{"id":478962,"date":"2023-08-09T09:40:56","date_gmt":"2023-08-09T09:40:56","guid":{"rendered":""},"modified":"2023-09-05T11:17:54","modified_gmt":"2023-09-05T11:17:54","slug":"session-layer","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/session-layer\/","title":{"rendered":"\u4f1a\u8bdd\u5c42"},"content":{"rendered":"

\u4f1a\u8bdd\u5c42\u662f OSI\uff08\u5f00\u653e\u7cfb\u7edf\u4e92\u8fde\uff09\u6a21\u578b\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0cOSI \u6a21\u578b\u662f\u6807\u51c6\u5316\u7535\u4fe1\u6216\u8ba1\u7b97\u7cfb\u7edf\u529f\u80fd\u7684\u6982\u5ff5\u6846\u67b6\u3002\u4f1a\u8bdd\u5c42\u8d1f\u8d23\u7ba1\u7406\u548c\u534f\u8c03\u901a\u4fe1\u5e94\u7528\u7a0b\u5e8f\u6216\u8bbe\u5907\u4e4b\u95f4\u7684\u4f1a\u8bdd\u3002\u5b83\u786e\u4fdd\u6570\u636e\u4ea4\u6362\u4ee5\u6709\u5e8f\u548c\u540c\u6b65\u7684\u65b9\u5f0f\u53d1\u751f\uff0c\u7ef4\u62a4\u8fde\u63a5\u4fe1\u606f\u5e76\u5904\u7406\u4f1a\u8bdd\u5efa\u7acb\u3001\u7ef4\u62a4\u548c\u7ec8\u6b62\u3002<\/p>\n

Session\u5c42\u7684\u8d77\u6e90\u548c\u9996\u6b21\u63d0\u53ca\u7684\u5386\u53f2<\/h2>\n

OSI \u6a21\u578b\u7684\u5f00\u53d1\u59cb\u4e8e 20 \u4e16\u7eaa 70 \u5e74\u4ee3\u672b\uff0c\u5f53\u65f6\u56fd\u9645\u6807\u51c6\u5316\u7ec4\u7ec7 (ISO) \u65e8\u5728\u521b\u5efa\u6807\u51c6\u5316\u53c2\u8003\u6a21\u578b\uff0c\u4ee5\u5b9e\u73b0\u4e0d\u540c\u8ba1\u7b97\u673a\u7cfb\u7edf\u548c\u7f51\u7edc\u534f\u8bae\u4e4b\u95f4\u7684\u65e0\u7f1d\u901a\u4fe1\u3002\u4f1a\u8bdd\u5c42\u7684\u6982\u5ff5\u662f\u5728\u8be5\u6a21\u578b\u7684\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u7684\uff0c\u5176\u76ee\u6807\u662f\u89e3\u51b3\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u548c\u670d\u52a1\u7684\u4f1a\u8bdd\u7ba1\u7406\u9700\u6c42\u3002<\/p>\n

OSI \u6a21\u578b\u53ca\u5176\u4f1a\u8bdd\u5c42\u9996\u6b21\u5728 1984 \u5e74\u7684\u51fa\u7248\u7269\u201cISO 7498\uff1a\u4fe1\u606f\u5904\u7406\u7cfb\u7edf - \u5f00\u653e\u7cfb\u7edf\u4e92\u8fde - \u57fa\u672c\u53c2\u8003\u6a21\u578b\u201d\u4e2d\u6b63\u5f0f\u63cf\u8ff0\u3002\u8be5\u6587\u4ef6\u5217\u51fa\u4e86\u4e03\u5c42\u6a21\u578b\u7684\u6846\u67b6\uff0c\u5176\u4e2d\u4f1a\u8bdd\u5c42\u5360\u636e\u7b2c\u4e94\u4f4d\u3002<\/p>\n

Session\u5c42\u7684\u8be6\u7ec6\u4fe1\u606f<\/h2>\n

\u5728 OSI \u6a21\u578b\u4e2d\uff0c\u4f1a\u8bdd\u5c42\u8fd0\u884c\u5728\u4f20\u8f93\u5c42\u4e4b\u4e0a\u3001\u8868\u793a\u5c42\u4e4b\u4e0b\u3002\u5176\u4e3b\u8981\u76ee\u6807\u662f\u4fc3\u8fdb\u4e24\u4e2a\u6700\u7ec8\u7528\u6237\u5e94\u7528\u7a0b\u5e8f\u6216\u8fdb\u7a0b\u4e4b\u95f4\u7684\u901a\u4fe1\u548c\u8fde\u63a5\u7ba1\u7406\u3002\u4f1a\u8bdd\u5c42\u786e\u4fdd\u8fd9\u4e9b\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u5efa\u7acb\u3001\u7ef4\u6301\u548c\u7ec8\u6b62\u4f1a\u8bdd\uff0c\u8fd9\u662f\u5b83\u4eec\u4e4b\u95f4\u7684\u903b\u8f91\u8fde\u63a5\u3002<\/p>\n

\u4f1a\u8bdd\u5c42\u7684\u4e3b\u8981\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n

    \n
  1. \n

    \u4f1a\u8bdd\u5efa\u7acb<\/strong>\uff1a\u5f53\u4e24\u4e2a\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u901a\u4fe1\u65f6\uff0cSession\u5c42\u5efa\u7acb\u4f1a\u8bdd\u6765\u534f\u8c03\u6570\u636e\u7684\u4ea4\u6362\u3002\u5b83\u5904\u7406\u6240\u6d89\u53ca\u7684\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u7684\u4f1a\u8bdd\u53c2\u6570\u7684\u534f\u5546\u548c\u540c\u6b65\u3002<\/p>\n<\/li>\n

  2. \n

    \u6570\u636e\u5206\u5272\u548c\u91cd\u7ec4<\/strong>\uff1a\u4f1a\u8bdd\u5c42\u5728\u53d1\u9001\u7aef\u5c06\u6570\u636e\u5212\u5206\u4e3a\u53ef\u7ba1\u7406\u7684\u6bb5\uff0c\u5e76\u5728\u63a5\u6536\u7aef\u5c06\u5b83\u4eec\u91cd\u65b0\u7ec4\u5408\u3002\u8fd9\u79cd\u5206\u6bb5\u5141\u8bb8\u5927\u5757\u6570\u636e\u5728\u7f51\u7edc\u4e0a\u6709\u6548\u4f20\u8f93\u3002<\/p>\n<\/li>\n

  3. \n

    \u4f1a\u8bdd\u7ef4\u62a4<\/strong>\uff1a\u5728\u4f1a\u8bdd\u671f\u95f4\uff0c\u4f1a\u8bdd\u5c42\u8d1f\u8d23\u76d1\u63a7\u8fde\u63a5\u7684\u5065\u5eb7\u72b6\u51b5\u548c\u7a33\u5b9a\u6027\u3002\u5b83\u91c7\u53d6\u9002\u5f53\u7684\u63aa\u65bd\u6765\u7ef4\u62a4\u4f1a\u8bdd\u7684\u5b8c\u6574\u6027\uff0c\u5e76\u5728\u53d1\u751f\u4efb\u4f55\u4e2d\u65ad\u65f6\u91cd\u65b0\u5efa\u7acb\u4f1a\u8bdd\u3002<\/p>\n<\/li>\n

  4. \n

    \u4f1a\u8bdd\u7ec8\u6b62<\/strong>\uff1a\u4e00\u65e6\u901a\u4fe1\u5b8c\u6210\u6216\u88ab\u4efb\u4e00\u5e94\u7528\u7a0b\u5e8f\u7ec8\u6b62\uff0c\u4f1a\u8bdd\u5c42\u5c31\u4f1a\u786e\u4fdd\u6b63\u786e\u5173\u95ed\u4f1a\u8bdd\u5e76\u91ca\u653e\u4efb\u4f55\u5206\u914d\u7684\u8d44\u6e90\u3002<\/p>\n<\/li>\n<\/ol>\n

    Session\u5c42\u7684\u5185\u90e8\u7ed3\u6784\u3002\u4f1a\u8bdd\u5c42\u5982\u4f55\u5de5\u4f5c\u3002<\/h2>\n

    \u4f1a\u8bdd\u5c42\u7531\u591a\u79cd\u534f\u8bae\u548c\u673a\u5236\u7ec4\u6210\uff0c\u4f7f\u5176\u80fd\u591f\u6709\u6548\u5730\u6267\u884c\u5176\u529f\u80fd\u3002\u4f1a\u8bdd\u5c42\u7684\u4e3b\u8981\u7ec4\u4ef6\u5305\u62ec\uff1a<\/p>\n

      \n
    1. \n

      \u4f1a\u8bdd\u534f\u8bae<\/strong>\uff1a\u8be5\u534f\u8bae\u7ba1\u7406\u4f1a\u8bdd\u7684\u5efa\u7acb\u3001\u7ef4\u62a4\u548c\u7ec8\u6b62\u3002\u5b83\u5b9a\u4e49\u53c2\u4e0e\u4f1a\u8bdd\u7684\u5e94\u7528\u7a0b\u5e8f\u5e94\u5982\u4f55\u53d1\u8d77\u901a\u4fe1\u3001\u540c\u6b65\u6570\u636e\u4ea4\u6362\u4ee5\u53ca\u5904\u7406\u4e0e\u4f1a\u8bdd\u76f8\u5173\u7684\u4e8b\u4ef6\u3002<\/p>\n<\/li>\n

    2. \n

      \u4f1a\u8bdd\u6570\u636e\u5355\u5143 (SDU)<\/strong>\uff1aSDU \u662f\u5728\u4f1a\u8bdd\u5c42\u7684\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u4ea4\u6362\u7684\u6570\u636e\u5757\u3002\u4f1a\u8bdd\u5c42\u5c06\u4ece\u9ad8\u5c42\u5e94\u7528\u63a5\u6536\u5230\u7684\u6570\u636e\u5206\u89e3\u6210SDU\uff0c\u5e76\u5c06\u5b83\u4eec\u8f6c\u53d1\u5230\u4f20\u8f93\u5c42\u8fdb\u884c\u8fdb\u4e00\u6b65\u5904\u7406\u3002<\/p>\n<\/li>\n

    3. \n

      \u4f1a\u8bdd\u8bc6\u522b<\/strong>\uff1a\u6bcf\u4e2a\u4f1a\u8bdd\u90fd\u7531\u4f1a\u8bdd ID \u552f\u4e00\u6807\u8bc6\uff0c\u8fd9\u6709\u52a9\u4e8e\u533a\u5206\u4e00\u4e2a\u4f1a\u8bdd\u4e0e\u53e6\u4e00\u4e2a\u4f1a\u8bdd\u3002\u4f1a\u8bdd\u5c42\u4f7f\u7528\u6b64 ID \u6765\u7ba1\u7406\u591a\u4e2a\u6b63\u5728\u8fdb\u884c\u7684\u4f1a\u8bdd\u5e76\u786e\u4fdd\u6570\u636e\u5230\u8fbe\u6b63\u786e\u7684\u76ee\u7684\u5730\u3002<\/p>\n<\/li>\n<\/ol>\n

      Session\u5c42\u5173\u952e\u7279\u6027\u5206\u6790<\/h2>\n

      \u4f1a\u8bdd\u5c42\u63d0\u4f9b\u4e86\u51e0\u4e2a\u6709\u52a9\u4e8e\u9ad8\u6548\u901a\u4fe1\u548c\u8fde\u63a5\u7ba1\u7406\u7684\u57fa\u672c\u529f\u80fd\uff1a<\/p>\n

        \n
      1. \n

        \u540c\u6b65<\/strong>\uff1a\u4f1a\u8bdd\u5c42\u786e\u4fdd\u53d1\u9001\u65b9\u548c\u63a5\u6536\u65b9\u5728\u6570\u636e\u4ea4\u6362\u671f\u95f4\u4fdd\u6301\u540c\u6b65\u3002\u5b83\u7ba1\u7406\u540c\u6b65\u70b9\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u6b63\u786e\u6392\u5e8f\u3002<\/p>\n<\/li>\n

      2. \n

        \u9762\u5411\u8fde\u63a5\u7684\u901a\u4fe1<\/strong>\uff1a\u4f1a\u8bdd\u5c42\u5728\u6570\u636e\u4f20\u8f93\u524d\u5efa\u7acb\u903b\u8f91\u8fde\u63a5\u6216\u4f1a\u8bdd\uff0c\u4fdd\u8bc1\u6570\u636e\u4ea4\u6362\u53ef\u9760\u3001\u6709\u5e8f\u3002<\/p>\n<\/li>\n

      3. \n

        \u9519\u8bef\u5904\u7406<\/strong>\uff1a\u5b83\u5904\u7406\u4e0e\u4f1a\u8bdd\u76f8\u5173\u7684\u9519\u8bef\u548c\u4e2d\u65ad\uff0c\u4fc3\u8fdb\u9519\u8bef\u6062\u590d\u548c\u91cd\u65b0\u4f20\u8f93\u4e22\u5931\u6216\u635f\u574f\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n

      4. \n

        \u4f1a\u8bdd\u5b89\u5168<\/strong>\uff1a\u4f1a\u8bdd\u5c42\u53ef\u4ee5\u5408\u5e76\u5b89\u5168\u673a\u5236\u6765\u4fdd\u62a4\u4f1a\u8bdd\u671f\u95f4\u4ea4\u6362\u7684\u6570\u636e\u7684\u9690\u79c1\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<\/li>\n<\/ol>\n

        \u4f1a\u8bdd\u5c42\u7684\u7c7b\u578b<\/h2>\n

        \u4f1a\u8bdd\u5c42\u53ef\u4ee5\u6839\u636e\u5176\u529f\u80fd\u548c\u5b9e\u73b0\u8fdb\u884c\u5206\u7c7b\u3002\u4e24\u79cd\u4e3b\u8981\u7c7b\u578b\u662f\uff1a<\/p>\n

          \n
        1. \n

          \u9762\u5411\u8fde\u63a5\u7684\u4f1a\u8bdd\u5c42<\/strong>\uff1a\u5728\u8fd9\u79cd\u7c7b\u578b\u4e2d\uff0c\u4f1a\u8bdd\u5c42\u5728\u6570\u636e\u4f20\u8f93\u4e4b\u524d\u5efa\u7acb\u8fde\u63a5\uff0c\u7c7b\u4f3c\u4e8e\u7535\u8bdd\u547c\u53eb\u5efa\u7acb\u3002\u5b83\u4fdd\u8bc1\u53ef\u9760\u7684\u6570\u636e\u4f20\u8f93\u548c\u6392\u5e8f\uff0c\u4f7f\u5176\u9002\u5408\u9700\u8981\u65e0\u5dee\u9519\u901a\u4fe1\u7684\u5e94\u7528\uff0c\u4f8b\u5982\u6587\u4ef6\u4f20\u8f93\u548c\u8fdc\u7a0b\u767b\u5f55\u3002<\/p>\n<\/li>\n

        2. \n

          \u65e0\u8fde\u63a5\u4f1a\u8bdd\u5c42<\/strong>\uff1a\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u65e0\u8fde\u63a5\u4f1a\u8bdd\u5c42\u5728\u6570\u636e\u4f20\u8f93\u4e4b\u524d\u4e0d\u5efa\u7acb\u4e13\u7528\u8fde\u63a5\u3002\u6bcf\u4e2a\u6570\u636e\u5355\u5143\u5305\u542b\u8def\u7531\u6240\u9700\u7684\u4fe1\u606f\uff0c\u63a5\u6536\u65b9\u72ec\u7acb\u5904\u7406\u6570\u636e\u6bb5\u3002\u8fd9\u79cd\u7c7b\u578b\u66f4\u9002\u5408\u5b9e\u65f6\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f8b\u5982\u6d41\u5a92\u4f53\u548c\u5728\u7ebf\u6e38\u620f\uff0c\u5176\u4e2d\u901f\u5ea6\u548c\u4f4e\u5ef6\u8fdf\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/li>\n<\/ol>\n

          \u4e0b\u8868\u6bd4\u8f83\u4e86\u8fd9\u4e24\u79cd\u7c7b\u578b\u7684\u7279\u5f81\uff1a<\/p>\n\n\n\n\n\n\n\n\n
          \u6807\u51c6<\/th>\n\u9762\u5411\u8fde\u63a5\u7684\u4f1a\u8bdd\u5c42<\/th>\n\u65e0\u8fde\u63a5\u4f1a\u8bdd\u5c42<\/th>\n<\/tr>\n<\/thead>\n
          \u8fde\u63a5\u5efa\u7acb<\/td>\n\u662f\u7684<\/td>\n\u4e0d<\/td>\n<\/tr>\n
          \u6570\u636e\u53ef\u9760\u6027<\/td>\n\u9ad8\u7684<\/td>\n\u4f4e\u7684<\/td>\n<\/tr>\n
          \u9ad8\u67b6<\/td>\n\u76f8\u5bf9\u8f83\u9ad8<\/td>\n\u964d\u4f4e<\/td>\n<\/tr>\n
          \u5e94\u7528\u5b9e\u4f8b<\/td>\n\u6587\u4ef6\u4f20\u8f93\u3001\u8fdc\u7a0b\u767b\u5f55<\/td>\n\u6d41\u5a92\u4f53\u3001\u6e38\u620f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Session\u5c42\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u4e2d\u6d89\u53ca\u5230\u7684\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6cd5<\/h2>\n

          \u4f1a\u8bdd\u5c42\u7684\u529f\u80fd\u53ef\u5e94\u7528\u4e8e\u5404\u79cd\u73b0\u5b9e\u573a\u666f\uff1a<\/p>\n

            \n
          1. \n

            \u7f51\u9875\u6d4f\u89c8<\/strong>\uff1a\u5f53\u7528\u6237\u8bbf\u95ee\u7f51\u7ad9\u65f6\uff0cWeb \u6d4f\u89c8\u5668\u548c Web \u670d\u52a1\u5668\u4e4b\u95f4\u4f1a\u5efa\u7acb\u4f1a\u8bdd\u3002 Session\u5c42\u7ba1\u7406\u4f1a\u8bdd\uff0c\u4fdd\u8bc1\u7f51\u9875\u6570\u636e\u7684\u6b63\u786e\u4f20\u9012\u3002<\/p>\n<\/li>\n

          2. \n

            \u89c6\u9891\u4f1a\u8bae<\/strong>\uff1a\u89c6\u9891\u4f1a\u8bae\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u4f1a\u8bdd\u5c42\u6765\u5efa\u7acb\u548c\u7ef4\u62a4\u53c2\u4e0e\u8005\u4e4b\u95f4\u7684\u5b9e\u65f6\u901a\u4fe1\u4f1a\u8bdd\u3002<\/p>\n<\/li>\n

          3. \n

            \u6587\u4ef6\u4f20\u8f93<\/strong>\uff1a\u6587\u4ef6\u4f20\u8f93\u5e94\u7528\u7a0b\u5e8f\u4f9d\u9760\u4f1a\u8bdd\u5c42\u6765\u786e\u4fdd\u6587\u4ef6\u4ece\u4e00\u53f0\u8bbe\u5907\u53ef\u9760\u5730\u4f20\u8f93\u5230\u53e6\u4e00\u53f0\u8bbe\u5907\u3002<\/p>\n<\/li>\n<\/ol>\n

            \u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848\uff1a<\/h3>\n
              \n
            1. \n

              \u4f1a\u8bdd\u8d85\u65f6<\/strong>\uff1a\u5982\u679c\u4f1a\u8bdd\u957f\u65f6\u95f4\u4fdd\u6301\u7a7a\u95f2\u72b6\u6001\uff0c\u5219\u53ef\u80fd\u4f1a\u8d85\u65f6\uff0c\u4ece\u800c\u5bfc\u81f4\u6f5c\u5728\u7684\u4e2d\u65ad\u3002\u5b9e\u65bd\u4f1a\u8bdd\u4fdd\u6301\u6d3b\u52a8\u673a\u5236\u53ef\u4ee5\u901a\u8fc7\u5b9a\u671f\u53d1\u9001\u5c0f\u6570\u636e\u5305\u6765\u4fdd\u6301\u4f1a\u8bdd\u6d3b\u52a8\u6765\u89e3\u51b3\u6b64\u95ee\u9898\u3002<\/p>\n<\/li>\n

            2. \n

              \u4f1a\u8bdd\u52ab\u6301<\/strong>\uff1a\u653b\u51fb\u8005\u53ef\u80fd\u4f1a\u5c1d\u8bd5\u52ab\u6301\u6d3b\u52a8\u4f1a\u8bdd\u4ee5\u83b7\u5f97\u5bf9\u654f\u611f\u6570\u636e\u7684\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u3002\u5b9e\u65bd\u5b89\u5168\u4f1a\u8bdd\u7ba1\u7406\u5b9e\u8df5\uff08\u4f8b\u5982\u5f3a\u5927\u7684\u4f1a\u8bdd\u6807\u8bc6\u7b26\u548c\u52a0\u5bc6\uff09\u53ef\u4ee5\u51cf\u8f7b\u8fd9\u79cd\u98ce\u9669\u3002<\/p>\n<\/li>\n<\/ol>\n

              \u4e3b\u8981\u7279\u70b9\u53ca\u4e0e\u540c\u7c7b\u672f\u8bed\u7684\u5176\u4ed6\u6bd4\u8f83<\/h2>\n

              \u4e3a\u4e86\u4e86\u89e3\u4f1a\u8bdd\u5c42\u7684\u72ec\u7279\u4e4b\u5904\uff0c\u6211\u4eec\u5c06\u5176\u4e0e OSI \u6a21\u578b\u4e2d\u7684\u5176\u4ed6\u4e24\u4e2a\u5c42\u8fdb\u884c\u6bd4\u8f83\uff1a\u4f20\u8f93\u5c42\u548c\u8868\u793a\u5c42\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n
              \u6807\u51c6<\/th>\n\u4f1a\u8bdd\u5c42<\/th>\n\u4f20\u8f93\u5c42<\/th>\n\u8868\u793a\u5c42<\/th>\n<\/tr>\n<\/thead>\n
              \u5c42\u6570<\/td>\n\u7b2c\u4e94\u540d<\/td>\n\u7b2c\u56db\u540d<\/td>\n\u7b2c\u516d\u540d<\/td>\n<\/tr>\n
              \u529f\u80fd<\/td>\n\u7ba1\u7406\u548c\u534f\u8c03\u4f1a\u8bae<\/td>\n\u7ba1\u7406\u7aef\u5230\u7aef\u6570\u636e\u4ea4\u4ed8<\/td>\n\u6570\u636e\u683c\u5f0f\u5316\u548c\u52a0\u5bc6<\/td>\n<\/tr>\n
              \u6570\u636e\u5355\u5143<\/td>\n\u4f1a\u8bdd\u6570\u636e\u5355\u5143 (SDU)<\/td>\n\u4f20\u8f93\u534f\u8bae\u6570\u636e\u5355\u5143 (TPDU)<\/td>\n\u8868\u793a\u534f\u8bae\u6570\u636e\u5355\u5143<\/td>\n<\/tr>\n
              \u8fde\u63a5\u5efa\u7acb<\/td>\n\u5efa\u7acb\u4f1a\u8bae<\/td>\n\u5efa\u7acb\u8fde\u63a5<\/td>\n\u4e0d\u9002\u7528<\/td>\n<\/tr>\n
              \u9519\u8bef\u5904\u7406<\/td>\n\u5904\u7406\u4e0e\u4f1a\u8bdd\u76f8\u5173\u7684\u9519\u8bef<\/td>\n\u5904\u7406\u6570\u636e\u4f20\u8f93\u9519\u8bef<\/td>\n\u4e0d\u9002\u7528<\/td>\n<\/tr>\n
              \u6570\u636e\u5206\u5272<\/td>\n\u5728\u4f1a\u8bdd\u7ea7\u522b\u5206\u6bb5\u6570\u636e<\/td>\n\u5728\u4f20\u8f93\u7ea7\u522b\u5206\u6bb5\u6570\u636e<\/td>\n\u4e0d\u9002\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \u4e0eSession\u5c42\u76f8\u5173\u7684\u672a\u6765\u524d\u666f\u548c\u6280\u672f<\/h2>\n

              \u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u4f1a\u8bdd\u5c42\u53ef\u80fd\u4f1a\u89c1\u8bc1\u8fdb\u6b65\u548c\u53d8\u5316\uff0c\u4ee5\u9002\u5e94\u65b0\u7684\u901a\u4fe1\u8303\u5f0f\u548c\u6311\u6218\u3002\u4e00\u4e9b\u6f5c\u5728\u7684\u672a\u6765\u53d1\u5c55\u5305\u62ec\uff1a<\/p>\n

                \n
              1. \n

                \u52a0\u5f3a\u5b89\u5168\u63aa\u65bd<\/strong>\uff1a\u968f\u7740\u5bf9\u5b89\u5168\u901a\u4fe1\u7684\u9700\u6c42\u4e0d\u65ad\u589e\u52a0\uff0c\u4f1a\u8bdd\u5c42\u53ef\u80fd\u4f1a\u91c7\u7528\u66f4\u5148\u8fdb\u7684\u52a0\u5bc6\u548c\u8eab\u4efd\u9a8c\u8bc1\u65b9\u6cd5\u6765\u5e94\u5bf9\u65b0\u51fa\u73b0\u7684\u5b89\u5168\u5a01\u80c1\u3002<\/p>\n<\/li>\n

              2. \n

                5G \u53ca\u4ee5\u4e0a<\/strong>\uff1a5G \u548c\u672a\u6765\u51e0\u4ee3\u65e0\u7ebf\u7f51\u7edc\u7684\u51fa\u73b0\u5c06\u9700\u8981\u66f4\u9ad8\u6548\u7684\u4f1a\u8bdd\u7ba1\u7406\u6280\u672f\u6765\u5904\u7406\u5927\u91cf\u6d8c\u5165\u7684\u6570\u636e\u548c\u8fde\u63a5\u8bbe\u5907\u3002<\/p>\n<\/li>\n

              3. \n

                \u7269\u8054\u7f51\u548c\u8fb9\u7f18\u8ba1\u7b97<\/strong>\uff1a\u968f\u7740\u7269\u8054\u7f51 (IoT) \u548c\u8fb9\u7f18\u8ba1\u7b97\u7684\u91cd\u8981\u6027\uff0c\u4f1a\u8bdd\u5c42\u53ef\u80fd\u4f1a\u9002\u5e94\u652f\u6301\u7269\u8054\u7f51\u8bbe\u5907\u53ca\u5176\u901a\u4fe1\u9700\u6c42\u7684\u72ec\u7279\u8981\u6c42\u3002<\/p>\n<\/li>\n<\/ol>\n

                \u5982\u4f55\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6216\u5982\u4f55\u5c06\u4ee3\u7406\u670d\u52a1\u5668\u4e0e\u4f1a\u8bdd\u5c42\u5173\u8054<\/h2>\n

                \u4ee3\u7406\u670d\u52a1\u5668\u5728\u589e\u5f3a\u7f51\u7edc\u901a\u4fe1\u7684\u5b89\u5168\u6027\u3001\u9690\u79c1\u6027\u548c\u6027\u80fd\u65b9\u9762\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5b83\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u4e0e\u4f1a\u8bdd\u5c42\u5173\u8054\uff1a<\/p>\n

                  \n
                1. \n

                  \u4f1a\u8bdd\u7ba1\u7406<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u4ee3\u8868\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7ba1\u7406\u4f1a\u8bdd\uff0c\u63d0\u9ad8\u8fde\u63a5\u53ef\u9760\u6027\u5e76\u5904\u7406\u4e0e\u4f1a\u8bdd\u76f8\u5173\u7684\u4efb\u52a1\u3002<\/p>\n<\/li>\n

                2. \n

                  \u8d1f\u8f7d\u5747\u8861<\/strong>\uff1a\u4ee3\u7406\u53ef\u4ee5\u8de8\u591a\u4e2a\u670d\u52a1\u5668\u5206\u914d\u4f20\u5165\u6d41\u91cf\uff0c\u6709\u6548\u5e73\u8861\u8d1f\u8f7d\u5e76\u4f18\u5316\u4f1a\u8bdd\u6027\u80fd\u3002<\/p>\n<\/li>\n

                3. \n

                  \u7f13\u5b58<\/strong>\uff1a\u4ee3\u7406\u53ef\u4ee5\u5b58\u50a8\u7ecf\u5e38\u8bbf\u95ee\u7684\u6570\u636e\uff0c\u51cf\u5c11\u91cd\u590d\u8bf7\u6c42\u7684\u9700\u8981\u5e76\u52a0\u5feb\u4f1a\u8bdd\u6570\u636e\u4f20\u9012\u3002<\/p>\n<\/li>\n

                4. \n

                  \u533f\u540d<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5145\u5f53\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u4e2d\u4ecb\uff0c\u5728\u4f1a\u8bdd\u671f\u95f4\u4fdd\u6301\u5ba2\u6237\u7aef\u7684\u533f\u540d\u6027\u3002<\/p>\n<\/li>\n<\/ol>\n

                  \u76f8\u5173\u94fe\u63a5<\/h2>\n

                  \u6709\u5173\u4f1a\u8bdd\u5c42\u53ca\u5176\u5728\u7f51\u7edc\u4e2d\u7684\u4f5c\u7528\u7684\u66f4\u591a\u4fe1\u606f\uff1a<\/p>\n

                    \n
                  1. OSI \u6a21\u578b\u6982\u8ff0<\/a><\/li>\n
                  2. ISO\/IEC 7498-1:1994 \u2013 \u4fe1\u606f\u6280\u672f \u2013 \u5f00\u653e\u7cfb\u7edf\u4e92\u8fde \u2013 \u57fa\u672c\u53c2\u8003\u6a21\u578b\uff1a\u57fa\u672c\u6a21\u578b<\/a><\/li>\n
                  3. \u4e86\u89e3\u4ee3\u7406\u670d\u52a1\u5668<\/a><\/li>\n<\/ol>\n

                    \u603b\u4e4b\uff0c\u4f1a\u8bdd\u5c42\u5728\u7ba1\u7406\u901a\u4fe1\u4f1a\u8bdd\u548c\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u6216\u8bbe\u5907\u4e4b\u95f4\u53ef\u9760\u7684\u6570\u636e\u4ea4\u6362\u65b9\u9762\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5176\u4f1a\u8bdd\u5efa\u7acb\u3001\u540c\u6b65\u548c\u9519\u8bef\u5904\u7406\u7b49\u529f\u80fd\u5bf9\u4e8e\u9ad8\u6548\u3001\u5b89\u5168\u7684\u6570\u636e\u4f20\u8f93\u81f3\u5173\u91cd\u8981\u3002\u968f\u7740\u6280\u672f\u7684\u8fdb\u6b65\uff0c\u4f1a\u8bdd\u5c42\u5c06\u4e0d\u65ad\u53d1\u5c55\uff0c\u4ee5\u9002\u5e94\u4e0d\u65ad\u53d8\u5316\u7684\u901a\u4fe1\u6280\u672f\u683c\u5c40\u548c\u73b0\u4ee3\u7f51\u7edc\u73af\u5883\u7684\u9700\u6c42\u3002\u4ee3\u7406\u670d\u52a1\u5668\u5177\u6709\u7ba1\u7406\u4f1a\u8bdd\u3001\u589e\u5f3a\u5b89\u5168\u6027\u548c\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u7684\u80fd\u529b\uff0c\u8865\u5145\u4e86\u4f1a\u8bdd\u5c42\u7684\u529f\u80fd\uff0c\u4f7f\u5176\u6210\u4e3a\u5f53\u4eca\u4e92\u8fde\u4e16\u754c\u4e2d\u7684\u5b9d\u8d35\u8d44\u4ea7\u3002<\/p>","protected":false},"featured_media":478963,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478962","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Session Layer: Facilitating Communication and Connection Management<\/mark>","faq_items":[{"question":"What is the Session layer?","answer":"

                    The Session layer is a crucial component of the OSI model, responsible for managing and coordinating sessions between communicating applications or devices. It ensures orderly and synchronized data exchange, handling session establishment, maintenance, and termination.<\/p>"},{"question":"How did the Session layer originate?","answer":"

                    The Session layer was conceptualized during the development of the OSI model in the late 1970s. It was first formally described in the publication \"ISO 7498: Information processing systems - Open Systems Interconnection - Basic Reference Model\" in 1984.<\/p>"},{"question":"What are the key functions of the Session layer?","answer":"

                    The Session layer's primary functions include session establishment, data segmentation and reassembly, session maintenance, and session termination.<\/p>"},{"question":"How does the Session layer work internally?","answer":"

                    The Session layer consists of a session protocol, session data units (SDUs), and session identification mechanisms to facilitate proper data exchange and connection management.<\/p>"},{"question":"What are the types of Session layers?","answer":"

                    There are two main types of Session layers: connection-oriented and connectionless. The former establishes a connection before data transfer, while the latter does not.<\/p>"},{"question":"Where is the Session layer used?","answer":"

                    The Session layer finds application in various scenarios, such as web browsing, video conferencing, and file transfer.<\/p>"},{"question":"What are some common problems related to the Session layer?","answer":"

                    Common issues with the Session layer include session timeouts and session hijacking. Solutions include implementing keep-alive mechanisms and secure session management practices.<\/p>"},{"question":"How does the Session layer compare to the Transport and Presentation layers?","answer":"

                    The Session layer is responsible for managing sessions between applications, while the Transport layer handles end-to-end data delivery, and the Presentation layer deals with data formatting and encryption.<\/p>"},{"question":"What are the future perspectives of the Session layer?","answer":"

                    In the future, the Session layer may see advancements in security measures, adaptation to 5G and beyond, and support for IoT and edge computing.<\/p>"},{"question":"How are proxy servers associated with the Session layer?","answer":"

                    Proxy servers can manage sessions, perform load balancing, caching, and preserve client anonymity, making them valuable assets in conjunction with the Session layer.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/478962","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/478962\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/478963"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=478962"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}