Re: [mrtg] Monitoring trunk info on brocades

Thanks for the feedback. I'm new to MRTG and still have a bit of a learnin=
g curve. The output of the snmpwalk command is in hex, like:

bcsi.commDev.fibrechannel.fcSwitch.sw.swTrunk.swTr unkGrpTable.swTrunkGrpEnt=
ry.swTrunkGrpRx.1 : OCTET STRING- (hex): length =3D 8
0: 00 00 00 01 d1 ab 4c 8b -- -- -- -- -- -- -- -- ......L.......=
...
bcsi.commDev.fibrechannel.fcSwitch.sw.swTrunk.swTr unkGrpTable.swTrunkGrpEnt=
ry.swTrunkGrpRx.2 : OCTET STRING- (hex): length =3D 8
0: 00 00 00 00 00 00 1f ec -- -- -- -- -- -- -- -- ..............=
...

I am thinking that I need to use the ConversionCode parameter and convert t=
he hex input string into an integer. But I'm having a problem figuring thi=
s out. When I try to display the input string using a simple conversion co=
de:

sub Hex2Dec {
my $hex =3D $_[0];
print "HEX: $hex\n";
}

The output of the mrtg command is:

HEX: =A8=FA-
HEX: |=D0

I obviously can't parse this. Not surprisingly, the output string using a =
different OID that is working shows integer values in the output. So what =
am I missing? Is there a parameter I need to pass to the mrtg.cfg file?

-----Original Message-----
From: Daniel J McDonald [mailto:dan.mcdonald@austinenergy.com]
Sent: Thursday, April 17, 2008 4:23 PM
To: Barton Wold
Subject: Re: [mrtg] Monitoring trunk info on brocades

On Thu, 2008-04-17 at 14:57 -0500, Barton Wold wrote:
> I have recently setup snmp monitoring via MRTG to graph the read/write
> I/O on my brocade 48k and 24k. However, now I would like to use the
> SNMP OID for swTrunkGrpTx and swTrunkGrpRx so I can gather info on
> trunk throughput. I get successful output from the snmpwalk command,
> but MRTG fails with:
>

You probably need to append an instance. If it works with *snmpget*, then =
it will work with mrtg.



--
Daniel J McDonald, CCIE #2495, CISSP #78281, CNX Austin Energy http://www.a=
ustinenergy.com

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