Exporting from a Peer or Origin AS

[admin]

I found the information below in this great Autonomous System document posted on Cisco’s web site.

Cisco Autonomous Systems

If your router uses BGP protocol, you can configure AS to be included in exports with command:

router(config)# ip flow-export version 5 [peer-as | origin-as]

The following configuration example shows how to configure export from a peer AS using the Version 5 record format:

Router(config-if)# ip route-cache flow
Router(config)# ip flow-export destination 172.17.246.225 9996
Router(config)# ip flow-export version 5 peer-as
Router(config)# ip flow-export source loopback 0
Router(config)# ip flow-cache timeout

In this example, you configure export from a peer AS using the ip flow-export version 5 peer-as command. The AS source is AS2, and the AS destination is AS4.

You can also configure export from an origin AS using the ip flow-export version 5 origin-as command. The AS source is AS1, and the AS destination is AS5.