[c-nsp] netflow not having stats
Joe Loiacono
jloiacon at gmail.com
Sun May 16 08:22:26 EDT 2021
Are you able to see the individual packets via your collector/analyzer?
Perhaps you could get a hint.
There is a handy tool called 'analyze_netflow_packets' in the FlowViewer
distribution which will unpack each packet individually.
The distro can be found at flowviewer.net.
Best,
Joe
On 5/16/2021 3:34 AM, james list wrote:
> Dear experts
> I've a netflow configured on ASR1001X which is sending indeed udp packet to
> collector but not displaying anything on the statistics, any idea why ?
>
> Config:
>
> flow exporter EXP_LOGS
> destination 10.101.11.119
> source Port-channel5.99 (this is the ip address used to send netflow
> packets)
> transport udp 2055
> export-protocol netflow-v5
>
> flow monitor MON_LOGS
> exporter EXP_LOGS
> record netflow ipv4 original-output
>
> interface Port-channel5.7 (this is the interface where Netflow works)
> ip flow monitor MON_LOGS sampler SAMPLER_1 output
>
> sampler SAMPLER_1
> mode random 1 out-of 1024
>
> Here the statistics at zero, but indeed traffic is arriving to the Netflow
> collector:
>
> Flow Exporter EXP_LOGS:
> Packet send statistics (last cleared 2d16h ago):
> Successfully sent: 0 (0 bytes)
>
> Client send statistics:
> Client: Flow Monitor MON_LOG
> Records added: 0
> Bytes added: 0
>
> Thanks in advance for any hint.
> Cheers
> James
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