Hello.
I've not used CnTWaLK before, and am finding it not working as
expected. I'm looking for some clues as to why.
I'm running RHEL 6.0 and MRTG 2.16.2 (actually RH's "current"
2.16.2-5 FWIW). I have a CAPWAP controller managing some
lightweight 802.11 access points, and am looking to track
the count of 802.11 clients the controller knows about. There
aren't very many, as the controller is new and still under test.
From snmpwalk, I can see one client for the last while, since
before I set up MRTG monitoring.
joe(user)43: snmpwalk capwap 1.3.6.1.4.1.9.9.599.1.3.1.1.6
Did not find 'cldRegulatoryDomain' in module CISCO-LWAPP-DOT11-MIB
(/usr/share/snmp/mibs/CISCO-LWAPP-AP-MIB.my)
CISCO-LWAPP-DOT11-CLIENT-MIB::cldcClientProtocol.'P. ...' = INTEGER: dot11n24(6)
joe(user)44:
I'ld expect MRTG to give me the same result, using the following
options and target specification.
Options[_]: gauge,growright,nopercent,noo
Target[capwap-dot11-clients]:
CnTWaLK1.3.6.1.4.1.9.9.599.1.3.1.1.6&CnTWaLK1.3.6.1.4.1.9.9.599.1.3.1.1.6:public@capwap
However, dumping the relevant RRD file shows
<!-- 2013-06-17 12:05:00 IST / 1371467100 --> <row><v> NaN </v><v> NaN
</v></row>
<!-- 2013-06-17 12:10:00 IST / 1371467400 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 12:15:00 IST / 1371467700 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 12:20:00 IST / 1371468000 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 12:25:00 IST / 1371468300 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 12:30:00 IST / 1371468600 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 12:35:00 IST / 1371468900 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 12:40:00 IST / 1371469200 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 12:45:00 IST / 1371469500 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 12:50:00 IST / 1371469800 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 12:55:00 IST / 1371470100 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 13:00:00 IST / 1371470400 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 13:05:00 IST / 1371470700 --> <row><v> 0.0000000000e+00 </v><v>
0.0000000000e+00 </v></row>
<!-- 2013-06-17 13:10:00 IST / 1371471000 --> <row><v> 3.9333333333e-01 </v><v>
3.9333333333e-01 </v></row>
<!-- 2013-06-17 13:15:00 IST / 1371471300 --> <row><v> 1.0000000000e+00 </v><v>
1.0000000000e+00 </v></row>
as if MRTG hadn't noticed for about an hour.
Since I took that extract, MRTG is now showing zero again, even though
snmpwalk continues
to show one client.
Can anyone suggest what I might be missing, other than an upgrade to a
really current
release of MRTG?
Thanks in anticipation and best regards,
Niall O'Reilly
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