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Beginner

Cannot collect any flow statistics from Cisco ISR after successful Netflow configuration

Hello folks:

 

I have a cisco ISR and I configured Netflowv9 on it successfully. I am collecting the data on my Netflow collector without any problems.

 

However, I am not getting any return to some of my show commands on Cisco ISR router:

 

isr4300-3977#show ip cache verbose flow
IP packet size distribution (0 total packets):
1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480
.000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000

512 544 576 1024 1536 2048 2560 3072 3584 4096 4608
.000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000

IP Flow Switching Cache, 0 bytes
0 active, 0 inactive, 0 added
0 ager polls, 0 flow alloc failures
Active flows timeout in 30 minutes
Inactive flows timeout in 15 seconds
last clearing of statistics never
Protocol Total Flows Packets Bytes Packets Active(Sec) Idle(Sec)
-------- Flows /Sec /Flow /Pkt /Sec /Flow /Flow

SrcIf SrcIPaddress DstIf DstIPaddress Pr TOS Flgs Pkts
Port Msk AS Port Msk AS NextHop B/Pk Active

 

isr4300-3977#show ip top talkers
                                    ^

% Invalid input detected at '^' marker.

 

isr4300-3977#show version
Cisco IOS XE Software, Version 03.16.04b.S - Extended Support Release
Cisco IOS Software, ISR Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 15.5(3)S4b, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2016 by Cisco Systems, Inc.
Compiled Mon 17-Oct-16 20:23 by mcpre

ROM: IOS-XE ROMMON

 

What am I missing? I entered "ip route-cache cef" command under the interface just in case it is required for this command to work. That did not help. To be honest, I did not need "ip route-cache cef" to enable Netflow on this ISR router. 

 

Are these commands not supported on this platform?

 

Thanks

Everyone's tags (3)
2 REPLIES 2
VIP Advisor

Re: Cannot collect any flow statistics from Cisco ISR after successful Netflow configuration

Correct command as below :

 

show ip flow top-talkers

 

 

HO2#show ip flow ?
export Display export statistics
interface Display flow configuration on Interfaces
top-talkers Display top talkers

BB
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Beginner

Re: Cannot collect any flow statistics from Cisco ISR after successful Netflow configuration

That didn't work for me. Should I be enabling something on the router?

 

isr4300-3977#show ip flow top-talkers
^
% Invalid input detected at '^' marker.

isr4300-3977#show ip flow top-talkers
^
% Invalid input detected at '^' marker.

isr4300-3977#show ip f
isr4300-3977#show ip f
isr4300-3977#show ip f
isr4300-3977#show ip f?
% Unrecognized command
isr4300-3977#show ip f

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