[rrd-developers] Re: Counter limitation
oetiker at ee.ethz.ch
Mon Oct 25 08:46:54 MEST 1999
Today you sent me mail regarding [rrd-developers] Counter limitation:
*> Dear Developers,
*> I have adopted a RRD tool with mrtg.
*> But, i notice that i can't see actual utilization
*> when the utilization of link is over about 120Mbps.
*> We use the Cisco router with high bandwidth link,
*> 155Mbps ATM, FastEtherChannel, etc.
*> In my opinion, the problems are our router which uses
*> the 32bit counter.
*> Therefore, i have modified some code of mrtg and
*> decreases the interval to 1 minute.
*> It' looks fine. However, this is not the solutions because of
*> 32bit counter.
*> i) How to use a MRTG or RRD when physical utilization is over 120Mbps ?
*> How to see the utilization ?
exactly the way you did it ...
*> ii) Is it possible to count the counter wrap in SNMP world ?
*> If so, please let me know.
not to my knowledge
*> iii) Finally, how we can see the physical utilization as though the link
*> is over 200Mbps or 1Gbps ?
you realy need to get into 64bit counters ... some devices support this now
*> Best Regards,
*> Austin Oh (Myoungsub Oh in korean)
*> National Computerization Agency.
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