Tag Archives: BGP

3.7.h Implement and troubleshoot other features

 3.7.h [ii] BGP synchronization

 

Synchronization in BGP is a tough concept at first. That’s why they love to teach it even though it’s off by default.

The rule of Synchronization:

The BGP synchronization rule states that if an AS provides transit service to another AS, BGP should not advertise a route until all of the routers within the AS have learned about the route via an IGP.

down arrow smaller

24bgp_synchonization

3.7.e Implement and troubleshoot scalability

3.7.e [ii] Confederations

screenshot

down arrow smaller

22bgp_confederation

the bgp table should look like this:

bgp_confed_01

what IGP am I using?

the tcl script should look like this:

foreach address {
192.168.12.1
192.168.12.2
192.168.13.1
192.168.13.3
192.168.23.2
192.168.24.2
192.168.23.3
192.168.35.3
192.168.24.4
192.168.45.4
192.168.46.4
192.168.35.5
192.168.45.5
192.168.56.5
192.168.46.6
192.168.56.6
1.1.1.1
2.2.2.2
3.3.3.3
4.4.4.4
5.5.5.5
6.6.6.6
} { ping $address
}