When during normal maintenance operation, if "reset counters interface pos" command is executed in NE80/NE40 routers, then we can see a spike in MRTG graph.
MRTG has this bug that whenever we reset counters of POS interface , a spike is shown in the graph indicating rapid rise in traffic. There is no problem in the router. The software for monitoring the bandwidth should be changed.
It is an MRTG/PRTG bug. If we use MRTG/PRTG software to view traffic of NE40, and it will spike when I reset counters but traffic of display interface is normal.