{"id":6538,"date":"2026-08-11T15:36:38","date_gmt":"2026-08-11T07:36:38","guid":{"rendered":"https:\/\/www.killtest.hk\/?p=6538"},"modified":"2026-08-11T15:36:38","modified_gmt":"2026-08-11T07:36:38","slug":"mpls-vpn%e8%b7%a8%e5%9f%9f%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/www.killtest.hk\/index.php\/killtest\/mpls-vpn%e8%b7%a8%e5%9f%9f%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88\/","title":{"rendered":"MPLS VPN\u8de8\u57df\u89e3\u6c7a\u65b9\u6848"},"content":{"rendered":"\n

\u524d\u8a00
\u524d\u9762\u4ecb\u7d39\u4e86MPLS VPN\u7684\u57fa\u672c\u539f\u7406\u8207\u57fa\u672c\u914d\u7f6e\uff0c\u672c\u7bc0\u4ecb\u7d39MPLS VPN\u00a0\u7684\u9ad8\u968e\u7528\u6cd5\uff0c\u8de8\u57df\uff0c\u5047\u8a2d\u6709\u4e00\u5bb6\u4f01\u696d\u900f\u904eMPLS VPN\u7684\u65b9\u5f0f\u4f86\u5be6\u73fe\u4e0d\u540c\u7684\u57ce\u5e02\u7684\u4e92\u76f8\u8a2a\u554f,\u4e3b\u8981\u6709\u56db\u7a2e\u65b9\u6848\uff0cOption A\u65b9\u6848\uff0cOption B\u65b9\u6848\uff0cOption C1\u65b9\u6848\uff0cOption C2\u65b9\u6848
\u4e00\u3001Option A\u65b9\u6848\uff08VRF-to-VRF\u80cc\u5c0d\u80cc\u65b9\u5f0f\uff09
<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n


\u57fa\u672c\u539f\u7406\uff1a
ASBR\u9593\u900f\u904e\u666e\u901aEBGP\u9023\u63a5\uff1a\u5728\u5169\u500b\u81ea\u6cbb\u7cfb\u7d71\u908a\u754c\u8def\u7531\u5668\uff08ASBR\uff09\u4e4b\u9593\u5efa\u7acb\u6a19\u6e96\u7684IPv4 EBGP\u9130\u5c45\u95dc\u4fc2\uff0c\u4e0d\u904b\u884cMPLSVRF
\u5be6\u4f8b\u7368\u7acb\u914d\u7f6e\uff1a\u6bcf\u500bVPN\u5728ASBR\u4e0a\u5275\u5efa\u7368\u7acb\u7684VRF\u5be6\u4f8b\uff0cAS\u9593\u900f\u904eVRF-to-VRF\u65b9\u5f0f\u5c0d\u63a5
\u8def\u7531\u8f49\u63db\u6a5f\u5236\uff1aASBR\u5c07MP-BGP\u7522\u751f\u7684VPNv4\u8def\u7531\u8f49\u63db\u70ba\u666e\u901aIPv4\u8def\u7531\uff0c\u900f\u904eEBGP\u50b3\u905e\u7d66\u5c0d\u7aefASBR
\u8a73\u7d30\u5de5\u4f5c\u6a5f\u5236\uff1a
\u8def\u7531\u767c\u5e03\uff1a
PE1\u5c07VPN\u8def\u7531\u900f\u904eMP-BGP\u767c\u4f48\u7d66ASBR1
ASBR1\u5c07VPNv4\u8def\u7531\u8f49\u63db\u70baIPv4\u8def\u7531\uff0c\u900f\u904eEBGP\u767c\u4f48\u7d66ASBR2
ASBR2\u5c07IPv4\u8def\u7531\u91cd\u65b0\u8f49\u63db\u70baVPNv4\u8def\u7531\uff0c\u4e26\u900f\u904eMP-BGP\u767c\u4f48\u7d66PE2<\/p>\n\n\n\n

\u8cc7\u6599\u8f49\u767c\uff1a
\u7576\u8cc7\u6599\u5305\u5230\u9054ASBR1\u6642\uff0c\u525d\u96e2MPLS\u6a19\u7c64\uff0c\u8f49\u63db\u70ba\u666e\u901aIP\u5305ASBR1\u6839\u64daVRF\u8868\u9805\u67e5\u627e\u8def\u7531\uff0c\u5c07IP\u5305\u8f49\u9001\u81f3ASBR2ASBR2\u6839\u64daVRF\u8868\u9805\u91cd\u65b0\u5c01\u88ddMPLS\u6a19\u7c64\uff0c\u8f49\u9001PE2
\u7279\u9ede\uff1a
\u2705 \u914d\u7f6e\u7c21\u55ae\uff0c\u7121\u9700\u7279\u6b8aMPLS\u914d\u7f6e
\u274c \u64f4\u5145\u6027\u5dee\uff0c\u6bcf\u500bVPN\u9700\u8981\u7368\u7acb\u9023\u7d50\u548cVRF\u5be6\u4f8b
\u274c ASBR\u9700\u8981\u8655\u7406\u6240\u6709VPN\u8def\u7531\uff0c\u8ca0\u8f09\u9ad8\u9069\u7528\u5834\u666f\uff1a\u5c0f\u898f\u6a21VPN\u7db2\u8def\uff08\u5c11\u91cfVPN\uff09<\/p>\n\n\n\n

\u4e8c\u3001Option B\u65b9\u6848\uff08EBGP VPNv4\u55ae\u8df3\u65b9\u5f0f\uff09<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n


\u57fa\u672c\u539f\u5247\uff1a
ASBR\u9593\u904b\u4f5cMP-EBGP\uff1a
ASBR\u4e4b\u9593\u5efa\u7acb\u652f\u63f4VPNv4\u4f4d\u5740\u65cf\u7684EBGP\u9130\u5c45\u95dc\u4fc2
\u8def\u7531\u76f4\u63a5\u50b3\u905e\uff1aVPN\u8def\u7531\u4ee5VPNv4\u683c\u5f0f\u76f4\u63a5\u5728ASBR\u9593\u50b3\u905e\uff0c\u7dad\u6301MPLS\u6a19\u7c64
\u6a19\u7c64\u91cd\u65b0\u5206\u914d\uff1aASBR\u91cd\u65b0\u5206\u914d\u79c1\u4eba\u7db2\u8def\u6a19\u7c64\uff0c\u516c\u7db2\u6a19\u7c64\u7531LDP\u5206\u914d
\u8a73\u7d30\u5de5\u4f5c\u6a5f\u5236\uff1a
\u8def\u7531\u767c\u5e03\uff1aPE1\u5c07VPNv4\u8def\u7531\uff08\u5305\u542bRD\u3001RT\u3001\u79c1\u4eba\u7db2\u8def\u6a19\u7c64\uff09\u900f\u904eMP-BGP\u767c\u5e03\u7d66ASBR1ASBR1\u900f\u904eMP-EBGP\u5c07VP Nv4\u8def\u7531\uff08\u91cd\u65b0\u5206\u914d\u79c1\u4eba\u7db2\u8def\u6a19\u7c64\uff09\u767c\u4f48\u7d66ASBR2ASBR2\u900f\u904eMP-BGP\u5c07VPNv4\u8def\u7531\u767c\u4f48\u7d66PE2
\u8cc7\u6599\u8f49\u9001\uff1a
PE1\u50b3\u9001\u7684\u8cc7\u6599\u5305\u5305\u542b\u5169\u5c64\u6a19\u7c64\uff1a\u5916\u5c64\u516c\u7db2\u6a19\u7c64\uff08LDP\u5206\u914d\uff09\uff0c\u5167\u5c64\u79c1\u4eba\u7db2\u8def\u6a19\u7c64\uff08PE1\u5206\u914d\uff09 ASBR1\u6536\u5230\u8cc7\u6599\u5305\u5f8c\uff0c\u4fdd\u7559\u5167\u5c64\u6a19\u7c64\uff0c\u66ff\u63db\u5916\u5c64\u6a19\u7c64\u70baASBR2\u5206\u914d\u7684\u516c\u7db2\u6a19\u7c64ASBR2\u6536\u5230\u8cc7\u6599\u5305\u5f8c\uff0c\u525d\u96e2\u5916\u5c64\u6a19\u7c64\uff0c\u5c07\u5167\u5c64\u6a19\u7c64\u66ff\u63db\u70baPE2\u5206\u914d\u7684\u79c1\u7db2\u6a19\u7c64PE2\u6839\u64da\u5167\u5c64\u6a19\u7c64\u8b58\u5225VPN\u4e26\u8f49\u767c\u7d66CE
\u7279\u9ede\uff1a
\u2705\u652f\u63f4\u6240\u6709VPN\u5171\u4eab\u55ae\u4e00\u93c8\u8def<\/p>\n\n\n\n

\u2705 \u64f4\u5145\u6027\u512a\u65bcOption A
\u274c ASBR\u9700\u8981\u7dad\u8b77\u6240\u6709VPNv4\u8def\u7531\uff0c\u8cc7\u6e90\u4f54\u7528\u5927
\u274c \u6a19\u7c64\u7ba1\u7406\u8907\u96dc\u9069\u7528\u5834\u666f\uff1a\u4e2d\u7b49\u898f\u6a21VPN\u7db2\u8def\uff0810-100\u500bVPN\uff09
\u4e09\u3001Option C\u65b9\u6848\uff08Multi-hop EBGP VPNv4\u591a\u8df3\u65b9\u5f0f\uff09
<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n


\u57fa\u672c\u539f\u5247\uff1a
PE\u9593\u76f4\u63a5\u5efa\u7acbMP-EBGP\uff1a<\/p>\n\n\n\n

\u4e0d\u540cAS\u7684PE\u8def\u7531\u5668\u76f4\u63a5\u5efa\u7acb\u591a\u8df3\u7684MP-EBGP\u9130\u5c45\u95dc\u4fc2<\/p>\n\n\n\n

\u8def\u7531\u53cd\u5c04\u5668\u67b6\u69cb\uff1a\u900f\u904e\u8def\u7531\u53cd\u5c04\u5668\uff08RR\uff09\u5be6\u73fe\u8de8\u57df\u8def\u7531\u50b3\u905e
\u6a19\u7c64\u5206\u914d\u6700\u4f73\u5316\uff1a\u4f7f\u7528BGP\u6a19\u7c64\u5206\u914d\u6a5f\u5236\uff0c\u907f\u514dLDPEB1 AS\u7684\u8def\u7531\u53cd\u5c04\u5668RR2RR2\u5c07\u8def\u7531\u767c\u4f48\u7d66PE2ASBR\u53ea\u8ca0\u8cac\u8f49\u9001BGP\u66f4\u65b0\u5831\u6587\uff0c\u4e0d\u8655\u7406VPN<\/p>\n\n\n\n

\u8def\u7531\u8cc7\u6599<\/a>\u8f49\u9001\uff1a<\/p>\n\n\n\n

PE1\u767c\u9001\u7684\u8cc7\u6599\u5305\u5305\u542b\u5169\u5c64\u6a19\u7c64\uff1a\u5916\u5c64\u6a19\u7c64\uff08\u7531BGP\u5206\u914d\uff0c\u6307\u5411PE2\uff09\uff0c\u5167\u5c64\u79c1\u7db2\u6a19\u7c64ASBR1\u548cASBR2\u53ea\u6839\u64da\u5916\u5c64\u6a19\u7c64\u9032\u884c\u6a19\u7c64\u4ea4\u63db\uff0c\u4e0d\u89e3\u6790\u8f49\u63a5\u5167\u5c64\u6a19\u7c64Label\uff09\u53d6\u4ee3LDP\u6a19\u7c64PE\u5206\u914dBGP\u6a19\u7c64\u7d66\u5c0d\u7aefPE\uff0c\u5f62\u6210\u7aef\u5c0d\u7aef\u7684MPLS\u96a7\u9053
\u7279\u6027\uff1a
\u2705 \u64f4\u5c55\u6027\u6700\u597d\uff0c\u652f\u63f4\u5927\u898f\u6a21VPN\u90e8\u7f72
\u2705 ASBR\u8ca0\u8f09\u6700\u4f4e\uff0c\u53ea\u505a\u6a19\u7c64\u4ea4\u63db
\u2705 \u7aef\u5230\u7aef\u6a19\u7c64\u4ea4\u63db\uff0c\u6548\u80fd\u6700\u512a
\u274c \u914d\u7f6e\u6700\u8907\u96dc\uff0c\u9700\u8981AS\u9593\u5354\u8abf
\u274c0Opti C\u8a2d\u5b9a
\u8907\u96dc\u5ea6\u2b50\u2b50\u2b50\u2b50\u2b50\u2b50\u2b50\u2b50\u2b50\u2b50\u00a0
\u64f4\u5c55\u6027\u00a0\u2b50\u2b50\u2b50\u2b50\u2b50\u2b50\u2b50\u2b50\u2b50
ASBR\u00a0\u9ad8\uff08\u6bcfVPN\u55ae\u7368\u8655\u7406\uff09
\u4e2d\uff08\u7dad\u8b77\u6240\u6709VPN\u4f7f\u7528\u7387\u9700\u7368\u7acb\u93c8\u8def\u55ae\u93c8\u8def\u627f\u8f09\u6240\u6709VPN\u55ae\u93c8\u8def\u627f\u8f09\u6240\u6709VPN\u9069\u7528\u898f\u6a21\u5c0f\u898f\u6a21\uff08<10\u500bVPN\uff09\u4e2d\u898f\u6a21\uff0810-100\u500bVPN\uff09
\u5927\u898f\u6a21\uff08>100\u500bVPN\uff09\u904b\u7dad\u96e3\u5ea6\u00a0\u7c21\u55ae\u4e2d\u7b49\u8907\u96dc
PS \u00a0\uff1aoption C1 \u8207 C2 \u7684\u5340\u5225\u5728\u65bc\u6a19\u7c64\u5206\u914d\u65b9\u5f0f\u00a0\u6838\u5fc3\u6a5f\u5236\uff1a\u5728Option C1\u57fa\u790e\u4e0a\u6e1b\u5c11\u4e86ldp\u6a19\u7c64\u5c64\u7d1a\uff0c\u512a\u5316\u8def\u7531\u50b3\u905e
RR\u90e8\u7f72\uff1a\u5c08\u9580\u7684\u8def\u7531\u5668\u4e0a\u90e8\u7f72RR\uff0c\u53cd\u5c04VPNv4\u8def\u7531\u8def\u7531\u512a\u5316\uff1aPE\u8a2d\u5099\u4e4b\u9593\u5efa\u7acbEBGP\u9023\u63a5\uff0c\u6e1b\u5c11BGP\u5c0d\u7b49\u9ad4\u6578\u91cf\u64f4\u5c55\u6027\uff1a\u652f\u63f4\u5927\u898f\u6a21\u8f49\u9001\u9023\u63a5\uff0c\u8cc7\u6599\u4f86\u6e90\u5206\u96e2\uff09
\u53c3\u8003\u9023\u7d50https:\/\/support.huawei.com\/enterprise\/zh\/doc\/EDOC1100130778\/b313dfd4https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/switches\/l an\/catalyst9500\/software\/release\/17-1\/configuration_guide\/mpls\/b_171_mpls_9500_cg\/configuring_mpls_inter_AS_Options.html<\/p>\n","protected":false},"excerpt":{"rendered":"

\u524d\u8a00\u524d\u9762\u4ecb\u7d39\u4e86MPLS VPN\u7684\u57fa\u672c\u539f\u7406\u8207\u57fa\u672c\u914d\u7f6e\uff0c\u672c\u7bc0\u4ecb\u7d39MPLS VPN\u00a0\u7684\u9ad8\u968e\u7528\u6cd5\uff0c\u8de8\u57df\uff0c\u5047\u8a2d\u6709\u4e00\u5bb6\u4f01\u696d […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6538","post","type-post","status-publish","format-standard","hentry","category-killtest"],"_links":{"self":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts\/6538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/comments?post=6538"}],"version-history":[{"count":1,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts\/6538\/revisions"}],"predecessor-version":[{"id":6542,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts\/6538\/revisions\/6542"}],"wp:attachment":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/media?parent=6538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/categories?post=6538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/tags?post=6538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}