{"id":3911,"date":"2021-05-08T09:40:19","date_gmt":"2021-05-08T01:40:19","guid":{"rendered":"http:\/\/www.comtest.cn\/?p=3911"},"modified":"2021-06-29T10:19:42","modified_gmt":"2021-06-29T02:19:42","slug":"%e6%af%94%e7%89%b9%e8%af%af%e7%a0%81%e7%8e%87-ber","status":"publish","type":"post","link":"http:\/\/www.comtest.com.cn\/?p=3911","title":{"rendered":"\u6bd4\u7279\u8bef\u7801\u7387 (BER)"},"content":{"rendered":"<h1 class=\"wp-block-heading\">\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5<\/h1><p>\u6bd4\u7279\u8bef\u7801\u7387 (BER) \u662f\u5bf9\u901a\u4fe1\u4fe1\u53f7\u5b8c\u6574\u6027\u7684\u4e00\u79cd\u5ea6\u91cf\uff0c\u5b83\u57fa\u4e8e\u9519\u8bef\u63a5\u6536\u7684\u4f20\u8f93\u6bd4\u7279\u7684\u6570\u91cf\u6216\u767e\u5206\u6bd4\u3002\u672c\u8d28\u4e0a\uff0c\u9519\u8bef\u6bd4\u7279\u8d8a\u591a\uff0c\u5bf9\u4fe1\u53f7\u8d28\u91cf\u7684\u5f71\u54cd\u5c31\u8d8a\u5927\u3002\u6bd4\u7279\u8bef\u7801\u7387\u662f\u5b8c\u6574\u7684\u7aef\u5230\u7aef\u6027\u80fd\u7684\u6709\u6548\u6307\u6807\uff0c\u56e0\u4e3a\u5b83\u5305\u62ec\u63a5\u6536\u673a\u548c\u53d1\u5c04\u673a\u4ee5\u53ca\u5b83\u4eec\u4e4b\u95f4\u7684\u5a92\u4f53\u3002<\/p><h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5 (BERT)\uff1f<\/h2><p>\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5 (BERT) \u53ef\u7528\u4e8e\u91cf\u5316\u5149\u7ea4\u7f51\u7edc\u3001\u4ee5\u592a\u7f51\u6216\u4efb\u4f55\u5176\u4ed6\u7528\u4e8e\u4f20\u8f93\u6570\u636e\u7684\u7cfb\u7edf\u7684 BER\u3002\u5728\u6267\u884c\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u65f6\uff0c\u9884\u5148\u5b9a\u4e49\u7684\u6570\u636e\u6d41\u901a\u8fc7\u7f51\u7edc\u94fe\u8def\u8f93\u5165\u53d1\u9001\uff0c\u7136\u540e\u5bf9\u63a5\u6536\u7aef\u94fe\u8def\u7684\u8f93\u51fa\u8fdb\u884c\u5206\u6790\uff0c\u4ee5\u8bc4\u4f30\u5728\u7ed9\u5b9a\u7684\u65f6\u95f4\u8303\u56f4\u5185\u68c0\u6d4b\u5230\u7684\u9519\u8bef\u6570\u4e0e\u4f20\u8f93\u7684\u6bd4\u7279\u6570\u3002<\/p><p>\u4f2a\u968f\u673a\u4e8c\u8fdb\u5236\u5e8f\u5217 (PRBS) \u53ef\u7528\u4e8e\u521b\u5efa\u6570\u636e\u4f20\u8f93\u6a21\u5f0f\uff0c\u8fd9\u79cd\u6a21\u5f0f\u53ef\u80fd\u4f1a\u4ea7\u751f\u5404\u79cd\u4f4d\u6a21\u5f0f\uff0c\u4ece\u800c\u5bfc\u81f4\u9519\u8bef\u3002\u8fd9\u79cd\u8bf1\u5bfc\u8bef\u5dee\u7684\u52a0\u901f\u5bf9\u4e8e\u51cf\u5c11 BER \u6d4b\u8bd5\u65f6\u95f4\u662f\u6709\u7528\u7684\uff0c\u4f46\u662f\u53ea\u80fd\u5728\u505c\u7528\u7684\u7ebf\u8def\u4e0a\u4f7f\u7528\u3002\u65e0\u8bba\u60a8\u662f\u5728\u9a8c\u8bc1\u81ea\u5df1\u7f51\u7edc\u7684\u6027\u80fd\uff0c\u8fd8\u662f\u4e3a\u5ba2\u6237\u6216\u5ba2\u6237\u7aef\u6267\u884c\u670d\u52a1\u6fc0\u6d3b\uff0cBERT \u90fd\u662f\u786e\u4fdd\u6574\u4f53\u7f51\u7edc\u5b8c\u6574\u6027\u7684\u6709\u6548\u65b9\u6cd5\u3002<\/p><h1 class=\"wp-block-heading\">\u6bd4\u7279\u8bef\u7801\u7387\u6027\u80fd\u6307\u6807<\/h1><p>\u6bd4\u7279\u8bef\u7801\u7387\u7684\u8ba1\u7b97\u65b9\u6cd5\u662f\u5c06\u9519\u8bef\u63a5\u6536\u7684\u6bd4\u7279\u6570\u9664\u4ee5\u5728\u540c\u4e00\u65f6\u95f4\u6bb5\u5185\u53d1\u9001\u7684\u6bd4\u7279\u603b\u6570\u300210<sup>-9<\/sup> \u7684\u7ed3\u679c\u901a\u5e38\u88ab\u8ba4\u4e3a\u662f\u5bf9\u4e8e\u7535\u4fe1\u53ef\u63a5\u53d7\u7684\u6bd4\u7279\u8bef\u7801\u7387\uff0c\u800c 10<sup>-13<\/sup> \u662f\u5bf9\u4e8e\u6570\u636e\u4f20\u8f93\u66f4\u5408\u9002\u7684\u6700\u5c0f BER\u3002\u5982\u679c\u5bf9\u8be5\u6bd4\u7387\u5efa\u7acb\u4e86\u8db3\u591f\u7684\u7f6e\u4fe1\u5ea6\uff0c\u5b83\u4e5f\u53ef\u4ee5\u8868\u793a\u4e3a\u5c06\u6765\u53d1\u751f\u9519\u8bef\u7684\u6982\u7387 (Pe)\u3002\u9ad8\u6548\u7684\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u4eea\u53ef\u4ee5\u5bf9\u51e0\u4e2a\u5173\u952e\u6027\u80fd\u6307\u6807 (KPI) \u8fdb\u884c\u670d\u52a1\u6fc0\u6d3b\u6d4b\u8bd5\u3002<\/p><h2 class=\"wp-block-heading\">\u4e22\u5305<\/h2><p>\u4e0e\u6bd4\u7279\u8bef\u7801\u7387\u5bc6\u5207\u76f8\u5173\u7684\u662f\u5206\u7ec4\u5dee\u9519\u7387 (PER)\u3002\u7531\u4e8e\u6bcf\u4e2a\u6570\u636e\u5305\u672c\u8d28\u4e0a\u662f\u4f4d\u7684\u96c6\u5408\uff0c\u5982\u679c BER \u4e3a\u6240\u6709\u4e58\u5ba2\u786e\u5b9a\u4e86\u76f8\u540c\u7684\u6bd4\u7387\uff0c\u90a3\u4e48 PER \u7c7b\u4f3c\u4e8e\u672a\u5230\u8fbe\u76ee\u7684\u5730\u7684\u516c\u5171\u6c7d\u8f66\u7684\u6bd4\u7387\u3002\u6d4b\u91cf\u4e22\u5305\u662f\u81f3\u5173\u91cd\u8981\u7684\uff0c\u56e0\u4e3a\u6570\u636e\u5305\u7684\u5927\u91cf\u4e22\u5931\u4f1a\u5bfc\u81f4\u670d\u52a1\u53d8\u6162\u6216\u7f51\u7edc\u4e2d\u65ad\u3002\u7f51\u7edc\u62e5\u585e\u3001\u8bbe\u5907\u8fc7\u5ea6\u4f7f\u7528\u548c\u7f51\u7edc\u786c\u4ef6\u95ee\u9898\uff08\u4f8b\u5982\u8fc7\u65f6\u7684\u9632\u706b\u5899\uff09\u662f\u9020\u6210\u4e22\u5305\u7684\u4e00\u4e9b\u539f\u56e0\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e22\u5305\u4e5f\u53ef\u80fd\u662f\u5b89\u5168\u95ee\u9898\u7684\u4e3b\u8981\u6307\u6807\uff0c\u5305\u62ec\u62d2\u7edd\u670d\u52a1 (DOS) \u653b\u51fb\u3002<\/p><h2 class=\"wp-block-heading\">\u5ef6\u8fdf<\/h2><p>\u7f51\u7edc\u6027\u80fd\u4e2d\u7684\u5ef6\u8fdf\u662f\u5bf9\u5ef6\u8fdf\u7684\u4e00\u79cd\u5ea6\u91cf\uff0c\u5b83\u53ef\u4ee5\u6839\u636e\u6570\u636e\u4ece\u4e00\u4e2a\u4f4d\u7f6e\u4f20\u8f93\u5230\u53e6\u4e00\u4e2a\u4f4d\u7f6e\u6240\u82b1\u8d39\u7684\u65f6\u95f4\u8fdb\u884c\u91cf\u5316\u3002\u5ef6\u8fdf\u662f\u4e00\u79cd\u91cd\u8981\u7684\u670d\u52a1\u8d28\u91cf\u5ea6\u91cf\uff0c\u56e0\u4e3a\u9ad8\u5ef6\u8fdf\u53ef\u80fd\u5bfc\u81f4\u74f6\u9888\uff0c\u4ece\u800c\u5bfc\u81f4 VoIP \u8d28\u91cf\u4f4e\u4e0b\uff0c\u5e76\u901a\u5e38\u4f1a\u5bfc\u81f4\u901a\u4fe1\u7f13\u6162\u3002\u8fc7\u957f\u7684\u5ef6\u8fdf\u4e5f\u4f1a\u76f4\u63a5\u5f71\u54cd\u541e\u5410\u91cf\uff0c\u56e0\u4e3a\u5b83\u4f1a\u5bfc\u81f4 TCP \u7a97\u53e3\u586b\u5145\u592a\u6162\u3002\u9020\u6210\u7f51\u7edc\u5ef6\u8fdf\u7684\u5e38\u89c1\u56e0\u7d20\u5305\u62ec\u5149\u7ea4\u94fa\u8bbe\u957f\u5ea6\u3001\u5b58\u50a8\u5ef6\u8fdf\u548c\u8def\u7531\u5668\/\u4ea4\u6362\u9519\u8bef\u3002<\/p><h2 class=\"wp-block-heading\">\u6296\u52a8<\/h2><p>\u7531\u4e8e\u5ef6\u8fdf\u4e0d\u4e00\u81f4\uff0c\u6bcf\u4e2a\u6570\u636e\u5305\u4ece\u5f00\u59cb\u5230\u7ed3\u675f\u9700\u8981\u7684\u65f6\u95f4\u7565\u6709\u4e0d\u540c\u3002\u6296\u52a8\u88ab\u5b9a\u4e49\u4e3a\u901a\u8fc7\u7f51\u7edc\u63a5\u6536\u7684\u6570\u636e\u5305\u5ef6\u8fdf\u7684\u5dee\u5f02\u3002\u6570\u636e\u5305\u4e4b\u95f4\u7684\u5dee\u5f02\u592a\u5927\u53ef\u80fd\u662f\u6709\u5bb3\u7684\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u8bed\u97f3\u548c\u89c6\u9891\u4f20\u8f93\uff0c\u670d\u52a1\u5668\u5fc5\u987b\u8865\u507f\u8fd9\u79cd\u6296\u52a8\uff0c\u4ee5\u4f7f\u5a92\u4f53\u53ef\u8bc6\u522b\u3002<\/p><p>\u8fc7\u5ea6\u6296\u52a8\u4f1a\u5bfc\u81f4\u62e5\u585e\u6216\u4e22\u5305\uff0c\u8d85\u51fa\u4e86\u6570\u5b57\u4fe1\u53f7\u5904\u7406\u5668 (DSP) \u7684\u5904\u7406\u80fd\u529b\u3002\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u97f3\u9891\u4fe1\u53f7\u4e22\u5931\u6216\u89c6\u9891\u4f20\u8f93\u50cf\u7d20\u5316\u3002<\/p><h1 class=\"wp-block-heading\">\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u7684\u91cd\u8981\u6027<\/h1><p>\u968f\u7740\u4ee5\u592a\u7f51\u5bf9\u5e26\u5bbd\u548c\u6027\u80fd\u8981\u6c42\u7684\u65e5\u76ca\u63d0\u9ad8\uff0cBERT \u5df2\u7ecf\u6210\u4e3a\u91cf\u5316\u5149\u7ea4\u901a\u4fe1\u4fe1\u9053\u4e2d\u6bd4\u7279\u8bef\u7801\u7387\u548c\u5efa\u7acb\u9ad8\u901f\u4e1a\u52a1\u6fc0\u6d3b\u4fe1\u5fc3\u7684\u5173\u952e\u3002BERT \u5bf9\u5185\u90e8\u548c\u5916\u90e8\u5ba2\u6237\u90fd\u5341\u5206\u91cd\u8981\u3002<\/p><p>\u5728\u5185\u90e8\u7f51\u7edc\u4e0a\u6267\u884c BERT \u6d4b\u8bd5\u53ef\u4ee5\u786e\u4fdd\u5e72\u51c0\u9ad8\u6548\u7684\u8fd0\u884c\uff0c\u5c24\u5176\u662f\u5728\u90e8\u7f72\u627f\u8f7d\u9ad8\u6d41\u91cf\u7684\u5927\u578b\u7ebf\u8def\u65f6\u3002\u6b64\u5916\uff0c\u8d2d\u4e70\u9ad8\u901f\u7f51\u7edc\u7684\u5ba2\u6237\u4ece\u7b2c\u4e00\u5929\u8d77\u5c31\u671f\u5f85\u4f18\u826f\u7684\u6027\u80fd\u3002\u6bd4\u7279\u9519\u8bef\u7387\u6d4b\u8bd5\u53ef\u4ee5\u7528\u6765\u8ba4\u8bc1\u65b0\u7f51\u7edc\u7684\u8fd0\u884c\uff0c\u4ece\u800c\u63d0\u9ad8\u5ba2\u6237\u6ee1\u610f\u5ea6\u6c34\u5e73\u3002<\/p><p>\u5149\u7ea4\u7f51\u7edc\u4e2d\u7684\u6bd4\u7279\u8bef\u7801\u53ef\u80fd\u662f\u7531\u8870\u51cf\u3001\u8272\u6563\u548c\u8bb8\u591a\u5176\u4ed6\u6839\u672c\u539f\u56e0\u9020\u6210\u7684\uff0c\u4f46\u4ee5\u592a\u7f51\u9519\u8bef\u68c0\u67e5\u548c\u7ea0\u6b63\u4f8b\u7a0b\u53ef\u80fd\u4f1a\u63a9\u76d6\u7f51\u7edc\u56fa\u6709\u7684\u7269\u7406\u95ee\u9898\uff0c\u5bfc\u81f4\u4e00\u4e9b\u4eba\u5f97\u51fa\u7ed3\u8bba\uff0c\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u5149\u7ea4\u94fe\u8def\u4e0d\u9700\u8981 BERT\u3002\u76f8\u53cd\uff0c\u7531\u6bd4\u7279\u8bef\u7801\u5bfc\u81f4\u7684\u91cd\u4f20\u6570\u636e\u5305\u4f1a\u6709\u6548\u5730\u622a\u65ad\u541e\u5410\u91cf\u6027\u80fd\uff0c\u5e76\u4e14\u65e0\u610f\u4e2d\u5bfc\u81f4\u62e5\u585e\u95ee\u9898\u3002\u867d\u7136\u7f51\u7edc\u53ef\u80fd\u770b\u8d77\u6765\u8fd0\u884c\u5f97\u5f88\u597d\uff0c\u4f46\u5ffd\u7565\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u7684\u6f5c\u5728\u540e\u679c\u5305\u62ec\u7f3a\u4e4f\u6df1\u5165\u7684\u7cfb\u7edf\u6027\u80fd\u53ef\u89c1\u6027\u548c\u5931\u53bb\u9884\u6fc0\u6d3b\u7ea0\u6b63\u7684\u673a\u4f1a\u3002<\/p><h1 class=\"wp-block-heading\">\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u7684\u7c7b\u578b<\/h1><p>\u5df2\u7ecf\u5f00\u53d1\u4e86\u51e0\u79cd\u4ee5\u592a\u7f51\u548c\u670d\u52a1\u6fc0\u6d3b\u65b9\u6cd5\u7684 BERT \u6d4b\u8bd5\uff0c\u6bcf\u79cd\u6d4b\u8bd5\u90fd\u6709\u5176\u56fa\u6709\u7684\u4f18\u70b9\u548c\u5c40\u9650\u6027\u3002\u867d\u7136\u4e00\u4e9b\u6d4b\u8bd5\u8fc7\u7a0b\u975e\u5e38\u9002\u5408\u7279\u5b9a\u7684\u5e94\u7528\uff0c\u4f46\u662f\u5176\u4ed6\u6d4b\u8bd5\u8fc7\u7a0b\u63d0\u4f9b\u4e86\u5bf9\u7f51\u7edc\u94fe\u8def\u670d\u52a1\u8d28\u91cf\u7684\u66f4\u4e00\u822c\u7684\u8bc4\u4f30\u3002<\/p><h2 class=\"wp-block-heading\">BERT \u6d4b\u8bd5\u4e0e RFC 2544<\/h2><p>RFC 2544 \u6d4b\u8bd5\u662f\u7531 IETF \u4e8e 1999 \u5e74\u5f00\u53d1\u7684\uff0c\u7528\u4e8e\u5728\u5b9e\u9a8c\u5ba4\u73af\u5883\u4e2d\u5bf9\u7f51\u7edc\u5143\u4ef6\u8fdb\u884c\u57fa\u51c6\u6d4b\u8bd5\u3002\u6b64\u6d4b\u8bd5\u65b9\u6cd5\u9002\u7528\u4e8e\u73b0\u573a\u4f7f\u7528\uff0c\u56e0\u4e3a\u63d0\u4f9b\u5546\u65e0\u6cd5\u4f7f\u7528\u5176\u4ed6\u6807\u51c6\u5316\u7684\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u670d\u52a1\u6fc0\u6d3b\u6d4b\u8bd5\u3002\u6807\u9898\u201c\u7f51\u7edc\u4e92\u8fde\u8bbe\u5907\u7684\u57fa\u51c6\u6d4b\u8bd5\u65b9\u6cd5\u201d\u6070\u5f53\u5730\u63cf\u8ff0\u4e86\u8be5\u6d4b\u8bd5\u53ca\u5176\u5728 OSI \u6a21\u578b\u4e2d\u8bc4\u4f30\u7b2c 2 \u5c42\u7684\u9884\u671f\u7528\u9014\u3002<\/p><p>\u8be5\u6d4b\u8bd5\u53d1\u5c55\u6210\u4e3a\u9488\u5bf9\u5355\u670d\u52a1\u4ee5\u592a\u7f51\u548c IP \u7684\u884c\u4e1a\u6807\u51c6\u670d\u52a1\u6fc0\u6d3b\u6d4b\u8bd5\uff0c\u5305\u62ec\u541e\u5410\u91cf\u3001\u7a81\u53d1\u80fd\u529b\u3001\u5e27\u4e22\u5931\u548c\u5ef6\u8fdf KPI\u3002VIAVI \u7684\u589e\u5f3a\u7248 RFC 2544 \u6d4b\u8bd5\u534f\u8bae\u901a\u8fc7\u540c\u65f6\u8fd0\u884c\u591a\u9879\u6d4b\u8bd5\u5c06\u6d4b\u8bd5\u65f6\u95f4\u51cf\u5c11\u4e86 66%\u3002<\/p><h2 class=\"wp-block-heading\">Y.1564<\/h2><p>Y.1564 \u6807\u51c6\u662f\u4e3a\u73b0\u573a\u4f7f\u7528\u800c\u5f00\u53d1\u7684\uff0c\u5b83\u5728\u4e00\u6b21\u6d4b\u8bd5\u4e2d\u63d0\u4f9b\u4e86\u5bf9\u4ee5\u592a\u7f51\u670d\u52a1\u6c34\u5e73\u534f\u8bae (SLA) \u7684\u5b8c\u6574\u9a8c\u8bc1\u3002Y.1564 \u662f\u591a\u4e1a\u52a1\u4ee5\u592a\u7f51\u548c IP\uff08\u4e5f\u79f0\u4e3a\u201c\u4e09\u7f51\u878d\u5408\u201d\uff09\u7684\u884c\u4e1a\u6807\u51c6\u4e1a\u52a1\u6fc0\u6d3b\u6d4b\u8bd5\u3002\u8be5\u6d4b\u8bd5\u5728 OSI \u6a21\u578b\u7684\u6570\u636e\u94fe\u8def\u5c42 2 \u4e0a\u6267\u884c\u3002\u4e0e RFC 2544 \u4e0d\u540c\uff0cY.1564 \u5c06 KPI \u4e0e\u9884\u671f\u6c34\u5e73\u8fdb\u884c\u6bd4\u8f83\uff0c\u800c\u4e0d\u662f\u7b80\u5355\u5730\u91cf\u5316\u6700\u5927\u80fd\u529b\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u4e00\u4e2a\u7ebf\u8def\u4e0a\u72ec\u7acb\u6d4b\u8bd5\u591a\u4e2a\u903b\u8f91\u6d41\u3002\u4e0e\u57ce\u57df\u4ee5\u592a\u7f51\u8bba\u575b (MEF) 10.2 \u5b9a\u4e49\u4e00\u81f4\u7684\u6d4b\u8bd5\u6d41\u7528\u4e8e\u5728\u6d4b\u8bd5\u671f\u95f4\u6a21\u62df\u771f\u5b9e\u4e16\u754c\u7684\u7f51\u7edc\u6d41\u91cf\u573a\u666f\u3002<\/p><h2 class=\"wp-block-heading\">RFC 6349<\/h2><p>\u867d\u7136 RFC 2544 \u548c Y.1564 \u5df2\u88ab\u8bc1\u660e\u662f\u6709\u6548\u7684\uff0c\u4f46\u5b83\u4eec\u4e0d\u5305\u62ec\u4f20\u8f93\u63a7\u5236\u534f\u8bae (TCP) \u6216\u5e94\u7528\u5c42\u4e0a\u7684\u6027\u80fd\u6d4b\u8bd5\u3002\u7531\u4e8e\u5927\u591a\u6570\u57fa\u4e8e Web \u6216\u57fa\u4e8e\u4e91\u7684\u5e94\u7528\u7a0b\u5e8f\u90fd\u662f\u901a\u8fc7 TCP \u8fd0\u884c\u7684\uff0c\u56e0\u6b64&nbsp;IETF RFC 6349&nbsp;\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u522b\u7684\u6d4b\u8bd5\u9009\u9879\u3002RFC 6349 \u7684\u6307\u6807\u5305\u62ec\u4f20\u8f93\u63a7\u5236\u534f\u8bae\u4f20\u8f93\u65f6\u95f4\u3001TCP \u6548\u7387\uff08\u57fa\u4e8e\u91cd\u4f20\u5360\u603b TCP \u51c0\u8377\u5b57\u8282\u7684\u767e\u5206\u6bd4\uff09\u548c\u7f13\u51b2\u5ef6\u8fdf\u767e\u5206\u6bd4 (BDP)\uff0c\u540e\u8005\u5c06 TCP \u4f20\u8f93\u671f\u95f4\u7684\u5f80\u8fd4\u65f6\u95f4 (RTT) \u4e0e\u65e0\u7f51\u7edc\u62e5\u585e\u60c5\u51b5\u4e0b\u5efa\u7acb\u7684\u57fa\u7ebf\u8fdb\u884c\u6bd4\u8f83\u3002<\/p><h1 class=\"wp-block-heading\">\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u8bbe\u5907<\/h1><p>BERT \u6d4b\u8bd5\u5de5\u5177\u548c\u8bbe\u5907\u7684\u53d1\u5c55\u53cd\u6620\u4e86\u6d4b\u8bd5\u8fc7\u7a0b\u4ece\u5b9e\u9a8c\u5ba4\u8bbe\u7f6e\u5230\u5236\u9020\u518d\u5230\u73b0\u573a\u7684\u8fdb\u5c55\u3002\u4e0d\u540c\u7684 VIAVI \u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u8bbe\u5907\u4ea7\u54c1\u901a\u8fc7\u5b9e\u9a8c\u5ba4\u8bbe\u5907\u3001\u624b\u6301\u5f0f\u8bbe\u5907\u548c\u673a\u67b6\u5b89\u88c5\u5f0f\u6d4b\u8bd5\u8bbe\u5907\u652f\u6301\u8fd9\u4e00\u4e0d\u95f4\u65ad\u7684\u8fdb\u5c55\u94fe\u6761\u3002<\/p><p>\u5728\u5b9e\u9a8c\u5ba4\u4e2d\uff0c\u5de5\u7a0b\u5e08\u548c\u79d1\u5b66\u5bb6\u8981\u6c42\u6d4b\u8bd5\u89e3\u51b3\u65b9\u6848\u5177\u5907\u5f00\u53d1\u548c\u6d4b\u8bd5\u5c16\u7aef\u7f51\u7edc\u8bbe\u5907\u548c\u7ec4\u4ef6\u6240\u9700\u7684\u901a\u7528\u6027\u3001\u53ef\u6269\u5c55\u6027\u548c\u6a21\u5757\u5316\u3002ONT \u4ea7\u54c1\u7cfb\u5217\u5305\u542b\u591a\u79cd\u5e94\u7528\u6a21\u5757\uff0c\u5168\u90e8\u901a\u8fc7\u529f\u80fd\u5f3a\u5927\u7684\u89e6\u6478\u5c4f GUI \u64cd\u4f5c\u3002\u6240\u6709\u4e3b\u6d41\u5149\u4f20\u8f93\u6280\u672f\u7684\u5f00\u53d1\u4eba\u5458\u90fd\u53ef\u4ee5\u5229\u7528\u8fd9\u79cd\u7075\u6d3b\u6027\u6765\u6a21\u62df\u5f02\u5e38\u7684\u6d41\u91cf\u548c\u9519\u8bef\u60c5\u51b5\uff0c\u5e76\u5168\u9762\u8bc4\u4f30\u65b0\u8bbe\u8ba1\u7684\u7f51\u7edc\u7ec4\u4ef6\uff0c\u8fd9\u4e9b\u7ec4\u4ef6\u6700\u9ad8\u7684\u5de5\u4f5c\u901f\u5ea6\u53ef\u8fbe 400G \u53ca\u66f4\u9ad8\u3002<\/p><p>\u968f\u7740\u65b0\u7684\u7f51\u7edc\u4ea7\u54c1\u4ece\u7814\u53d1\u9636\u6bb5\u8fc7\u6e21\u5230\u751f\u4ea7\u9636\u6bb5\uff0cONT \u7cfb\u5217\u53ef\u4ee5\u4fc3\u8fdb\u590d\u6742\u7684\u7cfb\u7edf\u9a8c\u8bc1\u6d4b\u8bd5 (SVT)\u3002\u4ece\u4f4e\u5bb9\u91cf\u5230\u6574\u4e2a\u4ea7\u54c1\u751f\u547d\u5468\u671f\uff0c\u9ad8\u6548\u4f7f\u7528\u7535\u6e90\u548c\u81ea\u52a8\u5316\u652f\u6301\u4f7f ONT \u7cfb\u5217\u540c\u6837\u975e\u5e38\u9002\u5408\u751f\u4ea7\u6d4b\u8bd5\u3002<\/p><h2 class=\"wp-block-heading\">\u624b\u6301\u5f0f\u8bbe\u5907<\/h2><p>\u4e3a\u4e86\u5b8c\u6210\u4ece\u5b9e\u9a8c\u5ba4\u6982\u5ff5\u5316\u5230\u73b0\u573a\u5b8c\u5168\u90e8\u7f72\u7f51\u7edc\u7684\u8fc7\u7a0b\uff0c\u7d27\u51d1\u578b\u3001\u529f\u80fd\u5f3a\u5927\u7684\u624b\u6301\u5f0f\u7f51\u7edc\u6d4b\u8bd5\u4eea\u5177\u6709\u6e05\u6670\u7684\u901a\u8fc7\/\u672a\u901a\u8fc7\u7ed3\u679c\uff0c\u53ef\u786e\u4fdd\u7f51\u7edc\u548c\u8bbe\u5907\u7684\u6210\u529f\u6fc0\u6d3b\u548c\u7ef4\u62a4\u3002<\/p><p>MTS-5800-100G&nbsp;\u662f\u5c0f\u5de7\u7684\u624b\u6301\u5f0f 100G \u591a\u529f\u80fd\u4e00\u4f53\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u4eea\uff0c\u4e0e SAMComplete \u6d4b\u8bd5\u89e3\u51b3\u65b9\u6848\u914d\u5408\u4f7f\u7528\u65f6\uff0c\u8fd8\u80fd\u5b9e\u73b0\u5feb\u901f\u7684 RFC 2544 \u548c Y.1564 \u670d\u52a1\u6fc0\u6d3b\u6d4b\u8bd5\u3002\u6b64\u6d4b\u8bd5\u4eea\u5668\u652f\u6301 RFC 6349 TrueSpeed \u6d4b\u8bd5\u548c\u8bb8\u591a\u5176\u4ed6\u6d4b\u8bd5\u5e94\u7528\uff0c\u5305\u62ec\u5149\u7ea4\u94fe\u8def\u7279\u5f81\u5206\u6790\u548c\u540c\u6b65\u6d4b\u8bd5\u3002<\/p><p>MTS-5800&nbsp;\u662f\u4e00\u6b3e\u624b\u6301\u5f0f 10G \u7f51\u7edc\u6d4b\u8bd5\u4eea\uff0c\u4e5f\u53ef\u7528\u4e8e\u81ea\u52a8\u4ee5\u592a\u7f51\u670d\u52a1\u6fc0\u6d3b\u3002MTS \u7cfb\u5217\u901a\u8fc7\u591a\u70b9\u89e6\u63a7\u5c4f\u5e55\u548c\u811a\u672c\u5316\u5de5\u4f5c\u6d41\uff0c\u9488\u5bf9\u73b0\u573a\u6548\u7387\u8fdb\u884c\u4e86\u5168\u9762\u4f18\u5316\u3002\u63a5\u53e3\u5177\u6709\u9ad8\u5ea6\u53ef\u6269\u5c55\u6027\uff0c\u53ef\u642d\u914d\u53ef\u9009 OTDR\u3001\u5149\u529f\u7387\u8ba1\u548c\u5149\u7ea4\u7aef\u9762\u68c0\u6d4b\u6a21\u5757\u4f7f\u7528\u3002<\/p><h2 class=\"wp-block-heading\">\u673a\u67b6\u5b89\u88c5\u5f0f\/\u5b9e\u9a8c\u5ba4\u8bbe\u5907<\/h2><p>\u7aef\u5230\u7aef BERT \u901a\u5e38\u9700\u8981\u6280\u672f\u4eba\u5458\u5728\u7ebf\u8def\u4e24\u7aef\u914d\u5907\u624b\u6301\u5f0f\u4eea\u5668\u3002\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\uff0c\u6570\u636e\u4e2d\u5fc3\u53ef\u7528\u4e8e\u6267\u884c\u8fd9\u4e00\u6d4b\u8bd5\u7684\u8d44\u6e90\u6709\u9650\u3002\u5bf9\u4e8e\u8fd9\u4e9b\u60c5\u51b5\uff0c\u673a\u67b6\u5f0f\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u8bbe\u5907\u53ea\u80fd\u4ece\u7ebf\u8def\u7684\u4e00\u7aef\u8fdb\u884c\u6d4b\u8bd5\u3002MAP-2100&nbsp;\u6d4b\u8bd5\u4eea\u9488\u5bf9\u7ebf\u901f\u7387\u4e3a 1G \u81f3 100G \u7684\u8fdc\u7a0b\u65e0\u4eba\u503c\u5b88\u4ee5\u592a\u7f51\u6d4b\u8bd5\u8fdb\u884c\u4e86\u4f18\u5316\u3002\u5fc5\u8981\u65f6\uff0c\u8fd8\u53ef\u4ee5\u5b8c\u5168\u8fdc\u7a0b\u5b8c\u6210 BERT\uff0c\u5728\u6bcf\u4e2a\u4f4d\u7f6e\u4f7f\u7528 MAP-2100\uff0c\u901a\u8fc7\u5b89\u5168\u901a\u4fe1\u4fe1\u9053\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p><h1 class=\"wp-block-heading\">\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u6559\u7a0b<\/h1><p>\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\u7684\u597d\u5904\u662f\u591a\u65b9\u9762\u7684\uff0c\u5c3d\u7ba1\u5b8c\u6210\u6d4b\u8bd5\u6709\u65f6\u88ab\u8ba4\u4e3a\u662f\u4e00\u4e2a\u8270\u5de8\u800c\u9ad8\u5ea6\u590d\u6742\u7684\u8fc7\u7a0b\u3002VIAVI \u901a\u8fc7\u521b\u5efa\u9884\u5b9a\u4e49\u7684\u6d4b\u8bd5\u4f8b\u7a0b\u548c\u914d\u7f6e\uff0c\u4f7f\u6267\u884c BER \u6d4b\u8bd5\u53d8\u5f97\u66f4\u5bb9\u6613\u3001\u66f4\u5feb\u3001\u66f4\u76f4\u89c2\u3002<\/p><h1 class=\"wp-block-heading\">\u60a8\u662f\u5426\u9700\u8981\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5\uff1f<\/h1><p>\u4ece\u7aef\u5230\u7aef\u7f51\u7edc\u6027\u80fd\u6d4b\u8bd5\u4e2d\u83b7\u5f97\u7684\u5b9d\u8d35\u7684\u7ecf\u9a8c\u7ed3\u679c\u66fe\u7ecf\u9700\u8981\u5927\u91cf\u7684\u65f6\u95f4\u3001\u8bbe\u5907\u548c\u4eba\u529b\u6765\u751f\u6210\uff0c\u4f46\u73b0\u5728\u4e0d\u518d\u662f\u8fd9\u6837\u4e86\u3002\u81ea\u52a8\u5316\u6d4b\u8bd5\u4f8b\u7a0b\u3001\u7528\u6237\u53cb\u597d\u3001\u7d27\u51d1\u7684\u8bbe\u5907\u548c\u5d2d\u65b0\u7684\u6d4b\u8bd5\u534f\u8bae\u6781\u5927\u5730\u63d0\u9ad8\u4e86\u6548\u7387\uff0c\u6d88\u9664\u4e86\u66fe\u7ecf\u4f7f BERT 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