Service Manual

The following illustration shows the configurations described on the following examples. These
configurations show how to create BGP areas using physical and virtual links. They include setting up the
interfaces and peers groups with each other.
Figure 28. Sample Configurations
Example of Enabling BGP (Router 1)
R1# conf
R1(conf)#int loop 0
R1(conf-if-lo-0)#ip address 192.168.128.1/24
R1(conf-if-lo-0)#no shutdown
R1(conf-if-lo-0)#show config
!
interface Loopback 0
ip address 192.168.128.1/24
no shutdown
R1(conf-if-lo-0)#int te 1/21
R1(conf-if-te-1/21)#ip address 10.0.1.21/24
R1(conf-if-te-1/21)#no shutdown
R1(conf-if-te-1/21)#show config
!
interface TengigabitEthernet 1/21
ip address 10.0.1.21/24
no shutdown
R1(conf-if-te-1/21)#int te 1/31
R1(conf-if-te-1/31)#ip address 10.0.3.31/24
R1(conf-if-te-1/31)#no shutdown
R1(conf-if-te-1/31)#show config
Border Gateway Protocol IPv4 (BGPv4)
249