BGP Route Aggreagation

BGP Route Aggreagation helps to reduce the size of the routing table. A summary route is announced to the peer. The component routes, that make up the aggregate, can be suppressed or announced additionally to the aggregate. At least one component route has to be in the BGP table for the aggregate to be announced.
The BGP setup is as follows. R1 and R2 are in AS 100, R3 is in AS200.
The component routes are announced on R1. As BGP needs valid routes in the routing table before announcing networks to peers, interface Loopback 1 is configured with 5 addresses.

R1#show running-config inter loopback 1
Building configuration...

BGPFLAP: a simple tcl script to flap an interface

Hi all,
today I was trying the bgp dampening feature, and I wrote this simple tclsh script to flap an interface during my lab tests:

first, configure an interface with the route to flap:

R3#sh run int lo 10 | beg int
interface Loopback10
 ip address 10.10.10.10 255.255.255.0
end

then configure the network statement for that route under the bgp process: 

R3#sh run | sec router bgp
router bgp 300
 no synchronization
 bgp log-neighbor-changes
 bgp dampening
 network 10.10.10.0 mask 255.255.255.0
 neighbor 192.168.2.1 remote-as 200
 neighbor 192.168.2.1 ebgp-multihop 2
 neighbor 192.168.2.1 update-source Loopback0
 no auto-summary
R3#

and here is the tclsh script, I reccomend a wait time of 40-50 sec with the default bgp timers

BGP Route Reflector for IPv6

This is BGP Route for IPV6..
watch movie and do practice.

 

BGP Route Reflector for IPv6

BGP Route for IPV6..
watch movie and do practice