[j-nsp] netflow sampling problem in 10.2

Chris Tracy ctracy at es.net
Thu May 19 10:30:14 EDT 2011


Hi Matjaž,

Are you doing RE-based sampling, or using an MS-DPC?  Can you post a sanitized version of your config?  You might want to look at some of the previous posts to the list on this topic, such as:

   https://puck.nether.net/pipermail/juniper-nsp/2010-July/017293.html

This thread was specific to NetFlow v9 using an MS-DPC though...

-Chris


On May 19, 2011, at 9:05 AM, Matjaž Straus Istenič wrote:

> Hi there,
> 
> we've recently upgraded our MX routers to 10.2R3.10 (from 9.6). After that, netflow sampling based on firewall filters does not export any packets, not even to a local file. Total silence! We are sampling IPv4 packets ingress on all interfaces. Firewall filters work fine. The corresponding firewall filter terms still count bytes and packets, but no samples are seen.
> 
> Have some of you run into similar problems with sampled netflow on 10.2? Release notes do not mention anything similar.
> 
> Kind regards,
> 	Matjaž
> 
> ---
> Matjaž Straus Istenič, Arnes
> http://www.arnes.si
> 
> Tel: +386 1 4798-877
> Fax: +386 1 4798-878
> matjaz.straus at arnes.si
> MS6745-RIPE
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--
Chris Tracy <ctracy at es.net>
Energy Sciences Network (ESnet)
Lawrence Berkeley National Laboratory




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