{"id":439,"date":"2024-04-19T09:30:01","date_gmt":"2024-04-19T09:30:01","guid":{"rendered":"https:\/\/blog.devops955.com\/swain\/?p=439"},"modified":"2024-04-19T09:30:01","modified_gmt":"2024-04-19T09:30:01","slug":"ccnp-encor-architecture","status":"publish","type":"post","link":"https:\/\/blog.devops955.com\/swain\/zh\/2024\/04\/19\/ccnp-encor-architecture\/","title":{"rendered":"CCNP ENCOR 350-401 &#8211; Part 1 Architecture"},"content":{"rendered":"<h1>Explain the different design principles used in an enterprise network<\/h1>\n<h2>High-level enterprise network design such as 2-tier, 3-tier, fabric, and cloud<\/h2>\n<h3>2-Tier\u67b6\u6784<\/h3>\n<ul>\n<li><strong>\u6838\u5fc3\u5c42<\/strong>\uff1a\u8d1f\u8d23\u9ad8\u901f\u5730\u5904\u7406\u548c\u8f6c\u53d1\u6570\u636e\uff0c\u901a\u5e38\u6d89\u53ca\u9ad8\u5bb9\u91cf\u7684\u80cc\u677f\u548c\u8fde\u63a5\uff0c\u4ee5\u652f\u6301\u6574\u4e2a\u4f01\u4e1a\u7f51\u7edc\u7684\u6570\u636e\u6d41\u3002<\/li>\n<li><strong>\u63a5\u5165\u5c42<\/strong>\uff1a\u76f4\u63a5\u4e0e\u7ec8\u7aef\u7528\u6237\u8bbe\u5907\uff08\u5982\u5de5\u4f5c\u7ad9\u3001\u6253\u5370\u673a\u7b49\uff09\u76f8\u8fde\uff0c\u662f\u7528\u6237\u8bbf\u95ee\u7f51\u7edc\u8d44\u6e90\u7684\u5165\u53e3\u70b9\u3002<br \/>\n<a href=\"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/image-2-1.png\" data-rel=\"lightbox-image-0\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img decoding=\"async\" src=\"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/image-2-1.png\" alt=\"\" \/><\/a><\/li>\n<\/ul>\n<h3>3-Tier\u67b6\u6784<\/h3>\n<p>3-Tier\u67b6\u6784\u57282-Tier\u7684\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u4e00\u4e2a\u5206\u914d\u5c42\uff08\u6216\u805a\u5408\u5c42\uff09\uff0c\u4f7f\u7f51\u7edc\u5206\u4e3a\u4e09\u5c42\uff1a\u6838\u5fc3\u5c42\u3001\u5206\u914d\u5c42\u548c\u63a5\u5165\u5c42\u3002<\/p>\n<ul>\n<li><strong>\u6838\u5fc3\u5c42<\/strong>\uff1a\u8d1f\u8d23\u9ad8\u901f\u5730\u5904\u7406\u548c\u8f6c\u53d1\u6570\u636e\uff0c\u901a\u5e38\u6d89\u53ca\u9ad8\u5bb9\u91cf\u7684\u80cc\u677f\u548c\u8fde\u63a5\uff0c\u4ee5\u652f\u6301\u6574\u4e2a\u4f01\u4e1a\u7f51\u7edc\u7684\u6570\u636e\u6d41\u3002<\/li>\n<li><strong>\u5206\u53d1\u5c42\/\u6c47\u805a\u5c42<\/strong>\uff1a\u5145\u5f53\u6838\u5fc3\u5c42\u548c\u63a5\u5165\u5c42\u4e4b\u95f4\u7684\u4e2d\u4ecb\uff0c\u63d0\u4f9b\u8def\u7531\u3001\u8fc7\u6ee4\u548cVLAN\uff08\u865a\u62df\u5c40\u57df\u7f51\uff09\u7684\u5212\u5206\uff0c\u589e\u52a0\u4e86\u7f51\u7edc\u7684\u7075\u6d3b\u6027\u548c\u63a7\u5236\u3002<\/li>\n<li><strong>\u63a5\u5165\u5c42<\/strong>: \u76f4\u63a5\u4e0e\u7ec8\u7aef\uff08\u5982\u4e3b\u673a\u3001\u6253\u5370\u673a\u3001\u670d\u52a1\u5668\u7b49\uff09\u76f8\u8fde\uff0c\u662f\u7528\u6237\u8bbf\u95ee\u7f51\u7edc\u8d44\u6e90\u7684\u5165\u53e3\u70b9\u3002<br \/>\n<a href=\"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/image-1-1.png\" data-rel=\"lightbox-image-1\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img decoding=\"async\" src=\"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/image-1-1.png\" alt=\"\" \/><\/a><\/li>\n<\/ul>\n<h3>Fabric<\/h3>\n<p>Fabric\u662f\u6307\u7f51\u7edc\u8bbe\u5907\uff08\u4f8b\u5982\u63a5\u5165\u70b9\u3001\u4ea4\u6362\u673a\u548c\u8def\u7531\u5668\uff09\u4e4b\u95f4\u7528\u4e8e\u4f20\u8f93\u6570\u636e\u5230\u76ee\u7684\u5730\u7684\u8fde\u63a5\u7f51\u683c\u3002\u867d\u7136\u201cfabric\u201d\u6709\u65f6\u4e5f\u53ef\u4ee5\u6307\u6784\u6210\u8fd9\u4e9b\u8fde\u63a5\u7684\u7269\u7406\u7ebf\u8def\uff0c\u4f46\u5b83\u901a\u5e38\u662f\u6307\u53e0\u52a0\u5728\u7269\u7406\u62d3\u6251\u4e4b\u4e0a\u7684\u4e00\u79cd\u865a\u62df\u5316\u3001\u81ea\u52a8\u5316\u7684\u8986\u76d6\u8fde\u63a5\u7f51\u683c\u3002<\/p>\n<ul>\n<li>\u5b83\u901a\u5e38\u6d89\u53ca\u5230\u5c06\u7f51\u7edc\u8bbe\u5907\u548c\u8d44\u6e90\u89c6\u4e3a\u4e00\u4e2a\u7edf\u4e00\u7684 Fabric\uff08\u5b57\u9762\u610f\u4e49\u662f\u5e03\u6599\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u50cf\u7ec7\u7269\u4e00\u6837\u4ea4\u7ec7\u7684\u7f51\u7edc\uff09\uff0c\u6570\u636e\u53ef\u4ee5\u4ece\u4efb\u4f55\u70b9\u8fdb\u5165\u548c\u9000\u51fa\uff0c\u901a\u8fc7\u6700\u4f73\u8def\u5f84\u52a8\u6001\u8def\u7531\u3002<\/li>\n<li>Fabric\u7279\u522b\u9002\u7528\u4e8e\u6570\u636e\u4e2d\u5fc3\u548c\u4e91\u73af\u5883\uff0c\u56e0\u4e3a\u5b83\u80fd\u591f\u6709\u6548\u5730\u5904\u7406\u5927\u91cf\u52a8\u6001\u53d8\u5316\u7684\u6d41\u91cf\u6a21\u5f0f\u548c\u5e94\u7528\u9700\u6c42\u3002<br \/>\n<a href=\"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/image-3.png\" data-rel=\"lightbox-image-2\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img decoding=\"async\" src=\"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/image-3.png\" alt=\"\" \/><\/a><\/li>\n<\/ul>\n<h3>Cloud<\/h3>\n<p>\u4e91\u67b6\u6784\u5c06\u4f01\u4e1a\u7ea7\u7f51\u7edc\u7684\u4e00\u90e8\u5206\u6216\u5168\u90e8\u57fa\u7840\u8bbe\u65bd\u5916\u5305\u7ed9\u4e91\u670d\u52a1\u63d0\u4f9b\u5546\uff0c\u901a\u8fc7\u4e92\u8054\u7f51\u63d0\u4f9b\u670d\u52a1\u548c\u8d44\u6e90\u3002<\/p>\n<ul>\n<li>\u8fd9\u79cd\u8bbe\u8ba1\u5141\u8bb8\u4f01\u4e1a\u5229\u7528\u4e91\u8ba1\u7b97\u7684\u5f39\u6027\u3001\u53ef\u6269\u5c55\u6027\u548c\u6210\u672c\u6548\u76ca\uff0c\u652f\u6301\u5404\u79cd\u5e94\u7528\uff0c\u4ece\u57fa\u7840\u8bbe\u65bd\u5373\u670d\u52a1\uff08IaaS\uff09\u5230\u5e73\u53f0\u5373\u670d\u52a1\uff08PaaS\uff09\u548c\u8f6f\u4ef6\u5373\u670d\u52a1\uff08SaaS\uff09\u3002<\/li>\n<li>\u4e91\u67b6\u6784\u8fd8\u652f\u6301\u5feb\u901f\u90e8\u7f72\u548c\u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\uff0c\u4ee5\u53ca\u5168\u7403\u5206\u5e03\u7684\u7528\u6237\u8bbf\u95ee\uff0c\u662f\u73b0\u4ee3\u4f01\u4e1a\u7f51\u7edc\u8bbe\u8ba1\u4e2d\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002<\/li>\n<\/ul>\n<h2>High availability techniques such as redundancy, FHRP, and SSO<\/h2>\n<p><strong>Redundancy<\/strong><br \/>\n\u5197\u4f59\u662f\u9ad8\u53ef\u7528\u6027\u8bbe\u8ba1\u7684\u4e00\u4e2a\u57fa\u672c\u539f\u5219\uff0c\u6307\u7684\u662f\u7cfb\u7edf\u4e2d\u5b58\u5728\u989d\u5916\u7684\u6216\u5907\u7528\u7684\u7ec4\u4ef6\u3001\u8bbe\u5907\u6216\u8fde\u63a5\uff0c\u8fd9\u4e9b\u53ef\u4ee5\u5728\u4e3b\u8981\u5143\u7d20\u5931\u8d25\u65f6\u63a5\u7ba1\uff0c\u4ece\u800c\u4fdd\u6301\u670d\u52a1\u7684\u6301\u7eed\u6027\u3002\u5197\u4f59\u53ef\u4ee5\u5e94\u7528\u4e8e\u4e0d\u540c\u7684\u5c42\u9762\uff0c\u5305\u62ec\u786c\u4ef6\uff08\u5982\u670d\u52a1\u5668\u3001\u4ea4\u6362\u673a\u3001\u8def\u7531\u5668\uff09\u3001\u7f51\u7edc\u8fde\u63a5\u3001\u7535\u6e90\u548c\u5b58\u50a8\u3002\u901a\u8fc7\u521b\u5efa\u5197\u4f59\u8def\u5f84\uff0c\u5982\u679c\u4e00\u4e2a\u8def\u5f84\u5931\u8d25\uff0c\u6570\u636e\u53ef\u4ee5\u901a\u8fc7\u53e6\u4e00\u4e2a\u8def\u5f84\u6d41\u52a8\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u5355\u70b9\u6545\u969c\u7684\u98ce\u9669\u3002<\/p>\n<p><strong>\u9996\u9009\u8def\u7531\u534f\u8bae\uff08FHRP\uff09<\/strong><br \/>\n\u9996\u9009\u8def\u7531\u534f\u8bae\uff08\u5982HSRP\u3001VRRP\uff09\u662f\u7f51\u7edc\u4e2d\u5b9e\u73b0\u5197\u4f59\u7684\u9ad8\u7ea7\u7b56\u7565\u4e4b\u4e00\uff0c\u65e8\u5728\u786e\u4fdd\u8def\u7531\u5668\u6216\u4ea4\u6362\u673a\u7684\u6301\u7eed\u53ef\u7528\u6027\u3002\u8fd9\u4e9b\u534f\u8bae\u5141\u8bb8\u591a\u53f0\u8bbe\u5907\u5728\u5b83\u4eec\u4e4b\u95f4\u5171\u4eab\u4e00\u4e2a\u865a\u62dfIP\u5730\u5740\u548cMAC\u5730\u5740\u3002\u5728\u4e3b\u8bbe\u5907\u51fa\u73b0\u6545\u969c\u65f6\uff0c\u5907\u7528\u8bbe\u5907\u53ef\u4ee5\u8fc5\u901f\u63a5\u7ba1\uff0c\u4fdd\u8bc1\u7f51\u7edc\u6d41\u91cf\u7684\u4e0d\u95f4\u65ad\u3002FHRP\u901a\u8fc7\u5728\u5173\u952e\u8bbe\u5907\u4e4b\u95f4\u63d0\u4f9b\u65e0\u7f1d\u6545\u969c\u8f6c\u79fb\uff0c\u589e\u5f3a\u4e86\u7f51\u7edc\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p><strong>Stateful Switch Over\uff08SSO\uff09<\/strong><br \/>\n\u8c08\u5230\u9ad8\u53ef\u7528\u7684SSO\u901a\u5e38\u6307<strong>Stateful SwitchOver<\/strong>\u800c\u4e0d\u662f<del>Single Sign-On<\/del>\uff0c\u8fd9\u662f\u4e00\u79cd\u9ad8\u53ef\u7528\u6027\u6280\u672f\uff0c\u7528\u4e8e\u7f51\u7edc\u8bbe\u5907\uff08\u5982\u8def\u7531\u5668\u548c\u4ea4\u6362\u673a\uff09\u4ee5\u53ca\u670d\u52a1\u5668\u548c\u5e94\u7528\u7a0b\u5e8f\u3002SSO\u5141\u8bb8\u4e3b\u5907\u7cfb\u7edf\u4e4b\u95f4\u5728\u4e3b\u7cfb\u7edf\u6545\u969c\u65f6\u65e0\u7f1d\u5730\u5207\u6362\uff0c\u540c\u65f6\u4fdd\u6301\u6d3b\u52a8\u4f1a\u8bdd\u548c\u72b6\u6001\u4fe1\u606f\u3002\u8fd9\u610f\u5473\u7740\u5728\u6545\u969c\u8f6c\u79fb\u8fc7\u7a0b\u4e2d\uff0c\u7ec8\u7aef\u7528\u6237\u51e0\u4e4e\u4e0d\u4f1a\u611f\u53d7\u5230\u4e2d\u65ad\uff0c\u56e0\u4e3a\u5907\u7528\u7cfb\u7edf\u5c06\u63a5\u7ba1\u6240\u6709\u6d3b\u52a8\u4f1a\u8bdd\u548c\u72b6\u6001\u4fe1\u606f\uff0c\u7ee7\u7eed\u5904\u7406\u8bf7\u6c42\uff0c\u5c31\u597d\u50cf\u6ca1\u6709\u53d1\u751f\u5207\u6362\u4e00\u6837\u3002<\/p>\n<h1>Describe wireless network design principles<\/h1>\n<h2>Wireless deployment models (centralized, distributed, controller-less, controller-based, cloud, remote branch)<\/h2>\n<p>\u65e0\u7ebf\u90e8\u7f72\u6a21\u578b\u5b9a\u4e49\u4e86\u65e0\u7ebf\u7f51\u7edc\u7684\u67b6\u6784\u548c\u7ba1\u7406\u65b9\u5f0f\u3002\u4e3b\u8981\u7684\u6a21\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u96c6\u4e2d\u5f0f\uff08Centralized\uff09<\/strong>: \u5728\u8fd9\u79cd\u6a21\u578b\u4e2d\uff0c\u6240\u6709AP\u90fd\u901a\u8fc7\u6709\u7ebf\u7f51\u7edc\u8fde\u63a5\u5230\u4e00\u4e2a\u4e2d\u5fc3\u90e8\u7f72\u7684\u63a7\u5236\u5668\u3002\u8fd9\u79cd\u6a21\u578b\u9002\u7528\u4e8e\u56ed\u533a\u6216\u5355\u4e00\u5927\u697c\u5185\u90e8\u7684\u90e8\u7f72\uff0c\u4fbf\u4e8e\u96c6\u4e2d\u7ba1\u7406\u548c\u90e8\u7f72\u3002<\/li>\n<li><strong>\u57fa\u4e8e\u63a7\u5236\u5668\uff08Controller-based\uff09<\/strong>: \u4e0e\u96c6\u4e2d\u5f0f\u7c7b\u4f3c\uff0c\u8fd9\u79cd\u6a21\u578b\u4f9d\u8d56\u4e00\u4e2a\u6216\u591a\u4e2a\u7269\u7406\u6216\u865a\u62df\u63a7\u5236\u5668\u6765\u7ba1\u7406\u7f51\u7edc\u3002\u63a7\u5236\u5668\u5904\u7406\u8ba4\u8bc1\u3001\u7b56\u7565\u6267\u884c\u548c\u5ba2\u6237\u7aef\u6f2b\u6e38\u7b49\u4efb\u52a1\u3002<\/li>\n<li><strong>\u5206\u5e03\u5f0f\uff08Distributed\uff09<\/strong>: \u5728\u5206\u5e03\u5f0f\u6a21\u578b\u4e2d\uff0c\u6bcf\u4e2a\u63a5\u5165\u70b9\u81ea\u884c\u5904\u7406\u6570\u636e\u5e27\u7684\u8f6c\u53d1\uff0c\u65e0\u9700\u4e2d\u592e\u63a7\u5236\u5668\u3002\u8fd9\u79cd\u6a21\u578b\u9002\u7528\u4e8e\u5730\u7406\u5206\u6563\u3001\u8282\u70b9\u591a\u7684\u73af\u5883\uff0c\u5982\u591a\u4e2a\u529e\u516c\u5ba4\u6216\u96f6\u552e\u5e97\u3002<\/li>\n<li><strong>\u65e0\u63a7\u5236\u5668\uff08Controller-less\uff09<\/strong>: \u65e0\u63a7\u5236\u5668\u6a21\u578b\u4e2d\uff0c\u63a5\u5165\u70b9\u4e0d\u4f9d\u8d56\u5916\u90e8\u63a7\u5236\u5668\u6765\u8fdb\u884c\u901a\u4fe1\u7ba1\u7406\u3002\u6bcf\u4e2aAP\u90fd\u662f\u81ea\u7ba1\u7406\u7684\uff0c\u8fd9\u7b80\u5316\u4e86\u7f51\u7edc\u7684\u914d\u7f6e\u548c\u6269\u5c55\u3002<\/li>\n<li><strong>\u4e91\uff08Cloud\uff09<\/strong>: \u4e91\u6a21\u578b\u901a\u8fc7\u4e92\u8054\u7f51\u5c06\u63a7\u5236\u5668\u529f\u80fd\u6258\u7ba1\u5728\u4e91\u5e73\u53f0\u4e0a\u3002\u8fd9\u4e3a\u7ba1\u7406\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027\uff0c\u540c\u65f6\u51cf\u5c11\u4e86\u672c\u5730\u786c\u4ef6\u9700\u6c42\u3002<\/li>\n<li><strong>\u8fdc\u7a0b\u5206\u652f\uff08Remote Branch\uff09<\/strong>: \u8fd9\u79cd\u6a21\u578b\u9002\u7528\u4e8e\u8fdc\u7a0b\u6216\u5206\u652f\u673a\u6784\u7684\u90e8\u7f72\uff0c\u901a\u5e38\u7ed3\u5408\u4f7f\u7528\u96c6\u4e2d\u5f0f\u548c\u4e91\u6a21\u578b\u6765\u5b9e\u73b0\u5206\u652f\u673a\u6784\u7684\u65e0\u7ebf\u7f51\u7edc\u7ba1\u7406\u548c\u63a7\u5236\u3002<\/li>\n<\/ul>\n<h2>Location services in a WLAN design<\/h2>\n<p>\u4f4d\u7f6e\u670d\u52a1\u5229\u7528\u65e0\u7ebf\u5c40\u57df\u7f51\uff08WLAN\uff09\u6765\u786e\u5b9a\u8bbe\u5907\u7684\u7269\u7406\u4f4d\u7f6e\uff0c\u8fd9\u5728\u8bb8\u591a\u5e94\u7528\u4e2d\u90fd\u975e\u5e38\u91cd\u8981\uff0c\u5982\u8d44\u4ea7\u8ddf\u8e2a\u3001\u5ba4\u5185\u5bfc\u822a\u548c\u4e0a\u4e0b\u6587\u611f\u77e5\u670d\u52a1\u3002\u5728\u8bbe\u8ba1\u5e26\u6709\u4f4d\u7f6e\u670d\u52a1\u7684WLAN\u65f6\uff0c\u4f60\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>AP\u7684\u5e03\u5c40<\/strong>: \u8981\u7cbe\u786e\u5730\u5b9a\u4f4d\u8bbe\u5907\uff0cAP\u5e94\u5747\u5300\u5206\u5e03\uff0c\u8986\u76d6\u6240\u6709\u533a\u57df\u540c\u65f6\u4e92\u76f8\u8986\u76d6\u8303\u56f4\u5177\u6709\u5197\u4f59\u3002<\/li>\n<li><strong>\u4fe1\u53f7\u5f3a\u5ea6\u548c\u8d28\u91cf<\/strong>: \u4f4d\u7f6e\u7cbe\u5ea6\u4f9d\u8d56\u4e8e\u4fe1\u53f7\u7684\u5f3a\u5ea6\u548c\u8d28\u91cf\u3002\u8bbe\u8ba1\u65f6\u9700\u8981\u8003\u8651\u7269\u7406\u969c\u788d\u7269\u548c\u73af\u5883\u5e72\u6270\u3002<\/li>\n<li><strong>\u8f6f\u4ef6\u548c\u786c\u4ef6\u652f\u6301<\/strong>: \u4f7f\u7528\u4e13\u95e8\u7684\u5b9a\u4f4d\u5f15\u64ce\u548c\u652f\u6301\u5b9a\u4f4d\u529f\u80fd\u7684\u786c\u4ef6\u53ef\u4ee5\u63d0\u9ad8\u7cbe\u5ea6\u3002<\/li>\n<\/ul>\n<h2>Client density<\/h2>\n<p>\u5ba2\u6237\u7aef\u5bc6\u5ea6\u6307\u7684\u662f\u5728\u7279\u5b9a\u533a\u57df\u5185\u540c\u65f6\u8fde\u63a5\u5230\u7f51\u7edc\u7684\u8bbe\u5907\u6570\u91cf\u3002\u9ad8\u5ba2\u6237\u7aef\u5bc6\u5ea6\u53ef\u4ee5\u5bf9\u7f51\u7edc\u6027\u80fd\u4ea7\u751f\u91cd\u5927\u5f71\u54cd\uff0c\u9700\u8981\u8003\u8651\u7279\u522b\u8bbe\u8ba1\u4ee5\u5e94\u5bf9\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u5bc6\u5ea6AP\u90e8\u7f72<\/strong>: \u5728\u4eba\u6d41\u5bc6\u96c6\u7684\u533a\u57df\u589e\u52a0AP\u6570\u91cf\uff0c\u4ee5\u51cf\u8f7b\u6bcf\u4e2aAP\u7684\u8d1f\u8f7d\u3002<\/li>\n<li><strong>\u5b9a\u5411\u5929\u7ebf\u4f7f\u7528<\/strong>: \u5b9a\u5411\u5929\u7ebf\u53ef\u4ee5\u5e2e\u52a9AP\u5c06\u4fe1\u53f7\u5b9a\u5411\u5230\u7279\u5b9a\u533a\u57df\uff0c\u4ece\u800c\u51cf\u5c11\u4fe1\u53f7\u5e72\u6270\u548c\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li><strong>MIMO\uff08\u591a\u8f93\u5165\u591a\u8f93\u51fa\uff09<\/strong>: MIMO\u6280\u672f\u53ef\u4ee5\u589e\u52a0\u6bcf\u4e2aAP\u7684\u4f20\u8f93\u5bb9\u91cf\uff0c\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\u3002<\/li>\n<li><strong>\u9891\u6bb5\u7ba1\u7406<\/strong>: \u4f7f\u7528\u53cc\u9891\u6bb5\u6216\u4e09\u9891\u6bb5AP\uff08\u652f\u63012.4GHz\u548c5GHz\uff09\u6765\u4f18\u5316\u9891\u8c31\u4f7f\u7528\u3002<\/li>\n<li><strong>\u670d\u52a1\u8d28\u91cf\uff08QoS\uff09\u7b56\u7565<\/strong>: \u5b9e\u65bdQoS\u7b56\u7565\u6765\u786e\u4fdd\u5173\u952e\u5e94\u7528\u7684\u6027\u80fd\u4e0d\u53d7\u9ad8\u6d41\u91cf\u7684\u5f71\u54cd\u3002<\/li>\n<\/ul>\n<h1>Explain the working principles of the Cisco SD-WAN solution<\/h1>\n<h2>SD-WAN control and data planes elements<\/h2>\n<ul>\n<li><strong>\u63a7\u5236\u5e73\u9762(Control Plane)<\/strong>: \u63a7\u5236\u5e73\u9762\u8d1f\u8d23\u6784\u5efa\u548c\u7ef4\u62a4\u7f51\u7edc\u62d3\u6251\uff0c\u5e76\u51b3\u5b9a\u6d41\u91cf\u7684\u8d70\u5411\u3002\u5728Cisco SD-WAN\u4e2d\uff0cvSmart\u63a7\u5236\u5668\u662f\u63a7\u5236\u5e73\u9762\u7684\u6838\u5fc3\u7ec4\u4ef6\uff0c\u5b83\u8d1f\u8d23\u4f20\u9012\u8def\u7531\u4fe1\u606f\u3001\u7b56\u7565\u548c\u914d\u7f6e\uff0c\u4ece\u800c\u6307\u5bfc\u6570\u636e\u5305\u5728\u7f51\u7edc\u4e2d\u7684\u4f20\u8f93\u8def\u5f84\uff0c\u5e2e\u52a9\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u7075\u6d3b\u6027\u548c\u54cd\u5e94\u901f\u5ea6\uff0c\u53ef\u4ee5\u8fc5\u901f\u9002\u5e94\u7f51\u7edc\u72b6\u6001\u7684\u53d8\u5316\u3002<\/li>\n<li><strong>\u6570\u636e\u5e73\u9762<\/strong>: \u6570\u636e\u5e73\u9762\u8d1f\u8d23\u6839\u636e\u63a7\u5236\u5e73\u9762\u7684\u51b3\u7b56\u8f6c\u53d1\u6570\u636e\u5305\u3002\u5728Cisco SD-WAN\u4e2d\uff0c\u7531vEdge\u8bbe\u5907\u6839\u636e\u63a7\u5236\u5e73\u9762\u63d0\u4f9b\u7684\u7b56\u7565\u5904\u7406\u6570\u636e\u5305\u7684\u8f6c\u53d1\uff0c\u5305\u62ec\u52a0\u5bc6\u548c\u89e3\u5bc6\u6570\u636e\u5305\uff0c\u786e\u4fdd\u6570\u636e\u5b89\u5168\u4f20\u8f93\u3002<br \/>\n<a href=\"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/M1.1.png\" data-rel=\"lightbox-image-3\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img decoding=\"async\" src=\"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/M1.1.png\" alt=\"\" \/><\/a><\/li>\n<li><strong>\u7ba1\u7406\u5e73\u9762<\/strong>: \u8d1f\u8d23\u4e2d\u5fc3\u914d\u7f6e\u548c\u76d1\u63a7\u3002\u5728Cisco SD-WAN\u4e2d\uff0c\u901a\u8fc7vManage\u8fd9\u4e2a\u4e2d\u5fc3\u5316\u7ba1\u7406\u7ec4\u4ef6\uff0c\u8ba9\u7f51\u7edc\u7ba1\u7406\u5458\u914d\u7f6e\u7b56\u7565\u3001\u76d1\u63a7\u7f51\u7edc\u72b6\u6001\u3001\u8fdb\u884c\u6545\u969c\u6392\u9664\u7b49\u7ba1\u7406\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u7f16\u6392\u5e73\u9762<\/strong>: \u534f\u52a9\u81ea\u52a8\u5c06SD-WAN\u8def\u7531\u5668\u63a5\u5165SD-WAN\u7f51\u7edc\u3002\u5728Cisco SD-WAN\u4e2d\uff0c\u8fd9\u901a\u5e38\u662f\u901a\u8fc7vBond\u7f16\u6392\u5668\u6765\u5b9e\u73b0\u7684\uff0c\u5b83\u8d1f\u8d23\u4e0a\u7ebf\u8bbe\u5907\u9a8c\u8bc1\u3001\u8bbe\u5907\u95f4\u7684\u8fde\u63a5\u4ee5\u53ca\u52a0\u5bc6\u901a\u9053\u7684\u5efa\u7acb\u3002<\/li>\n<\/ul>\n<h2>Benefits and limitations of SD-WAN solutions<\/h2>\n<p><strong>\u4f18\u70b9<\/strong><\/p>\n<ul>\n<li><strong>\u589e\u5f3a\u7684\u7f51\u7edc\u654f\u6377\u6027<\/strong>: Cisco SD-WAN\u63d0\u4f9b\u52a8\u6001\u8def\u5f84\u9009\u62e9\u529f\u80fd\uff0c\u6839\u636e\u5b9e\u65f6\u7f51\u7edc\u6761\u4ef6\u81ea\u52a8\u9009\u62e9\u6700\u4f18\u8def\u5f84\uff0c\u4ee5\u63d0\u9ad8\u5e94\u7528\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<li><strong>\u96c6\u4e2d\u5316\u7ba1\u7406<\/strong>: \u901a\u8fc7\u96c6\u4e2d\u5f0f\u7ba1\u7406\u5e73\u53f0\uff0c\u53ef\u4ee5\u8fdc\u7a0b\u914d\u7f6e\u548c\u76d1\u63a7\u6240\u6709\u7f51\u7edc\u8bbe\u5907\uff0c\u5927\u5e45\u7b80\u5316\u7f51\u7edc\u64cd\u4f5c\u548c\u7ef4\u62a4\u3002<\/li>\n<li><strong>\u4f18\u79c0\u7684\u6269\u5c55\u6027<\/strong>: \u63a7\u5236\u5e73\u9762\u548c\u6570\u636e\u5e73\u9762\u5206\u79bb\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u6269\u5c55\u548c\u90e8\u7f72\uff0c\u4efb\u4e00\u5c42\u9762\u7684\u6269\u5c55\u6216\u5347\u7ea7\u90fd\u4e0d\u5f71\u54cd\u5f53\u524d\u7f51\u7edc\u7684\u8fd0\u884c\u3002<\/li>\n<li><strong>\u6210\u672c\u6548\u76ca<\/strong>: SD-WAN\u53ef\u4ee5\u4f7f\u7528\u4e92\u8054\u7f51\u94fe\u63a5\uff0c\u51cf\u5c11\u5bf9\u6602\u8d35\u7684\u4e13\u7528\u7ebf\u8def\uff08\u5982MPLS\uff09\u7684\u4f9d\u8d56\uff0c\u4ece\u800c\u964d\u4f4e\u7f51\u7edc\u6210\u672c\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u7684\u5b89\u5168\u6027<\/strong>: \u96c6\u6210\u7684\u5b89\u5168\u529f\u80fd\uff0c\u5982\u52a0\u5bc6\u548c\u7ec6\u7c92\u5ea6\u7684\u8bbf\u95ee\u63a7\u5236\u7b56\u7565\uff0c\u589e\u5f3a\u4e86\u7f51\u7edc\u7684\u5b89\u5168\u6027\u3002<\/li>\n<\/ul>\n<p><strong>\u5c40\u9650\u6027<\/strong><\/p>\n<ul>\n<li><strong>\u521d\u59cb\u90e8\u7f72\u6210\u672c<\/strong>: \u5c3d\u7ba1\u957f\u671f\u53ef\u4ee5\u8282\u7ea6\u6210\u672c\uff0c\u4f46\u521d\u59cb\u8bbe\u5907\u548c\u90e8\u7f72\u7684\u6210\u672c\u53ef\u80fd\u76f8\u5bf9\u8f83\u9ad8\u3002<\/li>\n<li><strong>\u590d\u6742\u6027<\/strong>: \u5bf9\u4e8e\u4f20\u7edf\u7f51\u7edc\u64cd\u4f5c\u4eba\u5458\u6765\u8bf4\uff0cSD-WAN\u7684\u90e8\u7f72\u548c\u7ba1\u7406\u53ef\u80fd\u9700\u8981\u65b0\u7684\u6280\u80fd\u548c\u57f9\u8bad\u3002<\/li>\n<li><strong>\u4f9d\u8d56\u6027<\/strong>: \u901a\u5e38\u662f\u4f9b\u5e94\u5546\u96c6\u6210SD-WAN\u89e3\u51b3\u65b9\u6848\uff0c\u65e0\u6cd5\u4e0e\u5176\u4ed6\u4f9b\u5e94\u5546\u8fdb\u884c\u8fc1\u79fb\u3002<\/li>\n<\/ul>\n<h1>Explain the working principles of the Cisco SD-Access solution<\/h1>\n<p>Cisco SD-Access\uff08\u8f6f\u4ef6\u5b9a\u4e49\u63a5\u5165\uff09\u662f\u4e00\u79cd\u610f\u5728\u7b80\u5316\u4f01\u4e1a\u7f51\u7edc\u64cd\u4f5c\u3001\u589e\u5f3a\u5b89\u5168\u6027\u548c\u63d0\u5347\u7f51\u7edc\u7075\u6d3b\u6027\u7684\u89e3\u51b3\u65b9\u6848\u3002\u5b83\u662fCisco\u6570\u5b57\u7f51\u7edc\u67b6\u6784\uff08DNA\uff09\u7684\u4e00\u90e8\u5206\uff0c\u4e3b\u8981\u7528\u4e8e\u56ed\u533a\u7f51\u7edc\u3002<\/p>\n<h2>SD-Access control and data planes elements<\/h2>\n<ul>\n<li><strong>\u63a7\u5236\u5e73\u9762(Control Plane)<\/strong>: \u8d1f\u8d23Fabric\u4e2d\u57fa\u7840\u8bbe\u65bd\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u548c\u6d88\u606f\u4f20\u8f93\uff0c\u4e3b\u8981\u57fa\u4e8e<strong>LISP\uff08Locator\/ID Separation Protocol\uff09<\/strong>\u3002<\/li>\n<li><strong>\u6570\u636e\u5e73\u9762(Data Plane)<\/strong>: \u8d1f\u8d23\u6267\u884c\u63a7\u5236\u5e73\u9762\u5b9a\u4e49\u7684\u7b56\u7565\uff0c\u5e76\u5904\u7406\u6570\u636e\u7684\u5c01\u88c5\u548c\u8f6c\u53d1\u3002\u4e3b\u8981\u4f7f\u7528<strong>VXLAN<\/strong>\u6280\u672f\u5c01\u88c5\u6d41\u91cf\uff0c\u652f\u6301\u8de8\u591a\u4e2a\u7269\u7406\u4f4d\u7f6e\u7684\u7075\u6d3b\u7f51\u7edc\u5206\u6bb5\u548c\u4f18\u5316\u8def\u5f84\u9009\u62e9\u3002<\/li>\n<li><strong>\u7b56\u7565\u5e73\u9762(Policy Plane)<\/strong>: \u8d1f\u8d23\u5b89\u5168\u7b56\u7565\u548c\u5206\u6bb5\uff0c\u4e3b\u8981\u57fa\u4e8e<strong>Cisco TrustSec<\/strong>\uff0c\u5305\u62ec<strong>ISE\uff08Identity Services Engine\uff09<\/strong>\u7b49\u7b49\u3002<\/li>\n<li><strong>\u7ba1\u7406\u5e73\u9762(Management Plane)<\/strong>: \u8d1f\u8d23\u7f16\u6392\u548c\u7ba1\u7406\uff0c\u4e3b\u8981\u57fa\u4e8e<strong>Cisco DNA Center<\/strong>\u3002<\/li>\n<\/ul>\n<h2>Traditional campus interoperating with SD-Access<\/h2>\n<ul>\n<li><strong>\u7f51\u5173\u4e92\u64cd\u4f5c<\/strong>: \u5728SD-Access\u548c\u4f20\u7edf\u7f51\u7edc\u4e4b\u95f4\u5efa\u7acb\u4e92\u64cd\u4f5c\u7f51\u5173\uff0c\u53ef\u4ee5\u5141\u8bb8\u4e24\u4e2a\u4e0d\u540c\u67b6\u6784\u7684\u7f51\u7edc\u6bb5\u5e73\u6ed1\u4ea4\u6d41\u6570\u636e\u3002\u8fd9\u901a\u5e38\u901a\u8fc7\u914d\u7f6e\u7279\u5b9a\u7684\u8def\u7531\u548c\u5b89\u5168\u7b56\u7565\u6765\u5b9e\u73b0\u3002<\/li>\n<li><strong>\u7b56\u7565\u4e00\u81f4\u6027<\/strong>: \u786e\u4fdd\u4ece\u4f20\u7edf\u7f51\u7edc\u5230SD-Access\u8fc1\u79fb\u6216\u6269\u5c55\u65f6\uff0c\u5b89\u5168\u548c\u63a5\u5165\u7b56\u7565\u7684\u4e00\u81f4\u6027\u3002\u8fd9\u6d89\u53ca\u5230\u590d\u6742\u7684\u7b56\u7565\u7ba1\u7406\u548c\u5728DNA Center\u4e2d\u8fdb\u884c\u7ec6\u81f4\u7684\u914d\u7f6e\u3002<\/li>\n<li><strong>\u6e10\u8fdb\u5f0f\u90e8\u7f72<\/strong>: \u4f01\u4e1a\u53ef\u4ee5\u9009\u62e9\u6e10\u8fdb\u5f0f\u90e8\u7f72\u7b56\u7565\uff0c\u5373\u90e8\u5206\u7f51\u7edc\u4f7f\u7528SD-Access\uff0c\u90e8\u5206\u7f51\u7edc\u4fdd\u6301\u4f20\u7edf\u67b6\u6784\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u51cf\u8f7b\u8fc1\u79fb\u98ce\u9669\uff0c\u540c\u65f6\u9a8c\u8bc1\u65b0\u89e3\u51b3\u65b9\u6848\u7684\u6709\u6548\u6027\u3002<\/li>\n<\/ul>\n<p>SD-Access\u7684\u4e3b\u8981\u76ee\u7684\u662f\u63d0\u4f9b\u4e00\u79cd\u66f4\u5b89\u5168\u3001\u66f4\u7075\u6d3b\u4e14\u6613\u4e8e\u7ba1\u7406\u7684\u7f51\u7edc\u63a5\u5165\u65b9\u5f0f\u3002\u901a\u8fc7\u4f7f\u7528\u7b56\u7565\u9a71\u52a8\u7684\u63a5\u5165\u63a7\u5236\u548c\u81ea\u52a8\u5316\u7684\u7f51\u7edc\u7ba1\u7406\uff0cSD-Access\u5e2e\u52a9\u4f01\u4e1a\u5b9e\u73b0\u4e86\u4ee5\u4e0b\u76ee\u6807\uff1a<\/p>\n<ul>\n<li><strong>\u589e\u5f3a\u7684\u5b89\u5168\u6027<\/strong>: \u901a\u8fc7\u7ec6\u7c92\u5ea6\u7684\u7528\u6237\u548c\u8bbe\u5907\u7ea7\u7b56\u7565\uff0c\u589e\u5f3a\u7f51\u7edc\u5b89\u5168\u3002<\/li>\n<li><strong>\u7b80\u5316\u7684\u64cd\u4f5c<\/strong>: \u81ea\u52a8\u5316\u7684\u914d\u7f6e\u548c\u7ba1\u7406\u51cf\u5c11\u4e86\u7f51\u7edc\u8fd0\u7ef4\u7684\u590d\u6742\u6027\u3002<\/li>\n<li><strong>\u66f4\u597d\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027<\/strong>: \u4f18\u5316\u7684\u8def\u5f84\u9009\u62e9\u548c\u7f51\u7edc\u8d44\u6e90\u7ba1\u7406\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u6574\u4f53\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n<h1>Interpret wired and wireless QoS configurations<\/h1>\n<h2>QoS components<\/h2>\n<p>\u5728\u6709\u7ebf\u548c\u65e0\u7ebf\u7f51\u7edc\u4e2d\uff0cQoS\u7ec4\u4ef6\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u5206\u7c7b\u548c\u6807\u8bb0\uff08Classification and Marking\uff09<\/strong>: \u6570\u636e\u6d41\u91cf\u6839\u636e\u5176\u7c7b\u578b\uff08\u5982\u8bed\u97f3\u3001\u89c6\u9891\u6216\u6570\u636e\uff09\u88ab\u8bc6\u522b\u5e76\u5206\u7c7b\u3002\u7136\u540e\uff0c\u6839\u636e\u5176\u91cd\u8981\u6027\u548c\u670d\u52a1\u9700\u6c42\uff0c\u6d41\u91cf\u88ab\u6807\u8bb0\u4ee5\u4f9b\u7f51\u7edc\u8bbe\u5907\u8bc6\u522b\u3002\u5e38\u7528\u7684\u6807\u8bb0\u6280\u672f\u5305\u62ecIP Precedence\u548cDSCP\uff08Differentiated Services Code Point\uff09\u3002<\/li>\n<li><strong>\u961f\u5217\uff08Queuing\uff09<\/strong>: \u6d41\u91cf\u88ab\u5206\u5165\u4e0d\u540c\u7684\u961f\u5217\uff0c\u6bcf\u4e2a\u961f\u5217\u6839\u636e\u5176QoS\u8981\u6c42\u88ab\u8d4b\u4e88\u4e0d\u540c\u7684\u5904\u7406\u4f18\u5148\u7ea7\u3002\u4f8b\u5982\uff0c\u8bed\u97f3\u901a\u4fe1\u56e0\u5176\u5bf9\u5ef6\u8fdf\u654f\u611f\uff0c\u901a\u5e38\u88ab\u653e\u5728\u4f18\u5148\u7ea7\u6700\u9ad8\u7684\u961f\u5217\u4e2d\u3002<\/li>\n<li><strong>\u62e5\u585e\u7ba1\u7406\uff08Congestion Management\uff09<\/strong>: \u5f53\u7f51\u7edc\u8d44\u6e90\u4e0d\u8db3\u4ee5\u5904\u7406\u6240\u6709\u6d41\u91cf\u65f6\uff0c\u62e5\u585e\u7ba1\u7406\u7b56\u7565\u51b3\u5b9a\u54ea\u4e9b\u6570\u636e\u5305\u5148\u53d1\u9001\uff0c\u54ea\u4e9b\u540e\u53d1\u9001\u3002\u5e38\u89c1\u7684\u62e5\u585e\u7ba1\u7406\u7b97\u6cd5\u5305\u62ec\u5c3e\u90e8\u4e22\u5f03\uff08Tail Drop\uff09\u3001\u968f\u673a\u65e9\u671f\u68c0\u6d4b\uff08RED\uff09\u548c\u52a0\u6743\u968f\u673a\u65e9\u671f\u68c0\u6d4b\uff08WRED\uff09\u3002<\/li>\n<li><strong>\u6d41\u91cf\u6574\u5f62\u548c\u901f\u7387\u9650\u5236\uff08Traffic Shaping and Policing\uff09<\/strong>: \u6d41\u91cf\u6574\u5f62\u5e73\u6ed1\u4e86\u6570\u636e\u6d41\uff0c\u907f\u514d\u7a81\u53d1\uff0c\u800c\u901f\u7387\u9650\u5236\u5219\u5f3a\u5236\u6570\u636e\u6d41\u4fdd\u6301\u5728\u8bbe\u5b9a\u7684\u901f\u7387\u4e0b\u3002\u8fd9\u4e9b\u63a7\u5236\u5e2e\u52a9\u7f51\u7edc\u907f\u514d\u8fc7\u8f7d\uff0c\u5e76\u786e\u4fdd\u5404\u79cd\u6d41\u91cf\u5f97\u5230\u5408\u9002\u7684\u5e26\u5bbd\u3002<\/li>\n<\/ul>\n<h2>QoS policy<\/h2>\n<p>\u8bbe\u8ba1\u548c\u5b9e\u65bdQoS\u7b56\u7565\u6d89\u53ca\u5230\u4ee5\u4e0b\u5173\u952e\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u7b56\u7565\u5b9a\u4e49<\/strong>: \u660e\u786e\u54ea\u4e9b\u4e1a\u52a1\u548c\u5e94\u7528\u9700\u8981\u7279\u6b8a\u7684QoS\u5904\u7406\uff0c\u4f8b\u5982\u5b9e\u65f6\u8bed\u97f3\u548c\u89c6\u9891\u901a\u4fe1\u9700\u6c42\u4f18\u5148\u7ea7\u5904\u7406\uff0c\u4ee5\u4fdd\u8bc1\u901a\u4fe1\u8d28\u91cf\u3002<\/li>\n<li><strong>\u8bbe\u5907\u914d\u7f6e<\/strong>: \u5728\u8def\u7531\u5668\u3001\u4ea4\u6362\u673a\u548c\u5176\u4ed6\u7f51\u7edc\u8bbe\u5907\u4e0a\u5b9e\u65bdQoS\u914d\u7f6e\u3002\u8fd9\u5305\u62ec\u8bbe\u5b9a\u5206\u7c7b\u3001\u6807\u8bb0\u3001\u6392\u961f\u7b56\u7565\u3001\u62e5\u585e\u7ba1\u7406\u548c\u6d41\u91cf\u6574\u5f62\u7b49\u3002<\/li>\n<li><strong>\u76d1\u63a7\u548c\u8c03\u6574<\/strong>: QoS\u7b56\u7565\u7684\u5b9e\u65bd\u5e76\u4e0d\u662f\u4e00\u6b21\u6027\u7684\u4efb\u52a1\u3002\u7f51\u7edc\u6761\u4ef6\u7684\u53d8\u5316\u548c\u4e1a\u52a1\u9700\u6c42\u7684\u6f14\u8fdb\u8981\u6c42\u6301\u7eed\u76d1\u63a7QoS\u8868\u73b0\uff0c\u5e76\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u7b56\u7565\u3002<\/li>\n<li><strong>\u8de8\u5e73\u53f0\u4e00\u81f4\u6027<\/strong>: \u5728\u6df7\u5408\u73af\u5883\u4e2d\uff08\u4f8b\u5982\u540c\u65f6\u6709\u6709\u7ebf\u548c\u65e0\u7ebf\u8bbe\u5907\u7684\u7f51\u7edc\uff09\uff0c\u786e\u4fddQoS\u7b56\u7565\u5728\u4e0d\u540c\u5e73\u53f0\u548c\u8bbe\u5907\u95f4\u4fdd\u6301\u4e00\u81f4\u6027\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/li>\n<\/ul>\n<h1>Describe hardware and software switching mechanisms such as CEF, CAM, TCAM, FIB, RIB, and adjacency tables<\/h1>\n<h2>CEF (Cisco Express Forwarding)<\/h2>\n<p>CEF\u662fCisco\u8def\u7531\u5668\u4e2d\u7528\u4e8e\u63d0\u9ad8\u7f51\u7edc\u6548\u7387\u7684\u5feb\u901f\u8f6c\u53d1\u673a\u5236\u3002\u5b83\u4f7f\u7528\u4e24\u4e2a\u4e3b\u8981\u6570\u636e\u7ed3\u6784\uff1a\u8f6c\u53d1\u4fe1\u606f\u5e93\uff08FIB\uff09\u548c\u90bb\u63a5\u8868\uff08adjacency tables\uff09\u3002<\/p>\n<ul>\n<li><strong>FIB (Forwarding Information Base)<\/strong>: FIB\u5305\u542bIP\u8def\u7531\u67e5\u627e\u8868\u7684\u526f\u672c\uff0c\u7528\u4e8e\u51b3\u5b9a\u6570\u636e\u5305\u7684\u8f6c\u53d1\u3002\u5b83\u57fa\u4e8e\u8def\u7531\u4fe1\u606f\u5e93\uff08RIB\uff09\u751f\u6210\uff0c\u4f46\u4ec5\u5305\u542b\u6700\u4f73\u8def\u5f84\u548c\u5fc5\u8981\u4fe1\u606f\uff0c\u4ee5\u4f18\u5316\u8f6c\u53d1\u6027\u80fd\u3002<\/li>\n<li><strong>\u90bb\u63a5\u8868<\/strong>: \u90bb\u63a5\u8868\u5b58\u50a8\u4e0b\u4e00\u8df3\u8def\u7531\u5668\u7684\u94fe\u8def\u5c42\u5730\u5740\u4fe1\u606f\uff0c\u8fd9\u4e9b\u4fe1\u606f\u662f\u5fc5\u9700\u7684\uff0c\u4ee5\u4fbf\u76f4\u63a5\u5c06\u6570\u636e\u5305\u8f6c\u53d1\u5230\u4e0b\u4e00\u4e2a\u8bbe\u5907\u3002<\/li>\n<\/ul>\n<h2>RIB (Routing Information Base)<\/h2>\n<p>RIB\u662f\u8def\u7531\u5668\u4e2d\u7684\u4e00\u4e2a\u8868\uff0c\u5305\u542b\u4e86\u4ece\u4e0d\u540c\u8def\u7531\u534f\u8bae\uff08\u5982BGP\u3001OSPF\u7b49\uff09\u5b66\u4e60\u5230\u7684\u6240\u6709\u8def\u7531\u3002RIB\u5305\u542b\u4e86\u7f51\u7edc\u4e2d\u6240\u6709\u5df2\u77e5\u8def\u5f84\u53ca\u5176\u5c5e\u6027\uff0c\u8def\u7531\u7b97\u6cd5\u4f1a\u5728\u8fd9\u4e9b\u8def\u5f84\u4e2d\u9009\u62e9\u6700\u4f73\u8def\u5f84\uff0c\u5e76\u5c06\u5176\u63a8\u9001\u5230FIB\uff0c\u4f9b\u6570\u636e\u8f6c\u53d1\u4f7f\u7528\u3002<\/p>\n<h2>FIB (Forwarding Information Base)<\/h2>\n<p>FIB\u662f\u4eceRIB\u4e2d\u9009\u51fa\u7684\u6700\u4f73\u8def\u7531\u7684\u7b80\u5316\u8868\uff0c\u4e13\u95e8\u7528\u4e8e\u6570\u636e\u5305\u7684\u5feb\u901f\u8f6c\u53d1\u3002FIB\u76f4\u63a5\u5173\u8054\u5230\u6570\u636e\u5305\u7684\u5904\u7406\u548c\u8f6c\u53d1\uff0c\u542b\u6709\u4e0b\u4e00\u8df3\u7684\u5730\u5740\u4fe1\u606f\u3002<\/p>\n<h2>\u90bb\u63a5\u8868(Adjacency Tables)<\/h2>\n<p>\u90bb\u63a5\u8868\u662fCEF\u4f7f\u7528\u7684\u4e00\u4e2a\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5b83\u8bb0\u5f55\u4e86\u76f4\u63a5\u8fde\u63a5\u7684\u8bbe\u5907\u7684\u63a5\u53e3\u4fe1\u606f\u3002\u8fd9\u4e2a\u8868\u786e\u4fdd\u4e86\u6570\u636e\u5305\u53ef\u4ee5\u88ab\u6b63\u786e\u5c01\u88c5\u5e76\u9001\u5f80\u4e0b\u4e00\u4e2a\u8df3\u7684\u8bbe\u5907\u3002<\/p>\n<h2>CAM (Content Addressable Memory) \u548c TCAM (Ternary Content Addressable Memory)<\/h2>\n<ul>\n<li><strong>CAM<\/strong>: \u7528\u4e8e\u7f51\u7edc\u8bbe\u5907\u4e2d\u5b58\u50a8\u4fe1\u606f\uff0c\u5982\u4ee5\u592a\u7f51MAC\u5730\u5740\u3002CAM\u5141\u8bb8\u57fa\u4e8e\u5185\u5bb9\u7684\u5feb\u901f\u641c\u7d22\uff0c\u4f7f\u5f97\u4ea4\u6362\u673a\u80fd\u591f\u8fc5\u901f\u5339\u914d\u5230\u7279\u5b9a\u7684MAC\u5730\u5740\uff0c\u5e76\u51b3\u5b9a\u5982\u4f55\u8f6c\u53d1\u5e27\u3002<\/li>\n<li><strong>TCAM<\/strong>: \u76f8\u6bd4CAM\uff0cTCAM\u63d0\u4f9b\u66f4\u9ad8\u7ea7\u7684\u67e5\u627e\u529f\u80fd\uff0c\u53ef\u4ee5\u5b58\u50a8\u4e09\u79cd\u72b6\u6001\u7684\u6570\u636e\uff1a0\u30011\u548c\u201c\u4e0d\u5173\u5fc3\u201d\uff08X\uff09\u3002\u8fd9\u4f7fTCAM\u975e\u5e38\u9002\u5408\u5b58\u50a8\u590d\u6742\u7684\u7f51\u7edc\u7b56\u7565\u548c\u9ad8\u7ea7\u8def\u7531\u67e5\u627e\uff0c\u5982\u8bbf\u95ee\u63a7\u5236\u5217\u8868\uff08ACLs\uff09\u548cQoS\u7b56\u7565\u3002<\/li>\n<\/ul>\n<p>\u5728\u6574\u4e2a\u6570\u636e\u5305\u8f6c\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u4ed6\u4eec\u534f\u540c\u5de5\u4f5c\uff0c\u4ee5\u5b9e\u73b0\u9ad8\u6548\u548c\u51c6\u786e\u7684\u7f51\u7edc\u64cd\u4f5c\u3002\u6570\u636e\u5305\u5230\u8fbe\u8bbe\u5907\u65f6\uff0c\u9996\u5148\u4f7f\u7528FIB\uff08\u7531CEF\u5feb\u901f\u5904\u7406\uff09\u786e\u5b9a\u8f6c\u53d1\u51b3\u7b56\uff0c\u968f\u540e\u901a\u8fc7\u90bb\u63a5\u8868\u67e5\u627e\u6570\u636e\u94fe\u8def\u5c42\u5730\u5740\uff0c\u6700\u7ec8\u901a\u8fc7CAM\u6216TCAM\u5b9e\u73b0\u786c\u4ef6\u7ea7\u7684\u5feb\u901f\u8f6c\u53d1\u3002\u8fd9\u79cd\u673a\u5236\u663e\u8457\u63d0\u9ad8\u4e86\u5927\u578b\u7f51\u7edc\u73af\u5883\u4e2d\u7684\u6570\u636e\u8f6c\u53d1\u6548\u7387\u548c\u6027\u80fd\u3002<\/p>\n<blockquote>\n<p>\u53c2\u8003\u8d44\u6599:<br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/solutions\/Enterprise\/Campus\/campover.html\">https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/solutions\/Enterprise\/Campus\/campover.html<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/dam\/global\/shared\/assets\/pdf\/cisco_enterprise_campus_infrastructure_design_guide.pdf\">https:\/\/www.cisco.com\/c\/dam\/global\/shared\/assets\/pdf\/cisco_enterprise_campus_infrastructure_design_guide.pdf<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/dam\/en_us\/solutions\/industries\/docs\/education\/cisco_wlan_design_guide.pdf\">https:\/\/www.cisco.com\/c\/dam\/en_us\/solutions\/industries\/docs\/education\/cisco_wlan_design_guide.pdf<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/solutions\/design-zone.html#~guides-by-technology\">https:\/\/www.cisco.com\/c\/en\/us\/solutions\/design-zone.html#~guides-by-technology<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/solutions\/CVD\/SDWAN\/cisco-sdwan-design-guide.html#Introduction\">https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/solutions\/CVD\/SDWAN\/cisco-sdwan-design-guide.html#Introduction<\/a><br \/>\n<a href=\"https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/solutions\/CVD\/Campus\/cisco-sda-design-guide.html\">https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/solutions\/CVD\/Campus\/cisco-sda-design-guide.html<\/a><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u4e86CCNP ENCOR 350-401\u4e2d\u67b6\u6784\u90e8\u5206\u9700\u8981\u638c\u63e1\u7684\u77e5\u8bc6\u70b9\uff0c\u5305\u62ec\u4f01\u4e1a\u7f51\u67b6\u6784\u8bbe\u8ba1\uff0c\u9ad8\u53ef\u7528\u6280\u672f\uff0c\u65e0\u7ebf\u7f51\u7edc\u8bbe\u8ba1\uff0c\u601d\u79d1SD-WAN\u89e3\u51b3\u65b9\u6848\uff0c\u601d\u79d1SD-A\u89e3\u51b3\u65b9\u6848\uff0cQoS\uff0c\u4ee5\u53ca\u8def\u7531\u8f6c\u53d1\u7b49\uff0c\u7b80\u5355\u63d0\u53ca\u4e86\u5404\u90e8\u5206\u6d89\u53ca\u5230\u7684\u5185\u5bb9\u3002<\/p>\n","protected":false},"author":3,"featured_media":447,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_jetpack_memberships_contains_paid_content":false},"categories":[29],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/blog.devops955.com\/swain\/wp-content\/uploads\/sites\/2\/2024\/04\/cisco-1.png","_links":{"self":[{"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/posts\/439"}],"collection":[{"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/comments?post=439"}],"version-history":[{"count":4,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/posts\/439\/revisions"}],"predecessor-version":[{"id":448,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/posts\/439\/revisions\/448"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/media\/447"}],"wp:attachment":[{"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/media?parent=439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/categories?post=439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.devops955.com\/swain\/wp-json\/wp\/v2\/tags?post=439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}