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data-original=\"https:\/\/blog.90.vc\/usr\/uploads\/2021\/09\/3131890285.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u6280\u672f\u53d1\u70e7\u53cb\uff1a\u95f2\u8bdd\u5927\u4e8c\u5c42\u7f51\u7edc-1740593-6\" \/><\/div><\/a><\/p>\n<div data-unique=\"2.2.2SPB\"><\/div>\n<h4 id=\"2-2-2--------SPB\">2.2.2 SPB<\/h4>\n<p>\u800cSPB\u662fIEEE\u63a8\u51fa\u7684\u5f85\u5b9a\u6807\u51c6\uff0c\u7b97\u662fTRILL\u7684\u5f3a\u6709\u529b\u7ade\u4e89\u8005\u3002<\/p>\n<p>\u8981\u8bf4SPB\uff0c\u9700\u8981\u5148\u4ecePBB\uff08Provider Backbone Bridging\uff09\u8bf4\u8d77\uff0cPBB\u662fIEEE\u4e8e2008\u5e74\u5b8c\u6210\u7684802.1ah\u6807\u51c6\uff0c\u4e3a\u8fd0\u8425\u5546\u57ce\u57df\u4ee5\u592a\u7f51\u5b9a\u4e49\u4e86\u4e00\u6574\u5957MAC-in-MAC\u7684\u8f6c\u53d1\u673a\u5236\u3002\u4f46PBB\u53ea\u5b9a\u4e49\u4e86\u8f6c\u53d1\u5e73\u9762\u7684\u5c01\u88c5\u5185\u5bb9\uff0c\u5f53\u62a5\u6587\u5c01\u88c5\u4e0a\u5916\u5c42Ethernet\u62a5\u5934\u5728\u8fd0\u8425\u5546\u9aa8\u5e72\u533a\u57df\u4e8c\u5c42\u7f51\u7edc\u4e2d\u65f6\uff0c\u4ecd\u7136\u9700\u8981\u4f9d\u9760\u4f20\u7edf\u7684STP\u8fdb\u884c\u73af\u8def\u907f\u514d\u548c\u8f6c\u53d1\u63a7\u5236\u3002<\/p>\n<p>\u4e8e\u662fIEEE\u57282009\u5e74\u53c8\u5b9a\u4e49\u4e86802.1Qay\u6807\u51c6\uff1aPBB-TE\uff08Provider Backbone Bridge Traffic Engineering\uff09\uff0c\u7528\u4e8e\u5728\u8fd0\u8425\u5546\u7684\u9aa8\u5e72\u533a\u57df\u4e2d\u8fdb\u884c\u62d3\u6251\u7ba1\u7406\u4e0e\u73af\u8def\u4fdd\u62a4\uff0c\u8bf4\u767d\u4e86\u5c31\u662f\u901a\u8fc7\u624b\u5de5\u65b9\u5f0f\u914d\u7f6e\u4e00\u5806\u6307\u5b9a\u8def\u5f84\u53d6\u4ee3STP\u7684\u81ea\u52a8\u6536\u655b\u3002\u4f46PBB-TE\u9759\u6001\u89c4\u5212\u8f6c\u53d1\u8def\u5f84\uff0c\u660e\u663e\u65e0\u6cd5\u9002\u7528\u4e8e\u5927\u578b\u4e8c\u5c42\u7f51\u7edc\u6269\u5c55\uff0c\u4e8e\u662fIEEE\u518d\u641e\u51fa\u4e2a802.1aq SPB\uff08Shortest Path Bridging\uff09\u6765\uff0c\u8fd9\u56de\u5c31\u76f4\u9762\u5927\u4e8c\u5c42\u7f51\u7edc\u7684\u9700\u6c42\u4e86\u3002<\/p>\n<p>\u4ece\u5b9e\u73b0\u4e0a\u6765\u770b\uff0cSPB\u540c\u6837\u662f\u91c7\u7528\u4e86IS-IS\u4f5c\u4e3a\u5176\u63a7\u5236\u5e73\u9762\u534f\u8bae\u8fdb\u884c\u62d3\u6251\u5b66\u4e60\u8ba1\u7b97\uff0c\u800c\u7528MAC-in-MAC\u5c01\u88c5\u65b9\u5f0f\u5728SPB\u533a\u57df\u5185\u90e8\u8fdb\u884c\u62a5\u6587\u4f20\u8f93\u3002\u6240\u4ee5\u8fd9\u4e2a\u5b9e\u73b0\u548cTRILL\u8fd8\u662f\u975e\u5e38\u76f8\u4f3c\u7684\u3002<\/p>\n<p><a class=\"light-link\" href=\"https:\/\/blog.90.vc\/usr\/uploads\/2021\/09\/3508779545.png\" data-fancybox=\"gallery\" data-type=\"image\" data-caption=\"\u6280\u672f\u53d1\u70e7\u53cb\uff1a\u95f2\u8bdd\u5927\u4e8c\u5c42\u7f51\u7edc-1740593-7\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/blog.90.vc\/usr\/uploads\/2021\/09\/3508779545.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" class=\"block\" data-original=\"https:\/\/blog.90.vc\/usr\/uploads\/2021\/09\/3508779545.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u6280\u672f\u53d1\u70e7\u53cb\uff1a\u95f2\u8bdd\u5927\u4e8c\u5c42\u7f51\u7edc-1740593-7\" \/><\/div><\/a><\/p>\n<p>\u5173\u4e8eSPB\u7684\u8be6\u7ec6\u6280\u672f\u539f\u7406\uff0c\u4ee5\u540e\u6709\u673a\u4f1a\u518d\u505a\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u672c\u6587\u4e0d\u8be6\u8ff0\u3002<\/p>\n<div data-unique=\"2.3\u756a\u5916\"><\/div>\n<h3 id=\"2-3------\u756a\u5916\">2.3 \u756a\u5916<\/h3>\n<p>\u5173\u4e8eTRILL\u548cSPB\uff0c\u5728\u6570\u901a\u9886\u57df\u90fd\u6709\u5404\u81ea\u7684\u652f\u6301\u5382\u5546\u3002\u4ee5CISCO\u4e3a\u9996\uff0c\u534e\u4e3a\u3001Broadcom\u3001Juniper\u7b49\u90fd\u662fTRILL\u7684\u6709\u529b\u652f\u6301\u8005\u3002\u800cAvaya\u3001ALU\u7b49\u5219\u575a\u5b9a\u7684\u7ad9\u5728SPB\u8fd9\u8fb9\u3002\u800c\u50cfHP\u7b49\u5382\u5546\uff0c\u5219\u8868\u793a\u6211\u4e24\u4e2a\u90fd\u652f\u6301\u3002\u3002\u3002\u3002\u3002\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u603b\u7684\u6765\u8bf4\uff0c\u50cfTRILL\u548cSPB\u8fd9\u4e9b\u6280\u672f\u662fCT\u5382\u5546\u4e3b\u63a8\u7684\u5927\u4e8c\u5c42\u7f51\u7edc\u6280\u672f\u65b9\u6848\u3002\u4e3a\u4ec0\u4e48CT\u5382\u5546\u4f1a\u949f\u60c5\u4e8e\u8fd9\u4e9b\u6280\u672f\u5462\uff1f\u5176\u5b9e\u8fd9\u4e5f\u5f88\u5bb9\u6613\u7406\u89e3\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u6280\u672f\u7684\u90e8\u7f72\u548c\u5b9e\u65bd\u90fd\u662f\u5728\u7f51\u7edc\u8bbe\u5907\u4e0a\u8fdb\u884c\u7684\uff0c\u4e0e\u670d\u52a1\u5668\u7b49IT\u8bbe\u65bd\u65e0\u5173\uff0c\u6240\u4ee5CT\u5382\u5546\u53ef\u4ee5\u5168\u76d8\u63a7\u5236\u3002<\/p>\n<div data-unique=\"3\u7792\u5929\u8fc7\u6d77\u6d3e\"><\/div>\n<h2 id=\"3------\u7792\u5929\u8fc7\u6d77\u6d3e\">3 \u7792\u5929\u8fc7\u6d77\u6d3e<\/h2>\n<p>\u7792\u5929\u8fc7\u6d77\u6d3e\u6b63\u5f0f\u7684\u5b66\u540d\u5e94\u8be5\u53eb<strong>Overlay****\u6d3e<\/strong>\uff0c\u5c31\u662f\u901a\u8fc7\u7528\u96a7\u9053\u5c01\u88c5\u7684\u65b9\u5f0f\uff0c\u5c06\u6e90\u4e3b\u673a\u53d1\u51fa\u7684\u539f\u59cb\u4e8c\u5c42\u62a5\u6587\u5c01\u88c5\u540e\u5728\u73b0\u6709\u7f51\u7edc\u4e2d\u8fdb\u884c\u900f\u660e\u4f20\u8f93\uff0c\u5230\u8fbe\u76ee\u7684\u5730\u4e4b\u540e\u518d\u89e3\u5c01\u88c5\u5f97\u5230\u539f\u59cb\u62a5\u6587\uff0c\u8f6c\u53d1\u7ed9\u76ee\u6807\u4e3b\u673a\uff0c\u4ece\u800c\u5b9e\u73b0\u4e3b\u673a\u4e4b\u95f4\u7684\u4e8c\u5c42\u901a\u4fe1\u3002<\/p>\n<p>\u901a\u8fc7\u5c01\u88c5\u548c\u89e3\u5c01\u88c5\uff0c\u76f8\u5f53\u4e8e\u4e00\u4e2a\u5927\u4e8c\u5c42\u7f51\u7edc\u53e0\u52a0\u5728\u73b0\u6709\u7684\u57fa\u7840\u7f51\u7edc\u4e4b\u4e0a\uff0c\u6240\u4ee5\u79f0\u4e3aOverlay\u6d3e\u3002\u7792\u5929\u8fc7\u6d77\u7684\u542b\u4e49\u4e5f\u5c31\u5728\u4e8e\u6b64\u3002<\/p>\n<div data-unique=\"3.1\u601d\u60f3\"><\/div>\n<h3 id=\"3-1------\u601d\u60f3\">3.1 \u601d\u60f3<\/h3>\n<p>\u5176\u5b9e\u5bf9\u4e8e\u96a7\u9053\u5c01\u88c5\uff0c\u6211\u4eec\u5e76\u4e0d\u964c\u751f\uff0c\u6bd4\u5982\u6700\u5178\u578b\u7684GRE\uff0c\u5c31\u662f\u628a\u539f\u59cb\u6570\u636e\u62a5\u6587\u901a\u8fc7GRE\u5c01\u88c5\u4e4b\u540e\u5728\u4e09\u5c42\u7f51\u7edc\u4e2d\u8fdb\u884c\u4f20\u8f93\uff0c\u4ece\u4e3b\u673a\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u4e2d\u95f4\u7684\u4e09\u5c42\u7f51\u7edc\u662f\u900f\u660e\u4e0d\u53ef\u89c1\u7684\uff0c\u4e5f\u5c31\u76f8\u5f53\u4e8e\u76f4\u63a5\u5728\u6e90\u7f51\u7edc\u548c\u76ee\u6807\u7f51\u7edc\u4e4b\u95f4\u76f4\u63a5\u62c9\u4e86\u4e00\u6839\u201c\u5149\u7ea4\u201d\uff01<\/p>\n<p><a class=\"light-link\" href=\"https:\/\/blog.90.vc\/usr\/uploads\/2021\/09\/1137763136.png\" data-fancybox=\"gallery\" data-type=\"image\" data-caption=\"\u6280\u672f\u53d1\u70e7\u53cb\uff1a\u95f2\u8bdd\u5927\u4e8c\u5c42\u7f51\u7edc-1740593-8\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/blog.90.vc\/usr\/uploads\/2021\/09\/1137763136.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" class=\"block\" data-original=\"https:\/\/blog.90.vc\/usr\/uploads\/2021\/09\/1137763136.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u6280\u672f\u53d1\u70e7\u53cb\uff1a\u95f2\u8bdd\u5927\u4e8c\u5c42\u7f51\u7edc-1740593-8\" \/><\/div><\/a><br \/>\n<a class=\"light-link\" href=\"https:\/\/blog.90.vc\/usr\/uploads\/2021\/09\/2957970372.png\" data-fancybox=\"gallery\" data-type=\"image\" 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