{"id":3556,"date":"2020-05-06T23:28:34","date_gmt":"2020-05-06T15:28:34","guid":{"rendered":"https:\/\/www.59xuexi.com\/?p=3556"},"modified":"2020-05-06T23:45:38","modified_gmt":"2020-05-06T15:45:38","slug":"%e8%a7%a3%e6%9e%90%e5%8d%8e%e4%b8%badatacom%e8%ae%a4%e8%af%81%ef%bc%9a%e4%bb%8empls%e5%88%b0sr%e7%9a%84%e6%bc%94%e8%bf%9b%e4%b9%8b%e8%b7%af","status":"publish","type":"post","link":"https:\/\/www.59xuexi.com\/?p=3556","title":{"rendered":"\u89e3\u6790\u534e\u4e3aDatacom\u8ba4\u8bc1\uff1a\u4eceMPLS\u5230SR\u7684\u6f14\u8fdb\u4e4b\u8def"},"content":{"rendered":"<section>\u534e\u4e3aDatacom\u8ba4\u8bc1\u5df2\u4e8e4\u670818\u65e5\u6b63\u5f0f\u53d1\u5e03\uff0c\u5927\u5bb6\u90fd\u77e5\u9053\uff0c\u5168\u65b0\u7684Datacom\u8ba4\u8bc1\u5728\u4f20\u7edf\u8def\u7531\u4ea4\u6362\u6280\u672f\u57fa\u7840\u4e4b\u4e0a\uff0c\u878d\u5408\u4e86\u534e\u4e3a\u6570\u901a\u7f51\u7edc\u89e3\u51b3\u65b9\u6848\u3001\u7f51\u7edc\u65b0\u6280\u672f\u3002\u4e0b\u9762\u6211\u4eec\u5c31\u901a\u8fc7\u4e00\u7bc7\u6587\u7ae0\uff0c\u6765\u770bDatacom\u8ba4\u8bc1\u4e2d\u7684\u65b0\u77e5\u8bc6\u70b9\uff0c\u4eceMPLS\u5230SR\u7684\u6f14\u8fdb\u3002<\/section>\n<section><\/section>\n<section>\u5728\u201c\u4e91\u7f51\u4e00\u4f53\u5316\u201d\u7684\u80cc\u666f\u4e0b\uff0c\u9aa8\u5e72\u7f51\u4ee5\u53ca\u6570\u636e\u4e2d\u5fc3\u7f51\u7edc\u7b49\u573a\u666f\u8981\u6c42\u7f51\u7edc\u66f4\u52a0\u7075\u6d3b\u3001\u53ef\u9760\u3001\u667a\u80fd\u3002\u6570\u636e\u4e2d\u5fc3\u7ec4\u7f51\u4ece\u201c\u4e24\u5730\u4e09\u4e2d\u5fc3\u201d\u5230\u201c\u5206\u5e03\u5f0f\u591a\u6d3b\u201d\u7684\u67b6\u6784\uff0c\u9700\u8981\u5bf9\u5404\u7c7b\u4e1a\u52a1\u6d41\u91cf\u8fdb\u884c\u5b9e\u65f6\u7684\u8c03\u5ea6\u3001\u4f18\u5316\uff0c\u800c\u4f20\u7edfIP\u8f6c\u53d1\u5b58\u5728\u8bf8\u591a\u7f3a\u9677\uff0c\u4e0d\u80fd\u6ee1\u8db3\u4e0a\u8ff0\u9700\u6c42\u3002MPLS\u6280\u672f\u7684\u51fa\u73b0\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u89e3\u51b3\u4e86IP\u8f6c\u53d1\u7684\u7f3a\u9677\uff0c\u4f46\u662f\u5728\u5b9e\u73b0\u6d41\u91cf\u5de5\u7a0b\u7b49\u65b9\u9762\u4ecd\u7136\u663e\u5f97\u201c\u529b\u4e0d\u4ece\u5fc3\u201d\uff0c\u800cSR\u6280\u672f\u7684\u6a2a\u7a7a\u51fa\u4e16\u53ef\u4ee5\u8bf4\u662f\u8fce\u5408SDN\u65f6\u4ee3\u7684\u9769\u65b0\u3002<\/section>\n<section><\/section>\n<section><\/section>\n<section><\/section>\n<section><strong>\u4f20\u7edfIP\u8def\u7531\u8f6c\u53d1\u5b58\u5728\u4ec0\u4e48\u7f3a\u9677\uff1f<img title=\"\u89e3\u6790\u534e\u4e3aDatacom\u8ba4\u8bc1\uff1a\u4eceMPLS\u5230SR\u7684\u6f14\u8fdb\u4e4b\u8def\u7684\u56fe\u7247\" alt=\"\u4ec0\u4e48\u662f\u534e\u4e3aDatacom\u8ba4\u8bc1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.59xuexi.com\/wp-content\/uploads\/2020\/05\/WechatIMG312.jpeg\" width=\"600\" height=\"362\"><\/strong><\/section>\n<section><\/section>\n<section><\/section>\n<section>\u901a\u8fc7\u4e0a\u56fe\uff0c\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\u5f53\u4e00\u4e2a\u6570\u636e\u5305\u5230\u8fbe\u8def\u7531\u5668\u7684\u65f6\u5019\uff0c\u8def\u7531\u5668\u6839\u636e\u76ee\u7684\u5730\u5740\u67e5\u8be2IP\u8def\u7531\u8868\u8fdb\u884c\u6570\u636e\u8f6c\u53d1\uff0c\u8fd9\u79cd\u8f6c\u53d1\u65b9\u5f0f\u9700\u8981\u6bcf\u53f0\u8def\u7531\u5668\u901a\u8fc7\u6700\u957f\u63a9\u7801\u5339\u914d\u539f\u5219\u8fdb\u884c\u9010\u8df3\u8f6c\u53d1\u3002\u65e9\u671f\u8def\u7531\u5668\u786c\u4ef6\u6027\u80fd\u6709\u9650\uff0c\u5bfc\u81f4\u8fd9\u79cd\u67e5\u8868\u65b9\u5f0f\u7684\u8f6c\u53d1\u6548\u7387\u76f8\u5bf9\u4f4e\u4e0b\uff1b\u800c\u73b0\u5728\u7684\u8def\u7531\u5668\u56e0\u4e3a\u4e13\u7528\u82af\u7247\uff08ASIC\u3001NP\uff09\u53ef\u4ee5\u5b9e\u73b0\u786c\u4ef6\u8f6c\u53d1\uff0c\u8f6c\u53d1\u6548\u7387\u5f97\u5230\u5927\u5e45\u63d0\u5347\u3002<\/section>\n<section>\u4f46\u662fIP\u8def\u7531\u8f6c\u53d1\u91c7\u7528\u65e0\u8fde\u63a5\u7684\u8f6c\u53d1\u65b9\u5f0f\u5374\u5e26\u6765\u4e86\u65b0\u7684\u95ee\u9898\uff1a<\/section>\n<section><\/section>\n<section>1\u3001\u914d\u7f6eBGP\u7b49\u534f\u8bae\u8de8\u8bbe\u5907\u4f20\u9012\u8def\u7531\uff0c\u53ef\u80fd\u51fa\u73b0\u8def\u7531\u9ed1\u6d1e\uff1b<\/section>\n<section>2\u3001\u65e0\u6cd5\u63d0\u4f9b\u8f83\u597d\u7684\u7aef\u5230\u7aefQoS\u4fdd\u8bc1\u6216\u8005\u7075\u6d3b\u7684\u6d41\u91cf\u5de5\u7a0b\u3002<\/section>\n<section><\/section>\n<section>\u4f55\u4e3a\u8def\u7531\u9ed1\u6d1e\uff1f<\/section>\n<section><\/section>\n<section>\u591a\u6570\u636e\u4e2d\u5fc3\u3001\u4f01\u4e1a\u5206\u652f\u4e92\u8054\u7b49\u5927\u89c4\u6a21\u7ec4\u7f51\u573a\u666f\uff0cBGP\u8fb9\u754c\u7f51\u5173\u534f\u8bae\u5fc5\u4e0d\u53ef\u5c11\uff0c\u800c\u4f20\u7edfIP\u8f6c\u53d1\u7684\u65b9\u5f0f\u4f1a\u5bfc\u81f4BGP\u8def\u7531\u9ed1\u6d1e\uff0c\u5982\u4e0b\u56fe\u573a\u666f\u3002<\/section>\n<section><\/section>\n<section><\/section>\n<section><img title=\"\u89e3\u6790\u534e\u4e3aDatacom\u8ba4\u8bc1\uff1a\u4eceMPLS\u5230SR\u7684\u6f14\u8fdb\u4e4b\u8def\u7684\u56fe\u7247\" alt=\"\u4ec0\u4e48\u662f\u534e\u4e3aDatacom\u8ba4\u8bc1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.59xuexi.com\/wp-content\/uploads\/2020\/05\/WechatIMG313.jpeg\" width=\"600\" height=\"159\"><\/section>\n<section><\/section>\n<section><\/section>\n<section>\u8def\u7531\u4f20\u9012\u8fc7\u7a0b\uff1aAS100\u4e2d\u7684\u8bbe\u5907R1\u5c06Net1\u7684\u8def\u7531\u501f\u52a9BGP\uff08\u8def\u7531\u642c\u8fd0\u5de5\uff09\u4f20\u9012\u7ed9R2\uff0cR2\u7ee7\u7eed\u501f\u52a9BGP \u201c\u9694\u7a7a\u4f20\u7269\u201d\u5c06\u8def\u7531\u76f4\u63a5\u4f20\u9012\u7ed9R4\uff0c\u6700\u7ec8R4\u4f20\u9012\u7ed9AS300\u4e2d\u7684R5\u3002<\/section>\n<section><\/section>\n<section>\u6570\u636e\u8f6c\u53d1\u8fc7\u7a0b\uff1aAS300\u4e2d\u5b58\u5728\u4e1a\u52a1\u9700\u8981\u8bbf\u95eeNet1,\u4e8e\u662fR5\u5c06\u6570\u636e\u62a5\u6587\u53d1\u9001\u7ed9R4\uff0cR4\u9700\u8981\u5c06\u6570\u636e\u62a5\u6587\u53d1\u7ed9R2\uff0c\u4f46\u662f\u771f\u5b9e\u8f6c\u53d1\u8def\u5f84\u9700\u8981\u53d1\u9001\u7ed9R3\uff0c\u8fd8\u8bb0\u5f97\u4e0a\u6587\u63d0\u5230\u7684IP\u8def\u7531\u8f6c\u53d1\u65b9\u5f0f\u5417\uff1fR3\u56e0\u4e3a\u6ca1\u6709Net1\u5bf9\u5e94\u7684\u8def\u7531\uff0c\u76f4\u63a5\u4e22\u5f03\u62a5\u6587\uff0c\u8def\u7531\u9ed1\u6d1e\u5c31\u4ea7\u751f\u4e86\u3002<\/section>\n<section><\/section>\n<section>MPLS\u591a\u534f\u8bae\u6807\u7b7e\u4ea4\u6362\u5982\u4f55\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff1f<\/section>\n<section><\/section>\n<section>\u4e0b\u56fe\u8bf4\u660e\u4e86\u5178\u578b\u7684MPLS\u7f51\u7edc\u7ec4\u7f51\u67b6\u6784\u548c\u6570\u636e\u8f6c\u53d1\u65b9\u5f0f\uff1a<\/section>\n<section><\/section>\n<section><img title=\"\u89e3\u6790\u534e\u4e3aDatacom\u8ba4\u8bc1\uff1a\u4eceMPLS\u5230SR\u7684\u6f14\u8fdb\u4e4b\u8def\u7684\u56fe\u7247\" alt=\"\u4ec0\u4e48\u662f\u534e\u4e3aDatacom\u8ba4\u8bc1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.59xuexi.com\/wp-content\/uploads\/2020\/05\/7aef80114fe43280041c51b525d347ea.jpg\" width=\"600\" height=\"200\"><\/section>\n<section><\/section>\n<section>\u9996\u5148Ingress\u5165\u53e3\u8bbe\u5907RTA\u4e0a\u5b58\u5728\u53bb\u5f804.4.4.4\u7684LSP\u96a7\u9053\uff0c\u5219\u5728\u539f\u59cb\u6570\u636e\u5305\u4e2dPUSH\u538b\u51651027\u6807\u7b7e\uff08\u6807\u7b7e\u4f4d\u4e8e\u4e8c\u5c42\u548c\u4e09\u5c42\u5934\u90e8\u4e4b\u95f4\uff09\uff0c\u8fdb\u5165\u5230\u5bf9\u5e94\u7684LSP\u96a7\u9053\uff1b<\/section>\n<section><\/section>\n<section>\u7136\u540eRTB\u3001RTC\u4f5c\u4e3aTransit\u4f20\u8f93\u8282\u70b9\u76f4\u63a5\u6267\u884c\u76f8\u5e94\u7684SWAP\u4ea4\u6362\u52a8\u4f5c\u8fdb\u884c\u6807\u7b7e\u8f6c\u53d1\uff1b<\/section>\n<section><\/section>\n<section>\u6700\u540eRTD\u4f5c\u4e3aEgress\u51fa\u53e3\u8bbe\u5907\u6267\u884c\u6807\u7b7ePOP\u5f39\u51fa\u52a8\u4f5c\uff0c\u7ee7\u800c\u67e5\u8be2IP\u8def\u7531\u8868\u8fdb\u884c\u6b63\u786e\u7684\u6570\u636e\u8f6c\u53d1\u3002<\/section>\n<section><\/section>\n<section>\u5047\u8bbe\u4e0a\u8ff0\u8def\u7531\u9ed1\u6d1e\u573a\u666f\u4e2d\uff0cR4\u4e0a\u5b58\u5728\u53bb\u5f80R2\u7684LSP\u96a7\u9053\uff0c\u76f4\u63a5\u4e3a\u6570\u636e\u62a5\u6587\u5c01\u88c5\u76f8\u5e94\u7684\u6807\u7b7e\uff0c\u800c\u6cbf\u9014\u8bbe\u5907\u76f4\u63a5\u901a\u8fc7MPLS\u6807\u7b7e\u8f6c\u53d1\uff0c\u4e0d\u518d\u67e5\u8be2IP\u8def\u7531\u8868\uff0c\u95ee\u9898\u662f\u4e0d\u662f\u5c31\u8fce\u5203\u800c\u89e3\u5566\uff1f<\/section>\n<section><\/section>\n<section><\/section>\n<section><img title=\"\u89e3\u6790\u534e\u4e3aDatacom\u8ba4\u8bc1\uff1a\u4eceMPLS\u5230SR\u7684\u6f14\u8fdb\u4e4b\u8def\u7684\u56fe\u7247\" alt=\"\u4ec0\u4e48\u662f\u534e\u4e3aDatacom\u8ba4\u8bc1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.59xuexi.com\/wp-content\/uploads\/2020\/05\/6d0e5cd0723e5fb2de4786b73e249f86.jpg\" width=\"600\" height=\"170\"><\/section>\n<section>&nbsp;<\/section>\n<section>MPLS\u771f\u9999\uff0cSegment Routing\u53c8\u662f\u5565\uff1f<\/section>\n<section><\/section>\n<section>\u5982\u679c\u90e8\u7f72MPLS\uff0c\u6211\u4eec\u9700\u8981\u4f20\u7edf\u7684IGP\u5185\u90e8\u7f51\u5173\u534f\u8bae\u5b9e\u73b0\u8def\u7531\u53ef\u8fbe\uff0c\u518d\u901a\u8fc7LDP\u6807\u7b7e\u534f\u8bae\u8fdb\u884c\u6807\u7b7e\u7684\u5206\u914d\u548c\u901a\u544a\uff0c\u8fd9\u65e0\u7591\u589e\u52a0\u4e86\u63a7\u5236\u5c42\u9762\u90e8\u7f72\u7684\u590d\u6742\u6027\uff0c\u800c\u4e14IGP\u548cLDP\u8fd9\u54e5\u4fe9\u54ea\u4e00\u4e2a\u53d1\u813e\u6c14\uff0c\u90fd\u5f88\u6298\u817e\u4eba\u3002<\/section>\n<section><\/section>\n<section>\u6240\u4ee5Segment Routing\u7b80\u79f0SR\u6280\u672f\u76f4\u63a5\u5bf9\u73b0\u6709IGP\u8fdb\u884c\u6269\u5c55\uff0c\u4f7f\u5f97IS-IS\u3001OSPF\u7b49\u534f\u8bae\u4e5f\u5177\u5907\u4e86\u6807\u7b7e\u5206\u53d1\u80fd\u529b\uff0c\u4ece\u800c\u7b80\u5316\u63a7\u5236\u5c42\u9762\uff0c\u51e1\u4e8bIGP\u8bf4\u4e86\u7b97\uff0c\u4e5f\u5c31\u4e0d\u62c5\u5fc3LDP\u95f9\u60c5\u7eea\u4e86\u3002<\/section>\n<section><\/section>\n<section>\u4e0b\u56fe\u7684\u6570\u636e\u62a5\u6587\u5185\u5bb9\uff0c\u5c55\u793a\u4e86IS-IS\u534f\u8bae\u5982\u4f55\u901a\u8fc7\u7279\u6b8aTLV\u6765\u652f\u6301\u6807\u7b7e\u5206\u53d1\uff1a<\/section>\n<section><\/section>\n<section><img title=\"\u89e3\u6790\u534e\u4e3aDatacom\u8ba4\u8bc1\uff1a\u4eceMPLS\u5230SR\u7684\u6f14\u8fdb\u4e4b\u8def\u7684\u56fe\u7247\" alt=\"\u4ec0\u4e48\u662f\u534e\u4e3aDatacom\u8ba4\u8bc1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.59xuexi.com\/wp-content\/uploads\/2020\/05\/d94e299702bc4d87e208669e4c08051c.jpg\" width=\"600\" 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