{"id":902,"date":"2022-06-02T12:04:07","date_gmt":"2022-06-02T04:04:07","guid":{"rendered":"https:\/\/choson.lifenet.com.tw\/?p=902"},"modified":"2023-03-29T10:53:03","modified_gmt":"2023-03-29T02:53:03","slug":"%e8%99%9b%e6%93%ac%e5%8d%80%e5%9f%9f%e7%b6%b2%e8%b7%af%e6%93%b4%e5%b1%95%ef%bc%88virtual-extensible-lan%ef%bc%9avxlan%ef%bc%89","status":"publish","type":"post","link":"https:\/\/choson.lifenet.com.tw\/?p=902","title":{"rendered":"\u865b\u64ec\u5340\u57df\u7db2\u8def\u64f4\u5c55\uff08Virtual Extensible LAN\uff1aVXLAN\uff09"},"content":{"rendered":"\n<p><strong>\u865b\u64ec\u5340\u57df\u7db2\u8def (VLAN)<\/strong><br><img decoding=\"async\" src=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210905\/20132160yVhs9wEOyW.jpg\" alt=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210905\/20132160yVhs9wEOyW.jpg\"><br>-VLAN \u7d44\uff08\u4f86\u6e90\uff1aCisco Press\uff09<\/p>\n\n\n\n<p>\u865b\u64ec LAN (VLAN) \u662f\u5728\u6578\u64da\u93c8\u8def\u5c64\uff08OSI \u7b2c 2 \u5c64\uff09\u7684\u8a08\u7b97\u6a5f\u7db2\u7d61\u4e2d\u5283\u5206\u548c\u9694\u96e2\u7684\u4efb\u4f55\u5ee3\u64ad\u57df\u3002<br>\u8cc7\u6599\u4f86\u6e90\uff1a<a href=\"https:\/\/en.wikipedia.org\/wiki\/Virtual_LAN\" target=\"_blank\" rel=\"noreferrer noopener\">\u7dad\u57fa\u767e\u79d1<\/a><br>\u76ee\u524d\u7684VLAN\u6578\u91cf\u6709\u9650\uff0c\u70ba4094\uff0c\u7121\u6cd5\u6eff\u8db3\u6578\u64da\u4e2d\u5fc3\u6216\u96f2\u8a08\u7b97\u7684\u9700\u6c42\uff0c\u5177\u6709\u57fa\u65bc\u79df\u6236\u9694\u96e2\u7db2\u7d61\u7684\u5171\u540c\u7279\u9ede\u3002\u4f8b\u5982\uff0cAzure \u6216 AWS \u7684\u5ba2\u6236\u9060\u591a\u65bc 4094\u3002<\/p>\n\n\n\n<p><strong>\u79c1\u6709VLAN<\/strong><br><img decoding=\"async\" src=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210905\/20132160rGnrhFAheb.jpg\" alt=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210905\/20132160rGnrhFAheb.jpg\"><br>-\u9152\u5e97\u5c08\u7528 VLAN<br>\u5c08\u7528 VLAN\uff0c\u4e5f\u7a31\u70ba\u7aef\u53e3\u9694\u96e2\uff0c\u662f\u8a08\u7b97\u6a5f\u7db2\u7d61\u4e2d\u7684\u4e00\u7a2e\u6280\u8853\uff0c\u5176\u4e2d VLAN \u5305\u542b\u53d7\u9650\u5236\u7684\u4ea4\u63db\u6a5f\u7aef\u53e3\uff0c\u56e0\u6b64\u5b83\u5011\u53ea\u80fd\u8207\u7d66\u5b9a\u7684\u4e0a\u884c\u93c8\u8def\u9032\u884c\u901a\u4fe1\u3002\u53d7\u9650\u7aef\u53e3\u7a31\u70ba\u5c08\u7528\u7aef\u53e3\u3002\u6bcf\u500b\u5c08\u7528 VLAN \u901a\u5e38\u5305\u542b\u8a31\u591a\u5c08\u7528\u7aef\u53e3\u548c\u4e00\u500b\u4e0a\u884c\u93c8\u8def\u3002\u4e0a\u884c\u93c8\u8def\u901a\u5e38\u662f\u9023\u63a5\u5230\u8def\u7531\u5668\u3001\u9632\u706b\u7246\u3001\u670d\u52d9\u5668\u3001\u63d0\u4f9b\u5546\u7db2\u7d61\u6216\u985e\u4f3c\u4e2d\u592e\u8cc7\u6e90\u7684\u7aef\u53e3\uff08\u6216\u93c8\u8def\u805a\u5408\u7d44\uff09\u3002<br>\u5c08\u7528 VLAN \u7684\u5178\u578b\u61c9\u7528\u662f\u9152\u5e97\u6216\u4e59\u592a\u7db2\u5230\u5bb6\u5ead\u7db2\u7d61\uff0c\u5176\u4e2d\u6bcf\u500b\u623f\u9593\u6216\u516c\u5bd3\u90fd\u6709\u4e00\u500b\u7528\u65bc Internet \u8a2a\u554f\u7684\u7aef\u53e3\u3002<br>\u8cc7\u6599\u4f86\u6e90\uff1a<a href=\"https:\/\/en.wikipedia.org\/wiki\/Private_VLAN\" target=\"_blank\" rel=\"noreferrer noopener\">\u7dad\u57fa\u767e\u79d1<\/a><\/p>\n\n\n\n<p><strong>VXLAN \u554f\u984c\u9673\u8ff0(VXLAN Problem Statement)<\/strong><br>VXLAN (RFC 7348) \u5c31\u662f\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\u800c\u8a2d\u8a08\u7684\u3002VXLAN \u554f\u984c\u9673\u8ff0\u7a81\u51fa\u4e86\u4ee5\u4e0b\u554f\u984c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u751f\u6210\u6a39(Spanning Tree)\u548c VLAN \u7bc4\u570d\u65bd\u52a0\u7684\u9650\u5236<\/li>\n\n\n\n<li>\u591a\u79df\u6236\u74b0\u5883(Multi-tenant)<\/li>\n\n\n\n<li>ToR\uff08\u67b6\u9802\u5f0f\uff09\u4ea4\u63db\u6a5f\u7684\u8868\u5c3a\u5bf8\u4e0d\u8db3<br>\u5b83\u9084\u5beb\u9053\uff1a\u201cVXLAN\uff08\u865b\u64ec\u53ef\u64f4\u5c55\u5340\u57df\u7db2\u8def\uff09\u89e3\u6c7a\u4e86\u5728\u591a\u79df\u6236\u74b0\u5883\u4e2d\u5b58\u5728\u865b\u64ec\u6a5f\u7684\u60c5\u6cc1\u4e0b\u7b2c 2 \u5c64\u548c\u7b2c 3 \u5c64\u6578\u64da\u4e2d\u5fc3\u7db2\u7d61\u57fa\u790e\u8a2d\u65bd\u7684\u4e0a\u8ff0\u8981\u6c42\u3002\u201d<\/li>\n<\/ol>\n\n\n\n<p><strong>VXLAN \u4f5c\u70ba\u8986\u84cb\u7db2\u7d61\uff08VXLAN as Overlay Network\uff09<\/strong><br>VXLAN \u5c07\u50b3\u7d71\u7684 VLAN \u5e40\u5c01\u88dd\u70ba IP \u8ca0\u8f09\u6216 MAC-over-IP\uff0c\u4ee5\u652f\u6301\u4e3b\u5e79\u4ea4\u63db\u6a5f\u548c\u8449\u4ea4\u63db\u6a5f\u4e4b\u9593\u7684\u901a\u4fe1\u3002\u6240\u8ff0\u8449\u810a\u67b6\u69cb\u63a1\u7528\u8449\u7247\u958b\u95dc\u548c\u4e3b\u5e79\u4ea4\u63db\u6a5f\u7d44\u6210\u7684\u5169\u5c64\u7684\u7db2\u7d61\u62d3\u64b2\u3002<br><img decoding=\"async\" src=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210905\/20132160a4WkntnsZQ.png\" alt=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210905\/20132160a4WkntnsZQ.png\"><\/p>\n\n\n\n<p><strong>\u8986\u84cb\u548c\u5e95\u5c64\u7db2\u7d61\uff08Overlay and Underlay Networks\uff09<\/strong><br>\u5e95\u5c64\u7db2\u7d61 \u6216\u6240\u8b02\u7684 \u7269\u7406\u7db2\u7d61 \uff0c\u50b3\u7d71\u5354\u8b70\u5728\u5176\u4e2d\u767c\u63ee\u4f5c\u7528\u3002\u5e95\u5c64\u7db2\u7d61\u662f\u7269\u7406\u57fa\u790e\u8a2d\u65bd\uff0c\u5728\u5176\u4e0a\u69cb\u5efa\u8986\u84cb\u7db2\u7d61\u3002\u5b83\u662f\u8ca0\u8cac\u8de8\u7db2\u7d61\u50b3\u8f38\u6578\u64da\u5305\u7684\u5e95\u5c64\u7db2\u7d61\u3002<br>\uf0a7 \u5e95\u5c64\u5354\u8b70\uff1aBGP\u3001OSPF\u3001IS-IS\u3001EIGRP<br>\u4e00\u500b \u8986\u84cb\u7db2\u7d61 \u662f\u4e00\u500b \u865b\u64ec\u7684\u7db2\u7d61 \u88ab\u8def\u7531\u5728\u5e95\u5c64\u7db2\u7d61\u57fa\u790e\u8a2d\u65bd\u4e4b\u4e0a\uff0c\u8def\u7531\u6c7a\u5b9a\u5c07\u767c\u751f\u5728\u8edf\u4ef6\u7684\u5e6b\u52a9\u3002<br>\uf0a7 \u8986\u84cb\u5354\u8b70\uff1aVXLAN\u3001NVGRE\u3001GRE\u3001OTV\u3001OMP\u3001mVPN<br>\u8986\u84cb\u7db2\u7d61\u662f\u4e00\u7a2e\u4f7f\u7528\u8edf\u4ef6\u5275\u5efa\u7db2\u7d61\u62bd\u8c61\u5c64\u7684\u65b9\u6cd5\uff0c\u53ef\u7528\u65bc\u5728\u7269\u7406\u7db2\u7d61\u4e4b\u4e0a\u904b\u884c\u591a\u500b\u7368\u7acb\u7684\u3001\u96e2\u6563\u7684\u865b\u64ec\u5316\u7db2\u7d61\u5c64\uff0c\u901a\u5e38\u63d0\u4f9b\u65b0\u7684\u61c9\u7528\u7a0b\u5e8f\u6216\u5b89\u5168\u512a\u52e2\u3002<br>\u4f86\u6e90\uff1a<a href=\"https:\/\/www.vmwareseries.com\/underlay-network-and-overlay-network\/\" target=\"_blank\" rel=\"noreferrer noopener\">Underlay Network \u548c Overlay Network<\/a><\/p>\n\n\n\n<p><strong>\u653b\u64ca\u5411\u91cf\uff08Attack Vector\uff09<\/strong><br>VXLAN \u662f\u4e00\u500b MAC-over-IP \u8986\u84cb\u7db2\u7d61\uff0c\u5b83\u7e7c\u627f\u4e86\u7b2c 2 \u5c64\u548c\u7b2c 3 \u5c64\u653b\u64ca\u5411\u91cf\uff0c\u56e0\u6b64\u5b83\u64f4\u5c55\u4e86\u7b2c 2 \u5c64\u7db2\u7d61\u7684\u653b\u64ca\u5411\u91cf\u3002<br>\u50b3\u7d71\u4e0a\uff0c \u7b2c 2 \u5c64\u7db2\u7d61 \u53ea\u80fd\u88ab\u60e1\u610f\u7aef\u9ede\u5f9e\u201c\u5167\u90e8\u201d\u653b\u64ca\u2014\u2014\u8981\u4e48\uff1a<br>. \u901a\u904e\u4e0d\u7576\u8a2a\u554f LAN \u548c\u7aba\u63a2\u6d41\u91cf\uff0c<br>. \u901a\u904e\u6ce8\u5165\u6b3a\u9a19\u6027\u6578\u64da\u5305\u4f86\u201c\u63a5\u7ba1\u201d\u53e6\u4e00\u500b MAC \u5730\u5740\uff0c\u6216<br>. \u901a\u904e\u6c3e\u6feb\u4e26\u5c0e\u81f4\u62d2\u7d55\u670d\u52d9\u3002<br>\u7528\u65bc\u50b3\u9001\u7b2c 2 \u5c64\u6d41\u91cf\u7684 MAC-over-IP \u6a5f\u5236\u986f\u8457\u64f4\u5c55\u4e86\u6b64\u653b\u64ca\u9762\u3002 \u9019\u53ef\u80fd\u662f\u7531\u65bc\u6d41\u6c13\u5c07\u81ea\u5df1\u6ce8\u5165\u7db2\u7d61\u800c\u767c\u751f\u7684\uff1a<br>. \u901a\u904e \u8a02\u95b1\u4e00\u500b\u6216\u591a\u500b \u627f\u8f09 VXLAN \u7db2\u6bb5\u5ee3\u64ad\u6d41\u91cf\u7684\u591a\u64ad\u7d44\uff0c\u4ee5\u53ca<br>. \u901a\u904e\u5c07 MAC-over-UDP \u5e40\u767c\u9001 \u5230\u50b3\u8f38\u7db2\u7d61\u4ee5\u6ce8\u5165\u865b\u5047\u6d41\u91cf\uff0c\u53ef\u80fd\u662f\u70ba\u4e86\u52ab\u6301 MAC \u5730\u5740\u3002<br>\u672c\u6587\u6a94\u4e0d\u5305\u542b\u91dd\u5c0d\u6b64\u985e\u653b\u64ca\u7684\u5177\u9ad4\u63aa\u65bd\uff0c\u800c\u662f\u4f9d\u8cf4\u65bc IP \u4e4b\u4e0a\u7684\u5176\u4ed6\u50b3\u7d71\u6a5f\u5236\u3002\u76f8\u53cd\uff0c\u672c\u7bc0\u6982\u8ff0\u4e86 VXLAN \u74b0\u5883\u4e2d\u4e00\u4e9b\u53ef\u80fd\u7684\u5b89\u5168\u65b9\u6cd5\u3002<br>. \u901a\u904e\u9650\u5236\u5728 VXLAN \u74b0\u5883\u4e2d\u90e8\u7f72\u548c\u7ba1\u7406\u865b\u64ec\u6a5f\/\u7db2\u95dc\u7684\u4eba\u54e1\u7684\u7ba1\u7406\u548c\u7ba1\u7406\u7bc4\u570d\uff0c\u53ef\u4ee5\u6e1b\u8f15\u6d41\u6c13\u7aef\u9ede\u7684\u50b3\u7d71\u7b2c 2 \u5c64\u653b\u64ca\u3002\u6b64\u5916\uff0c\u6b64\u985e\u7ba1\u7406\u63aa\u65bd\u53ef\u80fd\u6703\u901a\u904e 802.1X \u4e4b\u985e\u7684\u65b9\u6848\u5f97\u5230\u52a0\u5f37\uff0c\u4ee5\u5c0d\u55ae\u500b\u7aef\u9ede\u9032\u884c\u51c6\u5165\u63a7\u5236\u3002\u6b64\u5916\uff0c\u4f7f\u7528\u57fa\u65bc UDP \u7684 VXLAN \u5c01\u88dd\u53ef\u4ee5\u5728\u7269\u7406\u4ea4\u63db\u6a5f\u4e2d\u914d\u7f6e\u548c\u4f7f\u7528\u57fa\u65bc 5 \u5143\u7d44\u7684 ACL\uff08\u8a2a\u554f\u63a7\u5236\u5217\u8868\uff09\u529f\u80fd\u3002<br>. \u53ef\u4ee5\u4f7f\u7528 IPsec \u7b49\u50b3\u7d71\u5b89\u5168\u6a5f\u5236\u4fdd\u8b77 IP \u7db2\u7d61\u4e0a\u7684\u96a7\u9053\u6d41\u91cf\uff0c\u9019\u4e9b\u6a5f\u5236\u5c0d VXLAN \u6d41\u91cf\u9032\u884c\u8eab\u4efd\u9a57\u8b49\u548c\u53ef\u9078\u52a0\u5bc6\u3002\u7576\u7136\uff0c\u9019\u9700\u8981\u8207\u6388\u6b0a\u7aef\u9ede\u7684\u8eab\u4efd\u9a57\u8b49\u57fa\u790e\u8a2d\u65bd\u76f8\u7d50\u5408\uff0c\u4ee5\u7372\u53d6\u548c\u5206\u767c\u6191\u64da\u3002<br>. VXLAN \u8986\u84cb\u7db2\u7d61\u662f\u5728\u73fe\u6709 LAN \u57fa\u790e\u8a2d\u65bd\u4e0a\u6307\u5b9a\u548c\u904b\u884c\u7684\u3002\u70ba\u78ba\u4fdd VXLAN \u7aef\u9ede\u53ca\u5176 VTEP \u5728 LAN \u4e0a\u7372\u5f97\u6388\u6b0a\uff0c\u5efa\u8b70\u70ba VXLAN \u6d41\u91cf\u6307\u5b9a\u4e00\u500b VLAN\uff0c\u670d\u52d9\u5668\/VTEP \u901a\u904e\u6b64 VLAN \u767c\u9001 VXLAN \u6d41\u91cf\u4ee5\u63d0\u4f9b\u5b89\u5168\u63aa\u65bd\u3002<br>. \u6b64\u5916\uff0cVXLAN \u9700\u8981\u5728\u9019\u4e9b\u8986\u84cb\u7db2\u7d61\u4e2d\u6b63\u78ba\u6620\u5c04 VNI \u548c VM \u6210\u54e1\u8cc7\u683c\u3002\u671f\u671b\u4f7f\u7528\u73fe\u6709\u5b89\u5168\u65b9\u6cd5\u5b8c\u6210\u6b64\u6620\u5c04\u4e26\u5c07\u5176\u50b3\u9001\u5230 VTEP \u548c\u7db2\u95dc\u4e0a\u7684\u7ba1\u7406\u5be6\u9ad4\u3002<br>\u4f86\u6e90\uff1a<a href=\"https:\/\/datatracker.ietf.org\/doc\/rfc7348\/\" target=\"_blank\" rel=\"noreferrer noopener\">RFC 7348<\/a><\/p>\n\n\n\n<p><strong>\u5340\u57df\u7db2\u8def\u4e0a\u7684 EAP\uff08EAP over LAN\uff09<\/strong><br><img decoding=\"async\" src=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210905\/20132160KESGUnQzve.jpg\" alt=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210905\/20132160KESGUnQzve.jpg\"><br>-EAP \u548c 802.1X<br>IEEE 802.1X \u662f\u57fa\u65bc\u7aef\u53e3\u7684\u7db2\u7d61\u8a2a\u554f\u63a7\u5236 (PNAC) \u7684 IEEE \u6a19\u6e96\u3002\u5b83\u662f IEEE 802.1 \u7db2\u7d61\u5354\u8b70\u7d44\u7684\u4e00\u90e8\u5206\u3002\u5b83\u70ba\u5e0c\u671b\u9023\u63a5\u5230 LAN \u6216 WLAN \u7684\u8a2d\u5099\u63d0\u4f9b\u8eab\u4efd\u9a57\u8b49\u6a5f\u5236\u3002<br>IEEE 802.1X \u5b9a\u7fa9\u4e86\u57fa\u65bc IEEE 802.11 \u7684\u53ef\u64f4\u5c55\u8eab\u4efd\u9a57\u8b49\u5354\u8b70 (EAP) \u7684\u5c01\u88dd\uff0c\u7a31\u70ba\u201cEAP over LAN\u201d\u6216 EAPOL\u3002EAPOL \u6700\u521d\u662f\u70ba 802.1X-2001 \u4e2d\u7684 IEEE 802.3 \u4ee5\u592a\u7db2\u8a2d\u8a08\u7684\uff0c\u4f46\u5728 802.1X-2001 \u4e2d\u88ab\u95e1\u660e\u4ee5\u9069\u5408\u5176\u4ed6 IEEE 802 LAN \u6280\u8853\uff0c\u4f8b\u5982 IEEE 802.11 \u7121\u7dda\u548c\u5149\u7e96\u5206\u4f48\u5f0f\u6578\u64da\u63a5\u53e3\uff08ANSI X3T9.5\/X3T12 \u548c ISO 9314\uff09 . \u5728 802.1X-2010 \u4e2d\uff0cEAPOL \u4e5f\u7d93\u904e\u4fee\u6539\u4ee5\u8207 IEEE 802.1AE\uff08\u201cMACsec\u201d\uff09\u548c IEEE 802.1AR\uff08\u5b89\u5168\u8a2d\u5099\u8eab\u4efd\uff0cDevID\uff09\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u652f\u6301\u5167\u90e8 LAN \u6bb5\u4e0a\u7684\u670d\u52d9\u8b58\u5225\u548c\u53ef\u9078\u7684\u9ede\u5c0d\u9ede\u52a0\u5bc6\u3002<br>\u8cc7\u6599\u4f86\u6e90\uff1a<a href=\"https:\/\/en.wikipedia.org\/wiki\/IEEE_802.1X\" target=\"_blank\" rel=\"noreferrer noopener\">\u7dad\u57fa\u767e\u79d1<\/a><\/p>\n\n\n\n<p>\u53c3\u8003<br>.&nbsp;<a href=\"https:\/\/datatracker.ietf.org\/doc\/rfc7348\/?include_text=1\" target=\"_blank\" rel=\"noreferrer noopener\">\u865b\u64ec\u53ef\u64f4\u5c55\u5340\u57df\u7db2\u8def (VXLAN)\uff1a\u5728\u7b2c 3 \u5c64\u7db2\u7d61\u4e0a\u8986\u84cb\u865b\u64ec\u5316\u7b2c 2 \u5c64\u7db2\u7d61\u7684\u6846\u67b6 (RFC 7348)<\/a><br>.&nbsp;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Virtual_Extensible_LAN\" target=\"_blank\" rel=\"noreferrer noopener\">\u865b\u64ec\u53ef\u64f4\u5c55 LAN\uff08\u7dad\u57fa\u767e\u79d1\uff09<\/a><br>.&nbsp;<a href=\"https:\/\/www.juniper.net\/us\/en\/products-services\/what-is\/vxlan\/#:~:text=VXLAN%20is%20a%20tunneling%20protocol,(VNI)%20that%20segments%20traffic.\" target=\"_blank\" rel=\"noreferrer noopener\">\u4ec0\u9ebc\u662f VXLAN\uff1f\uff08Juniper\uff09<\/a><br>.&nbsp;<a href=\"https:\/\/www.vmwareseries.com\/underlay-network-and-overlay-network\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u5e95\u5c64\u7db2\u7d61\u548c\u8986\u84cb\u7db2\u7d61<\/a><br>.&nbsp;<a href=\"https:\/\/community.connection.com\/network-engineers-perspective-virtual-extensible-lan-vxlan\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u7db2\u7d61\u5de5\u7a0b\u5e2b\u5c0d\u865b\u64ec\u53ef\u64f4\u5c55\u5340\u57df\u7db2\u8def (VXLAN) \u7684\u770b\u6cd5<\/a><br>.&nbsp;<a href=\"https:\/\/forum.huawei.com\/enterprise\/en\/what-do-tor-eor-and-mor-mean\/thread\/479649-861\" target=\"_blank\" rel=\"noreferrer noopener\">TOR\u3001EOR \u548c MOR \u662f\u4ec0\u9ebc\u610f\u601d\uff1f<\/a><br>.&nbsp;<a href=\"https:\/\/community.fs.com\/blog\/popular-tor-and-tor-switch-in-data-center-architectures.html\" target=\"_blank\" rel=\"noreferrer noopener\">\u6578\u64da\u4e2d\u5fc3\u67b6\u69cb\u4e2d\u6d41\u884c\u7684 ToR \u548c ToR \u4ea4\u63db\u6a5f<\/a><br>.&nbsp;<a href=\"https:\/\/youtu.be\/YNqKDI_bnPM\" target=\"_blank\" rel=\"noreferrer noopener\">\u865b\u64ec\u5340\u57df\u7db2\u8def | \u7b2c 1 \u90e8\u5206 \u2013 VxLAN \u7684\u5de5\u4f5c\u539f\u7406 (YouTube)<\/a><br>.&nbsp;<a href=\"https:\/\/youtu.be\/QPqVtguOz4w\" target=\"_blank\" rel=\"noreferrer noopener\">VXLAN \u4ecb\u7d39 (YouTube)<\/a><br>.&nbsp;<a href=\"https:\/\/youtu.be\/cos4ujj80iI\" target=\"_blank\" rel=\"noreferrer noopener\">SD-WAN \u7684\u57fa\u790e\u77e5\u8b58<\/a><br>.&nbsp;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Private_VLAN\" target=\"_blank\" rel=\"noreferrer noopener\">\u79c1\u6709VLAN<\/a><br>.&nbsp;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Virtual_Extensible_LAN\" target=\"_blank\" rel=\"noreferrer noopener\">\u865b\u64ec\u53ef\u64f4\u5c55\u5340\u57df\u7db2\u8def<\/a><br>.&nbsp;<a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc7348\" target=\"_blank\" rel=\"noreferrer noopener\">RFC 7348\uff1a\u865b\u64ec\u53ef\u64f4\u5c55\u5340\u57df\u7db2\u8def (VXLAN)\uff1a\u5728\u7b2c 3 \u5c64\u7db2\u7d61\u4e0a\u8986\u84cb\u865b\u64ec\u5316\u7b2c 2 \u5c64\u7db2\u7d61\u7684\u6846\u67b6<\/a><\/p>\n\n\n\n<p>\u8cc7\u6599\u4f86\u6e90\uff1a\u00a0<a rel=\"noreferrer noopener\" href=\"https:\/\/wentzwu.com\/2021\/08\/04\/cissp-practice-questions-20210804\/\" target=\"_blank\">Wentz Wu QOTD-20210804<\/a><\/p>\n\n\n\n<p>PS:\u6b64\u6587\u7ae0\u7d93\u904e\u4f5c\u8005\u540c\u610f\u520a\u767b \u4e26\u4e14\u6388\u6b0a\u53ef\u4ee5\u7ffb\u8b6f\u6210\u4e2d\u6587<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u865b\u64ec\u5340\u57df\u7db2\u8def (VLAN)-VLAN \u7d44\uff08\u4f86\u6e90\uff1aCisco Press\uff09 \u865b\u64ec LAN (VLAN) \u662f\u5728\u6578\u64da [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-902","post","type-post","status-publish","format-standard","hentry","category-cisspcertified-information-systems-security-professional"],"_links":{"self":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=902"}],"version-history":[{"count":2,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/902\/revisions"}],"predecessor-version":[{"id":2740,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/902\/revisions\/2740"}],"wp:attachment":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}