{"id":3408,"date":"2021-11-21T21:40:44","date_gmt":"2021-11-22T05:40:44","guid":{"rendered":"https:\/\/www.xh86.me\/?p=3408"},"modified":"2021-11-21T22:03:47","modified_gmt":"2021-11-22T06:03:47","slug":"%e9%aa%a8%e5%b9%b2%e7%bd%91%e8%b7%a8%e5%9f%9f%e6%8a%80%e6%9c%afopition-a%e5%92%8coption-b%e5%88%b0%e5%ba%95%e7%94%a8%e5%93%aa%e4%b8%aa%e5%a5%bd%e5%91%a2%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.xh86.me\/?p=3408","title":{"rendered":"\u9aa8\u5e72\u7f51\u8de8\u57df\u6280\u672fOpition-A\u548cOption-B\u5230\u5e95\u7528\u54ea\u4e2a\u597d\u5462\uff1f"},"content":{"rendered":"
\n
<\/section>\n

\u9aa8\u5e72\u7f51\u7684\u8de8\u57df\u6280\u672f\u6709Option-A\u3001Option-B\u3001Option-C\u4e09\u79cd\u3002\u800c\u5728\u5176\u4e2d\u53c8\u6709Option-A\u3001Option-B\u8f83\u4e3a\u5e38\u7528\u3002\u5f53\u4f60\u7ffb\u9605\u6559\u6750\u7684\u65f6\u5019\uff0c\u5374\u6beb\u65e0\u4f8b\u5916\u7684\u544a\u8bc9\u4f60\uff1aOption-A\u4e0d\u9002\u5408\u7528\u4e8eVRF\u6570\u91cf\u8fc7\u591a\u7684\u573a\u666f\uff0c\u5f53VRF\u6570\u91cf\u591a\u65f6\uff0c\u5efa\u8bae\u9996\u9009Option-B\u3002<\/span><\/strong><\/p>\n

\n

\u8fd9\u53e5\u8bdd\u5bf9\u4e0d\u5bf9\u5462\uff1f<\/strong><\/span><\/p>\n

\u8fd9\u53e5\u8bdd\uff0c\u6211\u89c9\u5f97\u5176\u5b9e\u662f\u4e0d\u5bf9\u7684\u3002\u5982\u679c\u662f\u80fd\u6df1\u5165\u4e86\u89e3OptionA\u3001OptionB\u7684\u539f\u7406\u548c\u6548\u679c\uff0c\u518d\u7ed3\u5408\u5b9e\u9645\u5e94\u7528\u7684\u8bdd\uff0c\u5c31\u4e0d\u4f1a\u968f\u4fbf\u8bf4\u51fa\u201c\u9996\u9009Option-B\u201d\u8fd9\u6837\u7684\u8bdd\u4e86\u3002<\/span><\/p>\n

 <\/p>\n

\u90a3\u5230\u5e95\u4ec0\u4e48\u573a\u5408\u9002\u5408\u7528Option-A\u3001\u4ec0\u4e48\u573a\u5408\u9002\u5408\u7528Option-B\u5462\uff1f\u5176\u5b9e\u8fd9\u4e2a\u548cVRF\u6570\u91cf\u771f\u6ca1\u5173\u7cfb\uff0c\u5012\u662f\u548c\u8981\u5bf9\u63a5\u7684\u4e24\u4e2a\u9aa8\u5e72\u7f51\u7684VRF\u89c4\u5212\u6709\u5173\u7cfb\u3002<\/strong><\/span><\/p>\n

\n

\n

Option-A<\/strong><\/p>\n<\/section>\n

<\/div><\/section>\n

\u54b1\u5148\u6765\u770b\u770bOption-A\u7684\u5b9e\u73b0\u65b9\u5f0f\uff1a<\/span><\/p>\n

 <\/p>\n

Option-A\u7684\u201c\u5b66\u540d\u201d\u53eb\u201c\u80cc\u9760\u80cc\u8fde\u63a5\u201d\u6216\u201cVRF-to-VRF\u201d\u3002\u5176\u5b9e\u73b0\u539f\u7406\u662f\uff1aASBR\u5bf9\u7b49\u4f53\u95f4\uff0c\u901a\u8fc7\u4f7f\u7528\u591a\u4e2a\u4e09\u5c42\u94fe\u8def\u6216\u5212\u5206\u5b50\u63a5\u53e3\u65b9\u5f0f\uff0c\u6bcf\u4e2a\u4e09\u5c42\u63a5\u53e3\u6216\u5b50\u63a5\u53e3\u5206\u522b\u7ed1\u5b9a\u4e00\u4e2aVRF\u3002\u7136\u540e\uff0c\u5728\u6bcf\u4e2aVRF\u4e0b\u5206\u522b\u5efa\u7acb\u4e00\u7ec4eBGP\u90bb\u5c45\u3002<\/span><\/p>\n

<\/div><\/p>\n

<\/div><\/p>\n

\u8981\u5b9e\u73b0Option-A\u6709\u5982\u4e0b\u5173\u952e\u70b9\u9700\u8981\u8bbe\u8ba1\uff1a<\/span><\/strong><\/p>\n

 <\/p>\n

1\u3001\u6309\u7167\u9700\u8981\u8de8\u57df\u7684VRF\u6570\u91cf\uff0c\u5728ASBR\u4e4b\u95f4\u51c6\u5907\u591a\u6761\u7269\u7406\u94fe\u8def\u3002\u5982ASBR\u4e4b\u95f4\u94fe\u8def\u53ea\u6709\u4e00\u6761\u65f6\uff0c\u5219\u53ef\u4ee5\u5212\u5206\u5b50\u63a5\u53e3\uff1b\u82e5ASBR\u662f\u4e09\u5c42\u4ea4\u6362\u673a\u62c5\u4efb\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528Trunk\u63a5\u53e3\u548cVLANIF\u5bf9\u63a5\u3002<\/span><\/p>\n

 <\/p>\n

2\u3001\u6bcf\u4e2a\u4e09\u5c42\u63a5\u53e3\u7ed1\u5b9a\u4e00\u4e2aVRF\uff08\u82e5\u516c\u7f51\u8def\u7531\u8de8\u57df\uff0c\u5219\u516c\u7f51\u8de8\u57df\u7684\u4e09\u5c42\u63a5\u53e3\u4e0d\u7ed1VRF\uff09\uff1b<\/span><\/p>\n

3\u3001\u5728\u6bcf\u4e2aIPv4 VRF\u7684\u5730\u5740\u65cf\u4e0b\uff0c\u5efa\u7acbeBGP\u90bb\u5c45\u5373\u53ef\u5b9e\u73b0\u8de8\u57df\u3002\u6709\u591a\u5c11\u4e2aVRF\u9700\u8981\u8de8\u57df\uff0c\u5c31\u9700\u8981\u5efa\u7acb\u51e0\u7ec4eBGP\u90bb\u5c45\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span><\/p>\n

<\/div><\/p>\n

\u6839\u636eOption-A\u7684\u5b9e\u73b0\u539f\u7406\uff0c\u5176\u5b9e\u6211\u4eec\u4e5f\u53ef\u4ee5\u5f97\u5230\u8fd9\u6837\u4e00\u4e2a\u7ed3\u8bba\uff1a<\/span><\/p>\n

\u56e0\u4e3aAS#1-ASBR\u662f\u7528address-family ipv4 vrf XX\u4e0e\u5bf9\u7aef\u5efa\u7acbeBGP\u90bb\u5c45\u7684\uff0c\u800cPE-CE\u4e4b\u95f4\u4f7f\u7528eBGP\u4f5c\u4e3a\u8def\u7531\u534f\u8bae\u65f6\uff0c\u4e5f\u662f\u5728address-family ipv4 vrf XX\u4e0b\u5efa\u7acbeBGP\u90bb\u5c45\u3002\u6240\u4ee5\uff0c\u5f53AS#1-ASBR\u548cAS#2-ASBR\u4f7f\u7528Option-A\u8de8\u57df\u65f6\uff0c\u5b9e\u9645\u4e0a\u662fAS#1-ASBR\u628aAS#2-ASBR\u5f53\u6210\u81ea\u5df1CE\u7684\uff0c\u540c\u6837\uff0cAS#2-ASBR\u4e5f\u628aAS#1-ASBR\u5f53\u6210\u81ea\u5df1\u7684CE<\/strong>\u3002<\/span><\/p>\n

\n

<\/div><\/p>\n

\u90a3\u65e2\u7136\u662fASBR\u90fd\u628a\u5bf9\u65b9\u5f53CE\u770b\uff0c\u6240\u4ee5\uff0cOption-A\u7684ASBR\u4e4b\u95f4\u7684\u8def\u7531\uff0c\u5c31\u662f\u7eaf\u7cb9\u7684IPv4\/IPv6\u8def\u7531\u4e86\u3002\u4e0d\u88ab\u4efb\u4f55\u6807\u7b7e\u5c01\u88c5\u3002\u800cASBR\u4e4b\u95f4\u4f20\u9012\u7684\u6570\u636e\u5305\uff0c\u4e5f\u662f\u7eafIPv4\/IPv6\u6570\u636e\u5305\uff0c\u53ea\u5c01\u88c5\u4e86IP\u5305\u5934\uff0c\u548c\u666e\u901a\u7f51\u7edc\u7684\u6570\u636e\u5305\u65e0\u5f02\u3002<\/span><\/p>\n

<\/div><\/p>\n

\u901a\u8fc7\u4e0a\u9762\u7684\u56fe\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u3002<\/span><\/p>\n

\u5728Option-A\u8de8\u57df\u7684\u60c5\u51b5\u4e0b\uff0c\u53ea\u6709\u5728AS\u5185\u90e8\u7684MPLS VPN\u7f51\u7edc\u57df\u5185\uff0c\u6570\u636e\u5305\u624d\u4f1a\u6709\u6807\u7b7e\u7684\u5c01\u88c5\uff0c\u5230ASBR\u4e0a\uff0c\u6807\u7b7e\u5c31\u88ab\u5f39\u51fa\u4e86\uff0c\u53ea\u5c01\u88c5\u4e86IPv4\u5305\u5934\u3002<\/span><\/p>\n

 <\/p>\n

\u6362\u53e5\u8bdd\u8bf4\uff0cLSP\uff08Label Swap Path\uff1a\u6807\u7b7e\u4ea4\u6362\u8def\u5f84\uff09\u5728ASBR\u4e4b\u95f4\u5c31\u65ad\u4e86\uff0c\u53ea\u6709\u6570\u636e\u5305\u8fdb\u5165\u5bf9\u65b9ASBR\u4ee5\u540e\u624d\u4f1a\u91cd\u65b0\u5c01\u88c5\u6807\u7b7e\u5934\uff0c\u91cd\u65b0\u5efa\u7acbLSP\u3002<\/span><\/p>\n

<\/div><\/p>\n

\u6b63\u662f\u56e0\u4e3aOption-A\u8de8\u57df\u65f6\uff0cASBR\u4e4b\u95f4\u4f20\u9012\u7684\u662f\u7eafIP\u8def\u7531\uff0c\u5c01\u88c5\u7684\u4e5f\u662f\u7eafIP\u5305\u5934\u3002\u6240\u4ee5\uff0cOption-A\u7684\u517c\u5bb9\u6027\u6bd4\u8f83\u597d\u3002\u5982\u679c\u6709\u5728ASBR\u4e4b\u95f4\u4e32\u63a5\u5165\u900f\u660e\u9632\u706b\u5899\u7684\u9700\u6c42\uff0c\u5219\u6b64\u65f6\u8de8\u57df\u65b9\u5f0f\u4f7f\u7528Option-A\u65f6\uff0c\u662f\u4e0d\u7528\u62c5\u5fc3\u9632\u706b\u5899\u65e0\u6cd5\u8bc6\u522bASBR\u4e4b\u95f4\u4f20\u9012\u6570\u636e\u5305\u7684\u7279\u5f81\u503c\u7684\uff08\u4f8b\u5982\u4e94\u5143\u7ec4\u4fe1\u606f\uff09<\/span><\/p>\n

 <\/p>\n

\u53e6\u5916\uff0c\u4f7f\u7528Option-A\u8de8\u57df\u65f6\uff0c\u4e5f\u4e0d\u7528\u62c5\u5fc3\u53cc\u65b9\u9aa8\u5e72\u7f51\u7684VRF\u672a\u7ecf\u7edf\u4e00\u89c4\u5212\uff0cImport RT\u548cExport RT\u5b58\u5728\u4e0d\u5bf9\u5e94\u7684\u60c5\u51b5\u3002<\/span><\/p>\n

<\/div><\/p>\n

\n

\n

Option-B<\/strong><\/p>\n<\/section>\n

<\/section>\n
<\/div><\/section>\n

\u518d\u6765\u770b\u4e00\u4e0bOption-B\u8de8\u57df\u65b9\u5f0f\u3002<\/span><\/p>\n

 <\/p>\n

Option-B\u7684\u201c\u5b66\u540d\u201d\u53eb\u201c\u5355\u8df3eBGP\u201d\u3002<\/span><\/strong><\/p>\n

\u00a0\u5176\u5b9e\u73b0\u539f\u7406\u662f\uff1aASBR\u5bf9\u7b49\u4f53\u95f4\uff0c\u4f7f\u7528\u4e00\u7ec4\u7269\u7406\u63a5\u53e3\uff0c\u5728VPNv4\u5730\u5740\u65cf\u4e0b\u5efa\u7acb\u5355\u8df3\u7684eBGP\u90bb\u5c45\uff0c\u4ece\u800c\u4f7fASBR\u4e4b\u95f4\u4f20\u9012VPNv4\u8def\u7531\uff0c\u4ece\u800c\u5b9e\u73b0\u79c1\u7f51\u8def\u7531\u7684\u8de8\u57df\u3002<\/strong><\/span><\/p>\n

 <\/p>\n

\u6362\u53e5\u8bdd\u8bf4\uff0c\u5c31\u662fASBR\u4e4b\u95f4\u53ea\u9700\u8981\u4e00\u7ec4eBGP\u90bb\u5c45\u5c31\u53ef\u4ee5\u5b9e\u73b0\u8de8\u57df\u4e86\u3002<\/span><\/p>\n

 <\/p>\n

Option-B\u8de8\u57df\u65f6\uff0cASBR\u4e4b\u95f4\u9700\u8981\u5f00\u542fMPLS\u6807\u7b7e\u8f6c\u53d1\uff0c\u4f46\u4e0d\u9700\u8981\u8fd0\u884cLDP\u5206\u53d1\u6807\u7b7e\uff0c\u4e5f\u4e0d\u9700\u8981\u8fd0\u884cIGP\u3002<\/span><\/p>\n

 <\/p>\n

<\/div><\/p>\n

<\/div><\/p>\n

Option-B\u7684\u5173\u952e\u70b9\uff1a<\/span><\/strong><\/p>\n

    \n
  • ASBR\u4e4b\u95f4\u4f7f\u7528\u4e00\u7ec4\u4e92\u8054\u5730\u5740\u5728VPNv4\u5730\u5740\u65cf\u4e0b\u5efa\u7acb\u5355\u8df3eBGP\u90bb\u5c45\uff1b\u6b64\u65f6\uff0cASBR\u4e4b\u95f4\u4f20\u9012\u7684\u662fVPNv4\u8def\u7531\uff0cASBR\u662f\u76f8\u4e92\u628a\u5bf9\u65b9\u5f53PE\u770b\u7684\u3002<\/span><\/li>\n
  • \u65e2\u7136ASBR\u4e4b\u95f4\u4f20\u9012\u7684\u662fVPNv4\u8def\u7531\uff0c\u5219\u5fc5\u987b\u4fdd\u8bc1\u4e24\u4fa7AS\u5185\u7684VRT\u7684Import RT\u548cExport RT\u914d\u5bf9<\/span><\/li>\n
  • \u5e76\u4e14\u9700\u8981\u4fdd\u8bc1ASBR\u4e4b\u95f4\u7684\u5185\u5c42\u6807\u7b7e\u8fde\u7eed<\/span><\/li>\n<\/ul>\n

     <\/p>\n

    <\/div><\/p>\n

    \u518d\u6765\u770b\u4e00\u4e0bOption-B\u8de8\u57df\u65f6\uff0c\u8def\u7531\u63a7\u5236\u5e73\u9762\u548c\u6570\u636e\u8f6c\u53d1\u5e73\u9762\u3002<\/span><\/p>\n

    <\/div><\/p>\n

    \u5982\u4e0a\u56fe\u6240\u793a\uff1a<\/span><\/p>\n

     <\/p>\n

    \u5728\u4f7f\u7528Option-B\u8de8\u57df\u7684\u60c5\u51b5\u4e0b\uff0cASBR\u4e4b\u95f4\u7684\u6570\u636e\u5305\u6709\u7531MP-BGP\u5206\u914d\u7684\u5185\u5c42\u6807\u7b7e\uff0c\u8fd9\u8bf4\u660eOption-B\u7684ASBR\u4e4b\u95f4\u4e0d\u662f\u7eafIP\u6570\u636e\u5305\u3002<\/span><\/p>\n

     <\/p>\n

    \u5982\u679c\u6b64\u65f6\u60f3\u5728Option-B\u7684ASBR\u4e4b\u95f4\u4e32\u5165\u900f\u660e\u7684\u9632\u706b\u5899\uff0c\u5219\u9700\u8981\u8003\u8651\u8be5\u9632\u706b\u5899\u662f\u4e0d\u662f\u80fd\u591f\u652f\u6301\u8bfb\u53d6\u6807\u7b7e\u5c01\u88c5\u7684\u7279\u5f81\u503c\u4fe1\u606f\u3002\u800c\u4e14\uff0c\u5f53\u9700\u8981\u8de8\u57df\u5bf9\u63a5\u7684\u4e24\u4e2a\u9aa8\u5e72\u7f51\u7684VRF\u4e0d\u662f\u7edf\u4e00\u89c4\u5212\u7684\uff0c\u5219\u5b83\u4eecVRF\u518d\u591a\uff0c\u4e5f\u4e0d\u9002\u5408\u4f7f\u7528Option-B\u8fdb\u884c\u5bf9\u63a5\u3002\u5426\u5219\uff0c\u5c31\u8981\u5bf9\u4e24\u4e2a\u9aa8\u5e72\u7f51\u5168\u7f51\u7684PE\u8bbe\u5907\u4e0a\u7684Export RT\u548cImport RT\u8fdb\u884c\u53d8\u66f4\uff0c\u8fd9\u4e2a\u64cd\u4f5c\u9762\u548c\u5de5\u4f5c\u91cf\u5c31\u66f4\u5927\u4e86<\/span><\/p>\n

     <\/p>\n

    \u6240\u4ee5\uff0c\u5bf9\u4e8e\u8de8\u57df\u53cc\u65b9\u9aa8\u5e72\u7f51\u90fd\u662f\u65b0\u5efa\uff0c\u4e14VRF\u90fd\u662f\u7edf\u4e00\u89c4\u5212\u7684\u573a\u5408\u4e0b\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528Option-B\u3002<\/span><\/p>\n

    <\/div><\/p>\n

    \u524d\u51e0\u5929\uff0c\u6211\u5728\u670b\u53cb\u5708\u91cc\u53d1\u4e86\u8fd9\u6837\u4e00\u4e2a\u9762\u8bd5\u9898\uff1a<\/span><\/p>\n

     <\/p>\n

    \u5982\u56fe\u6240\u793a\uff0cAS#2\u662f\u4e8c\u7ea7\u9aa8\u5e72\u7f51\uff0c\u9700\u8981\u548cAS#1\u7684\u4e00\u7ea7\u9aa8\u5e72\u7f51\u8fdb\u884cMPLS VPN\u8de8\u57df\u5bf9\u63a5\u3002\u6b64\u65f6\uff0cAS#2\u548cAS#1\u67094\u4e2aVRF\u7684\u79c1\u7f51\u8def\u7531\u9700\u8981\u8de8\u57df\u3002<\/span><\/p>\n

     <\/p>\n

    \u5df2\u77e5\uff0cAS#1\u5185\u7684VRF\u548cAS#2\u5185\u7684VRF\u4e0d\u662f\u7edf\u4e00\u89c4\u5212\u7684\uff0c\u5728\u8de8\u57df\u5bf9\u63a5\u4e4b\u524d\u90fd\u662f\u5404\u81ea\u5185\u90e8\u89c4\u5212\u7684\u3002<\/span><\/p>\n

     <\/p>\n

    \u6709\u4eba\u8ba4\u4e3a\uff0c\u8de8\u57df\u7684\u79c1\u7f51\u8def\u7531\u67094\u4e2aVRF\uff0c\u53ef\u4ee5\u8003\u8651\u91c7\u7528Option-B\uff0c\u4f46\u4e5f\u6709\u4eba\u8ba4\u4e3a\uff0c\u6b64\u65f6\u82e5\u4f7f\u7528Option-B\u8fdb\u884c\u8de8\u57df\uff0c\u5219\u4f1a\u66f4\u9ebb\u70e6\u3002<\/span><\/p>\n

     <\/p>\n

    \u90a3\u4f60\u600e\u4e48\u770b\u5462\uff1f<\/span><\/p>\n

    <\/div><\/p>\n

    \u5176\u5b9e\u8fd9\u4e2a\u95ee\u9898\u91cc\u9762\u63d0\u5230\u4e86\uff1aAS#1\u5185\u7684VRF\u548cAS#2\u5185\u7684VRF\u4e0d\u662f\u7edf\u4e00\u89c4\u5212\u7684\uff0c\u5728\u8de8\u57df\u5bf9\u63a5\u4e4b\u524d\u90fd\u662f\u5404\u81ea\u5185\u90e8\u89c4\u5212\u7684\u3002<\/span><\/p>\n

     <\/p>\n

    \u8fd9\u8bf4\u660e\u4e86\uff0cAS#1\u5185\u7684VRF\u548cAS#2\u7684VRF\u53ef\u80fd\u4f1a\u6709VRF\u7684Export RT\u548cImport RT\u4e0d\u5339\u914d\u7684\u60c5\u51b5\u3002\u5982\u679c\u4f7f\u7528Option-B\u8de8\u57df\u7684\u8bdd\uff0c\u867d\u7136\u5728ASBR\u5bf9\u63a5\u7684\u4f7f\u7528\u53ea\u9700\u8981\u914d\u7f6e\u4e00\u7ec4eBGP\u90bb\u5c45\uff0c\u770b\u8d77\u6765\u662f\u8f7b\u677e\u4e86\u3002\u4f46\u662fOption-B\u8de8\u57df\u9700\u8981\u8ba9AS#1\u5185\u7684\u6240\u6709PE\u548cAS#2\u7684\u6240\u6709PE\u90fd\u68c0\u67e5\u4e00\u8fb9VRF\u7684RT\u914d\u7f6e\uff0c\u4e14\u53ef\u80fd\u5bf9\u5168\u7f51\u7684PE\u8bbe\u5907\u7684VRF\u7684Export RT\u548cImport RT\u8fdb\u884c\u91cd\u65b0\u914d\u7f6e\u3002\u8fd9\u4e2a\u5de5\u4f5c\u91cf\uff0c\u6d89\u53ca\u5230\u5168\u90e8PE\u8bbe\u5907\uff0c\u8303\u56f4\u5927\uff0c\u6539\u9020\u7684\u98ce\u9669\u4e5f\u4f1a\u968f\u4e4b\u589e\u52a0\u3002<\/span><\/p>\n

     <\/p>\n

    \u800c\u7528Option-A\u7684\u8bdd\uff0c\u867d\u7136\u9700\u8981\u914d\u7f6e4\u7ec4eBGP\u90bb\u5c45\uff0c\u4f46\u662f\u6bd4\u8d77\u5168\u7f51\u4fee\u6539VRF\u6765\u8bf4\uff0c\u8fd9\u4e2a\u5de5\u4f5c\u91cf\u8981\u5c0f\u5f88\u591a\u3002\u800c\u4e14Option-A\u53ea\u9700\u8981\u5728ASBR\u4e0a\u53d8\u66f4\u914d\u7f6e\uff0c\u53d8\u66f4\u7684\u8303\u56f4\u4e5f\u8981\u5c0f\u5f88\u591a\u3002<\/span><\/p>\n

     <\/p>\n

    \u6240\u4ee5\uff0c\u8fd9\u4e2a\u60c5\u51b5\uff0c\u867d\u7136VRF\u6570\u91cf\u8f83\u591a\uff0c\u4f46Option-A\u5c31\u6bd4Option-B\u66f4\u9002\u5408\u3002<\/span><\/p>\n

     <\/p>\n

    \u7efc\u4e0a\u6240\u8ff0\uff1a<\/span><\/strong><\/p>\n

     <\/p>\n

    Option-A\u7684\u4f18\u70b9\uff1a<\/span><\/strong><\/p>\n

    \u5728ASBR\u4e4b\u95f4\u6bcf\u4e2aVRF\u5355\u72ec\u5efa\u7acb\u4e00\u4e2aBGP\u90bb\u5c45\uff0c\u601d\u8def\u7b80\u5355\u6e05\u6670\uff1b<\/span><\/p>\n

    \u5bf9\u4e8e\u5355\u4e2aVRF\u51fa\u73b0\u7f51\u7edc\u6545\u969c\uff0c\u4e0d\u4f1a\u5f71\u54cd\u5230\u5176\u4ed6VRF\uff0c\u6613\u4e8e\u6392\u9519\uff1b<\/span><\/p>\n

    \u5bf9\u8def\u7531\u7b56\u7565\u7684\u63a7\u5236\u6bd4\u8f83\u7075\u6d3b\uff0c\u5bb9\u6613\u5b9e\u73b0\u591a\u4e2aASBR\u4e4b\u95f4\u4e0d\u540cVRF\u6d41\u91cf\u7684\u8d1f\u8f7d\u5747\u8861\uff1b<\/span><\/p>\n

    ASBR\u4e4b\u95f4\u4f20\u9012\u7684\u662f\u7eafIP\u6570\u636e\u5305\uff0c\u517c\u5bb9\u6027\u8f83\u597d\u3002<\/span><\/p>\n

     <\/p>\n

    Option-B\u7684\u4f18\u70b9\uff1a<\/span><\/strong><\/p>\n

    \u6269\u5c55\u6027\u597d\uff0c\u80fd\u591f\u4ee5\u4e00\u4e2aVPNv4\u7684eBGP\u90bb\u5c45\u5b9e\u73b0\u591a\u4e2aVRF\u79c1\u7f51\u8def\u7531\u8de8\u57df\uff1b<\/span><\/p>\n

    \u5982\u679c\u9aa8\u5e72\u7f51\u90fd\u662f\u7edf\u4e00\u89c4\u5212\uff0c\u4e14VRF\u6570\u91cf\u8f83\u591a\uff0c\u5219\u9002\u5408\u4f7f\u7528Option-B\u8de8\u57df\u3002<\/span><\/p>\n

     <\/p>\n

    \u8fd9\u91cc\u53ef\u4ee5\u770b\u5230\uff0cOption-A\u548cOptionB\u5728\u5404\u81ea\u6709\u5404\u81ea\u7684\u4f7f\u7528\u573a\u5408\uff0c\u4e24\u8005\u4e4b\u524d\u53ea\u6709\u201c\u9002\u5408\u4e0e\u4e0d\u9002\u5408\u201d\u7684\u8bf4\u6cd5\uff0c\u5e76\u4e0d\u5b58\u5728\u8bf4Option-A\u548cOptionB\u5b70\u4f18\u5b70\u52a3\u7684\u8bf4\u6cd5\u3002<\/span><\/p>\n

     <\/p>\n

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