{"id":375,"date":"2026-04-29T10:10:05","date_gmt":"2026-04-29T02:10:05","guid":{"rendered":"http:\/\/danielw.top\/?p=375"},"modified":"2026-04-29T10:14:29","modified_gmt":"2026-04-29T02:14:29","slug":"vxlan%e6%8a%80%e6%9c%af","status":"publish","type":"post","link":"http:\/\/danielw.top\/?p=375","title":{"rendered":"VxLan\u6280\u672f"},"content":{"rendered":"<h1>VxLan\u6280\u672f<\/h1>\n<p>VXLAN \u5b9e\u8d28\u4e0a\u662f\u4e00\u79cdVPN\uff08\u865a\u62df\u4e13\u7528\u7f51\u7edc\uff09\u6280\u672f\uff0c\u80fd\u591f\u5728\u4efb\u610f\u8def\u7531\u53ef\u8fbe\u7684\u7269\u7406\u7f51\u7edc\uff08Underlay\u7f51\u7edc\uff09\u4e0a\u53e0\u52a0\u4e8c\u5c42\u865a\u62df\u7f51\u7edc\uff08Overlay\u7f51\u7edc\uff09\u3002\u5b83\u901a\u8fc7VXLAN\u7f51\u5173\u4e4b\u95f4\u7684VXLAN\u96a7\u9053\u5b9e\u73b0\u7f51\u7edc\u5185\u90e8\u7684\u4e92\u901a\uff0c\u540c\u65f6\u4e5f\u53ef\u4ee5\u4e0e\u4f20\u7edf\u975eVXLAN\u7f51\u7edc\u4e92\u901a\u3002<\/p>\n<p>VXLAN \u4f7f\u7528MAC in UDP\u7684\u5c01\u88c5\u65b9\u5f0f\uff0c\u5c06\u4ee5\u592a\u7f51\u5e27\u5c01\u88c5\u5728UDP\u62a5\u5934\u5185\uff0c\u5e76\u901a\u8fc7IP\u62a5\u5934\u5728Underlay\u7f51\u7edc\u4e2d\u4f20\u8f93\uff0c\u4ece\u800c\u5ef6\u4f38\u4e8c\u5c42\u7f51\u7edc\u3002\u7531\u4e8e\u4e09\u5c42\u7f51\u7edc\u6ca1\u6709\u7f51\u7edc\u7ed3\u6784\u9650\u5236\uff0cVXLAN \u5177\u6709\u5927\u89c4\u6a21\u6269\u5c55\u80fd\u529b\uff0c\u4f7f\u865a\u62df\u673a\u7684\u70ed\u8fc1\u79fb\u4e0d\u53d7\u9650\u5236\u3002<\/p>\n<h2>VXLAN Overlay\u7f51\u7edc<\/h2>\n<p>VXLAN Overlay\u7f51\u7edc\u6839\u636eVXLAN\u96a7\u9053\u7aef\u70b9\u8bbe\u5907\u7684\u4e0d\u540c\u5f62\u6001\uff0c\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u4e09\u79cd\u7c7b\u578b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/fc2491618266484187b05287ca690b2c.png\" alt=\"img\" \/><\/p>\n<ul>\n<li>\n<p>Network Overlay<\/p>\n<ul>\n<li>\n<p>\u5728\u8fd9\u79cd\u7c7b\u578b\u4e2d\uff0cVXLAN\u96a7\u9053\u7684\u4e24\u4e2a\u7aef\u70b9\u90fd\u662f\u7269\u7406\u4ea4\u6362\u673a\u3002Network Overlay\u8fdb\u4e00\u6b65\u5206\u4e3a\u96c6\u4e2d\u5f0f\u7f51\u5173\u548c\u5206\u5e03\u5f0f\u7f51\u5173\u4e24\u7c7b\uff1a<\/p>\n<\/li>\n<li>\n<p>\u96c6\u4e2d\u5f0f\u7f51\u5173\uff1a\u6240\u6709VXLAN\u7684\u7ec8\u7aef\u8bbe\u5907\u96c6\u4e2d\u5728\u5c11\u6570\u51e0\u4e2a\u7f51\u5173\u4e0a\u3002<\/p>\n<\/li>\n<li>\n<p>\u5206\u5e03\u5f0f\u7f51\u5173\uff1aVXLAN\u7684\u7ec8\u7aef\u8bbe\u5907\u5206\u5e03\u5728\u591a\u4e2a\u7f51\u5173\u4e0a\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u7684\u7075\u6d3b\u6027\u548c\u6269\u5c55\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Host Overlay<\/p>\n<ul>\n<li>\u5728\u8fd9\u79cd\u7c7b\u578b\u4e2d\uff0cVXLAN\u96a7\u9053\u7684\u4e24\u4e2a\u7aef\u70b9\u90fd\u662f\u865a\u62df\u4ea4\u6362\u673a\u3002\u6b64\u65f6\uff0c\u7269\u7406\u4ea4\u6362\u673a\uff08\u5982Spine\u548cLeaf\uff09\u4ec5\u8d1f\u8d23IP\u62a5\u6587\u7684\u9ad8\u901f\u8f6c\u53d1\uff0c\u4e0d\u53c2\u4e0eVXLAN\u7684\u5177\u4f53\u5904\u7406\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Hybrid Overlay<\/p>\n<ul>\n<li>\u5728Hybrid Overlay\u4e2d\uff0cVXLAN\u96a7\u9053\u7684\u7aef\u70b9\u65e2\u53ef\u4ee5\u662f\u865a\u62df\u4ea4\u6362\u673a\uff0c\u4e5f\u53ef\u4ee5\u662f\u7269\u7406\u4ea4\u6362\u673a\u3002\u8fd9\u79cd\u7c7b\u578b\u7ed3\u5408\u4e86Network Overlay\u548cHost Overlay\u7684\u7279\u70b9\uff0c\u63d0\u4f9b\u66f4\u5927\u7684\u7075\u6d3b\u6027\u548c\u9002\u5e94\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>VXLAN\u57fa\u672c\u6982\u5ff5<\/h2>\n<h3>NVE (Network Virtualization Edge)<\/h3>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/cccf518277f04dca880abf4cf4bdb454.png\" alt=\"img\" \/><\/p>\n<ul>\n<li>NVE\u662f\u5b9e\u73b0\u7f51\u7edc\u865a\u62df\u5316\u529f\u80fd\u7684\u7f51\u7edc\u8bbe\u5907\uff0c\u53ef\u4ee5\u662f\u786c\u4ef6\u4ea4\u6362\u673a\u6216\u865a\u62df\u4ea4\u6362\u673a\u3002\u5b83\u5728\u4e09\u5c42\u7f51\u7edc\u4e0a\u6784\u5efa\u4e8c\u5c42\u865a\u62df\u7f51\u7edc\u5e76\u8fd0\u884cVXLAN\u3002\u56fe\u4e2d\u7684SW1\u548cSW2\u90fd\u662fNVE\u8bbe\u5907<\/li>\n<\/ul>\n<h3>VTEP (VXLAN Tunnel Endpoints)<\/h3>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/9c66053a6a0841b5a517946fc125d96c.png\" alt=\"img\" \/><\/p>\n<ul>\n<li>VTEP\u662fVXLAN\u96a7\u9053\u7aef\u70b9\uff0c\u4f4d\u4e8eNVE\u4e2d\uff0c<strong>\u8d1f\u8d23VXLAN\u62a5\u6587\u7684\u5c01\u88c5\u548c\u89e3\u5c01\u88c5<\/strong>\u3002VXLAN\u62a5\u6587\u7684\u5916\u5c42IP\u5934\u90e8\u5305\u542b\u6e90VTEP\u7684IP\u5730\u5740\u548c\u76ee\u7684VTEP\u7684IP\u5730\u5740<\/li>\n<\/ul>\n<h3>VNI (VXLAN Network Identifier)<\/h3>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/07f663dcaa3e4144ab12568ab8c132f0.png\" alt=\"img\" \/><\/p>\n<ul>\n<li>L2 VNI\uff1a\u7c7b\u4f3c\u4e8eVLAN ID\uff0c\u7528\u4e8e\u6807\u8bc6\u4e8c\u5c42\u5e7f\u64ad\u57df\uff0c\u4e0d\u540c\u5e7f\u64ad\u57df\u7684\u865a\u62df\u673a\u65e0\u6cd5\u76f4\u63a5\u8fdb\u884c\u4e8c\u5c42\u901a\u4fe1\u3002<\/li>\n<li>L3 VNI\uff1a\u7528\u4e8e\u6807\u8bc6VPN\u5b9e\u4f8b\uff0c\u652f\u6301\u8de8\u5b50\u7f51\u8f6c\u53d1\u3002\u4e00\u4e2a\u79df\u6237\u53ef\u4ee5\u6709\u4e00\u4e2a\u6216\u591a\u4e2aVNI\uff0cVNI\u957f\u5ea6\u4e3a24\u4f4d\uff0c\u652f\u6301\u591a\u8fbe1600\u4e07\u4e2a\u79df\u6237\u3002<\/li>\n<\/ul>\n<h3>BD(Bridge Domain)<\/h3>\n<p>BD\u5728VXLAN\u4e2d\u7c7b\u4f3c\u4e8e\u4f20\u7edf\u7f51\u7edc\u4e2d\u7684VLAN\uff0c\u7528\u4e8e\u5212\u5206\u5e7f\u64ad\u57df\u3002\u6bcf\u4e2aBD\u4e0eVNI\u4ee51:1\u65b9\u5f0f\u6620\u5c04\uff0c\u540c\u4e00BD\u5185\u7684\u7ec8\u7aef\u53ef\u4ee5\u8fdb\u884c\u4e8c\u5c42\u901a\u4fe1\u3002<\/p>\n<h3>\u4e1a\u52a1\u63a5\u5165VXLAN\u7f51\u7edc<\/h3>\n<ul>\n<li>\n<p>\u4e8c\u5c42\u5b50\u63a5\u53e3\u65b9\u5f0f\uff1a\u4f8b\u5982\uff0c\u5728SW1\u521b\u5efa\u4e8c\u5c42\u5b50\u63a5\u53e3\u5173\u8054\u5e7f\u64ad\u57dfBD10\uff0c\u8be5\u5b50\u63a5\u53e3\u4e0b\u7684\u6d41\u91cf\u4f1a\u88ab\u6ce8\u5165\u5230BD10\u3002<\/p>\n<\/li>\n<li>\n<p>VLAN\u7ed1\u5b9a\u65b9\u5f0f\uff1a\u4f8b\u5982\uff0c\u5728SW2\u5c06VLAN10\u4e0e\u5e7f\u64ad\u57dfBD10\u5173\u8054\uff0c\u6240\u6709VLAN10\u7684\u6d41\u91cf\u4f1a\u88ab\u6ce8\u5165\u5230BD10\u3002<\/p>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/410e179b26d34c55bf5798119414ef85.png\" alt=\"img\" \/><\/p>\n<h3>\u4e8c\u5c42\uff08L2\uff09\u7f51\u5173<\/h3>\n<p>\u7528\u4e8e\u5b9e\u73b0VXLAN\u7f51\u7edc\u5185\u90e8\u7684\u4e8c\u5c42\u6d41\u91cf\u8f6c\u53d1\uff0c\u4ee5\u53ca\u4e0d\u540c\u5b50\u7f51\u7ec8\u7aef\u7684\u901a\u4fe1\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/c76ff56342e3417ca9c4b71fa6857c0e.png\" alt=\"img\" \/><\/p>\n<h3>\u4e09\u5c42\uff08L3\uff09\u7f51\u5173<\/h3>\n<p>VBDIF (Virtual Bridge Device Interface) \u7528\u4e8e\u5904\u7406VXLAN\u7f51\u7edc\u5185\u7ec8\u7aef\u7684\u8de8\u5b50\u7f51\u901a\u4fe1\u548c\u5bf9\u5916\u90e8\u7f51\u7edc\u7684\u8bbf\u95ee\u3002<\/p>\n<p>\u7c7b\u4f3c\u4e8e\u4f20\u7edf\u7f51\u7edc\u4e2d\u7684VLANIF\uff0cVBDIF\u5728VXLAN\u4e09\u5c42\u7f51\u5173\u4e0a\u914d\u7f6e\uff0c\u662f\u57fa\u4e8eBD\u521b\u5efa\u7684\u4e09\u5c42\u903b\u8f91\u63a5\u53e3\u3002\u5b83\u5141\u8bb8\u4e0d\u540c\u7f51\u6bb5\u7528\u6237\u901a\u8fc7VXLAN\u7f51\u7edc\u901a\u4fe1\uff0c\u53caVXLAN\u4e0e\u975eVXLAN\u7f51\u7edc\u4e4b\u95f4\u7684\u4e92\u901a\uff0c\u4e5f\u652f\u6301\u4e8c\u5c42\u7f51\u7edc\u63a5\u5165\u4e09\u5c42\u7f51\u7edc\u3002<\/p>\n<h3>\u7f51\u5173\u90e8\u7f72<\/h3>\n<p>\u5206\u4e3a\u96c6\u4e2d\u5f0f\u7f51\u5173\u548c\u5206\u5e03\u5f0f\u7f51\u5173\uff0c\u5982\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/06eeb399cbfd4ebfbbc5354bca98f88c.png\" alt=\"img\" \/><\/p>\n<ul>\n<li>\u96c6\u4e2d\u5f0f\uff1aL3\u7f51\u5173\u90e8\u7f72\u5728\u4e00\u53f0\u8bbe\u5907\u4e0a\uff0c\u6240\u6709\u8de8\u5b50\u7f51\u7684\u6d41\u91cf\u90fd\u901a\u8fc7\u8be5\u8bbe\u5907\u8f6c\u53d1\uff0c\u5b9e\u73b0\u96c6\u4e2d\u7ba1\u7406\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/ff9aa518b4ba4e7ea715d0937c1e1551.png\" alt=\"img\" \/><\/p>\n<ul>\n<li>\u5206\u5e03\u5f0f\uff1aVTEP\u8bbe\u5907\u540c\u65f6\u5145\u5f53L2\u548cL3\u7f51\u5173\u3002\u975e\u7f51\u5173\u8282\u70b9\u5bf9VXLAN\u96a7\u9053\u4e0d\u611f\u77e5\uff0c\u4ec5\u8f6c\u53d1VXLAN\u62a5\u6587\u3002<\/li>\n<\/ul>\n<h2>VXLAN \u96a7\u9053\u7684\u5efa\u7acb<\/h2>\n<p>VXLAN\u96a7\u9053\u7531\u4e00\u5bf9VTEP\uff08VXLAN Tunnel Endpoints\uff09\u5b9a\u4e49\u3002\u62a5\u6587\u5728VTEP\u8bbe\u5907\u4e0a\u5c01\u88c5\u540e\uff0c\u901a\u8fc7VXLAN\u96a7\u9053\u5728\u4e09\u5c42\u7f51\u7edc\u4e2d\u8fdb\u884c\u4f20\u8f93\u3002\u53ea\u8981VXLAN\u96a7\u9053\u4e24\u7aef\u7684VTEP\u5728\u4e09\u5c42\u7f51\u7edc\u4e2d\u662f\u53ef\u8fbe\u7684\uff0cVXLAN\u96a7\u9053\u5c31\u53ef\u4ee5\u6210\u529f\u5efa\u7acb\u3002<\/p>\n<p>VXLAN\u96a7\u9053\u7684\u521b\u5efa\u65b9\u5f0f\u5206\u4e3a\u4e24\u79cd\uff1a<\/p>\n<ul>\n<li>\u9759\u6001\u96a7\u9053\uff1a\u901a\u8fc7\u624b\u52a8\u914d\u7f6e\u672c\u7aef\u548c\u8fdc\u7aef\u7684VNI\u3001VTEP IP\u5730\u5740\u4ee5\u53ca\u5934\u7aef\u590d\u5236\u5217\u8868\uff08head-end peer-list\uff09\u6765\u5efa\u7acb\u96a7\u9053\u3002<\/li>\n<li>\u52a8\u6001\u96a7\u9053\uff1a\u901a\u8fc7BGP EVPN\u534f\u8bae\u52a8\u6001\u5efa\u7acbVXLAN\u96a7\u9053\u3002VTEP\u4e4b\u95f4\u5efa\u7acbBGP EVPN\u5bf9\u7b49\u4f53\uff0c\u5e76\u5229\u7528BGP EVPN\u8def\u7531\u4ea4\u6362VNI\u548cVTEP IP\u5730\u5740\u4fe1\u606f\uff0c\u5b9e\u73b0VXLAN\u96a7\u9053\u7684\u81ea\u52a8\u521b\u5efa\u3002<\/li>\n<\/ul>\n<h3>\u9759\u6001VXLAN\u96a7\u9053<\/h3>\n<p>\u9759\u6001VXLAN\u96a7\u9053\u7684\u5efa\u7acb\u5b8c\u5168\u4f9d\u8d56\u4e8e\u624b\u52a8\u914d\u7f6e\u3002\u53ea\u8981VXLAN\u96a7\u9053\u4e24\u7aef\u7684VTEP IP\u5730\u5740\u5728\u4e09\u5c42\u8def\u7531\u4e2d\u53ef\u8fbe\uff0c\u5c31\u53ef\u4ee5\u6210\u529f\u5efa\u7acbVXLAN\u96a7\u9053\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/422e656a09434db18ecaf38bc87aa17d.png\" alt=\"img\" \/><\/p>\n<h4><strong>VXLAN MAC\u5730\u5740\u8868\u9879<\/strong><\/h4>\n<p>VXLAN\u5728Overlay\u7f51\u7edc\u4e2d\u5b9e\u73b0\u4e8c\u5c42\u8f6c\u53d1\uff0c\u4f9d\u8d56\u4e8eMAC\u5730\u5740\u8868\u9879\u6765\u8fdb\u884c\u5355\u64ad\u6570\u636e\u5e27\u7684\u8f6c\u53d1\u3002VTEP\u8bbe\u5907\u4f1a\u5c06\u6570\u636e\u5e27\u7684\u6e90MAC\u5730\u5740\u6dfb\u52a0\u5230\u5bf9\u5e94BD\u7684MAC\u5730\u5740\u8868\u4e2d\uff0c\u5e76\u8bb0\u5f55\u51fa\u63a5\u53e3\u3002\u8fd9\u4e2a\u8868\u9879\u7528\u4e8e\u6307\u5bfc\u53d1\u5f80\u672cVTEP\u8fde\u63a5\u7ec8\u7aef\u7684\u6570\u636e\u5e27\u7684\u8f6c\u53d1\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/9f97840e70844474ab06b4d19431c950.png\" alt=\"img\" \/><\/p>\n<h4><strong>MAC\u5730\u5740\u52a8\u6001\u5b66\u4e60<\/strong><\/h4>\n<p>\u5728VXLAN\u7f51\u7edc\u4e2d\uff0c\u4e3a\u4e86\u8f6c\u53d1\u6765\u81ea\u8fdc\u7aefVTEP\u8bbe\u5907\u7684\u6570\u636e\u5e27\uff0c\u9700\u8981\u9996\u5148\u5b66\u4e60\u5230\u8fdc\u7aef\u8bbe\u5907\u7684MAC\u5730\u5740\u3002\u8fd9\u4e00\u8fc7\u7a0b\u4e0e\u4f20\u7edfMAC\u5730\u5740\u8868\u5f62\u6210\u8fc7\u7a0b\u7c7b\u4f3c\uff0c\u4e3b\u8981\u4f9d\u9760\u4e3b\u673a\u4e4b\u95f4\u7684\u62a5\u6587\u4ea4\u4e92\uff0c\u901a\u5e38\u901a\u8fc7ARP\u62a5\u6587\u6765\u5efa\u7acbMAC\u5730\u5740\u8868\u9879\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/f0fbe3bf85a24bf298d03a784bf6aa25.png\" alt=\"img\" \/><\/p>\n<p>\u4f8b\u5b50\uff1aPC1\u4e0ePC2\u7684\u901a\u4fe1\u8fc7\u7a0b<\/p>\n<ol>\n<li>\n<p>ARP\u8bf7\u6c42\uff1a<\/p>\n<p>PC1\u5411PC2\u53d1\u9001ARP\u8bf7\u6c42\u5e7f\u64ad\u5e27\uff0c\u8be2\u95eePC2\u7684MAC\u5730\u5740\u3002<\/p>\n<p>SW1\u6536\u5230\u8be5ARP\u8bf7\u6c42\u5e7f\u64ad\u5e27\uff0c\u5224\u65ad\u6d41\u91cf\u6240\u5c5e\u7684BD ID\u3001VXLAN\u96a7\u9053\u548cVNI\uff0c\u5b66\u4e60PC1\u7684MAC\u5730\u5740\uff0c\u5c06\u5176\u4e0eBD ID\u548c\u63a5\u6536\u63a5\u53e3\u7ed1\u5b9a\u3002<\/p>\n<p>SW1\u5c06ARP\u8bf7\u6c42\u5e27\u5c01\u88c5\u4e3aVXLAN\u62a5\u6587\uff0c\u5e76\u6309\u5934\u7aef\u590d\u5236\u5217\u8868\u8f6c\u53d1\u3002<\/p>\n<p>SW2\u89e3\u5c01\u88c5VXLAN\u62a5\u6587\uff0c\u5b66\u4e60PC1\u7684MAC\u5730\u5740\uff0c\u5e76\u5c06ARP\u8bf7\u6c42\u5e7f\u64ad\u5230\u672c\u5730\u5e7f\u64ad\u57df\uff0cPC2\u6536\u5230\u5e76\u5b66\u4e60PC1\u7684ARP\u4fe1\u606f\u3002<\/p>\n<p>PC2\u53d1\u9001\u5355\u64ad\u7684ARP\u54cd\u5e94\uff0cSW2\u5c06\u5176\u5c01\u88c5\u4e3aVXLAN\u62a5\u6587\uff0c\u53d1\u9001\u5230\u8fdc\u7aefVTEP\uff08SW1\uff09\u3002<\/p>\n<p>SW1\u89e3\u5c01\u88c5VXLAN\u62a5\u6587\uff0c\u8bb0\u5f55PC2\u7684MAC\u5730\u5740\u5230MAC\u5730\u5740\u8868\uff0c\u5e76\u5c06\u6570\u636e\u5e27\u8f6c\u53d1\u7ed9PC1\u3002<\/p>\n<\/li>\n<li>\n<p>\u7ed3\u679c\uff1a<\/p>\n<p>PC1\u548cPC2\u76f8\u4e92\u5b66\u4e60\u5230\u5bf9\u65b9\u7684ARP\u4fe1\u606f\uff0cSW1\u548cSW2\u4e5f\u5b66\u4e60\u5230\u76f8\u5e94\u7684MAC\u5730\u5740\u4fe1\u606f\u3002<\/p>\n<\/li>\n<\/ol>\n<p><strong>\u8de8\u5b50\u7f51\u5355\u64ad\u62a5\u6587\u8f6c\u53d1<\/strong><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/b1d91e4fed2a47179f02479069449b5a.png\" alt=\"img\" \/><\/p>\n<p>\u5f53PC1\u5e0c\u671b\u4e0ePC2\u901a\u4fe1\uff0c\u5e76\u53d1\u73b0\u5bf9\u7aef\u4e0d\u5728\u540c\u4e00\u5b50\u7f51\u65f6\uff0c\u62a5\u6587\u5c06\u53d1\u9001\u7ed9\u7f51\u5173\u8fdb\u884c\u8f6c\u53d1\u3002<\/p>\n<ol>\n<li>\n<p>\u62a5\u6587\u5c01\u88c5\uff1a<\/p>\n<ol>\n<li>PC1\u53d1\u9001\u7684\u6570\u636e\u5e27\u7684\u76ee\u7684MAC\u5730\u5740\u4e3a\u7f51\u5173MAC\uff0800AB-09FF-1111\uff09\u3002SW1\u6536\u5230\u8be5\u5e27\u540e\uff0c\u901a\u8fc7L2\u67e5\u8868\u53d1\u73b0\u51fa\u63a5\u53e3\u4e3a\u8fdc\u7aefVTEP\uff08L3\u7f51\u5173\uff09\uff0c\u5c06\u62a5\u6587\u5c01\u88c5\u4e3aVXLAN\u62a5\u6587\uff08VNI=1000\uff09\u540e\u53d1\u9001\u5230SW3\u3002<\/li>\n<\/ol>\n<\/li>\n<li>\n<p>L3\u8f6c\u53d1\uff1a<\/p>\n<ol>\n<li>SW3\u89e3\u5c01\u88c5VXLAN\u62a5\u6587\u540e\uff0c\u53d1\u73b0\u76ee\u7684MAC\u4e3a\u81ea\u8eab\u63a5\u53e3VBDIF10\u7684MAC\u5730\u5740\uff0c\u6267\u884cL3\u67e5\u8868\u8f6c\u53d1\u3002SW3\u67e5\u627e\u8def\u7531\u8868\uff0c\u627e\u5230\u76ee\u7684IP\uff08192.168.2.1\uff09\u4e0e\u63a5\u53e3VBDIF20\u5339\u914d\uff0c\u67e5\u627eARP\u8868\u9879\u786e\u5b9a\u76ee\u7684MAC\uff0c\u5e76\u4eceMAC\u5730\u5740\u8868\u786e\u5b9a\u51fa\u63a5\u53e3\u3002<\/li>\n<li>SW3\u5c06\u62a5\u6587\u5c01\u88c5\u4e3aVXLAN\u62a5\u6587\uff0c\u5e76\u53d1\u9001\u5230\u8fdc\u7aefVTEP\uff082.2.2.2\uff09\u3002<\/li>\n<\/ol>\n<\/li>\n<li>\n<p>\u6700\u7ec8\u8f6c\u53d1\uff1a<\/p>\n<ol>\n<li>SW2\u6536\u5230\u62a5\u6587\u540e\u89e3\u5c01\u88c5VXLAN\uff0c\u53d1\u73b0\u76ee\u7684MAC\u5730\u5740\u4e0d\u5728\u672c\u5730\u63a5\u53e3\u4e2d\uff0c\u6267\u884cL2\u67e5\u8868\uff0c\u6839\u636eMAC\u5730\u5740\u8868\u5c06\u62a5\u6587\u4ece\u672c\u5730\u63a5\u53e3\u8f6c\u53d1\u51fa\u53bb\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<h2>\u5b9e\u9a8c<\/h2>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/image-20260428100205874.png\" alt=\"image-20260428100205874\" \/><\/p>\n<blockquote>\n<p>\u5176\u4e2dVTEP\u4f7f\u7528Loopback\u63a5\u53e3\uff0c<strong>Loopback\u63a5\u53e3\uff08\u73af\u56de\u63a5\u53e3\uff09<\/strong> \u662f\u4e00\u79cd<strong>\u7eaf\u903b\u8f91\u7684\u3001\u865a\u62df\u7684\u7f51\u7edc\u63a5\u53e3<\/strong>\u3002\u5b83\u4e0d\u7531\u7269\u7406\u786c\u4ef6\uff08\u5982\u7f51\u5361\uff09\u652f\u6301\uff0c\u5b8c\u5168\u7531\u64cd\u4f5c\u7cfb\u7edf\u8f6f\u4ef6\u521b\u5efa\u548c\u7ef4\u62a4\u3002\u4e00\u65e6\u88ab\u521b\u5efa\u5e76\u914d\u7f6eIP\u5730\u5740\uff0c\u53ea\u8981\u8bbe\u5907\u5728\u8fd0\u884c\uff0c\u8be5\u63a5\u53e3\u53ca\u5176\u5730\u5740\u5c31\u59cb\u7ec8\u5904\u4e8e<strong>\u6d3b\u52a8\uff08Up\uff09\u72b6\u6001<\/strong>\uff0c\u4e0d\u4f1a\u56e0\u4e3a\u4efb\u4f55\u7269\u7406\u94fe\u8def\u6545\u969c\u800c\u5b95\u673a\u3002<\/p>\n<\/blockquote>\n<p><strong>\u4e3a\u4ec0\u4e48\u4f7f\u7528Loopback\u63a5\u53e3\uff1a<\/strong><\/p>\n<ul>\n<li><strong>VTEP\u5730\u5740<\/strong>\uff1a\u5728VXLAN\u7f51\u7edc\u4e2d\uff0c<strong>\u5f3a\u70c8\u5efa\u8bae\u5c06Loopback\u63a5\u53e3\u7684IP\u5730\u5740\u914d\u7f6e\u4e3aVTEP\u7684\u5730\u5740<\/strong>\u3002\u8fd9\u6837\uff0c\u65e0\u8bbaVTEP\u8bbe\u5907\u901a\u8fc7\u54ea\u6761\u7269\u7406\u94fe\u8def\u4e0e\u5bf9\u7aef\u901a\u4fe1\uff0c\u5176\u96a7\u9053\u6e90\u5730\u5740\u59cb\u7ec8\u4e0d\u53d8\uff0cVXLAN\u96a7\u9053\u4f1a\u975e\u5e38\u7a33\u5b9a\u3002<\/li>\n<li><strong>BGP EVPN\u5bf9\u7b49\u4f53<\/strong>\uff1a\u5efa\u7acbBGP EVPN\u90bb\u5c45\u5173\u7cfb\u65f6\uff0c\u901a\u5e38\u4f7f\u7528\u5bf9\u65b9\u7684<strong>Loopback\u5730\u5740<\/strong>\u4f5c\u4e3a\u5bf9\u7b49\u4f53\u5730\u5740\u3002\u8fd9\u786e\u4fdd\u4e86BGP\u63a7\u5236\u5e73\u9762\u4f1a\u8bdd\u7684\u7a33\u5b9a\u6027\uff0c\u5373\u4f7f\u8bbe\u5907\u95f4\u5b58\u5728\u591a\u6761\u7269\u7406\u94fe\u8def\uff08ECMP\uff09\uff0c\u4f1a\u8bdd\u4e5f\u4e0d\u4f1a\u56e0\u5355\u6761\u94fe\u8def\u6545\u969c\u800c\u4e2d\u65ad\u3002<\/li>\n<\/ul>\n<p><strong>SW01\u4ea4\u6362\u673a\u914d\u7f6e\u5982\u56fe<\/strong><\/p>\n<pre><code class=\"language-cmd\"># \u7b2c\u4e00\u90e8\u5206\uff1a\u521d\u59cb\u8bbe\u7f6e\n&lt;HUAWEI&gt;sys\n# \u8fdb\u5165\u7cfb\u7edf\u89c6\u56fe\uff0c\u4ece\u666e\u901a\u7528\u6237\u6a21\u5f0f\u8fdb\u5165\u7279\u6743\u914d\u7f6e\u6a21\u5f0f\nEnter system view, return user view with return command.\n\n[~HUAWEI]sysname SW01\n# \u5c06\u8bbe\u5907\u540d\u79f0\u6539\u4e3a&quot;SW01&quot;\uff0c\u4fbf\u4e8e\u7f51\u7edc\u7ba1\u7406\u65f6\u8bc6\u522b\u8bbe\u5907\n[*HUAWEI]commit\n# \u5728VRP8\u7cfb\u7edf\u4e2d\u63d0\u4ea4\u914d\u7f6e\u53d8\u66f4\uff0c\u4f7f\u8bbe\u5907\u540d\u4fee\u6539\u751f\u6548\n[~SW01]\n\n# \u7b2c\u4e8c\u90e8\u5206\uff1a\u914d\u7f6eLoopback\u63a5\u53e3\uff08VTEP\u5730\u5740\uff09\n[~SW01]int loopback 1\n# \u521b\u5efa\u5e76\u8fdb\u5165Loopback 1\u63a5\u53e3\u89c6\u56fe\u3002Loopback\u662f\u903b\u8f91\u63a5\u53e3\uff0c\u72b6\u6001\u6c38\u8fdcUP\n[*SW01-LoopBack1]ip address 1.1.1.1 32\n# \u4e3aLoopback 1\u914d\u7f6eIP\u5730\u57401.1.1.1\/32\uff0c\u8fd9\u4e2a\u5730\u5740\u5c06\u4f5c\u4e3aVXLAN\u96a7\u9053\u7aef\u70b9(VTEP)\u7684\u6807\u8bc6\n[*SW01-LoopBack1]quit\n# \u9000\u51faLoopback\u63a5\u53e3\u89c6\u56fe\uff0c\u8fd4\u56de\u7cfb\u7edf\u89c6\u56fe\n\n# \u7b2c\u4e09\u90e8\u5206\uff1a\u914d\u7f6e\u7269\u7406\u63a5\u53e3\uff08Underlay\u7f51\u7edc\uff09\n[*SW01]int GE 1\/0\/1\n# \u8fdb\u5165\u5343\u5146\u4ee5\u592a\u7f51\u63a5\u53e31\/0\/1\u7684\u914d\u7f6e\u89c6\u56fe\n[*SW01-GE1\/0\/1]undo portswitch\n# \u5c06\u63a5\u53e3\u4ece\u4e8c\u5c42\u4ea4\u6362\u6a21\u5f0f\u5207\u6362\u4e3a\u4e09\u5c42\u8def\u7531\u6a21\u5f0f\uff0c\u4f7f\u5176\u53ef\u4ee5\u914d\u7f6eIP\u5730\u5740\n[*SW01-GE1\/0\/1]ip address 10.0.0.1 30\n# \u4e3a\u63a5\u53e3\u914d\u7f6eIP\u5730\u574010.0.0.1\/30\uff0c\u7528\u4e8e\u4e0e\u5bf9\u7aef\u8bbe\u5907(SW02)\u5efa\u7acb\u5e95\u5c42IP\u8fde\u63a5\n[*SW01-GE1\/0\/1]quit\n# \u9000\u51fa\u63a5\u53e3\u89c6\u56fe\n\n# \u7b2c\u56db\u90e8\u5206\uff1a\u914d\u7f6e\u9759\u6001\u8def\u7531\uff08\u5efa\u7acbVTEP\u95f4\u901a\u4fe1\uff09\n[*SW01]ip route-static 2.2.2.2 32 10.0.0.2\n# \u6dfb\u52a0\u9759\u6001\u8def\u7531\uff1a\u53bb\u5f802.2.2.2\/32\u7684\u6570\u636e\u5305\uff0c\u4e0b\u4e00\u8df3\u53d1\u9001\u523010.0.0.2\n# \u76ee\u7684\uff1a\u8ba9SW01\u80fd\u8bbf\u95eeSW02\u7684Loopback\u5730\u5740(2.2.2.2)\uff0c\u8fd9\u662fVXLAN\u96a7\u9053\u5efa\u7acb\u7684\u524d\u63d0\n[*SW01]commit\n# \u63d0\u4ea4\u6240\u6709\u914d\u7f6e\u53d8\u66f4\n[~SW01]\n\n# \u7b2c\u4e94\u90e8\u5206\uff1a\u521b\u5efa\u6865\u63a5\u57df\uff08Bridge-Domain\uff09\n[~SW01]bridge-domain 1\n# \u521b\u5efa\u5e76\u8fdb\u5165\u6865\u63a5\u57df1\u7684\u914d\u7f6e\u89c6\u56fe\u3002\u6865\u63a5\u57df\u662fVXLAN\u7684\u4e8c\u5c42\u5e7f\u64ad\u57df\n[*SW01-bd1]vxlan vn\n# \u8f93\u5165\u4e0d\u5b8c\u6574\uff0c\u7cfb\u7edf\u4f1a\u63d0\u793a\u6b63\u786e\u7684\u547d\u4ee4\u683c\u5f0f\n[*SW01-bd1]vxlan vni 1\n# \u4e3a\u6865\u63a5\u57df1\u5206\u914dVXLAN\u7f51\u7edc\u6807\u8bc6\u7b26(VNI)\u4e3a1\n[*SW01-bd1]quit\n# \u9000\u51fa\u6865\u63a5\u57df\u89c6\u56fe\n\n# \u7b2c\u516d\u90e8\u5206\uff1a\u914d\u7f6eNVE\u63a5\u53e3\uff08VXLAN\u96a7\u9053\u63a5\u53e3\uff09\n[*SW01]int Nve 1\n# \u521b\u5efa\u5e76\u8fdb\u5165NVE 1\u63a5\u53e3\u89c6\u56fe\u3002NVE\u662fVXLAN\u96a7\u9053\u7684\u903b\u8f91\u7aef\u70b9\u63a5\u53e3\nInfo: Ensure that the IP addresses and MAC addresses of the NVE interfaces on Devices are the same, as they are dual-active gateways using M-LAG.\n# \u7cfb\u7edf\u63d0\u793a\uff1a\u5982\u679c\u4f7f\u7528M-LAG\u53cc\u6d3b\u7f51\u5173\uff0c\u9700\u786e\u4fddNVE\u63a5\u53e3\u7684IP\u548cMAC\u5730\u5740\u76f8\u540c\n[*SW01-Nve1]source 1.1.1.1\n# \u8bbe\u7f6eNVE\u63a5\u53e3\u7684\u6e90IP\u5730\u5740\u4e3a1.1.1.1\uff0c\u5373\u4f7f\u7528Loopback 1\u4f5c\u4e3aVTEP\u5730\u5740\n[*SW01-Nve1]vni 1 head-end peer-list 2.2.2.2\n# \u4e3aVNI 1\u914d\u7f6e\u5934\u7aef\u590d\u5236\u6a21\u5f0f\uff0c\u5e76\u6307\u5b9a\u5bf9\u7aefVTEP\u5730\u5740\u4e3a2.2.2.2\n# \u5934\u7aef\u590d\u5236\uff1a\u5f53\u6536\u5230\u5e7f\u64ad\/\u7ec4\u64ad\/\u672a\u77e5\u5355\u64ad\u65f6\uff0c\u4f1a\u590d\u5236\u62a5\u6587\u53d1\u9001\u5230peer-list\u4e2d\u7684\u6240\u6709\u5bf9\u7aef\n[*SW01-Nve1]commit\n# \u63d0\u4ea4NVE\u63a5\u53e3\u914d\u7f6e\n[~SW01]\n\n# \u7b2c\u4e03\u90e8\u5206\uff1a\u914d\u7f6e\u63a5\u5165\u4fa7\u5b50\u63a5\u53e3\uff08\u8fde\u63a5\u4e3b\u673a\uff09\n[~SW01]int GE 1\/0\/0.1 mode l2\n# \u521b\u5efa\u4e8c\u5c42\u5b50\u63a5\u53e3GE1\/0\/0.1\uff0c\u7528\u4e8e\u8fde\u63a5\u7ec8\u7aef\u8bbe\u5907\n[*SW01-GE1\/0\/0.1]commit\n# \u63d0\u4ea4\u5b50\u63a5\u53e3\u521b\u5efa\n[~SW01-GE1\/0\/0.1]encapsulation untag\n# \u914d\u7f6e\u5b50\u63a5\u53e3\u5c01\u88c5\u7c7b\u578b\u4e3auntag\uff08\u4e0d\u5e26VLAN\u6807\u7b7e\uff09\nWarning: To prevent unpredictable results, ensure that a main interface is not configured before you configure the untag or default mode for its sub-interface.\n# \u8b66\u544a\uff1a\u4e3a\u4e86\u907f\u514d\u4e0d\u53ef\u9884\u77e5\u7684\u7ed3\u679c\uff0c\u914d\u7f6e\u5b50\u63a5\u53e3untag\/default\u6a21\u5f0f\u524d\uff0c\u786e\u4fdd\u4e3b\u63a5\u53e3\u6ca1\u6709\u914d\u7f6e\n[*SW01-GE1\/0\/0.1]bridge-domain 1\n# \u5c06\u5b50\u63a5\u53e3\u7ed1\u5b9a\u5230\u6865\u63a5\u57df1\uff0c\u4f7f\u4ece\u6b64\u63a5\u53e3\u8fdb\u5165\u7684\u6d41\u91cf\u8fdb\u5165VNI 1\u5bf9\u5e94\u7684VXLAN\u7f51\u7edc\n[*SW01-GE1\/0\/0.1]commit\n# \u63d0\u4ea4\u5b50\u63a5\u53e3\u914d\u7f6e<\/code><\/pre>\n<blockquote>\n<p>SW02\u6839\u636eSW01\u8fdb\u884c\u76f8\u5e94\u914d\u7f6e<\/p>\n<\/blockquote>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/image-20260428111902699.png\" alt=\"image-20260428111902699\" \/><\/p>\n<p>\u5728PC1\u4e0a\u8fdb\u884cping PC2\u7684\u64cd\u4f5c\uff0c\u5728\u4e0a\u56fe\u4f4d\u7f6e\u8fdb\u884c\u6293\u5305\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/image-20260428112024803.png\" alt=\"image-20260428112024803\" \/><\/p>\n<p>\u53ef\u4ee5\u53d1\u73b0\u9996\u5148\u53cc\u65b9\u53d1\u9001\u4e86ARP\u534f\u8bae\u7528\u6765\u83b7\u53d6MAC\u5730\u5740\u3002\u67e5\u770bping\u6570\u636e\u5305\uff0c\u4e5f\u8fdb\u884c\u4e86VXLAN\u7684\u5c01\u88c5\u3002\u53ef\u4ee5\u770b\u9053VNI\u6807\u8bc6\u4e3a1\uff0c\u4e0a\u5c42\u5c01\u88c5\u4e86IP\u6570\u636e\u5305\uff0c\u5176\u4e2dIP\u5730\u5740\u4e3aLoopback\u63a5\u53e3\u7684\u7f51\u7edc\u5730\u5740\uff0c\u5728SW\u4e2d\u901a\u8fc7\u8def\u7531\u627e\u5230SW2<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.danielw.top\/image-20260428112526138.png\" alt=\"image-20260428112526138\" \/><\/p>\n<blockquote>\n<p>\u6587\u7ae0\u53c2\u8003\u8d44\u6599\uff1a<a href=\"https:\/\/blog.csdn.net\/weixin_42175752\/article\/details\/140741760\uff0c\u5982\u6709\u4fb5\u6743\u8bf7\u8054\u7cfb\" target=\"_blank\"  rel=\"nofollow\" >https:\/\/blog.csdn.net\/weixin_42175752\/article\/details\/140741760\uff0c\u5982\u6709\u4fb5\u6743\u8bf7\u8054\u7cfb<\/a><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>VxLan\u6280\u672f VXLAN \u5b9e\u8d28\u4e0a\u662f\u4e00\u79cdVPN\uff08\u865a\u62df\u4e13\u7528\u7f51\u7edc\uff09\u6280\u672f\uff0c\u80fd\u591f\u5728\u4efb\u610f\u8def\u7531\u53ef\u8fbe\u7684\u7269\u7406\u7f51\u7edc\uff08Underlay\u7f51\u7edc\uff09\u4e0a\u53e0\u52a0\u4e8c\u5c42 &#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-375","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"http:\/\/danielw.top\/index.php?rest_route=\/wp\/v2\/posts\/375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/danielw.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/danielw.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/danielw.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/danielw.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=375"}],"version-history":[{"count":2,"href":"http:\/\/danielw.top\/index.php?rest_route=\/wp\/v2\/posts\/375\/revisions"}],"predecessor-version":[{"id":377,"href":"http:\/\/danielw.top\/index.php?rest_route=\/wp\/v2\/posts\/375\/revisions\/377"}],"wp:attachment":[{"href":"http:\/\/danielw.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/danielw.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=375"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/danielw.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}