Exporting Flow Data
Flow switching needs to be turned on in a maint window, because it makes the routers belch impolitely
- All interfaces that can contribute towards traffic sent towards the peer get “ip route-cache flow sampled”
- See kiddie script! See router die!
Export config is trivial:
ip flow-export source Loopback0
ip flow-export version 5 peer-as
ip flow-export destination 192.168.38.9 3871
ip flow-sampling-mode packet-interval 1000
- Note low sampling rate of 1:1000.