Reference Guide

PDU Counters
Additional counters for various types of PDUs that are sent and received from neighbors are also supported.
These are seen in the output of the show ip bgp neighbor command.
Sample Configurations
The following example configurations show how to enable BGP and set up some peer groups. These examples are not
comprehensive directions. They are intended to give you some guidance with typical configurations.
To support your own IP addresses, interfaces, names, and so on, you can copy and paste from these examples to your CLI. Be
sure that you make the necessary changes.
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 23. 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 tengig 1/21
R1(conf-if-te-1/21)#ip address 10.0.1.21/24
R1(conf-if-te-1/21)#no shutdown
172
Border Gateway Protocol IPv4 (BGPv4)