I am monitoring my Cisco routers WAN connection and have always noticed a trend where every 15 minutes or so the outbound traffic will read zero for one reading.

I have taken a screen shot so you can see what I mean.

http://s22.postimg.org/c318sqb4h/prtg.png

The dark blue line is the outbound traffic and as you can see every 15 minutes I see the issue happen. The issue doesn't seem to be happening with the green traffic in side.

Thanks, Jon

Article Comments

Hi,
the graph looks like this is a overflow issue with the SNMP counters. Please see this article on how to fix the same.
From the time you have applied the changes mentioned your graphs should start looking normal again.
Best regards


Oct, 2013 - Permalink

Looks like that did the trick. Thanks so much.


Oct, 2013 - Permalink