Configuration Netflow in S-Series does NOT Work

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  • Updated 3 years ago
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This is the configuration of my S-Series, however my collector receives no information, I do not understand what the problem is.
I monitor the collector with "tcpdump port 2203" but nothing is received, however if from the S-Series run telnet to 2203 if you get it, so I discard it a problem iptables.

Any ideas?

My configuration:
# Chassis Firmware Revision:!
# netflow
set netflow export-interval 1
set netflow export-destination 2203
set netflow export-data enable vlan
set netflow port lag.0.121 enable both
set netflow template refresh-rate 600 timeout 1
set netflow cache enable

CPD1(su)->show netflow 

Cache Status:           enabled
Export Version:               5
Export Interval:              1 (min)
Number of Entries:       6291455
Inactive Timer:              40 (sec)
Template Refresh-rate:      600 (packets)
Template Timeout:             1 (min)

Destination IP                          UDP Port
--------------------------------------- --------                                2203

               Export Rate          Max Export Rate
 Slot      (records per second)   (records per second)
  2              10000                 20000
  3              10000                 20000

Enabled Ports Both Ingress and Egress:

Disabled Ports:

Export Statistics:
Network Packets Sampled:   285574261
Exported Packets:                  0
Exported Records:                  0
Export Packets Failed:             0
Export Records Dropped:            0
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Raúl Vp

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Posted 3 years ago

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Mark Lamond

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I have seen a similar problem.

We have a number of S series devices exporting flows successfully.

However the switch the netflow collector is attached to does not send out any flows despite all S series have an identical netflow configuration.

If i run wireshark on the collector i can see flows from all other switches, but not from the switch it is attached to.

I meant to speak to GTAC about it but have not had time yet.


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Raúl Vp

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it work!

A default interface must be configured for the records to export.

"set ip default interface vlan.0.1"

My S4 vlan.0.1 not exist, I have defined another interface and started to work.

Thanks GTAC.