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Cisco snmp bandwidth



I have noticed recently that the snmp traffic graphs for my Cisco 7206VXR show continual dropouts. The graphs resemble something like a heartbeat and it shows up on all active interfaces, 4 DS3's and 2 GigE's. I was getting ready to upgrade from a NPE-G1 to a NPE-G2 so I figured I would wait to see if the upgrade changed anything but it did not. I would assume that if all my interfaces were losing all traffic every 10 to 15 minutes I would notice significant problems throughout my network but I'm not. Although I have not ruled out a hardware/software problem with the Cisco.

Is this possibly some sort of snmp configuration problem or possibly a buffer problem? I'm looking for any suggestions that may come to mind.

Thanks in advance, Kevin

cisco snmp traffic-loss

Created on Dec 7, 2012 3:17:47 AM

2 Replies



Hi Kevin,
as from your description, this might be a 32bit counter overflow issue. Please see this article which addresses this issue.
Did the mentioned steps help resolving the same?

Created on Dec 7, 2012 6:42:00 AM by  Konstantin Wolff [Paessler Support]



Selecting "Handle overflow values as valid results" solved the problem.

Thank you!

Created on Dec 7, 2012 2:34:08 PM

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