[mrtg] Missing values on poll/write.

[Jon Nistor]

Howdy,

I've run into a very very big stumper that I can't seem to figure out.
I've got a 6006 I'm polling.  Its gig and fe ports except that #6/41 is
the only port thats giving me grief so far. (its FE)

Its a new port thats never been used before so the counters were 0.
Plugged the cable into it and moved the pointer over to that port, thought
it was fine then got up in the morning and realize it was only logging 1
value, outgoing.

This is a snipit from the rrd file (from more testing):
  <!-- 2004-01-26 12:30:00 EST / 1075138200 --> <row><v> NaN </v><v> NaN </v></row>
  <!-- 2004-01-26 12:35:00 EST / 1075138500 --> <row><v> NaN </v><v> NaN </v></row>
  <!-- 2004-01-26 12:40:00 EST / 1075138800 --> <row><v> NaN </v><v> NaN </v></row>
  <!-- 2004-01-26 12:45:00 EST / 1075139100 --> <row><v> NaN </v><v> NaN </v></row>
  <!-- 2004-01-26 12:50:00 EST / 1075139400 --> <row><v> NaN </v><v> NaN </v></row>
  <!-- 2004-01-26 12:55:00 EST / 1075139700 --> <row><v> NaN </v><v> 8.7832688040e+05 </v></row>
  <!-- 2004-01-26 13:00:00 EST / 1075140000 --> <row><v> NaN </v><v> 8.7511844890e+05 </v></row>
  <!-- 2004-01-26 13:05:00 EST / 1075140300 --> <row><v> NaN </v><v> 9.4455772902e+05 </v></row>
  <!-- 2004-01-26 13:10:00 EST / 1075140600 --> <row><v> NaN </v><v> 8.8721144227e+05 </v></row>
  <!-- 2004-01-26 13:15:00 EST / 1075140900 --> <row><v> NaN </v><v> 9.2134710196e+05 </v></row>
  <!-- 2004-01-26 13:20:00 EST / 1075141200 --> <row><v> NaN </v><v> 9.3205119813e+05 </v></row>
  <!-- 2004-01-26 13:25:00 EST / 1075141500 --> <row><v> NaN </v><v> 8.8311643436e+05 </v></row>

When I poll the interfaces manually (script polling every 10 seconds):
nistor at eh ~# sh file.sh
IF-MIB::ifHCInOctets.58 = Counter64: 944515405259
IF-MIB::ifHCOutOctets.58 = Counter64: 106165896660
IF-MIB::ifHCInUcastPkts.58 = Counter64: 1189833873
IF-MIB::ifHCOutUcastPkts.58 = Counter64: 503025605

IF-MIB::ifHCInOctets.58 = Counter64: 944534971874
IF-MIB::ifHCOutOctets.58 = Counter64: 106168372771
IF-MIB::ifHCInUcastPkts.58 = Counter64: 1189856811
IF-MIB::ifHCOutUcastPkts.58 = Counter64: 503037567

IF-MIB::ifHCInOctets.58 = Counter64: 944558847014
IF-MIB::ifHCOutOctets.58 = Counter64: 106171468865
IF-MIB::ifHCInUcastPkts.58 = Counter64: 1189883314
IF-MIB::ifHCOutUcastPkts.58 = Counter64: 503051169

IF-MIB::ifHCInOctets.58 = Counter64: 944583105612
IF-MIB::ifHCOutOctets.58 = Counter64: 106174553197
IF-MIB::ifHCInUcastPkts.58 = Counter64: 1189909544
IF-MIB::ifHCOutUcastPkts.58 = Counter64: 503063324

Counters appear to be fine.

I've rm'd the rrd file and had mrtg recreate the file.  I ended up with
the same results as pasted above with the incoming not registering.

I thought maybe it was an snmpget problem from mrtg so I went to look at
the tcpdump transactions and they appear to be fine, values are being
returned in the packet.

Has anyone run into this kind of behaviour before?

sw:
 mrtg    2.10.13
 rrdtool 1.0.45
 os      freebsd 5.x


Thanks,

 ________
  Jon (nistor at snickers.org) - iioiiooo.oiiiiiio.oioiioio.ooooooio

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