[rrd-developers] Re: Counter limitation
bweidlich at va.rr.com
Mon Oct 25 18:16:19 MEST 1999
Anyone know if Cisco routers support 64 bit counters for
ifInOctet and ifOutOctet data, and, if so, what the OIDs are?
We have a bunch of 155 Mpbs interfaces on Cisco 7xxx series
routers that I'm hitting every
2 minutes to avoid counter rollover, and I'll like to back down
to 15 minute polling.
Herndon, VA USA
> -----Original Message-----
> From: rrd-developers-bounce at list.ee.ethz.ch
> [mailto:rrd-developers-bounce at list.ee.ethz.ch]On Behalf Of Tobias
> Sent: Monday, October 25, 1999 2:47 AM
> To: Austin Oh
> Cc: rrd-developers at list.ee.ethz.ch
> Subject: [rrd-developers] Re: Counter limitation
> 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.
> *> Question
> *> 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
> *> Thanks.
> *> Best Regards,
> *> Austin Oh (Myoungsub Oh in korean)
> *> National Computerization Agency.
> *> --
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