[rrd-users] Re: overhead of value

[Mauricio Doria de Camargo]

I belive my problem will be solved using ifHC* (64bits counters from
SNMPv2c).
I don't get to gather values from ifHC* because i will need upgrade IOS
version of cisco switches. I found a Caveat from Cisco about ifHCinOctects
and out. See below:

------------------------
Resolved Caveats-Cisco IOS Release 12.0(14)ST
All caveats listed in this section are resolved in Cisco IOS Release
12.0(14)ST and Release 12.0(14)ST1. This section describes severity 1, 2,
and selected severity 3 caveats only.

Basic Systems

CSCdr16320-High Capacity counters are always 0 e.g ifHCInOctets /
ifHCOutOctets

High capacity counters in the IF-MIB ifXTable display 0s for all interfaces
that do not support them.
------------------------

Workaround:
Now I'm gathering the values on two minutes interval using SNMPv1 (32bits
counters) and I got right values, so the graphic was plotted correctly.

Tks fou your help!
Sorry abaout my english!!!
Best Regards

mauric:o)


> -----Original Message-----
> From: rrd-users-bounce at list.ee.ethz.ch
> [mailto:rrd-users-bounce at list.ee.ethz.ch]
> Sent: sexta-feira, 3 de agosto de 2001 16:40
> To: Keith McCallion
> Cc: rrd-users at list.ee.ethz.ch
> Subject: [rrd-users] Re: overhead of value
>
>
>
> At 11:04 AM 8/3/01 -0700, you wrote:
>
> > > I have a problema to display date over 120Mb on
> Gigaethernet ports.
> >
> >You are using regular Interface counters rather than the
> 64-bit counters
> >when you are gathering your data to insert it into the RRD.
> In MRTG you
> >just have to specify that you want to use SNMP v2 and it will
> >automatically use the HC counters.
>
> I wonder if this holds true if you are trying to graph % used and
> absolute bytes used ( 2 separate graphs) on a big hard drive.
> I'm trying to graph these things on a 40GB drive and would like
> to have it correct B4 I switch the disk usage graphs over to RRD.
> Or does it simply depend on the size of hr.StorageAllocationUnits ?
> Perhaps SNMP v1 versus SNMP v2 is completely immaterial to
> this situation?
>
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