{"id":4225,"date":"2026-04-06T09:00:00","date_gmt":"2026-04-06T00:00:00","guid":{"rendered":"http:\/\/daimaru-tech-blog.com\/?p=4225"},"modified":"2026-04-01T21:57:46","modified_gmt":"2026-04-01T12:57:46","slug":"%e3%80%90bgp%e5%85%a5%e9%96%80%e3%80%91bgp-attribute%ef%bc%88%e5%b1%9e%e6%80%a7%ef%bc%89%e3%81%aeweight%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"https:\/\/daimaru-tech-blog.com\/?p=4225","title":{"rendered":"\u3010BGP\u5165\u9580\u3011BGP Attribute\uff08\u5c5e\u6027\uff09\u306eWeight\u306b\u3064\u3044\u3066"},"content":{"rendered":"\n

\u306f\u3058\u3081\u306b<\/h2>\n\n\n\n

\u3053\u3093\u306b\u3061\u306f\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u300c\u3060\u3044\u307e\u308b\u300d\u3067\u3059\u3002<\/p>\n\n\n\n

\u4eca\u56de\u306f\u3001BGP\u30b7\u30ea\u30fc\u30ba\u306e\u4e00\u74b0\u3067Attribute\uff08\u5c5e\u6027\uff09\u306e1\u3064\u3067\u3042\u308b\u300cWeight\u300d\u306b\u3064\u3044\u3066<\/strong>\u307e\u3068\u3081\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n

\"\"<\/div>
\n

\u3053\u3053\u304b\u3089BGP\u3063\u307d\u304f\u306a\u3063\u3066\u304d\u307e\u3059\uff01<\/span><\/strong><\/p>\n<\/span><\/span><\/span><\/div><\/div><\/div><\/div>\n\n

\n
\n
\n
\n \n <\/div>\n
\n
\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u6559\u79d1\u66f8<\/div>\n
\u301c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u76ee\u6307\u3059\u4eba\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u306a\u3063\u305f\u3070\u304b\u308a\u306e\u4eba\u306b\u304a\u3059\u3059\u3081\u306e1\u518a\u301c<\/div>\n
\n \n Amazon\u3067\u898b\u308b\n <\/a>\n \n \u697d\u5929\u3067\u898b\u308b\n <\/a>\n <\/div>\n <\/div>\n <\/div>\n<\/center>\n<\/div>\n\n\n

Weight\u5024\u3068\u306f\uff1f<\/h2>\n\n\n\n

\u6982\u8981<\/h3>\n\n\n\n

\u5148\u7a0b\u8ff0\u3079\u305f\u901a\u308a\u3001Cisco\u3067\u3042\u308a\u3001Cisco\u30eb\u30fc\u30bf\u306e\u4e2d\u3067\u306f\u6700\u3082\u512a\u5148\u3055\u308c\u308bAttribute\uff08\u5c5e\u6027\uff09<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u4e00\u822c\u7684\u306b\u3001AS\u5185\u90e8\u304b\u3089\u5916\u90e8\u5411\u3051\u3078\u306e\u7d4c\u8def\u3092\u5236\u5fa1\u3059\u308b\u305f\u3081\u306eAttribute\uff08\u5c5e\u6027\uff09\u3067\u3042\u308a\u3001\u5024\u304c\u5927\u304d\u3044\u7a0b\u512a\u5148\u5ea6\u304c\u9ad8\u304f<\/span><\/strong>\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u3053\u306eAttribute\uff08\u5c5e\u6027\uff09<\/strong>\u306f\u81ea\u5206\u81ea\u8eab\u306e\u307f\u3067\u4fdd\u6301\u3059\u308b\u305f\u3081\u3001\u8907\u6570\u306e\u5b9b\u5148\u304c\u3042\u308b\u969b\u306b\u5229\u7528<\/span><\/strong>\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

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

\u8a2d\u5b9a\u65b9\u6cd5\uff08Cisco IOS\uff09<\/h3>\n\n\n\n

Weight\u5024\u306e\u8a2d\u5b9a<\/strong>\u306b\u306f\u3001\u300cNeighbor\u3078\u306e\u8a2d\u5b9a\u300d\u3068\u300cRoute-Map\u3078\u306e\u8a2d\u5b9a\u300d\u306e2\u30d1\u30bf\u30fc\u30f3\u5b58\u5728<\/strong>\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

1\u3064\u76ee\u306e\u300cNeighbor\u3078\u306e\u8a2d\u5b9a\u300d\u306f\u3001\u901a\u5e38\u306eNeighbor\u8a2d\u5b9a\u306e\u76f4\u5f8c\u306b\u6307\u5b9a\u3059\u308b\u305f\u3081\u3001\u7c21\u5358\u306a\u8a2d\u5b9a\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u3057\u304b\u3057\u3001\u6307\u5b9a\u3057\u305fNeighbor\u304b\u3089\u53d7\u4fe1\u3057\u3066\u3044\u308b\u5168\u7d4c\u8def\u306bWeight\u5024\u304c\u53cd\u6620\u3055\u308c\u308b\u305f\u3081\u3001\u7279\u5b9a\u306e\u7d4c\u8def\u306e\u307f\u5236\u5fa1\u3057\u305f\u3044\u5834\u5408\u306f\u4e0d\u5411\u304d<\/span><\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

Neighbor\u3078\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/strong><\/span><\/div>
\n
router bgp <\/span><AS\u756a\u53f7><\/span>\n neighbor <\/span><Neighbor\u306eIP\u30a2\u30c9\u30ec\u30b9><\/span> weight <\/span><weight\u5024><\/span><\/code><\/pre>\n<\/div><\/div>\n\n\n\n
2\u3064\u76ee\u306e\u300cRoute-map\u306b\u3088\u308b\u8a2d\u5b9a\u300d\u306f\u3001\u300cPrefix-List\u300d\u3068\u300cRoute-map\u300d\u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u7279\u5b9a\u306e\u7d4c\u8def\u306e\u307f\u306bWeight\u5024\u3092\u9069\u7528\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u3053\u306e\u65b9\u6cd5\u3092\u5229\u7528\u3057\u307e\u3059<\/p>\n\n\n\n
Route-map\u306b\u3088\u308b\u8a2d\u5b9a<\/strong><\/span><\/div>
\n
#prefix-list\u306e\u5b9a\u7fa9\nip prefix-list <\/span><\u30ea\u30b9\u30c8\u540d><\/span> permit <\/span><IP Range>\/<prefix><\/span>\n\n<\/span>#route-map\u306e\u5b9a\u7fa9\nroute-map<\/span> <\u30de\u30c3\u30d7\u540d><\/span> permit 10\n match ip address prefix-list <\/span><\u30ea\u30b9\u30c8\u540d><\/span>\n set weight <\/span><weight\u5024><\/span>\n\n<\/span>#BGP\u3078\u306e\u8a2d\u5b9a\u9069\u7528\nrouter bgp <\/span><AS\u756a\u53f7><\/span>\n neighbor <\/span><Neighbor\u306eIP\u30a2\u30c9\u30ec\u30b9><\/span> route-map <\/span><\u30de\u30c3\u30d7\u540d><\/span> in<\/span><\/code><\/pre>\n<\/div><\/div>\n\n\n\n
\u52d5\u4f5c\u78ba\u8a8d<\/h3>\n\n\n\n
Weight\u5024\u306e\u6982\u8981\u3092\u7406\u89e3\u3057\u305f\u3068\u3053\u308d\u3001\u5b9f\u6a5f\u306b\u3088\u308b\u52d5\u4f5c\u78ba\u8a8d\u3092\u884c\u3063\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u691c\u8a3c\u69cb\u6210<\/h4>\n\n\n\n
\n
<\/center>\n<\/div><\/div>\n\n\n\n
\u78ba\u8a8d\u9805\u76ee<\/h4>\n\n\n\n
No<\/th>\u9805\u76ee<\/th>\u8a73\u7d30<\/th><\/tr><\/thead>
1<\/td>Neighbor\u306b\u3088\u308bWeight\u5024\u306e\u6307\u5b9a<\/td>\u7d4c\u8def\u5168\u4f53\u3078\u306eWeight\u5024\u3092\u6307\u5b9a\u3057\u3001\u524d\u5f8c\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b<\/td><\/tr>
2<\/td>Route-Map\u306b\u3088\u308bWeight\u5024\u306e\u6307\u5b9a<\/td>\u7279\u5b9a\u7d4c\u8def\u3078\u306eWeight\u5024\u3092\u6307\u5b9a\u3057\u3001\u524d\u5f8c\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u9805\u76ee\u2460\uff1aNeighbor\u306b\u3088\u308bWeight\u5024\u306e\u6307\u5b9a<\/h4>\n\n\n\n
Neighbor\u306b\u3088\u308bWeight\u5024\u306e\u52d5\u4f5c\u78ba\u8a8d\u3092\u884c\u3046\u524d\u306b\u4e8b\u524d\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n
\u4eca\u56de\u306f\u3001AS400\u306e\u30eb\u30fc\u30bf9\u306bLo0\u306e\u300c10.40.9.1\u300d\u3068Lo1\u300c10.40.19.1\u300d\u306b\u8a2d\u5b9a\u3057\u3001\u4ed6AS\u306b\u5e83\u5831<\/strong>\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
Weight\u5024\u306e\u8a2d\u5b9a\u306a\u3057\u306e\u6642\u306f\u4ee5\u4e0b\u306e\u72b6\u614b\u3067\u3059\u3002<\/p>\n\n\n\n
\u4e8b\u524d\u78ba\u8a8d<\/span><\/div>
\n
Router8#show ip bgp<\/span>\nBGP table version is 14, local router ID is 10.30.8.1\nStatus codes: s suppressed, d damped, h history, * valid, > best, i - internal,\n              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,\n              x best-external, a additional-path, c RIB-compressed,\n              t secondary path,\nOrigin codes: i - IGP, e - EGP, ? - incomplete\nRPKI validation codes: V valid, I invalid, N Not found\n\n     Network          Next Hop            Metric LocPrf Weight Path\n *    10.10.1.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                            0 100 i\n *    10.10.2.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1              0             0 100 i\n *    10.10.3.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                            0 100 i\n *    10.10.4.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                            0 100 i\n *>   10.20.5.1\/32     192.168.4.1                            0 200 i\n *                     192.168.3.1                            0 100 200 i\n *>   10.20.6.1\/32     192.168.4.1              0             0 200 i\n *                     192.168.3.1                            0 100 200 i\n *>   10.20.7.1\/32     192.168.4.1                            0 200 i\n *                     192.168.3.1                            0 100 200 i\n *>   10.30.8.1\/32     0.0.0.0                  0         32768 i\n *    10.40.9.1\/32     192.168.4.1                            0 200 400 i\n *>                    192.168.3.1                            0 100 400 i\n *    10.40.19.1\/32    192.168.3.1                            0 100 400 i\n *>                    192.168.4.1                            0 200 400 i<\/span>\nRouter8#show ip route 10.40.9.1<\/span>\nRouting entry for 10.40.9.1\/32\n  Known via \"bgp 300\", distance 20, metric 0\n  Tag 100, type external\n  Last update from 192.168.3.1 4d07h ago\n  Routing Descriptor Blocks:\n  * 192.168.3.1, from 192.168.3.1, 4d07h ago<\/span>\n      Route metric is 0, traffic share count is 1\n      AS Hops 2\n      Route tag 100\n      MPLS label: none\nRouter8#show ip route 10.40.19.1\nRouting entry for 10.40.19.1\/32\n  Known via \"bgp 300\", distance 20, metric 0\n  Tag 200, type external\n  Last update from 192.168.4.1 00:02:31 ago\n  Routing Descriptor Blocks:\n  * 192.168.4.1, from 192.168.4.1, 00:02:31 ago<\/span>\n      Route metric is 0, traffic share count is 1\n      AS Hops 2\n      Route tag 200\n      MPLS label: none<\/code><\/pre>\n<\/div><\/div>\n\n\n\n
\u8a2d\u5b9a\u3092\u6295\u5165\u3059\u308b\u524d\u306bConfig\u306e\u4e8b\u524d\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
Route9 Config\uff08\u4e8b\u524d\u72b6\u614b\uff09<\/span><\/div>
\n
Router9#show running-config interface loopback 0<\/span>\ninterface Loopback0\n ip address 10.40.9.1 255.255.255.255\nend\nRouter9#show running-config interface loopback 1<\/span>\ninterface Loopback1\n ip address 10.40.19.1 255.255.255.255\nend\n\nRouter9#show run | sec bgp<\/span>\nrouter bgp 400\n bgp router-id 10.40.9.1\n bgp log-neighbor-changes\n network 10.40.9.1 mask 255.255.255.255\n network 10.40.19.1 mask 255.255.255.255\n neighbor 192.168.5.1 remote-as 100\n neighbor 192.168.5.1 update-source GigabitEthernet0\/1\n neighbor 192.168.6.1 remote-as 200\n neighbor 192.168.6.1 update-source GigabitEthernet0\/2\nRouter9#<\/code><\/pre>\n<\/div><\/div>\n\n\n\n
\u6b21\u306bRoute8\u306eConfig\u306f\u4ee5\u4e0b\u306e\u72b6\u614b\u3067\u3059\u3002<\/p>\n\n\n\n
Router8 Config\uff08\u4e8b\u524d\u72b6\u614b\uff09<\/span><\/div>
\n
Router8#show run | sec bgp<\/span>\nrouter bgp 300\n bgp router-id 10.30.8.1\n bgp log-neighbor-changes\n network 10.30.8.1 mask 255.255.255.255\n neighbor 192.168.3.1 remote-as 100\n neighbor 192.168.3.1 update-source GigabitEthernet0\/2\n neighbor 192.168.4.1 remote-as 200\n neighbor 192.168.4.1 update-source GigabitEthernet0\/1<\/code><\/pre>\n<\/div><\/div>\n\n\n\n
\u3053\u3053\u306b\u4ee5\u4e0b\u306e\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u6295\u5165Config\uff08Router8\uff09<\/span><\/div>
\n
Router8#conf t<\/span>\nRouter8(config)#router bgp 300<\/span>\nRouter8(config-router)#neighbor 192.168.3.1 weight 200<\/span><\/code><\/pre>\n<\/div><\/div>\n\n\n\n
\u6295\u5165\u5f8c\u306e\u72b6\u614b\u306f\u3001\u3057\u3063\u304b\u308a\u53cd\u6620\u3055\u308c\u3066\u304a\u308a\u3001\u300c192.168.3.1<\/strong>\u300d\u304c\u30d9\u30b9\u30c8\u30d1\u30b9\u306b\u306a\u3063\u3066\u3044\u308b<\/span>\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u6295\u5165\u5f8c\u306e\u72b6\u614b\uff08Router8\uff09<\/span><\/div>
\n
Router8#show ip bgp<\/span>\nBGP table version is 28, local router ID is 10.30.8.1\nStatus codes: s suppressed, d damped, h history, * valid, > best, i - internal,\n              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,\n              x best-external, a additional-path, c RIB-compressed,\n              t secondary path,\nOrigin codes: i - IGP, e - EGP, ? - incomplete\nRPKI validation codes: V valid, I invalid, N Not found\n\n     Network          Next Hop            Metric LocPrf Weight Path\n *    10.10.1.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                          200 100 i\n *    10.10.2.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1              0           200 100 i\n *    10.10.3.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                          200 100 i\n *    10.10.4.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                          200 100 i\n *    10.20.5.1\/32     192.168.4.1                            0 200 i\n *>                    192.168.3.1                          200 100 200 i\n *    10.20.6.1\/32     192.168.4.1              0             0 200 i\n *>                    192.168.3.1                          200 100 200 i\n *    10.20.7.1\/32     192.168.4.1                            0 200 i\n *>                    192.168.3.1                          200 100 200 i\n *>   10.30.8.1\/32     0.0.0.0                  0         32768 i\n *    10.40.9.1\/32     192.168.4.1                            0 200 400 i\n *>                    192.168.3.1                          200<\/span><\/strong> 100 400 i\n *    10.40.19.1\/32    192.168.4.1                            0 200 400 i\n *>                    192.168.3.1                          200<\/span><\/strong> 100 400 i\nRouter8#show ip route 10.40.9.1<\/span>\nRouting entry for 10.40.9.1\/32\n  Known via \"bgp 300\", distance 20, metric 0\n  Tag 100, type external\n  Last update from 192.168.3.1 00:01:58 ago\n  Routing Descriptor Blocks:\n  * 192.168.3.1, from 192.168.3.1, 00:01:58 ago\n      Route metric is 0, traffic share count is 1\n      AS Hops 2\n      Route tag 100\n      MPLS label: none\nRouter8#show ip route 10.40.19.1<\/span>\nRouting entry for 10.40.19.1\/32\n  Known via \"bgp 300\", distance 20, metric 0\n  Tag 100, type external\n  Last update from 192.168.3.1 00:02:02 ago\n  Routing Descriptor Blocks:\n  * 192.168.3.1, from 192.168.3.1, 00:02:02 ago\n      Route metric is 0, traffic share count is 1\n      AS Hops 2\n      Route tag 100\n      MPLS label: none<\/code><\/pre>\n<\/div><\/div>\n\n\n\n
\u9805\u76ee\u2461\uff1aRoute-map\u306b\u3088\u308bWeight\u5024\u306e\u6307\u5b9a<\/h4>\n\n\n\n
\u6b21\u306bPrefix-List\u3084Route-map\u3092\u5229\u7528\u3057\u3001\u7279\u5b9a\u306ePrefix\u306e\u307fWeight\u5024\u3092\u6307\u5b9a\u3059\u308b\u65b9\u6cd5\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u5148\u7a0b\u3068\u540c\u69d8\u306b\u4e8b\u524d\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u4e8b\u524d\u72b6\u614b\uff08Router8\uff09<\/span><\/div>
\n
Router8#show ip bgp\nBGP table version is 49, local router ID is 10.30.8.1\nStatus codes: s suppressed, d damped, h history, * valid, > best, i - internal,\n              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,\n              x best-external, a additional-path, c RIB-compressed,\n              t secondary path,\nOrigin codes: i - IGP, e - EGP, ? - incomplete\nRPKI validation codes: V valid, I invalid, N Not found\n\n     Network          Next Hop            Metric LocPrf Weight Path\n *    10.10.1.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                            0 100 i\n *    10.10.2.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1              0             0 100 i\n *    10.10.3.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                            0 100 i\n *    10.10.4.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                            0 100 i\n *>   10.20.5.1\/32     192.168.4.1                            0 200 i\n *                     192.168.3.1                            0 100 200 i\n *>   10.20.6.1\/32     192.168.4.1              0             0 200 i\n *                     192.168.3.1                            0 100 200 i\n *>   10.20.7.1\/32     192.168.4.1                            0 200 i\n *                     192.168.3.1                            0 100 200 i\n *>   10.30.8.1\/32     0.0.0.0                  0         32768 i\n *    10.40.9.1\/32<\/span>     192.168.4.1                            0 200 400 i\n *>                    192.168.3.1                            0 100 400 i<\/span>\n *    10.40.19.1\/32<\/span>    192.168.4.1                            0 200 400 i\n *>                    192.168.3.1                            0 100 400 i<\/span>\nRouter8#<\/code><\/pre>\n<\/div><\/div>\n\n\n\n
\u3053\u306e2\u3064\u306e\u7d4c\u8def\u306e\u3046\u3061\u3001\u300c10.40.9.1\u300d\u3092Nexthop\u300c192.168.4.1\u300d\u306b\u5909\u66f4\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n
\u6295\u5165Config\uff08Router8\uff09<\/span><\/div>
\n
Router8#conf t<\/span><\/span>\nRouter8(config)#ip prefix-list Weight seq 10 permit 10.40.9.1\/32<\/span>\nRouter8(config)#route-map Weight permit 10<\/span>\nRouter8(config-route-map)#match ip address prefix-list Weight<\/span>\nRouter8(config-route-map)#set weight 200<\/span>\nRouter8(config-route-map)#route-map Weight permit 20<\/span>\nRouter8(config)#router bgp 300<\/span>\nRouter8(config-router)#neighbor  192.168.4.1 route-map Weight in<\/span>\nRouter8#<\/code><\/pre>\n<\/div><\/div>\n\n\n\n
\u6295\u5165\u5f8c\u306e\u72b6\u614b\u306f\u60f3\u5b9a\u901a\u308a\u300c10.40.9.1\u300d\u306e\u307fWeight\u5024\u304c200\u3068\u306a\u3063\u3066\u304a\u308a\u3001\u30d9\u30b9\u30c8\u30d1\u30b9\u304c\u300c192.168.4.1\u300d\u3092Nexthop<\/span><\/strong>\u3068\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u4e8b\u5f8c\u72b6\u614b\uff08Router8\uff09<\/span><\/div>
\n
Router8#show ip bgp<\/span>\nBGP table version is 74, local router ID is 10.30.8.1\nStatus codes: s suppressed, d damped, h history, * valid, > best, i - internal,\n              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,\n              x best-external, a additional-path, c RIB-compressed,\n              t secondary path,\nOrigin codes: i - IGP, e - EGP, ? - incomplete\nRPKI validation codes: V valid, I invalid, N Not found\n\n     Network          Next Hop            Metric LocPrf Weight Path\n *    10.10.1.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                            0 100 i\n *    10.10.2.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1              0             0 100 i\n *    10.10.3.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                            0 100 i\n *    10.10.4.1\/32     192.168.4.1                            0 200 100 i\n *>                    192.168.3.1                            0 100 i\n *>   10.20.5.1\/32     192.168.4.1                            0 200 i\n *                     192.168.3.1                            0 100 200 i\n *>   10.20.6.1\/32     192.168.4.1              0             0 200 i\n *                     192.168.3.1                            0 100 200 i\n *>   10.20.7.1\/32     192.168.4.1                            0 200 i\n *                     192.168.3.1                            0 100 200 i\n *>   10.30.8.1\/32     0.0.0.0                  0         32768 i\n *>   10.40.9.1\/32     192.168.4.1                          200 200 400 i<\/span>\n *                     192.168.3.1                            0 100 400 i\n *    10.40.19.1\/32    192.168.4.1                            0 200 400 i\n *>                    192.168.3.1                            0 100 400 i\nRouter8#<\/code><\/pre>\n<\/div><\/div>\n\n\n\n
\u6700\u5f8c\u306b<\/h2>\n\n\n\n
\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001BGP\u306eAttribute\uff08\u5c5e\u6027\uff09\u306e1\u3064\u76ee\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u3053\u308c\u304b\u3089\u306f\u4e00\u3064\u306e\u8a18\u4e8b\u3092\u77ed\u304f\u3001\u308f\u304b\u308a\u3084\u3059\u304f\u307e\u3068\u3081\u3066\u3044\u3051\u308b\u3088\u3046\u306b\u30d6\u30ed\u30b0\u3092\u4fee\u6b63\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\n
\n
\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\u524d\u306e\u8a18\u4e8b\u3078<\/span>\n\t\t\t\t\t
\"\"<\/figure><\/div>\t\t\t\t\t
\n\t\t\t\t\t\t\u3010BGP\u5165\u9580\u3011BGP Attribute\uff08\u5c5e\u6027\uff09\u306b\u3064\u3044\u3066<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><\/div>\n<\/div>\n\n\n\n
\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\u6b21\u306e\u8a18\u4e8b\u3078<\/span>\n\t\t\t\t\t
\"\"<\/figure><\/div>\t\t\t\t\t
\n\t\t\t\t\t\t\u3010BGP\u5165\u9580\u3011BGP Attribute\uff08\u5c5e\u6027\uff09\u306eLocal Preference\u306b\u3064\u3044\u3066<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><\/div>\n<\/div><\/div>\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
\u306f\u3058\u3081\u306b \u3053\u3093\u306b\u3061\u306f\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u300c\u3060\u3044\u307e\u308b\u300d\u3067\u3059\u3002 \u4eca\u56de\u306f\u3001BGP\u30b7\u30ea\u30fc\u30ba\u306e\u4e00\u74b0\u3067Attribute\uff08\u5c5e\u6027\uff09\u306e1\u3064\u3067\u3042\u308b\u300cWeight\u300d\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u3044\u304d\u307e\u3059\u3002 Weight\u5024\u3068\u306f\uff1f \u6982\u8981 \u5148\u7a0b\u8ff0\u3079\u305f\u901a\u308a […]<\/p>\n","protected":false},"author":1,"featured_media":4230,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[616,607],"tags":[125,109,65,66,41,64,68,128,39,126],"class_list":["post-4225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bgp","category-607","tag-attribute","tag-bgp","tag-ccna","tag-ccnp","tag-cisco","tag-ios","tag-network","tag-weight-2","tag-39","tag-126"],"_links":{"self":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/4225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4225"}],"version-history":[{"count":13,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/4225\/revisions"}],"predecessor-version":[{"id":4336,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/4225\/revisions\/4336"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/media\/4230"}],"wp:attachment":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}