[c-nsp] nfSen / nfDump

Nick Cutting ncutting at edgetg.com
Tue Aug 29 13:17:31 EDT 2017

Thank you for your help.

The main SFlow collection point(s) are 36 port 100g nexus 9236c, so I think it is based on different chipsets – ASE2

I can see the sampling rate with the show run all command, I was using the default of 4096.
I tried various values – but the traffic is always almost exactly double what I get when using snmp statistics.

So unless we have a way to disable sFlow in both directions – I will need to divide by 2 for non-netflow sources.
Now I just need a big linux fella to rebuild the kernel and stick the /2 into the sfcapd daemon

From: Nick Hilliard [mailto:nick at foobar.org]
Sent: Monday, August 28, 2017 5:26 PM
To: Nick Cutting <ncutting at edgetg.com>
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] nfSen / nfDump

This message originated from outside your organization

Nick Cutting wrote:
> I didn’t seem to be able to use that command on a Nexus 9200 - the
> guide for the shell seems for the 9500 and the 3k?

N9K access instructions here:

> https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/6-x/programmability/guide/b_Cisco_Nexus_9000_Series_NX-OS_Programmability_Guide/b_Cisco_Nexus_9000_Series_NX-OS_Programmability_Guide_chapter_0101.html#concept_F5C3B0413B80410FBBDCC79F81BF086F<https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/6-x/programmability/guide/b_Cisco_Nexus_9000_Series_NX-OS_Programmability_Guide/b_Cisco_Nexus_9000_Series_NX-OS_Programmability_Guide_chapter_0101.html#concept_F5C3B0413B80410FBBDCC79F81BF086F>


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