f6c\u53d1\uff0c\u5c3d\u53ef\u80fd\u51cf\u5c11\u961f\u5217\u5ef6\u8fdf\u3002<\/p>\n

                        \u6027\u80fd\u6d4b\u8bd5<\/span><\/h3>\n

                        \u7f51\u7edc\u8bbe\u5907\u7684\u6027\u80fd\u53ef\u4ee5\u901a\u8fc7\u6d4b\u8bd5\u4eea\u5668\u8fdb\u884c\u7edf\u8ba1\u6d4b\u8bd5\u3002\u4ea7\u54c1\u76ee\u5f55\u91cc\uff0c\u4f1a\u6709 bit\/s<\/strong> \u548c pps<\/strong> \u7b49\u53c2\u6570\uff0c\u6709\u4e9b\u5382\u5546\u8fd8\u4f1a\u8bf4\u660e\u662f\u5728\u600e\u6837\u7684\u6d4b\u8bd5\u73af\u5883\u4e0b\u5f97\u5230\u7684\u8fd9\u4e2a\u6570\u503c\u3002<\/p>\n

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

                        \u6d4b\u8bd5\u5bf9\u8c61\u53eb\u505a DUT<\/strong>\uff08 Device Under Test \uff09\u3002\u6d4b\u8bd5\u4eea\u5668\u5728\u53d1\u9001\u7aef\u53e3<\/strong>\uff08 Tx \uff09\u9010\u6b65\u589e\u52a0\u53d1\u9001\u5230\u8def\u7531\u5668\u7684\u62a5\u6587\u6570\u91cf\uff0c\u7136\u540e\u5728\u63a5\u6536\u7aef\u53e3<\/strong>\uff08 Rx \uff09\u6d4b\u8bd5 DUT \u8fd4\u56de\u7684\u62a5\u6587\u6570\u91cf\u3002\u5f53\u5230\u8fbe DUT \u7684\u6027\u80fd\u6781\u9650\u65f6\uff0cDUT \u4e0a\u5c31\u4f1a\u53d1\u751f\u4e22\u5305\u7684\u73b0\u8c61\uff0c\u6d4b\u8bd5\u4eea\u5668\u63a5\u6536\u7684\u62a5\u6587\u6570\u5c31\u4f1a\u51cf\u5c11\u3002<\/p>\n

                        DUT \u4e0d\u53d1\u751f\u4e22\u5305\u800c\u6301\u7eed\u7684\u4f20\u8f93\u80fd\u529b\u6307\u6807\u53eb\u505a NDR<\/strong>\uff08 non-drop rate \uff09\uff0c\u4ea7\u54c1\u76ee\u5f55\u4e2d\u4e00\u822c\u53eb\u505a\u6700\u5927\u541e\u5410\u7387<\/strong>\u3002<\/p>\n

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

                        RFC2544 \u4e2d\u5b9a\u4e49\u4e86\u7f51\u7edc\u8bbe\u5907\u541e\u5410\u7387\u7684\u6d4b\u8bd5\u65b9\u6cd5\uff0c\u63a8\u8350\u4e86\u6d4b\u8bd5\u65f6\u4f7f\u7528\u7684\u6570\u636e\u5e27\u5927\u5c0f\u3002\u6bd4\u5982\u5728\u4ee5\u592a\u7f51\u73af\u5883\u4e2d\uff0c\u63a8\u8350\u4f7f\u7528 64 \u3001128 \u3001256 \u3001512 \u30011024 \u30011280 \u30011518 \u5b57\u8282\u5927\u5c0f\u7684\u6570\u636e\u5e27\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n

                        \u6d4b\u8bd5\u8def\u7531\u5668\u65f6\uff0c\u6d4b\u8bd5\u4eea\u5668\u7ecf\u5e38\u6a21\u62df\u4e92\u8054\u7f51\u5b9e\u9645\u901a\u4fe1\u6d41\u91cf\u3001\u53eb\u505a IMIX<\/strong>\uff08 Internet Mix \uff09\u7684\u5404\u79cd\u6570\u636e\u5e27\u7ec4\u5408\u6765\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n

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

                        \u6d4b\u8bd5\u4eea\u5668\u901a\u8fc7\u751f\u6210\u4e8c\u5c42\u81f3\u4e03\u5c42\u7684\u5404\u79cd\u62a5\u6587\uff0c\u80fd\u591f\u6a21\u62df\u767e\u4e07\u53f0\u5ba2\u6237\u7aef\u8fde\u63a5\u7684\u7f51\u7edc\u73af\u5883\u3002\u901a\u8fc7\u6d4b\u8bd5\u4eea\u5668\u7684\u6d4b\u8bd5\uff0c\u80fd\u591f\u660e\u786e\u7f51\u7edc\u8bbe\u5907\u7684\u6700\u5927\u541e\u5410\u7387\u3001\u6700\u5927\u5728\u7ebf\u4f1a\u8bdd\u6570\u7b49\u5404\u9879\u6027\u80fd\u6307\u6807\u6570\u636e\u3002<\/p>\n

                        \u6700\u5927\u541e\u5410\u7387<\/h4>\n

                        \u6700\u5927\u541e\u5410\u7387<\/strong>\uff0c\u5355\u4f4d Mbit\/s<\/strong> \uff0c\u662f\u6307\u8fde\u7eed\u5904\u7406\u957f\u5ea6\u4e3a 1518 \u5b57\u8282\u7684\u6570\u636e\u5e27\u7684\u541e\u5410\u7387\u30021518 \u5b57\u8282\u4e2d\uff0c\u53bb\u6389 18 \u5b57\u8282\u7684\u5e27\u5934\u90e8\uff0c\u5269\u4e0b 1500 \u5b57\u8282\u7684 IP \u62a5\u6587\u3002\u518d\u53bb\u6389 20 \u5b57\u8282\u7684 IP \u5934\u90e8\uff0c\u5269\u4e0b 1480 \u5b57\u8282\u662f IP \u6570\u636e\u6709\u6548\u8f7d\u8377\uff0c\u6700\u7ec8\u5904\u7406\u7684\u5c31\u662f\u8fd9 1480 \u5b57\u8282\u3002<\/p>\n

                        \u8def\u7531\u5668\u5904\u7406\u4e0d\u662f\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff0c\u800c\u662f\u4ee5\u62a5\u6587\uff08\u6570\u636e\u5e27\uff09\u4e3a\u5355\u4f4d\u8fdb\u884c\u8f6c\u53d1\u3002\u56e0\u6b64\uff0c\u8def\u7531\u5668 1 \u79d2\u5185\u80fd\u5904\u7406\u591a\u5c11\u4e2a\u62a5\u6587\u7684\u6307\u6807 pps \u7684\u6700\u5927\u503c\uff0c\u52a0\u4e0a 1518 \u5b57\u8282\u6570\u5f97\u5230\u7684\u6570\u503c\uff0c\u5c31\u662f\u8def\u7531\u5668\u7684\u6700\u5927\u541e\u5410\u7387\u3002<\/p>\n

                        \u4ea7\u54c1\u6027\u80fd\u4f1a\u6839\u636e IP \u6570\u636e\u5185\u5bb9\u7684\u4e0d\u540c\u800c\u53d1\u751f\u53d8\u5316\uff0c\u5bf9\u6bd4 TCP \uff0c\u4f7f\u7528 UDP \u8fd9\u79cd\u5934\u90e8\u7b80\u5355\u7684\u62a5\u6587\u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u80fd\u591f\u5f97\u5230\u66f4\u597d\u7684\u541e\u5410\u7387\u6570\u503c\u3002<\/p>\n

                        \u4ea4\u6362\u673a\u6027\u80fd<\/span><\/h3>\n

                        \u4e8c\u5c42\u4ea4\u6362\u673a\u548c\u4e09\u5c42\u4ea4\u6362\u673a\u7684\u6570\u636e\u5e27\u8f6c\u53d1\u662f\u901a\u8fc7 ASIC \u5b8c\u6210\uff0c\u56e0\u6b64\u4ea7\u54c1\u76ee\u5f55\u91cc\u7684\u4ea4\u6362\u5bb9\u91cf\u548c\u4ea4\u6362\u80fd\u529b\uff0c\u53ef\u4ee5\u4eba\u4e3a\u662f\u8fd9\u4e2a\u8bbe\u5907\u7684\u5b9e\u9645\u6027\u80fd\u6307\u6807\u3002<\/p>\n

                        \u4ea4\u6362\u5bb9\u91cf<\/h4>\n

                        \u4ea4\u6362\u5bb9\u91cf<\/strong>\uff0c\u53c8\u53eb\u505a\u80cc\u677f\u5bb9\u91cf\uff0c\u662f\u4ea4\u6362\u673a\u5185\u90e8\u6570\u636e\u4f20\u8f93\u7684\u5e26\u5bbd\u5bb9\u91cf\u3002\u5f53\u6d41\u91cf\u9ad8\u4e8e\u4ea4\u6362\u673a\u5bb9\u91cf\u65f6\uff0c\u4ea4\u6362\u673a\u5c31\u4f1a\u7531\u4e8e\u7f13\u5b58\u4e0d\u8db3\u6216\u5185\u90e8\u5e26\u5bbd\u4e0d\u591f\u800c\u65e0\u6cd5\u5904\u7406\uff0c\u5bfc\u81f4\u6570\u636e\u5e27\u4e22\u5931\u3001\u4e22\u5305\u7387\u4e0a\u5347\u7b49\u73b0\u8c61\u3002<\/p>\n

                        \u4ea4\u6362\u80fd\u529b<\/h4>\n

                        \u9664\u4e86 bit\/s \u8868\u793a\u4ea4\u6362\u673a\u7684\u5bb9\u91cf\u5916\uff0cpps\uff08\u5305\u6bcf\u79d2\uff09\u4e5f\u80fd\u7528\u6765\u8868\u793a\u4ea4\u6362\u673a\u7684\u4ea4\u6362\u80fd\u529b<\/strong>\uff0c\u5373\u5355\u4f4d\u65f6\u95f4\u5185\u80fd\u591f\u5904\u7406\u7684\u6570\u636e\u5e27\u6570\u76ee\u3002<\/p>\n

                        \u4ea4\u6362\u673a\u901a\u8fc7\u67e5\u770b\u6570\u636e\u5e27\u5934\u90e8\uff0c\u5148\u786e\u8ba4\u76ee\u7684 MAC \u5730\u5740\uff0c\u5e76\u6821\u9a8c\u6570\u636e\u5e27\u5c3e\u90e8\u662f\u5426\u5f02\u5e38\uff0c\u6700\u540e\u67e5\u770b\u8bbf\u95ee\u63a7\u5236\u5217\u8868\u662f\u5426\u6709\u5339\u914d\u9879\uff0c\u5982\u679c\u6709\u5339\u914d\u9879\uff0c\u5c31\u5bf9\u6570\u636e\u5e27\u8fdb\u884c\u8fc7\u6ee4\u6216\u8f6c\u53d1\u5904\u7406\u3002\u968f\u7740\u6570\u636e\u5e27\u6570\u76ee\u589e\u52a0\uff0c\u4ea4\u6362\u673a\u5904\u7406\u7684\u6570\u91cf\u4e5f\u968f\u4e4b\u589e\u5927\uff0c\u8def\u7531\u5668\u4e5f\u662f\u8fd9\u6837\u3002\u6240\u4ee5\uff0c\u5904\u7406\u6d41\u91cf\u7684 bit\/s \u76f8\u540c\uff0c\u6570\u636e\u5e27\u8d8a\u5c0f\uff0c\u5904\u7406\u7684\u5de5\u4f5c\u91cf\u8d8a\u5927\uff0c\u7cfb\u7edf\u8d1f\u8f7d\u4e5f\u968f\u4e4b\u53d8\u5927\u3002<\/p>\n

                        \u4ee5\u592a\u7f51\u6570\u636e\u5e27\u6700\u5c0f\u662f 64 \u5b57\u8282\uff0c\u52a0\u4e0a\u524d\u5bfc\u7801\u548c SFD\uff08\u5e27\u5934\u5b9a\u754c\u7b26\uff09\u7684 8 \u5b57\u8282\uff0c\u6570\u636e\u5e27\u4e4b\u95f4\u7684 IFG\uff08\u6570\u636e\u5e27\u95f4\u9694\uff0912 \u5b57\u8282\uff0c\u4e00\u5171 84 \u5b57\u8282\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u4ea4\u6362\u673a\u5728\u8f6c\u53d1\u4e00\u4e2a\u6570\u636e\u5e27\u65f6\uff0c\u9700\u8981\u5904\u7406 672 bit \u7684\u6570\u636e\u3002<\/p>\n

                        \u7406\u8bba\u7684\u6700\u5927\u7ebf\u8def\u901f\u5ea6\uff0c\u4e5f\u53eb\u505a\u7ebf\u901f<\/strong>\u3002\u5bf9\u4e8e 1000Mbit\/s \u7684\u4ee5\u592a\u7f51\u800c\u8a00\uff0c\u7ebf\u901f\u662f 1000000000 bit\/s \u00f7 672 bit = 1488000 pps<\/code><\/span> \uff0c\u4e5f\u5c31\u662f 1.488 Mbit\/s \u3002\u4e07\u5146\u4ee5\u592a\u7f51\u7684\u7ebf\u901f\u662f 14880000 pps\uff08 14.88 Mbit\/s \uff09\u3002<\/p>\n

                        \u4ea4\u6362\u673a\u662f\u7531\u591a\u4e2a\u63a5\u53e3\u7ec4\u6210\u3002\u5982\u679c\u4e00\u53f0\u4ea4\u6362\u673a\u6709 24 \u4e2a 10\/100\/1000BASE-T \u7684\u63a5\u53e3\uff0c\u90a3\u4e48\u5c31\u6709 24 \u00d7 1.488Mbit\/s = 35.712Mpps<\/code><\/span> \u7684\u4ea4\u6362\u80fd\u529b\u3002\u5982\u679c\u4ea4\u6362\u5bb9\u91cf\u5c0f\u4e8e\u8fd9\u4e2a\u503c\uff0c\u5c31\u4f1a\u53d1\u751f\u963b\u585e\uff0c\u5bfc\u81f4\u6240\u6709\u7684\u63a5\u53e3\u65e0\u6cd5\u8fbe\u5230\u7406\u8bba\u7684\u6700\u5927\u7ebf\u901f\u3002<\/p>\n

                        \u5b9e\u9645\u4e0a\uff0c\u5728\u4ea4\u6362\u673a\u4e0a\u4f20\u8f93\u7684\u5927\u591a\u662f TCP \u6216 UDP \u7684\u5e94\u7528\u7a0b\u5e8f\u6570\u636e\u3002\u5728 UDP \u4e2d\uff0c\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u7684\u62a5\u6587\uff0c\u4e00\u822c\u957f\u5ea6\u5728 100 ~ 300<\/code><\/span> \u5b57\u8282\u4e4b\u95f4\u624d\u80fd\u8fdb\u884c\u901a\u4fe1\u3002\u800c\u5728 TCP \u4e2d\uff0c\u6709\u7a97\u53e3\u5c3a\u5bf8\u7b49\u5e26\u5bbd\u63a7\u5236\uff0c\u5b9e\u9645\u7684\u901f\u7387\u5f80\u5f80\u8fbe\u4e0d\u5230\u7406\u8bba\u7ebf\u901f\u6c34\u5e73\u3002<\/p>\n

                        MAC \u8868\u5bb9\u91cf<\/h4>\n

                        \u4e8c\u5c42\u4ea4\u6362\u673a\u4f7f\u7528 MAC \u8868<\/strong>\u7ba1\u7406 MAC \u5730\u5740\uff0c\u4e09\u5c42\u4ea4\u6362\u673a\u8fd8\u4f1a\u4f7f\u7528\u4e09\u5c42\u8868\u6765\u7ba1\u7406 IP \u5730\u5740\u3002\u5982\u679c\u8868\u9879\u8d85\u51fa\u4e86\u5bb9\u7eb3\u7684\u6570\u91cf\uff0c\u90a3\u4e48\u8bbe\u5907\u5c31\u65e0\u6cd5\u6b63\u5e38\u8f6c\u53d1\u5904\u7406\uff0c\u9020\u6210\u4e22\u5305\u7684\u7ed3\u679c\u3002\u5728\u5bf9\u8bbe\u5907\u6027\u80fd\u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u8981\u5bf9\u62a5\u6587\u7684\u5730\u5740\u6570\u91cf\u8fdb\u884c\u9650\u5236\uff0c\u9650\u5236\u5728 MAC \u8868\u652f\u6301\u7684\u8303\u56f4\u5185\u3002<\/p>\n

                        \u5e7f\u64ad\u98ce\u66b4<\/h4>\n

                        \u5e7f\u64ad\u98ce\u66b4<\/strong>\uff08 broadcast storm \uff09\u662f\u591a\u4e2a\u4ea4\u6362\u673a\u8fde\u63a5\u6210\u56de\u73af\uff0c\u6570\u636e\u5e27\u4e0d\u505c\u7684\u6765\u56de\u8f6c\u53d1\u7684\u73b0\u8c61\u3002\u8fd9\u79cd\u73b0\u8c61\u4f1a\u9020\u6210\u7f51\u7edc\u5e26\u5bbd\u3001\u4ea4\u6362\u673a\u8d44\u6e90\u7684\u8fc7\u5ea6\u6d88\u8017\uff0c\u6700\u7ec8\u5bfc\u81f4\u6574\u4e2a\u7f51\u7edc\u7684\u762b\u75ea\u3002\u4f7f\u7528\u751f\u6210\u6811\u529f\u80fd\uff0c\u53ef\u4ee5\u907f\u514d\u8fd9\u4e2a\u95ee\u9898\u3002\u751f\u6210\u6811\u901a\u8fc7 NDP \u7aef\u53e3\u7684\u5173\u95ed\u6765\u89e3\u51b3\u7f51\u7edc\u7684\u56de\u73af\u95ee\u9898\u3002\u53e6\u5916\uff0c\u9047\u5230 DoS \u653b\u51fb\u3001\u64cd\u4f5c\u7cfb\u7edf\u51fa\u73b0 bug \u6216 NIC \u51fa\u73b0\u6545\u969c\u5bfc\u81f4\u751f\u6210\u6811\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u65f6\uff0c\u540c\u6837\u4e5f\u4f1a\u4ea7\u751f\u5e7f\u64ad\u98ce\u66b4\u3002<\/p>\n

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

                        \u8fd9\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ea4\u6362\u673a\u7684\u5e7f\u64ad\u98ce\u66b4\u63a7\u5236<\/strong>\uff08 storm-control \uff09\u529f\u80fd\u6765\u907f\u514d\u8fd9\u4e2a\u73b0\u8c61\u3002\u5e7f\u64ad\u98ce\u66b4\u63a7\u5236\u529f\u80fd\u7684\u539f\u7406\u662f\u5728\u7aef\u53e3\u76d1\u63a7\u6570\u636e\u5e27\uff0c\u5982\u679c\u6570\u636e\u5e27\u7684\u6570\u91cf\u8d85\u8fc7\u4e86\u9884\u5b9a\u7684\u4e0a\u9650\u503c\uff0c\u5c31\u4f1a\u628a\u8d85\u8fc7\u4e0a\u9650\u503c\u7684\u90e8\u5206\u4e22\u5f03\u3002\u6570\u636e\u5e27\u4e0a\u9650\u503c\u4f7f\u7528 pps \u4e3a\u5355\u4f4d\uff0c\u80fd\u591f\u5206\u522b\u5bf9\u5355\u64ad\u3001\u591a\u64ad\u3001\u5e7f\u64ad\u8fdb\u884c\u5b9a\u4e49\u548c\u914d\u7f6e\u3002<\/p>\n

                        \u5982\u679c\u6ca1\u6709\u56de\u73af\u72b6\u6001\uff0c\u5e7f\u64ad\u5e27\u53ea\u4f1a\u8f6c\u53d1\u5230\u5e7f\u64ad\u57df\u5185\u7684\u6240\u6709\u7ec8\u7aef\u3002\u76f8\u53cd\uff0c\u5982\u679c\u7f51\u7edc\u5b58\u5728\u56de\u73af\uff0c\u5e7f\u64ad\u5e27\u4f1a\u6c38\u8fdc\u5728\u56de\u73af\u5185\u5faa\u73af\u8f6c\u53d1\uff0c\u5bfc\u81f4\u6570\u636e\u5e27\u6570\u91cf\u8d8a\u6765\u8d8a\u591a\uff0c\u6700\u7ec8\u6574\u4e2a\u7f51\u7edc\u7684\u5e26\u5bbd\u88ab\u5e7f\u64ad\u5e27\u6d88\u8017\u6b86\u5c3d\u3002<\/p>\n

                        \u8def\u7531\u5668\u6027\u80fd<\/span><\/h3>\n

                        \u8def\u7531\u5668\u6027\u80fd\u662f\u7528\u5355\u4f4d\u65f6\u95f4\u5185\u7684\u8f6c\u53d1\u80fd\u529b\u6765\u8868\u793a\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u541e\u5410\u7387<\/strong>\uff08 throughput \uff09\u8868\u793a\u3002\u5355\u4f4d bit\/s\uff08\u6bd4\u7279\u6bcf\u79d2\uff09\u6765\u8868\u793a\u541e\u5410\u7387\uff0c\u4e5f\u4f1a\u4f7f\u7528 pps\uff08\u62a5\u6587\u6bcf\u79d2\uff09\u6765\u8868\u793a\u541e\u5410\u7387\u3002<\/p>\n

                        pps \u6027\u80fd\u76f8\u540c\u7684\u8def\u7531\u5668\uff0c\u8f6c\u53d1\u7684\u62a5\u6587\u8d8a\u5927\uff0c\u8def\u7531\u5668\u7684 bit\/s \u503c\u5c31\u8d8a\u9ad8\u3002\u6bd4\u5982\uff0c\u5904\u7406\u80fd\u529b\u662f 100 pps \u7684\u8def\u7531\u5668\uff0c\u5904\u7406 64 \u5b57\u8282\uff08 512 bit\uff09\u62a5\u6587\u65f6\uff0c\u901f\u7387\u662f 51.2 kbit\/s \uff0c\u4f46\u5728\u5904\u7406 1500 \u5b57\u8282\uff08 12000 bit\uff09\u7684\u62a5\u6587\u65f6\uff0c\u901f\u7387\u8fbe\u5230 1.2 Mbit\/s \u3002<\/p>\n

                        \u9632\u706b\u5899\u6027\u80fd<\/span><\/h3>\n

                        \u540c\u65f6\u5728\u7ebf\u4f1a\u8bdd\u6570<\/h4>\n

                        \u9632\u706b\u5899\u4f7f\u7528\u4f1a\u8bdd\u8868\u7ba1\u7406\u4f1a\u8bdd\uff0c\u4ee5\u4f1a\u8bdd\u4e3a\u5355\u4f4d\u8fdb\u884c\u6d41\u91cf\u7684\u63a7\u5236\u3002\u4f1a\u8bdd\u8868\u8bb0\u5f55\u7684\u8868\u9879\u6570\u76ee\uff0c\u8868\u660e\u4e86\u9632\u706b\u5899\u80fd\u5904\u7406\u7684\u540c\u65f6\u5728\u7ebf\u4f1a\u8bdd\u6570\u91cf\u3002<\/p>\n

                        \u5c0f\u578b\u7684\u684c\u9762\u9632\u706b\u5899\u4e00\u822c\u80fd\u591f\u652f\u6301\u51e0\u4e07\u4e2a\u4f1a\u8bdd\uff0c\u7535\u4fe1\u8fd0\u8425\u5546\u4f7f\u7528\u7684\u9632\u706b\u5899\u80fd\u591f\u540c\u65f6\u7ba1\u7406\u6570\u767e\u4e07\u4e2a\u4f1a\u8bdd\u3002<\/p>\n

                        \u4f1a\u8bdd\u751f\u5b58\u65f6\u95f4<\/h4>\n

                        \u901a\u8fc7\u5b89\u5168\u7b56\u7565\u7684 UDP \u62a5\u6587\u6216 TCP \u62a5\u6587\u5230\u8fbe\u9632\u706b\u5899\u65f6\uff0c\u9632\u706b\u5899\u4f1a\u751f\u6210\u5bf9\u5e94\u7684\u4f1a\u8bdd\u4fe1\u606f\u3002\u5982\u679c\u5728\u4e00\u5b9a\u65f6\u95f4\u5185\uff0c\u8fd9\u4e2a\u4f1a\u8bdd\u6ca1\u6709\u6d41\u91cf\u7684\u8bdd\uff0c\u5c31\u628a\u4f1a\u8bdd\u5220\u9664\uff0c\u8fd9\u4e2a\u65f6\u95f4\u6bb5\u53eb\u505a\u4f1a\u8bdd\u751f\u5b58\u65f6\u95f4<\/strong>\u3002<\/p>\n

                        \u4f1a\u8bdd\u4fe1\u606f\u88ab\u5220\u9664\u540e\uff0c\u8fd9\u4e2a\u4f1a\u8bdd\u76f8\u5173\u7684\u62a5\u6587\u5230\u8fbe\u9632\u706b\u5899\u65f6\uff0c\u9632\u706b\u5899\u9700\u8981\u91cd\u65b0\u751f\u6210\u4f1a\u8bdd\u4fe1\u606f\u3002\u5982\u679c\u662f UDP \u62a5\u6587\uff0c\u53ea\u9700\u8981\u518d\u6b21\u751f\u6210\u4f1a\u8bdd\u4fe1\u606f\u5373\u53ef\uff0c\u4f46\u5982\u679c\u662f TCP \u62a5\u6587\uff0c\u9664\u4e86 SYN \u62a5\u6587\u5916\uff0c\u5176\u4f59\u62a5\u6587\u90fd\u4f1a\u4e22\u5f03\u3002\u5982\u679c SYN \u4e4b\u5916\u7684\u62a5\u6587\u906d\u5230\u9632\u706b\u5899\u62d2\u7edd\uff0c\u5c31\u9700\u8981\u5ba2\u6237\u7aef\u7684\u5e94\u7528\u7a0b\u5e8f\u91cd\u65b0\u53d1\u8d77\u6d41\u7a0b\uff0c\u8ddf\u670d\u52a1\u5668\u8fdb\u884c 3 \u6b21\u63e1\u624b\uff0c\u91cd\u65b0\u5efa\u7acb TCP \u8fde\u63a5\u3002<\/p>\n

                        \u4f1a\u8bdd\u751f\u5b58\u65f6\u95f4\uff0c\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u534f\u8bae\u8bbe\u7f6e\u4e0d\u540c\u7684\u503c\u3002\u4e00\u822c TCP \u7684\u4f1a\u8bdd\u751f\u5b58\u65f6\u95f4\u662f 1 \u5c0f\u65f6\uff0cUDP \u548c\u5176\u5b83 IP \u534f\u8bae\u7684\u4f1a\u8bdd\u751f\u5b58\u65f6\u95f4\u662f 30 \u79d2\u3002<\/p>\n

                        \u5982\u679c\u751f\u5b58\u65f6\u95f4\u8fc7\u957f\uff0c\u6216\u8005\u6ca1\u6709\u751f\u5b58\u65f6\u95f4\uff0cTCP \u6ca1\u6709\u6536\u5230 FIN \u6216 RST \uff0c\u8fde\u63a5\u4f1a\u4e00\u81f4\u4fdd\u6301\u5f00\u653e\uff0c\u800c UDP \u4f1a\u8bdd\u4e0d\u4f1a\u7ed3\u675f\uff0c\u4f1a\u8bdd\u4fe1\u606f\u4e00\u76f4\u4fdd\u7559\u3002<\/p>\n

                        \u7531\u4e8e\u4f1a\u8bdd\u4fe1\u606f\u8868\u4e2d\u7684\u4f1a\u8bdd\u8868\u9879\u7684\u6570\u91cf\u6709\u9650\uff0c\u5982\u679c\u957f\u65f6\u95f4\u4e0d\u6e05\u9664\uff0c\u4f1a\u8ba9\u8868\u9879\u6570\u91cf\u5230\u8fbe\u4e0a\u9650\u503c\u3002\u5f53\u4f1a\u8bdd\u8868\u9879\u6570\u91cf\u8fbe\u5230\u4e0a\u9650\u503c\u540e\uff0c\u4e0d\u80fd\u65b0\u5efa\u4f1a\u8bdd\uff0c\u9020\u6210\u65e0\u6cd5\u901a\u4fe1\u7684\u540e\u679c\u3002<\/p>\n

                        \u6bcf\u79d2\u4f1a\u8bdd\u6570<\/h4>\n

                        \u8def\u7531\u5668\u6027\u80fd\u4e00\u822c\u4f7f\u7528 bit\/s \u548c pps \u8fd9\u4e24\u4e2a\u5355\u4f4d\u63cf\u8ff0\u3002\u9632\u706b\u5899\u7684\u8bdd\uff0c\u8fd8\u8981\u589e\u52a0\u6bcf\u79d2\u80fd\u5efa\u7acb\u7684\u4f1a\u8bdd\u6570<\/strong>\uff08 new session per second \uff09\u8fd9\u4e2a\u53c2\u6570\u6307\u6807\u3002\u8fd9\u4e2a\u6307\u6807\u8868\u793a\u5728 1 \u79d2\u5185\u80fd\u591f\u5b8c\u6210\u591a\u5c11\u6b21\u4f1a\u8bdd\u5efa\u7acb\u30021 \u4e2a\u5b8c\u6574\u7684\u4f1a\u8bdd\u5efa\u7acb\u8fc7\u7a0b\u5305\u62ec\uff1a\u76d1\u63a7 TCP \u8fde\u63a5\u7684 3 \u6b21\u63e1\u624b\uff0c\u63e1\u624b\u6b63\u5e38\u5c31\u751f\u6210\u4f1a\u8bdd\u4fe1\u606f\uff0c\u5c06\u4f1a\u8bdd\u4fe1\u606f\u8bb0\u5f55\u5230\u4f1a\u8bdd\u8868\u7b49\u64cd\u4f5c\u3002\u5982\u679c\u6570\u503c\u4e0d\u6ee1\u8db3\u7f51\u7edc\u9700\u6c42\uff0c\u5c31\u4f1a\u9020\u6210\u7f51\u7edc\u4e2d\u65b0\u4f1a\u8bdd\u4fe1\u606f\u65e0\u6cd5\u5efa\u7acb\u3002\u7528\u6237\u4f7f\u7528\u8fc7\u7a0b\u4e2d\uff0c\u5c31\u4f1a\u89c9\u5f97\u8fd9\u4e2a\u7f51\u7edc\u7684\u54cd\u5e94\u901f\u5ea6\u975e\u5e38\u6162\u3002<\/p>\n

                        VPN<\/h4>\n

                        \u9632\u706b\u5899\u6216\u5b89\u5168\u8bbe\u5907\u90fd\u4f1a\u652f\u6301\u7ad9\u5230\u7ad9 IPsec-VPN<\/strong> \u3001\u8fdc\u7a0b\u63a5\u5165 IPsec-VPN<\/strong> \u6216 SSL-VPN<\/strong> \u529f\u80fd\u3002\u6709\u4e9b\u4ea7\u54c1\u8fd8\u652f\u6301\u7528\u6237\u901a\u4fe1\u7684 SSL\uff08 HTTPS \uff09\u89e3\u5bc6\u529f\u80fd\u3002<\/p>\n

                        \u6267\u884c\u52a0\u5bc6\u6216\u89e3\u5bc6\u7684\u64cd\u4f5c\uff0c\u548c\u4f7f\u7528\u660e\u6587\u901a\u4fe1\u5bf9\u6bd4\uff0c\u7cfb\u7edf\u7684\u8d1f\u8f7d\u4f1a\u589e\u52a0\uff0c\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u867d\u7136\u4f7f\u7528 ASIC \u82af\u7247\u5b8c\u6210\u52a0\u5bc6\uff0c\u4e0d\u4f1a\u5e26\u6765\u6027\u80fd\u4e0b\u964d\u95ee\u9898\uff0c\u4f46\u51e0\u4e4e\u6240\u6709\u7684\u8bbe\u5907\u90fd\u662f\u91c7\u7528 CPU \u7684\u8f6f\u4ef6\u5904\u7406\u65b9\u5f0f\u3002\u56e0\u6b64\uff0c\u5f53\u901a\u4fe1\u6d41\u91cf\u589e\u5927\u65f6\uff0c\u6027\u80fd\u8fd8\u662f\u4f1a\u5927\u5e45\u7684\u4e0b\u964d\u3002<\/p>\n

                        \u65e0\u7ebf AP \u6027\u80fd<\/span><\/h3>\n

                        \u5b9e\u9645\u73af\u5883\u4e2d\uff0cCSMA\/CA \u548c\u65e0\u7ebf\u7535\u6ce2\u7684\u5e72\u6270\u3001\u8ddd\u79bb\u7684\u8fdc\u8fd1\u5bfc\u81f4\u65e0\u7ebf\u7535\u6ce2\u7684\u5f3a\u5f31\u4e0d\u540c\u7b49\u539f\u56e0\uff0cAP \u662f\u8fbe\u4e0d\u5230\u7406\u8bba\u652f\u6301\u7684\u6700\u5927\u541e\u5410\u7387\u3002<\/p>\n

                        CSMA\/CA<\/h4>\n

                        IEEE 802.11 \u7684\u65e0\u7ebf AP \u4f7f\u7528 CSMA\/CA<\/strong> \u901a\u4fe1\u3002<\/p>\n

                        CSMA \u4e2d CS \u7528\u6765\u6267\u884c\u8f7d\u6ce2\u4fa6\u542c\uff0c\u5f53\u9047\u5230\u5176\u5b83\u7ec8\u7aef\u6b63\u5728\u53d1\u9001\u6570\u636e\u5e27\u65f6\uff0c\u8fd9\u4e2a\u7ec8\u7aef\u505c\u6b62\u53d1\u9001\u5e76\u7b49\u5f85\uff0c\u76f4\u5230\u5176\u5b83\u7ec8\u7aef\u53d1\u9001\u5b8c\u6bd5\u3002MA \u662f\u6307\u591a\u5740\u63a5\u5165\uff0c\u5373\u591a\u4e2a\u7ec8\u7aef\u5171\u4eab 1 \u4e2a\u4f20\u8f93\u5a92\u4ecb\u3002CA \u662f\u51b2\u7a81\u907f\u514d\uff0c\u9047\u5230\u5176\u5b83\u8bbe\u5907\u6b63\u5728\u53d1\u9001\u6570\u636e\uff0c\u90a3\u4e48\u5c31\u7b49\u5f85\u8bbe\u5907\u53d1\u9001\u5b8c\u6210\u540e\uff0c\u518d\u7b49\u5f85\u4e00\u6bb5\u968f\u673a\u65f6\u95f4\uff0c\u624d\u7ee7\u7eed\u53d1\u9001\u6570\u636e\u3002\u901a\u8fc7\u8fd9\u4e2a\u673a\u5236\u53ef\u4ee5\u9519\u5f00\u591a\u4e2a\u8282\u70b9\u540c\u65f6\u53d1\u9001\u6570\u636e\u5e27\uff0c\u6709\u6548\u964d\u4f4e\u51b2\u7a81\u53d1\u751f\u7684\u53ef\u80fd\u6027\u3002<\/p>\n

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

                        \u7531\u4e8e\u6709\u7ebf\u7f51\u7edc\u80fd\u591f\u901a\u8fc7\u7535\u6c14\u566a\u97f3\u53ca\u65f6\u68c0\u6d4b\u51b2\u7a81\u7684\u53d1\u751f\uff0c\u800c\u65e0\u7ebf\u7f51\u7edc\u65e0\u6cd5\u8fc5\u901f\u6709\u6548\u7684\u68c0\u6d4b\u51b2\u7a81\uff0c\u53ea\u80fd\u91c7\u7528 CSMA\/CA \u7684\u673a\u5236\u6765\u907f\u514d\u51b2\u7a81\u7684\u53d1\u751f\u3002<\/p>\n

                        ACK \u6570\u636e\u5e27<\/h4>\n

                        \u6536\u5230\u6570\u636e\u5e27\u540e\u7684 AP \u9700\u8981\u8fd4\u56de ACK \u6570\u636e\u5e27\uff0c\u5f53\u53d1\u9001\u65b9\u63a5\u6536\u5230 ACK \u6570\u636e\u5e27\u540e\uff0c\u8868\u793a\u6574\u4e2a\u901a\u4fe1\u8fc7\u7a0b\u7ed3\u675f\u3002\u4f46\u65e0\u7ebf\u4fe1\u53f7\u4e0d\u597d\u65f6\uff0c\u63a5\u6536\u65b9\u6ca1\u6709\u6536\u5230\u6570\u636e\u5e27\uff0c\u5c31\u4e0d\u4f1a\u53d1\u9001 ACK \u6570\u636e\u5e27\uff0c\u8fd9\u65f6\u53d1\u9001\u65b9\u4f1a\u91cd\u53d1\u6570\u636e\u5e27\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u5f53\u63a5\u6536\u65b9\u987a\u5229\u6536\u5230\u6570\u636e\u5e27\uff0c\u5e76\u8fd4\u56de ACK \u6570\u636e\u5e27\uff0c\u4f46\u662f\u53d1\u9001\u65b9\u5374\u6ca1\u6709\u6536\u5230 ACK \u6570\u636e\u5e27\u65f6\uff0c\u63a5\u6536\u65b9\u4e5f\u4f1a\u518d\u6b21\u53d1\u9001 ACK \u6570\u636e\u5e27\u3002\u7ec8\u7aef\u548c AP \u4e4b\u95f4\u7684\u8ddd\u79bb\u548c\u65e0\u7ebf\u4fe1\u53f7\u7684\u72b6\u6001\u4f1a\u5f71\u54cd\u6570\u636e\u91cd\u53d1\u7684\u6982\u7387\u3002<\/p>\n

                        \u5728\u5b9e\u9645\u73af\u5883\u4e2d\uff0c\u91cd\u53d1\u6570\u636e\u7684\u6982\u7387\u5927\u6982\u5728 20% \u5de6\u53f3\u3002<\/p>\n

                        \u73b0\u573a\u8c03\u67e5<\/h4>\n

                        \u901a\u8fc7\u4f7f\u7528\u9891\u8c31\u5206\u6790\u4eea\u8fdb\u884c\u7684\u73b0\u573a\u52d8\u67e5\u5de5\u4f5c\uff0c\u80fd\u591f\u786e\u8ba4\u65e0\u7ebf\u7f51\u7edc\u533a\u57df\u7684\u65e0\u7ebf\u4fe1\u53f7\u5e72\u6d89\u60c5\u51b5\uff0c\u53cd\u5c04\u6ce2\u6bb5\u3001\u5916\u90e8\u65e0\u7ebf\u7535\u6ce2\u5e26\u6765\u7684\u5f71\u54cd\u4ee5\u53ca\u566a\u97f3\u5e26\u6765\u7684\u5f71\u54cd\uff0c\u80fd\u591f\u90e8\u7f72\u548c\u914d\u7f6e\u6700\u4f73 AP \u3002<\/p>\n

                        \u4e00\u822c\u73b0\u573a\u52d8\u67e5\uff0c\u53ef\u4ee5\u6309\u7167\u4e0b\u9762\u7684\u6b65\u9aa4\u6765\u5b8c\u6210\u3002<\/p>\n

                        1\u3001\u51c6\u5907\u529e\u516c\u573a\u6240\u7684\u5e73\u9762\u56fe\u3002<\/p>\n

                        2\u3001\u6d4b\u8bd5\u4ece\u76f8\u90bb AP \u53d1\u51fa\u7684\u65e0\u7ebf\u7535\u6ce2\uff0c\u4e86\u89e3\u5f53\u524d\u4f4d\u7f6e\u65e0\u7ebf\u7535\u6ce2\u7684\u60c5\u51b5\u3002<\/p>\n

                        3\u3001\u901a\u8fc7\u6a21\u62df\u6765\u786e\u5b9a AP \u7684\u6570\u91cf\u3001\u65e0\u7ebf\u7535\u6ce2\u5f3a\u6ce2\u548c\u4f7f\u7528\u7684\u9891\u9053\uff0c\u5e76\u6807\u8bb0\u5230\u529e\u516c\u573a\u6240\u7684\u5e73\u9762\u56fe\u4e0a\u3002<\/p>\n

                        4\u3001\u6839\u636e\u6a21\u62df\u7ed3\u679c\uff0c\u5bf9\u914d\u7f6e\u7684 AP \u8fdb\u884c\u4e34\u65f6\u914d\u7f6e\u5e76\u8fdb\u884c\u9a8c\u8bc1\u3002<\/p>\n

                        5\u3001\u5b8c\u6210\u914d\u7f6e\u540e\uff0c\u5bf9 AP \u662f\u5426\u80fd\u591f\u8986\u76d6\u6240\u6709\u533a\u57df\u8fdb\u884c\u6700\u7ec8\u786e\u8ba4\u3002<\/p>\n

                        \u9009\u62e9\u4ea4\u6362\u673a<\/span><\/h3>\n

                        \u9009\u62e9\u63a5\u5165\u4ea4\u6362\u673a<\/h4>\n

                        \u4ea4\u6362\u673a\u7684\u4e0b\u884c\u7aef\u53e3\u7528\u6765\u8fde\u63a5\u7ec8\u7aef\uff0c\u5927\u90e8\u5206\u63a5\u5165\u4ea4\u6362\u673a\u90fd\u662f 1G \u7684\u4e0b\u884c\u7aef\u53e3\u3002\u76ee\u524d\u4e2a\u4eba\u7535\u8111\u90fd\u6709 1G \u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u4f46\u5982\u679c\u4ea4\u6362\u673a\u662f 100M \u63a5\u53e3\uff0c\u90a3\u4e48\u81ea\u9002\u5e94\u529f\u80fd\u5c31\u4f1a\u8ba9\u94fe\u8def\u901f\u5ea6\u53d8\u6210 100Mbit\/s \uff0c\u8fd9\u65f6\u4e0b\u884c\u94fe\u8def\u5c31\u53ef\u80fd\u6210\u4e3a\u7f51\u7edc\u74f6\u9888\u3002<\/p>\n

                        \u5927\u90e8\u5206\u4ea4\u6362\u673a\u90fd\u91c7\u7528 2 \u4e2a\u6216 4 \u4e2a\u4e07\u5146\u4e0a\u884c\u7aef\u53e3\u3002\u4e24\u4e2a\u4e0a\u884c\u7aef\u53e3\uff0c\u53ef\u4ee5\u540c\u65f6\u8fde\u63a5\u4e24\u53f0\u6c47\u805a\u4ea4\u6362\u673a\u6216\u6838\u5fc3\u4ea4\u6362\u673a\u7ec4\u6210\u5197\u4f59\u7ec4\u7f51\u7ed3\u6784\u3002\u56db\u4e2a\u4e0a\u884c\u7aef\u53e3\u6784\u6210\u4e24\u7ec4\u901a\u9053\uff0c\u4ee5\u4e24\u500d\u7684\u541e\u5410\u7387\u548c\u4e0a\u5c42\u4ea4\u6362\u673a\u7ec4\u6210\u5197\u4f59\u7f51\u7edc\u7ed3\u6784\u3002<\/p>\n

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

                        \u4e0b\u884c\u7aef\u53e3\u6570\u91cf\uff0c\u6839\u636e\u5ba2\u6237\u7aef\u6216\u6253\u5370\u673a\u7b49\u7ec8\u7aef\u6570\u91cf\u51b3\u5b9a\u7684\u3002<\/p>\n

                        \u9009\u62e9\u6c47\u805a\u4ea4\u6362\u673a\u548c\u6838\u5fc3\u4ea4\u6362\u673a<\/h4>\n

                        \u5927\u89c4\u6a21\u7684\u7f51\u7edc\u4e2d\uff0c\u9700\u8981\u63a5\u5165\u4ea4\u6362\u673a\u3001\u6c47\u805a\u4ea4\u6362\u673a\u3001\u6838\u5fc3\u4ea4\u6362\u673a\u8fd9\u79cd\u5206\u5c42\u7ec4\u7f51\u7ed3\u6784\u3002<\/p>\n

                        \u6c47\u805a\u4ea4\u6362\u673a\u7684\u4e0b\u884c\u94fe\u8def\u4e00\u822c\u4f7f\u7528 10G \u7f51\u7edc\u63a5\u53e3\u548c\u63a5\u5165\u4ea4\u6362\u673a\u7684\u4e0a\u884c\u94fe\u8def\u8fdb\u884c\u8fde\u63a5\u3002\u5728\u4e09\u5c42\u7ec4\u7f51\u7ed3\u6784\u4e2d\uff0c\u6c47\u805a\u4ea4\u6362\u673a\u7684\u4e0a\u884c\u94fe\u8def\u8981\u548c\u6838\u5fc3\u4ea4\u6362\u673a\u7684\u4e0b\u884c\u94fe\u8def\u8fde\u63a5\uff0c\u800c\u5728\u4e8c\u5c42\u7ec4\u7f51\u4e2d\uff0c\u63a5\u5165\u4ea4\u6362\u673a\u7684\u4e0a\u884c\u94fe\u8def\u8981\u548c\u6838\u5fc3\u4ea4\u6362\u673a\u7684\u4e0b\u884c\u94fe\u8def\u8fde\u63a5\uff0c\u4e5f\u6709\u4f7f\u7528 40Gbit\/s \u548c 100Gbit\/s \u7f51\u7edc\u63a5\u53e3\u8fde\u63a5\u7684\u3002<\/p>\n

                        \u5982\u679c\u63a5\u5165\u4e92\u8054\u7f51\uff0c\u5f80\u5f80\u662f\u8def\u7531\u5668\u548c\u9632\u706b\u5899\u5bb9\u6613\u6210\u4e3a\u7f51\u7edc\u74f6\u9888\u3002\u5982\u679c\u5c40\u57df\u7f51\u7684\u901a\u4fe1\u591a\uff0c\u4ea4\u6362\u673a\u5c31\u53ef\u80fd\u6210\u4e3a\u6700\u5927\u7684\u7f51\u7edc\u74f6\u9888\u3002\u5982\u679c\u9884\u7b97\u6709\u9650\uff0c\u53ef\u4ee5\u9009\u62e9\u541e\u5410\u91cf\u6ee1\u8db3\u6700\u4f4e\u9700\u6c42\u7684\u4ea4\u6362\u673a\u3002<\/p>\n

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

                        \u6c47\u805a\u4ea4\u6362\u673a\u548c\u6838\u5fc3\u4ea4\u6362\u673a\u7684\u7aef\u53e3\u6570\u91cf\uff0c\u8981\u6839\u636e\u63a5\u5165\u4ea4\u6362\u673a\u548c\u7ec8\u7aef\u6570\u91cf\u6765\u8bbe\u8ba1\u3002\u6846\u5f0f\u4ea4\u6362\u673a\u80fd\u591f\u901a\u8fc7\u589e\u52a0\u7ebf\u5361\u6a21\u5757\u6765\u6ee1\u8db3\u7aef\u53e3\u589e\u52a0\u7684\u9700\u6c42\u3002<\/p>\n

                        PoE \u4f9b\u7535<\/h4>\n

                        \u901a\u8fc7 PoE \u4f9b\u7535\u6280\u672f\u5bf9\u65e0\u7ebf AP \u3001IP \u7535\u8bdd\u3001\u6444\u50cf\u5934\u7b49\u8bbe\u5907\u8fdb\u884c\u4f9b\u7535\u65f6\uff0c\u9700\u8981\u5bf9\u80fd\u591f\u4f9b\u7ed9\u7684\u7535\u6e90\u5bb9\u91cf\u8fdb\u884c\u603b\u4f53\u7684\u8bbe\u8ba1\u548c\u89c4\u5212\u3002\u6bd4\u5982\uff1aPoE \u4ea4\u6362\u673a\u80fd\u591f\u63d0\u4f9b 420W \u7684\u7535\u80fd\uff0c\u53ef\u4ee5\u540c\u65f6\u652f\u6301 24 \u4e2a\u7aef\u53e3\u4f7f\u7528 802.3af\uff08 15.4W\/\u63a5\u53e3 \uff09\u4f9b\u7535\uff0c\u6216\u540c\u65f6\u652f\u6301 12 \u4e2a\u7aef\u53e3\u4f7f\u7528 802.3at\uff08 30W\/\u63a5\u53e3 \uff09\u4f9b\u7535\uff0c\u6216\u540c\u65f6\u652f\u6301 6 \u4e2a\u7aef\u53e3\u4f7f\u7528 802.3bt\uff08 60W\/\u63a5\u53e3 \uff09\u4f9b\u7535\u3002<\/p>\n

                        \u9009\u62e9\u8def\u7531\u5668<\/span><\/h3>\n

                        \u8def\u7531\u5668\u7684\u63a5\u53e3\u6570\u91cf\u662f\u4f9d\u636e\u8fde\u63a5\u7684\u7f51\u6bb5\u6570\u91cf\u6765\u9009\u62e9\u3002\u5728\u4ee5\u592a\u7f51\u4e2d\uff0c\u4f7f\u7528\u7684\u7269\u7406\u63a5\u53e3\u6570\u91cf\u53ea\u8981\u6ee1\u8db3\u6700\u4f4e\u9650\u5ea6\u5c31\u53ef\u4ee5\u4e86\uff0c\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u4e8c\u5c42\u4ea4\u6362\u673a\u6765\u589e\u52a0\u63a5\u53e3\u6570\u91cf\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 VLAN \u7684\u5b50\u63a5\u53e3\u6765\u7f13\u89e3\u63a5\u53e3\u4e0d\u8db3\u7684\u95ee\u9898\u3002<\/p>\n

                        \u9009\u62e9\u9632\u706b\u5899<\/span><\/h3>\n

                        \u5728\u4e92\u8054\u7f51\u7f51\u5173\u914d\u7f6e\u9632\u706b\u5899\u65f6\uff0c\u81f3\u5c11\u8981\u51c6\u5907\u4e24\u4e2a\u7aef\u53e3\uff0c\u5373\u8fde\u63a5\u4e92\u8054\u7f51\u7684\u4e0a\u884c\u7aef\u53e3\u548c\u8fde\u63a5\u5185\u7f51\u7684\u4e0b\u884c\u7aef\u53e3\uff0c\u6700\u5e38\u7528\u4e5f\u662f\u6700\u4f20\u7edf\u7684\u9632\u706b\u5899\u7ec4\u7f51\u65b9\u5f0f\u3002<\/p>\n

                        \u73b0\u5728\u4e3a\u4e86\u4fdd\u969c\u5185\u7f51\u7684\u5b89\u5168\uff0c\u4f1a\u628a\u9632\u706b\u5899\u90e8\u7f72\u5728\u5185\u7f51\uff0c\u540c\u65f6\u914d\u7f6e RJ-45 \u3001SFP\/SFP+ \u7b49\u63a5\u53e3\uff0c\u63d0\u4f9b 8 ~ 24<\/code><\/span> \u4e2a\u7f51\u7edc\u7aef\u53e3\u3002<\/p>\n

                        \u7f51\u7edc\u8bbe\u5907\u4e92\u64cd\u4f5c\u6027<\/span><\/h3>\n

                        \u4e92\u64cd\u4f5c\u6027\u8868\u793a\u7f51\u7edc\u4e2d\u4e0d\u540c\u7c7b\u578b\u7684\u7f51\u7edc\u8bbe\u5907\u4e92\u76f8\u8fde\u63a5\u540e\uff0c\u4e5f\u80fd\u6b63\u5e38\u901a\u4fe1\u7684\u60c5\u51b5\u3002\u7531\u4e8e\u7f51\u7edc\u8bbe\u5907\u901a\u5e38\u5b9e\u73b0\u4e86\u76f8\u540c\u7684 RFC \u6216 IEEE \u7b49\u6807\u51c6\u6216\u534f\u8bae\uff0c\u56e0\u6b64\u4e0d\u540c\u5382\u5546\u8bbe\u5907\u4e4b\u95f4\uff0c\u53ef\u4ee5\u8bf4\u5177\u6709\u4e92\u8054\u6027\u3002\u4f46\u53e6\u4e00\u65b9\u9762\uff0c\u5382\u5bb6\u72ec\u81ea\u5b9e\u73b0\u4e86\u4e00\u4e9b\u672a\u6807\u51c6\u5316\u7684\u529f\u80fd\uff0c\u8fd9\u7c7b\u529f\u80fd\u662f\u65e0\u6cd5\u5728\u6240\u6709\u8bbe\u5907\u4e0a\u8fd0\u884c\u7684\u3002<\/p>\n

                        \u5f53\u9700\u8981\u5f15\u5165\u591a\u4e2a\u4e0d\u540c\u5382\u5546\u751f\u4ea7\u7684\u7f51\u7edc\u8bbe\u5907\u8fdb\u884c\u7ec4\u7f51\u65f6\uff0c\u5c31\u8981\u8003\u8651\u8bbe\u5907\u7684\u4e92\u64cd\u4f5c\u6027\uff0c\u5e76\u4f5c\u4e3a\u9009\u62e9\u8bbe\u5907\u7684\u4e00\u9879\u91cd\u8981\u4f9d\u636e\u3002\u50cf\u8bbf\u95ee\u63a7\u5236\u5217\u8868\u6216\u75c5\u6bd2\u626b\u63cf\u7b49\u80fd\u591f\u5728\u7f51\u7edc\u8bbe\u5907\u5185\u90e8\u5904\u7406\uff0c\u65e0\u9700\u548c\u7f51\u7edc\u4e0a\u5176\u5b83\u8bbe\u5907\u8fde\u63a5\u7684\u529f\u80fd\uff0c\u5c31\u4e0d\u7528\u8003\u8651\u4e92\u64cd\u4f5c\u6027\u3002<\/p>\n

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

                        \u9ad8\u53ef\u7528\u6027<\/span><\/h3>\n

                        MTBF \u548c MTTR<\/h4>\n

                        \u5305\u542b\u7f51\u7edc\u8bbe\u5907\u7684\u7535\u6c14\u4ea7\u54c1\u548c\u8ba1\u7b97\u673a\u7cfb\u7edf\u7b49\uff0c\u901a\u5e38\u4f7f\u7528 MTBF<\/strong>\uff08\u5e73\u5747\u6545\u969c\u95f4\u9694\u65f6\u95f4\uff09\u6765\u8ba1\u7b97\u51fa\u73b0\u6545\u969c\u7684\u6982\u7387\u3002\u8fd9\u4e2a\u53c2\u6570\u4ee5\u5c0f\u65f6\uff08 hour \uff09\u4e3a\u5355\u4f4d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u516c\u5f0f\u8ba1\u7b97\u3002<\/p>\n

                        \n

                        MTBF = \u8fd0\u884c\u65f6\u95f4 \/ \u6545\u969c\u6b21\u6570<\/p>\n<\/blockquote>\n

                        \u5728\u5b9e\u9645\u8fd0\u7528\u4e2d\uff0cMTBF \u8fd8\u80fd\u4f7f\u7528\u9884\u6d4b\u6cd5\u6216\u63a8\u6d4b\u6cd5\u8ba1\u7b97\u51fa\u6765\u3002\u63a8\u6d4b\u6cd5\u4e4b\u4e00\uff0c\u662f\u6570\u636e\u8ba1\u91cf\u6cd5\u3002\u901a\u8fc7\u8bb0\u5f55\u591a\u4e2a\u6837\u672c\u6570\u636e\uff0c\u89c2\u5bdf\u5728\u76f8\u5bf9\u8f83\u77ed\u7684\u65f6\u95f4\u5185\u6709\u591a\u5c11\u53f0\u8bbe\u5907\u53d1\u751f\u4e86\u6545\u969c\uff0c\u63a8\u7b97\u51fa MTBF \u503c\u3002\u6bd4\u5982\uff1a\u540c\u65f6\u542f\u7528\u4e00\u4e07\u53f0\u76f8\u540c\u7684\u8bbe\u5907\uff0c\u8fd0\u884c 100 \u4e2a\u5c0f\u65f6\uff0c\u8fd9\u4e2a\u671f\u95f4\u51fa\u73b0 5 \u53f0\u8bbe\u5907\u6545\u969c\uff0c\u5c31\u53ef\u4ee5\u8ba1\u7b97 MTBF \u503c\uff1a1 \u4e07\u53f0 \u00d7 100 \u5c0f\u65f6 \u00f7 5 \u6b21\u6545\u969c = 20 \u4e07\u5c0f\u65f6\u3002<\/p>\n

                        \u6545\u969c\u7387\u53ef\u4ee5\u901a\u8fc7 MTBF \u7684\u5012\u6570\u8ba1\u7b97\u5f97\u51fa\u3002<\/p>\n

                        \n

                        \u6545\u969c\u7387 = 1 \/ MTBF<\/p>\n<\/blockquote>\n

                        MTTR<\/strong>\uff08\u5e73\u5747\u4fee\u590d\u65f6\u95f4\uff09\u662f\u6307\u7cfb\u7edf\u53d1\u751f\u6545\u969c\u540e\uff0c\u5230\u4fee\u590d\u5b8c\u6bd5\u82b1\u8d39\u7684\u5e73\u5747\u65f6\u95f4\u3002<\/p>\n

                        \u7cfb\u7edf\u7684\u8fd0\u884c\u6982\u7387\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u516c\u5f0f\u8ba1\u7b97\u5f97\u51fa\u3002<\/p>\n

                        \n

                        \u6b63\u5e38\u8fd0\u884c\u6982\u7387 = MTBF \/\uff08 MTBF + MTTR \uff09<\/p>\n<\/blockquote>\n

                        \u7b80\u5355\u8bf4\uff0c\u5c31\u662f MTBF \u503c\u8d8a\u5927\uff0c\u800c MTTR \u503c\u8d8a\u5c0f\uff0c\u7cfb\u7edf\u53ef\u7528\u6027\u66f4\u9ad8\u3002<\/p>\n

                        \u7ed3\u675f\u8bed<\/span><\/h3>\n

                        \u5f53\u7136\uff0c\u5b8c\u6574\u7684\u8fdb\u884c\u8bbe\u5907\u9009\u578b\uff0c\u9996\u5148\u8981\u6536\u96c6\u9884\u7b97\u3001\u9700\u6c42\u3001\u7f51\u7edc\u73b0\u72b6\u548c\u672a\u6765\u53ef\u6269\u5bb9\u7b49\uff0c\u518d\u8fdb\u884c\u6709\u9488\u5bf9\u6027\u7684\u8bbe\u5907\u9009\u578b\uff0c\u751a\u81f3\u53ef\u4ee5\u6709\u51e0\u5957\u8bbe\u5907\u9009\u578b\u65b9\u6848\uff0c\u9010\u6b65\u7ec6\u5316\u548c\u5206\u89e3\uff0c\u5e76\u7ed3\u5408\u8bbe\u5907\u91c7\u8d2d\u6d41\u7a0b\uff0c\u6700\u7ec8\u6572\u5b9a\u8bbe\u5907\u91c7\u8d2d\u6e05\u5355\u3002\u5982\u679c\u6709\u94b1\u7684\u91d1\u4e3b\uff0c\u90a3\u80af\u5b9a\u662f\u4e00\u5206\u94b1\u4e00\u5206\u8d27\uff0c\u4e70\u6700\u597d\u7684\u3002\u5982\u679c\u9884\u7b97\u6709\u9650\uff0c\u5c31\u8981\u9009\u9ad8\u6027\u4ef7\u6bd4\u7684\u3002<\/p>\n

                        \n
                        \n
                        \n
                        \n

                        end<\/span><\/p>\n<\/section>\n

                        <\/section>\n<\/section>\n<\/section>\n<\/section>\n
                        <\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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