Enabling Netflow on Catalyst 2960S

[KenArcher]

Has anyone been able to configure a 2960S to send netflow data? I'm trying to send to a Plixer Scrutinizer and haven't had any luck so far. I was able to setup a 2960X to send, but the IOS commands are vastly different between the two switches that I'm not sure if I have it configured correctly.

IDF-TEMP#sh ver
Cisco IOS Software, C2960S Software (C2960S-UNIVERSALK9-M), Version 15.2(2)E8, RELEASE SOFTWARE (fc1)

IDF-TEMP(config)#ip routing
IDF-TEMP(config)#ip flow-cache timeout active 1
IDF-TEMP(config)#ip flow-export source vlan1
IDF-TEMP(config)#ip flow-export version 9
IDF-TEMP(config)#ip flow-export destination 172.28.1.249 2055
IDF-TEMP(config)#int range gi1/0/1 - 26
IDF-TEMP(config-if)#ip flow ingress
IDF-TEMP(config-if)int vlan 1
IDF-TEMP(config-if)ip route-cache flow

IDF-TEMP#sh ip flow export
Flow export v9 is enabled for main cache
Export source and destination details :
VRF ID : Default
Source(1) 172.28.1.119 (Vlan1)
Destination(1) 172.28.1.249 (2055)
Version 9 flow records
0 flows exported in 0 udp datagrams
0 flows failed due to lack of export packet
0 export packets were sent up to process level
IDF-TEMP#

[Georg Pauwen · Accepted solution]

Hello,

I don't think the 2960s supports NetFlow at all. Your best option is to set up a SPAN session and use one of the free NetFlow collectors (such as the one linked below from Solarwinds):

https://www.solarwinds.com/free-tools/real-time-netflow-analyzer/registration?Program=852&c=70150000000P9Ia&CMP=BIZ-TAD-NMS-NETMAN-RTNFA-DL-2012

[KenArcher]

I was afraid of that. We are going to be upgrading to 2960X at some point, which support Netflow Lite, so I'll probably just wait. Thanks.