{"id":1031,"date":"2019-11-26T14:32:47","date_gmt":"2019-11-26T06:32:47","guid":{"rendered":"http:\/\/149.129.74.185\/?p=1031"},"modified":"2019-11-26T14:32:47","modified_gmt":"2019-11-26T06:32:47","slug":"%e8%ae%a1%e7%ae%97%e6%9c%ba%e7%bd%91%e7%bb%9c-chapter-1-review","status":"publish","type":"post","link":"http:\/\/www.magicmipamipa.com\/?p=1031","title":{"rendered":"[\u8ba1\u7b97\u673a\u7f51\u7edc] Chapter 1 review"},"content":{"rendered":"

<\/h4>\n

\u57fa\u672c\u6982\u5ff5<\/span><\/h4>\n
\u8ba1\u7b97\u673a\u7f51\u7edc\u7684\u6982\u5ff5<\/span><\/h5>\n

\u8ba1\u7b97\u673a\u7f51\u7edc\u662f\u4e92\u8054\u7684<\/span><\/strong>\u3001\u81ea\u6cbb\u7684<\/span><\/strong>\u8ba1\u7b97\u673a\u96c6\u5408<\/span><\/p>\n

 <\/p>\n

\u8ba1\u7b97\u673a\u7f51\u7edc\u7684\u529f\u80fd<\/span><\/h5>\n

1.\u6570\u636e\u901a\u4fe1\uff08\u8fde\u901a\u6027\uff09<\/span><\/p>\n

2.\u8d44\u6e90\u5171\u4eab\uff1a\u786c\u4ef6\u3001\u8f6f\u4ef6\u3001\u6570\u636e<\/span><\/p>\n

3.\u5206\u5e03\u5f0f\u5904\u7406\uff1a\u591a\u53f0\u8ba1\u7b97\u673a\u5404\u81ea\u627f\u62c5\u540c\u4e00\u5de5\u4f5c\u4efb\u52a1\u7684\u4e0d\u901a\u90e8\u5206<\/p>\n

4.\u63d0\u9ad8\u53ef\u9760\u6027\uff1a\u4ee3\u66ff\u673a\u4fdd\u8bc1\u8ba1\u7b97\u673a\u7f51\u7edc\u80fd\u591f\u901a\u7545<\/span><\/p>\n

5.\u8d1f\u8f7d\u5747\u8861\uff1a\u5404\u8ba1\u7b97\u673a\u4e4b\u95f4\u66f4\u52a0\u4eb2\u5bc6<\/span><\/p>\n

<\/h4>\n

\u8ba1\u7b97\u673a\u7f51\u7edc\u7684\u7ec4\u6210<\/span><\/h5>\n

1.\u7ec4\u6210\u90e8\u5206\uff1a\u786c\u4ef6\u3001\u8f6f\u4ef6\u3001\u534f\u8bae<\/span><\/p>\n

2.\u5de5\u4f5c\u65b9\u5f0f\uff1a\u8fb9\u7f18\u90e8\u5206-\u7528\u6237\u76f4\u63a5\u4f7f\u7528\uff08<\/span>P2P\u3001C\/S\uff09\u3001\u6838\u5fc3\u90e8\u5206-\u4e3a\u8fb9\u7f18\u90e8\u5206\u670d\u52a1<\/p>\n

3.\u529f\u80fd\u7ec4\u6210\uff1a\u901a\u4fe1\u5b50\u7f51-\u5b9e\u73b0\u6570\u636e\u901a\u4fe1<\/span> \u8d44\u6e90\u5b50\u7f51-\u5b9e\u73b0\u8d44\u6e90\u5171\u4eab<\/span>\/\u6570\u636e\u5904\u7406<\/p>\n

\u7f51\u7edc\u5c42\uff1a\u8def\u7531\u5668<\/p>\n

\u6570\u636e\u94fe\u8def\u5c42\uff1a\u4ea4\u6362\u673a\u3001\u7f51\u6865<\/p>\n

\u7269\u7406\u5c42\uff1a\u96c6\u7ebf\u5668\u3001\u4e2d\u7ee7\u5668<\/p>\n

 <\/p>\n

\u8ba1\u7b97\u673a\u7f51\u7edc\u7684\u5206\u7c7b<\/span><\/h5>\n

1.\u6309\u5206\u5e03\u8303\u56f4\u5206\uff1a\u5e7f\u57df\u7f51\uff08\u4ea4\u6362\u6280\u672f\uff09WAN\u3001\u57ce\u57df\u7f51MAN\u3001\u5c40\u57df\u7f51WAN\uff08\u5e7f\u64ad\u6280\u672f\uff09\u3001\u4e2a\u4eba\u533a\u57df\u7f51PAN<\/span><\/p>\n

2.\u6309\u4f7f\u7528\u8005\u5206\uff1a\u516c\u7528\u7f51\u3001\u4e13\u7528\u7f51<\/span><\/p>\n

3.\u6309\u4ea4\u6362\u6280\u672f\u5206\uff1a\u7535\u8def\u4ea4\u6362\u3001\u62a5\u6587\u4ea4\u6362\u3001\u5206\u7ec4\u4ea4\u6362<\/span><\/p>\n

4.\u6309\u62d3\u6251\u7ed3\u6784\u5206\uff1a\u603b\u7ebf\u578b\u3001\u661f\u578b\u3001\u73af\u5f62\u3001\u7f51\u72b6\u578b\uff08\u5e7f\u57df\u7f51\u5e38\u7528internet\uff09\u00a0<\/span><\/p>\n

5.\u6309\u4f20\u8f93\u6280\u672f\u5206\uff1a\u5e7f\u64ad\u5f0f\u7f51\u7edc\uff08\u5171\u4eab\u516c\u5171\u901a\u4fe1\u4fe1\u9053\uff09\u3001\u70b9\u5bf9\u70b9\u7f51\u7edc\uff08\u4f7f\u7528\u5206\u7ec4\u5b58\u50a8\u8f6c\u53d1\u548c\u8def\u7531\u9009\u62e9\u673a\u5236\uff09<\/span><\/p>\n

\n

\u6807\u51c6\u5316<\/span><\/h4>\n

\u6807\u51c6\u5316\u5de5\u4f5c<\/span><\/h4>\n

\u6cd5\u5b9a\u6807\u51c6\uff1a\u7531\u6743\u5a01\u673a\u6784\u5236\u5b9a\u7684\u6b63\u5f0f\u7684\u5408\u6cd5\u7684\u6807\u51c6 OSI<\/span><\/span><\/p>\n

\u4e8b\u5b9e\u6807\u51c6\uff1a\u67d0\u4e9b\u516c\u53f8\u4ea7\u54c1\u5360\u636e\u4e86\u5e02\u573a\u7684\u4e3b\u6d41\uff0c\u6210\u4e3a\u4e86\u4e3b\u6d41\u6807\u51c6 TCP\/IP<\/span><\/span><\/p>\n

 <\/p>\n

RFC( Request For Comments)<\/span><\/p>\n

1.\u56e0\u7279\u7f51\u8349\u6848<\/span><\/p>\n

2.\u5efa\u8bae\u6807\u51c6<\/span><\/p>\n

3.\u56e0\u7279\u7f51\u6807\u51c6<\/span><\/p>\n

 <\/p>\n

\u6807\u51c6\u5316\u5de5\u4f5c\u7684\u76f8\u5173\u7ec4\u7ec7<\/span><\/h5>\n

\u56fd\u9645\u6807\u51c6\u5316\u7ec4\u7ec7ISO<\/strong> OSI\u53c2\u8003\u6a21\u578b\u3001HDLC\u534f\u8bae<\/span><\/span><\/p>\n

\u56fd\u9645\u7535\u4fe1\u8054\u76dfITU \u6307\u5b9a\u901a\u4fe1\u89c4\u5219<\/span><\/p>\n

\u56fd\u9645\u7535\u6c14\u7535\u5b50\u5de5\u7a0b\u5e08\u534f\u4f1aIEEE \u5b66\u672f\u673a\u6784\u3001IEEE802\u7cfb\u5217\u6807\u51c6\u30015G<\/span><\/p>\n

Internet\u5de5\u7a0b\u4efb\u52a1\u7ec4 IETF \u8d1f\u8d23\u56e0\u7279\u7f51\u76f8\u5173\u6807\u51c6\u7684\u5236\u5b9a<\/span><\/p>\n

\n

\u6027\u80fd\u6307\u6807<\/span><\/h4>\n
\u901f\u7387<\/span> <\/span><\/h5>\n

*\u5373\u6570\u636e\u7387\u6216\u6570\u636e\u4f20\u8f93\u7387\u6216\u6bd4\u7279\u7387<\/span><\/p>\n

\u901f\u7387<\/span><\/strong>\u7684\u6362\u7b97\u500d\u6570:(10^3)<\/span><\/p>\n

1kb\/s = 10^3b\/s\u00a0<\/span><\/p>\n

\u5b58\u50a8\u5bb9\u91cf<\/span><\/strong>\u7684\u6362\u7b97\u500d\u6570:(2^10)<\/span><\/p>\n

1Byte = 8bit<\/span><\/p>\n

1KB = 2^10B = 1024B = 1024 * 8b<\/span><\/p>\n

 <\/p>\n

\u5e26\u5bbd<\/span><\/h5>\n

*\u8868\u793a\u7f51\u7edc\u7684\u901a\u4fe1\u7ebf\u8def\u4f20\u9001\u6570\u636e\u7684\u80fd\u529b\uff0c\u5355\u4f4d\u662fb\/s\uff0c\u8868\u793a\u7f51\u7edc\u8bbe\u5907\u6240\u652f\u6301\u7684\u6700\u9ad8\u901f\u5ea6\uff0c\u5355\u4f4db\/s\u3002\u00a0<\/span><\/span><\/p>\n

\u7406\u60f3\u72b6\u6001<\/p>\n

 <\/p>\n

\u541e\u5410\u91cf<\/span><\/h5>\n

*\u8868\u793a\u5728\u5355\u4f4d\u65f6\u95f4<\/span>\u5185\u901a\u8fc7\u67d0\u4e2a\u7f51\u7edc<\/span>\uff08\u4fe1\u9053\u3001\u63a5\u53e3\uff09\u7684\u6570\u636e\u91cf\uff0c\u5355\u4f4db\/s\u3002<\/span><\/p>\n

\u5b9e\u9645\u4f20\u8f93\u6536\u5230\u7684\u6570\u636e\u91cf<\/p>\n

 <\/p>\n

\u65f6\u5ef6<\/span><\/h5>\n

\u6307\u6570\u636e\u4ece\u7f51\u7edc\u7684\u4e00\u7aef\u4f20\u9001\u5230\u53e6\u4e00\u7aef\u6240\u9700\u7684\u65f6\u95f4\u3002\u4e5f\u53eb\u5ef6\u8fdf\uff0c\u5355\u4f4ds\u3002\u00a0<\/span><\/p>\n

\u53d1\u9001\u65f6\u5ef6\uff1a\u4ece\u53d1\u9001\u5206\u7ec4\u7684\u7b2c\u4e00\u4e2a\u6bd4\u7279\u7b97\u8d77\uff0c\u5230\u8be5\u5206\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u6bd4\u7279\u53d1\u9001\u5b8c\u6bd5\u6240\u9700\u7684\u65f6\u95f4\u3002\uff08\u53d1\u751f\u5728\u673a\u5668\u5185\u90e8\u7684\u53d1\u9001\u5668\u4e0a\uff09<\/span><\/p>\n

\u53d1\u9001\u65f6\u5ef6 = \u6570\u636e\u957f\u5ea6 \/ \u4fe1\u9053\u5e26\u5bbd\uff08\u53d1\u9001\u901f\u7387\uff09<\/span><\/p>\n

\u4f20\u64ad\u65f6\u5ef6<\/span><\/strong>\uff1a\u53d6\u51b3\u4e8e\u7535\u78c1\u6ce2\u7684\u4f20\u64ad\u901f\u5ea6<\/span>\u548c\u94fe\u8def\u957f\u5ea6<\/span>\u3002\uff08\u53d1\u751f\u5728\u4fe1\u9053\u4e0a\uff09<\/span><\/p>\n

\u4f20\u64ad\u65f6\u5ef6 = \u4fe1\u9053\u957f\u5ea6 \/ \u7535\u78c1\u6ce2\u5728\u4fe1\u9053\u4e0a\u7684\u4f20\u64ad\u901f\u7387<\/span><\/p>\n

\u6392\u961f\u65f6\u5ef6\uff1a\u7b49\u5f85\u8f93\u51fa\/\u5165\u94fe\u8def\u53ef\u7528\uff08\u53d1\u751f\u5728\u8def\u7531\u5668\u4e0a\uff09<\/span><\/p>\n

\u5904\u7406\u65f6\u5ef6\uff1a\u68c0\u9519\u3001\u627e\u51fa\u53e3\uff08\u53d1\u751f\u5728\u8def\u7531\u5668\u4e0a\uff09\u00a0<\/span><\/p>\n

 <\/p>\n

\u65f6\u5ef6\u5e26\u5bbd\u79ef<\/span><\/h5>\n

*\u53c8\u79f0\u4ee5\u6bd4\u7279\u4e3a\u5355\u4f4d\u7684\u94fe\u8def\u957f\u5ea6<\/span><\/strong>\uff0c\u5373\u201c\u67d0\u6bb5\u94fe\u8def\u73b0\u5728\u6709\u591a\u5c11\u6bd4\u7279\u201d<\/span><\/p>\n

\u7b2c\u4e00\u4e2a\u6bd4\u7279\u51fa\u53d1\u81f3\u7b2c\u4e00\u4e2a\u6bd4\u7279\u5230\u8fbe<\/span><\/p>\n

\u65f6\u5ef6\u5e26\u5bbd\u79ef\uff08bit\uff09 = \u4f20\u64ad\u65f6\u5ef6 * \u5e26\u5bbd<\/span><\/p>\n

 <\/p>\n

\u5f80\u8fd4\u65f6\u5ef6RTT<\/span><\/h5>\n

\u4ece\u53d1\u9001\u65b9\u53d1\u9001\u6570\u636e\u5f00\u59cb\uff0c\u5230\u53d1\u9001\u65b9\u6536\u5230\u63a5\u6536\u65b9\u7684\u786e\u8ba4\u603b\u5171\u7ecf\u5386\u7684\u65f6\u5ef6\u3002<\/span><\/p>\n

RTT\u8d8a\u5927\uff0c\u5728\u6536\u5230\u786e\u8ba4\u4e4b\u524d\uff0c\u53ef\u4ee5\u53d1\u9001\u7684\u6570\u636e\u8d8a\u591a\u3002<\/span><\/p>\n

RTT = \u5f80\u8fd4\u4f20\u64ad\u65f6\u5ef6 +\u00a0\u672b\u7aef\u5904\u7406\u65f6\u95f4 = \u4f20\u64ad\u65f6\u5ef6 * 2 +\u00a0\u672b\u7aef\u5904\u7406\u65f6\u95f4<\/span><\/p>\n

<\/h5>\n
\u5229\u7528\u7387<\/span><\/h5>\n

\u4fe1\u9053\u5229\u7528\u7387\uff1a\u6709\u6570\u636e\u901a\u8fc7\u65f6\u95f4 \/ (\u6709+\u65e0)\u6570\u636e\u901a\u8fc7\u65f6\u95f4<\/span><\/p>\n

\u7f51\u7edc\u5229\u7528\u7387\uff1a\u4fe1\u9053\u5229\u7528\u7387\u52a0\u6743\u5e73\u5747\u503c<\/span><\/p>\n

*100M\u5e26\u5bbd\u8981\u96648\uff0c\u4e0b\u8f7d\u91cf10MB\/s\u537380M\u5e26\u5bbd<\/p>\n

\n

\u5206\u5c42\u7ed3\u6784<\/span><\/h4>\n
\u5206\u5c42\u7684\u57fa\u672c\u539f\u5219<\/span><\/h5>\n

1.\u5404\u5c42\u4e4b\u95f4\u76f8\u4e92\u72ec\u7acb\uff0c\u6bcf\u5c42\u53ea\u5b9e\u73b0\u4e00\u79cd\u76f8\u5bf9\u72ec\u7acb\u7684\u529f\u80fd\u3002<\/p>\n

2.\u6bcf\u5c42\u4e4b\u95f4\u754c\u9762\u81ea\u7136\u6e05\u6670\uff0c\u6613\u4e8e\u7406\u89e3\uff0c\u76f8\u4e92\u4ea4\u6d41\u5c3d\u53ef\u80fd\u5c11\u3002<\/p>\n

3.\u7ed3\u6784\u4e0a\u4e0b\u53ef\u5206\u9694\u5f00\uff0c\u6bcf\u5c42\u90fd\u91c7\u7528\u6700\u5408\u9002\u7684\u6280\u672f\u6765\u5b9e\u73b0\u3002<\/p>\n

4.\u4fdd\u6301\u4e0b\u5c42\u5bf9\u4e0a\u5c42\u7684\u72ec\u7acb\u6027\uff0c\u4e0a\u5c42\u5355\u5411\u4f7f\u7528\u4e0b\u5c42\u63d0\u4f9b\u7684\u670d\u52a1\u3002<\/p>\n

5.\u6574\u4e2a\u5206\u5c42\u7ed3\u6784\u5e94\u4fc3\u8fdb\u6807\u51c6\u5316\u5de5\u4f5c\u3002<\/p>\n

 <\/p>\n

    \n
  • \u7f51\u7edc\u4f53\u7cfb\u7ed3\u6784\u662f\u4ece\u529f\u80fd<\/strong><\/span>\u4e0a\u63cf\u8ff0\u8ba1\u7b97\u673a\u7f51\u7edc\u7ed3\u6784<\/li>\n
  • \u8ba1\u7b97\u673a\u7f51\u7edc\u4f53\u7cfb\u7ed3\u6784\u7b80\u79f0\u7f51\u7edc\u4f53\u7cfb\u7ed3\u6784\u662f\u5206\u5c42\u7ed3\u6784<\/span><\/strong><\/li>\n
  • \u6bcf\u5c42\u9075\u5faa\u67d0\u4e2a\u7f51\u7edc\u534f\u8bae\u4ee5\u5b8c\u6210\u672c\u5c42\u529f\u80fd<\/span><\/strong><\/li>\n
  • \u8ba1\u7b97\u673a\u7f51\u7edc\u4f53\u7cfb\u7ed3\u6784<\/strong><\/span>\u662f\u8ba1\u7b97\u673a\u7f51\u7edc\u7684\u5404\u5c42\u53ca\u5176\u534f\u8bae\u7684\u96c6\u5408<\/strong><\/span><\/li>\n
  • \u7b2cn\u5c42\u5728\u5411n+1\u5c42\u63d0\u4f9b\u670d\u52a1\u65f6\uff0c\u8f9e\u670d\u52a1\u4e0d\u4ec5\u5305\u542b\u7b2cn\u5c42\u672c\u8eab\u7684\u529f\u80fd\uff0c \u8fd8\u5305\u542b\u7531\u4e0b\u5c42\u63d0\u4f9b\u7684\u529f\u80fd<\/span><\/strong><\/li>\n
  • \u4ec5\u4ec5\u5728\u76f8\u90bb\u5c42\u95f4\u6709\u63a5\u53e3\uff0c\u4e14\u6240\u63d0\u4f9b\u7684\u670d\u52a1\u5177\u4f53\u7ec6\u8282\u5bf9\u4e0a\u4e00\u5c42\u5b8c\u5168\u5c4f\u853d<\/strong><\/span><\/li>\n
  • \u4f53\u7cfb\u7ed3\u6784\u662f\u62bd\u8c61\u7684<\/strong><\/span>\uff0c\u5b9e\u73b0\u662f\u6307\u80fd\u8fd0\u884c\u7684\u4e00\u4e9b\u8f6f\u4ef6\u548c\u786c\u4ef6<\/li>\n<\/ul>\n

     <\/p>\n

    OSI\u53c2\u8003\u6a21\u578b<\/p>\n

    \u7269\u7406\u5c42\u3001\u6570\u636e\u94fe\u8def\u5c42\u3001\u7f51\u7edc\u5c42<\/span>\u3001\u4f20\u8f93\u5c42\u3001\u4f1a\u8bdd\u5c42\u3001\u8868\u793a\u5c42\u3001\u5e94\u7528\u5c42\u00a0<\/span><\/p>\n

    \u6570\u636e\u901a\u4fe1\uff08\u901a\u4fe1\u5b50\u7f51\uff09 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0 \u6570\u636e\u5904\u7406\uff08\u8d44\u6e90\u5b50\u7f51\uff09<\/p>\n

     <\/p>\n

    \u901a\u4fe1\u8fc7\u7a0b<\/p>\n

    \u6570\u636e\u94fe\u8def\u5c42\u52a0\u5934\u5c3e<\/p>\n

    \u4e0a\u9762\u56db\u5c42\u662f\u7aef\u5230\u7aef\u3001\u4e0b\u9762\u56db\u5c42\u662f\u70b9\u5230\u70b9<\/p>\n","protected":false},"excerpt":{"rendered":"

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