BGP Problemim

Oncelikle Selamlar, BGP de kafama takýlan birkaç konu var.Uygulamak
istediðim senaryo da Frankfurt,Istanbul,Paris,Londra da yerel ISP'lerden
devrelerim BGP çalýþmakta. Dusseldorf merkezimdeki serverlarým 7206
arkasýnda örneðin Fransa dan baðlanan kullanýcýlar Paris'teki yerel ISP
uzerinden erissin, Turkiye 'deki kullanýcýlar Istanbuldaki ISP uzerinden
erissin gibi.Yani yakýn olan ISP üzerinden eriþilmek ve erismek istiyorum.

 

Þu anda uyguladýðým durum BGP peerlarým için aspath prepend uygulamak
oluyor.Ama tabii bu ISP 'lerden bana erisimi etkiliyor.Gelen trafik geri
giderken benim default devremi kullanýyor.

 

Yakýn ISP'ler için gelen ve giden trafiði BGP de nasýl
yonlendirebilirim.Internette ornekleme bulamadým.Þu anki bgp konfigrasyonuma
ait örnek aþaðýdadýr.Fikirlerinizi rica ediyorum.

 

!

interface GigabitEthernet0/1

  ip address 10.10.10.1 255.255.252.0

  ip policy route-map FIBER

!

router bgp 1000

 no synchronization

 bgp log-neighbor-changes

 network 10.10.10.0 mask 255.255.252.0

 neighbor 11.11.11.1 description *** Paris ***

 neighbor 11.11.11.1 remote-as 2000

 neighbor 11.11.11.1 password 0 123456

 neighbor 11.11.11.1 ebgp-multihop 5

 neighbor 11.11.11.1 distribute-list 12 out

 neighbor 11.11.11.1 route-map FIBER_UZAK out

 neighbor 11.11.11.1 filter-list 9 in

 neighbor 12.12.12.1 description *** Istanbul ***

 neighbor 12.12.12.1 remote-as 3000

 neighbor 12.12.12.1 distribute-list 12 out

 neighbor 12.12.12.1 route-map FIBER_UZAK out

 neighbor 12.12.12.1 filter-list 9 in

 neighbor 13.13.13.1 remote-as 4000

 neighbor 13.13.13.1 description *** Londra ***

 neighbor 13.13.13.1 ebgp-multihop 4

 neighbor 13.13.13.1 distribute-list 12 out

 neighbor 13.13.13.1 route-map FIBER_UZAK out

 neighbor 14.13.13.1 filter-list 9 in

 neighbor 14.14.14.1 description *** Fransa ***

 neighbor 14.14.14.1 remote-as 5000

 neighbor 14.14.14.1 ebgp-multihop 5

 neighbor 14.14.14.1 distribute-list 12 out

 neighbor 14.14.14.1 route-map FIBER_UZAK out

 neighbor 14.14.14.1 filter-list 9 in

 no auto-summary

!

ip as-path access-list 9 permit ^(2000_)+

ip as-path access-list 9 permit ^(3000_)+

ip as-path access-list 9 permit ^(4000_)+

ip as-path access-list 9 permit ^(5000_)+

!

access-list 12 remark Anons

access-list 12 permit 10.10.10.0 0.0.3.255

access-list 51 remark Uzak

access-list 51 permit 10.10.10.0 0.0.3.255

access-list 60 remark Route

access-list 60 permit 10.10.10.0 0.0.3.255

!

route-map FIBER_UZAK permit 10

 match ip address 51

 set as-path prepend 1000 10000 10000

!

route-map FIBER_UZAK permit 50

!

!

route-map FIBER permit 10

 match ip address 60

 set ip next-hop 11.11.11.1

!

route-map FIBER permit 20

!

 


Ümit AYDINLI


Sistem Uzmaný

 



[Non-text portions of this message have been removed]



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