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bgp-extended

 
  • Feb 03, 2021

weight configuration

  • R1
conf t
router bgp 5500
neighbor 10.1.12.2 weight 200 ← 
exit
clear ip bgp *

next hop address

  • R2
conf t
router bgp 5500
neighbor 10.1.12.1 next-hop-self
exit
clear ip bgp *
  • R3
conf t
router bgp 5500
neighbor 10.1.13.1 next-hop-self
exit
clear ip bgp *

origin

i = iBgp → typed network command ? = redistribution

local preference

  • R3
# (per router)
conf t
router bgp 5500
 bgp default local-preference 850

# (apply to AS)
conf t
ip access-list standard ROUTES_FOR_R2
 permit 200.0.0.0 0.255.255.255
ip access-list standard ROUTES_FOR_R3
 permit 150.1.50.0 0.0.0.255
 permit 150.2.50.0 0.0.0.255
!
!
route-map LOCAL_PREF permit 10
 match ip address ROUTES_FOR_R3
 set local-preference 1000
!
route-map LOCAL_PREF permit 20
 match ip address ROUTES_FOR_R2
 set local-preference 10
!
route-map LOCAL_PREF permit 30


router bgp 5500
 bgp log-neighbor-changes
 neighbor 10.1.2.2 remote-as 5500
 neighbor 10.1.13.1 remote-as 5500
 neighbor 10.1.13.1 next-hop-self
 neighbor 10.1.36.6 remote-as 777
 neighbor 10.1.36.6 route-map LOCAL_PREF in ← 
 default-metric 200
!

metric

  • R3
router bgp 5500
 default-metric 200
!

route-map METRIC
set metric 200

temporary disable neighbor

  • R1
conf t
router bgp 5500
neighbor 10.1.12.2 shutdown ←
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