ANTON
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2009-06-22 21:35:10, Á¶È¸ : 657, Ãßõ : 85 |
prepend¸¦ ÅëÇÑ Load balancing °³¼±ÀÌ °¡´ÉÇÏ´Ù.
1. ȯ°æ : À¯¸í Áõ±Ç»çÀÎ AÁõ±Ç»ç´Â ÀÎÅÍ³Ý ¶ó¿ìÅÍ 1´ë¸¦ °¡Áö°í ÀÖ´Ù.
ÀÌ ¶ó¿ìÅÍ´Â PSInet°ú º¸¶ó³Ý¿¡ °¢°¢ ¿¬°áµÇ¾î ÀÖ´Ù.
À̵éÀº BGP·Î ¿¬µ¿µÈ´Ù.
2. ¹®Á¦ : MRTG ºÐ¼®°á°ú ´ëºÎºÐÀÇ Æ®·¡ÇÈÀÌ º¸¶ó³ÝÀ¸·Î ¸ô¸®°í ÀÖÀ½.
3. ÇØ°á : BGP ¼³Á¤ ±â´ÉÁß Prepend ¶ó´Â ±â´ÉÀ» »ç¿ëÇÑ´Ù.
<¼Ö·ç¼Ç ¼Ò°³>
Prepend´Â ƯÁ¤ path¸¦ ´õ ±æ°Ô ¸¸µé¾î ÁÖ´Â ¹æ¹ýÀ» »ç¿ëÇÑ´Ù.
BGP´Â ÇÁ·ÎÅäÄÝ Æ¯¼º»ó AS pathÀÇ °³¼ö°¡ ÀûÀº path, Áï ªÀº path¸¦
Æ®·¡ÇÈ Àü¼ÛÀÇ ¿ì¼± °æ·Î·Î ¼±ÅÃÇÏ¿© Æ®·¡ÇÈ Ã³¸® ÇÑ´Ù. µû¶ó¼, ¸¸ÀÏ
A¶ó´Â path¿Í B¶ó´Â path°¡ ÀÖ°í, ÀÌÁß¿¡¼ A¶ó´Â path°¡ B¶ó´Â pathº¸´Ù
´õ ªÀ¸¸é, ¸ðµç Æ®·¡ÇÈÀº A¶ó´Â path·Î ¸ô¸®°Ô µÈ´Ù. ¸¸ÀÏ, A¶ó´Â path
ÂÊÀÇ path ±æÀ̸¦ °Á¦·Î ±æ°Ô ÇÑ´Ù¸é, B¶ó´Â pathÂÊÀ¸·Î ¾î´ÀÁ¤µµ Æ®·¡ÇÈÀÌ
ºÐ»êµÉ ¼ö ÀÖ°Ô µÈ´Ù.
<config ¹æ¹ý>
router bgp 3333
no synchronization
bgp log-neighbor-changes
bgp dampening
network 192.168.1.0
neighbor 10.10.10.1 remote-as 3333 <-- IBGP¼³Á¤ºÎºÐ
neighbor 10.10.10.1 next-hop-self
neighbor 203.200.125.253 remote-as 4444 <-- EBGP¼³Á¤ºÎºÐ
neighbor 203.200.125.253 soft-reconfiguration inbound <-configº¯°æÁï½Ã Àû¿ëµÇµµ·Ï
neighbor 203.200.125.253 route-map PREPEND out <-- Prepend Àû¿ë
neighbor 203.200.125.253 filter-list 10 out
ip as-path access-list 10 permit ^$
ip as-path access-list 10 deny .*
route-map PREPEND permit 10 <-- prepend°ü·Ã route-map Á¤ÀÇ
match as-path 10 <-- as-path access-list 10 Á¶°Ç ¸¸Á·¿©ºÎ?
set as-path prepend 3333 3333 3333 <-- match¸¸Á·½Ã, as-path¿¡ Ãß°¡ÀûÀÎ AS pathºÎ¿©
> clear ip bgp 203.200.125.253 <-- bgp table¿¡¼ Á¦°ÅÇؼ prepend¸¦ ½ÇÁ¦Àû¿ë
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