M4100-D12G Sflow - empty packets collected by nfdump

[KBC-UK]

Hi All,

I setup Sflow on a M4100-D12G (Vlan 1, 1 interface) sending traffic to remote host on the same network on TCP port 9995.

I can see packets coming (TCPDUMP) but I when I open packets with NFDUMP I can't see any data.

Collector is running Ubuntu 16.04 LTS properly updated. NFDUMP is the one from repositories,

Please, someone could help me?

Thank you.

[JohnC_V]

Hi KBC-UK,

Welcome to our community! 🙂

It seems that you were trying to collate packets from your switch. May I know on how did you setup your port mirroring? I also suggest to upgrade the firmware to its latest version.

You can download the latest firmware here.

Regards,

[KBC-UK]

Hi All, I apologise for late response/update.

I followed documentation on https://kb.netgear.com/21920/How-do-I-configure-statistical-packet-based-sampling-with-sFlow-using-t...

I will copy and paste switch configuration within 4 hours on another post.

Best regards,

Jose

[KBC-UK]

Hi All,

I attached sflow configuration. Oddly I can't see anything on the CLI/text configuration.

Hope this helps to pin point cause of the problem.

Best regards,

Jose

[KBC-UK]

Hi All,

Please, could someone help me with this problem?

Thank you.

Best regards,

Jose