<![CDATA[Method to see every dropped packet / failed poll?]]>Occasionally I have a need to troubleshoot devices with very rapid pings/polls (at least once a second, ideally every 100ms) and need to be able to see every dropped packet. I want to override the default behavior on that DCI so if it doesn't receive a response within a set period of time, it doesn't just ignore it and try again on the next poll. It will still log the result (simple transform script to show -1 or some other value would be fine) so it easily stands out on a line graph and in the history

Is this possible to do?

]]>https://forum.netxms.org/topic/7748/method-to-see-every-dropped-packet-failed-pollRSS for NodeFri, 13 Nov 2026 06:23:04 GMTWed, 06 Sep 2023 14:24:40 GMT60<![CDATA[Reply to Method to see every dropped packet / failed poll? on Thu, 07 Sep 2023 10:53:46 GMT]]>Transformation script is launched when data collection returns some value. As far as I understand, it will not be launched if data collection returned error.

]]>https://forum.netxms.org/post/32733https://forum.netxms.org/post/32733Thu, 07 Sep 2023 10:53:46 GMT<![CDATA[Reply to Method to see every dropped packet / failed poll? on Thu, 07 Sep 2023 01:10:13 GMT]]>Alternatively, can a transform script be used? I'm not sure how the polling engine works but if I did an SNMP poll every second, can I use something simple like

if ($1 == null) return -1;
return 1;

Will null (or any other value) be returned in the case of a failed poll? Or does NetXMS not consider it 'polled' until a response comes back and thus will not log anything in history unless it actually receives a result

]]>https://forum.netxms.org/post/32732https://forum.netxms.org/post/32732Thu, 07 Sep 2023 01:10:13 GMT<![CDATA[Reply to Method to see every dropped packet / failed poll? on Wed, 06 Sep 2023 14:31:12 GMT]]>Not really, system was not designed for this kind of usage without external tools.

Depending on your task, you can script around nxget/nxsnmpget/nxsnmpget.

]]>https://forum.netxms.org/post/32729https://forum.netxms.org/post/32729Wed, 06 Sep 2023 14:31:12 GMT