Show Top-Talkers via CLI command

[Richard Pidcock]

Can someone help out, I have an ISR4431/K9 running Amsterdam 17.3.5.  I'm wanting to issue a command via CLI to see top talkers.  I seem to recall using "show ip cache flow top-talkers" but that command is not available.  Not finding anything yet that helps me out.  Anyone know or can point me to the right resource or reference?

Thanks,

[M02@rt37 · Accepted solution]

Hello @Richard Pidcock 

Cisco 4300 supports only Flexible Netlfow, which means you have to configure all three components:

1. Record

2. Exporter

3. Monitor

and apply the Monitor to given interface.

See here:

https://community.cisco.com/t5/routing/top-talkers-command-in-isr-4431/td-p/2873680

[Richard Pidcock]

Thanks M02@rt37 , that's just the nudge I needed.  I think I've got what I need now.  Thanks again.

[M02@rt37]

You're so welcome @Richard Pidcock.

[Leo Laohoo]

If the router is going to use Flexible Net Flow, make sure it is not on 16.X.X to avoid CSCvo20934.

https://www.findbugzero.com/operational-defect-database/vendors/cisco/defects/CSCvo20934

[venkatraman-ponsairaam]

This command here gives you the top talker IP list as well as the list of Top talker applications used:

sh flow monitor *Flow_name* cache sort highest counter packets long | i IPV4 SOURCE ADDRESS|application name

Hope this helps !