Setting Bgp Route Dampening - Zte ZXR10 5900E Series User Manual

ZXR10 5900E Series User Manual (IPv4 Volume)
F 22 BGP CONFEDERATION CONFIGURATION
IGURE
R3 configuration:
ZXR10_R3(config)#router bgp 65010
ZXR10_R3(config-router)#bgp confederation identifier 200
ZXR10_R3(config-router)#bgp confederation peers 65020
ZXR10_R3(config-router)#neighbor 210.61.10.1 remote-as 65010
ZXR10_R3(config-router)#neighbor 210.61.20.1 remote-as 65010
ZXR10_R3(config-router)#neighbor 210.61.19.2 remote-as 65020
ZXR10_R3(config-router)#neighbor 2.2.2.2 remote-as 100
R5 configuration:
ZXR10_R5(config)#router bgp 65010
ZXR10_R5(config-router)#bgp confederation identifier 200
ZXR10_R5(config-router)#neighbor 210.61.30.1 remote-as 65010
ZXR10_R5(config-router)#neighbor 210.61.20.1 remote-as 65010
When establishing the adjacency EBGP adjacency between R3 and
confederation peers is established. IBGP adjacency in the confed-
eration is established. This adjacency also occurs between R3 and
AS100. The AS100 does not know the existence of the confeder-
ation so R1 still establishes the adjacency with R3 in AS200.
R1 configuration:
ZXR10_R1(config)#router bgp 100
ZXR10_R1(config-router)#neighbor 2.2.2.1 remote-as 200

Setting BGP Route Dampening

BGP provides a Route dampening mechanism to reduce the stabil-
ity caused by Route Flap.
Each time the flap occurs the route is given a penalty of 1000.
Route will be suppressed to advertise when the Penalty reaches
the Suppress-limit. Each time the half-life-time comes, Penalty
exponentially decreases. The suppressed and advertised route will
be cancelled when the Penalty decreases to the Reuse-limit.
To make the BGP route damping effective or modify the BGP route
damping factors, perform the following steps:
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