setup netflow on cisco 9300 stack

Setup netflow

x.x.x.x = your netflow collector eg solarwinds etc.

flow exporter NETFLOW-EXP-TO-ORION
 destination x.x.x.x
 source vlan1
 transport udp 2055


Setup what you want to record

flow record NETFLOW-RECORD-IN
 match ipv4 tos
 match ipv4 protocol
 match ipv4 source address
 match ipv4 destination address
 match transport source-port
 match transport destination-port
 match interface input
 match flow direction
 collect interface output
 collect counter bytes long
 collect counter packets long

flow record NETFLOW-RECORD-OUT
 match ipv4 tos
 match ipv4 protocol
 match ipv4 source address
 match ipv4 destination address
 match transport source-port
 match transport destination-port
 match interface output
 match flow direction
 collect interface input
 collect counter bytes long
 collect counter packets long

Setup the monitors


flow monitor NETFLOW-MON-OUT
 exporter NETFLOW-EXP-TO-ORION
 cache timeout inactive 10
 cache timeout active 60
 record NETFLOW-RECORD-OUT

flow monitor NETFLOW-MON-IN
 exporter NETFLOW-EXP-TO-ORION
 cache timeout inactive 10
 cache timeout active 60
 record NETFLOW-RECORD-IN

Enable the monitors on the interfaces
Enable under the  interfaces you want to collect netflow data from usually these will be uplinks, links to other sites etc





interface GigabitEthernet2/0/36
 ip flow monitor NETFLOW-MON-IN input
 ip flow monitor NETFLOW-MON-OUT output



Don't forget to write your config.
You might need to check firewall rules between the two hosts.
Allow a few minutes for the data to populate in the collector.