Cisco 3750X Netflow

[john.barber]

I am trying to configure netflow on a Cisco 3750X switch. I accepts the flow record, flow exporter, flow monitor and sampler but wont accept the flow monitor on an interface.

Config is below

flow record COLLECT-1
 description Record to monitor network traffic
 match ipv4 destination address
 collect counter bytes
 collect counter packets
!
flow exporter SOLARWINDS-1
 description To Solarwinds
 destination 10.1.1.1 (not the actual address)
 source Vlan2
 transport udp 2055
!
flow monitor MONITOR-1
 record COLLECT-1
 exporter SOLARWINDS-1
 cache timeout active 300
!
sampler SAMPLER-1
 mode random 1 out-of 32
!

I get the following response when I try to add the config to an interface

SW01(config)#int g1/0/48
SW01(config-if)#ip flow monitor MONITOR-1 sampler SAMPLER-1 input
% Flow Monitor: 'MONITOR-1' could not be added.
SW01(config-if)#

I have kept it simple as per the cisco config guide, am I missing something really obvious ?

[Jerome BERTHIER]

Hi

There is some limitation to use flexible netflow on this platform :

Flexible NetFlow is supported only on the Catalyst 3750-X and 3560-X switch running the IP base or IP services feature set and equipped with the network services module. It is not supported on switches running the NPE or the LAN base image.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/15-0_1_se/configuration/guide/3750xcg/swmnetflow.html

Which image are you running ?

Regards

[john.barber]

Hi

I'm running

WS-C3750X-48P 15.0(2)SE11 C3750E-UNIVERSALK9-M

License Level: ipbase
License Type: Permanent
Next reload license Level: ipbase

It's operating as a layer 3 switch so I assume it is equipped with the network services module.

Regards

[Jerome BERTHIER · Accepted solution]

Do you have a service module C3KX-SM-10G ?

https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3750-x-series-switches/product_bulletin_c25-688868.html

It seems to be mandatory to export FNF.

You can use "sh inventory" to ckeck it.

Regards

[john.barber]

It would appear not

C3KX-NM-1G

So I guess its a no to using Netflow.

Thanks very much for your assistance.

Regards