[mrtg-developers] SNMP ifInOctets and IfOutOctets

[madan kumar]

 Dear All,
  I have a question on SNMP but I think some one on this list can help me
 out.

 I am developing an app something similar to MRTG, I need to monitor a
switch
 and get the number of bits sent and recieved over a period. I use
ifInOctets
 and ifOutOctets of MIB-II to fetch this info from the SNMP server. There
are
 lots of routers and switches which have 32 bit counters and I query them
 over a period of 5 min to fetch these values. However if these lines are
too
 fast the counters roll over i.e they reach the max value 2^32 and then
reset
 back to 0 and so on. If rollover happens only once within the 5 min
 duration, I can calculate the bytes sent/recieved but if it occurs more
than
 once during this 5 min period, how does MRTG handle this situation.
I know my switch doesn't support 64 bit counters such as ifHCInOctets and
ifHCOutOctets.

 Any hints or leads would be helpful.

 Best Regards
 Madan


--
Unsubscribe mailto:mrtg-developers-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:mrtg-developers-request at list.ee.ethz.ch?subject=help
Archive     http://www.ee.ethz.ch/~slist/mrtg-developers