When MRTG gets nothing back from its SNMP poll, it assumes the last reported
value; if it gets nothing back for several hours you see a horizontal line
on the graph.
This tells you that for several hours, MRTG was not getting SNMP data back
from the router. One possible cause is congestion on the link to that
router; since SNMP uses UDP it is highly likely to fail just when you most
need the data. CPU utilization on the target router is another possible
issue. Your MRTG box itself, or its connectivity, is yet another possible
culprit.
HTH,
doctorcisco
Silicon ... just fancy sand.
>Anyone know why the MRTG shape become horizontol for several hours suddenly
>even there was traffic?
>
>thanks.
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=18169&t=18091
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
