Strange Counter behaviour

Tiago Faro Pedroso <[email protected]> Thu, 17 Nov 2005 11:11:07 +0000

Newsgroups	gmane.network.net-snmp.user
Message-ID	<[email protected]>

Hello,

I'm having a very strange behaviour on some SNMP counters in some of our
Switches (mostly Cisco Catalyst, 5505, etc), notice the value of ifOutOctets
at 18:20:

Wed Nov 16 18:00:01 WET 2005
IF-MIB::ifInOctets.43 = Counter32: 1956315072
IF-MIB::ifOutOctets.43 = Counter32: 1403796491
IF-MIB::ifHCInOctets.43 = Counter64: 14841360208
IF-MIB::ifHCOutOctets.43 = Counter64: 151727699584
Wed Nov 16 18:10:01 WET 2005
IF-MIB::ifInOctets.43 = Counter32: 1956910888
IF-MIB::ifOutOctets.43 = Counter32: 1404454531
IF-MIB::ifHCInOctets.43 = Counter64: 14841812887
IF-MIB::ifHCOutOctets.43 = Counter64: 151728315916
Wed Nov 16 18:20:01 WET 2005
IF-MIB::ifInOctets.43 = Counter32: 1958126827
IF-MIB::ifOutOctets.43 = Counter32: 1958097485
IF-MIB::ifHCInOctets.43 = Counter64: 14843028715
IF-MIB::ifHCOutOctets.43 = Counter64: 160871889824
Wed Nov 16 18:30:01 WET 2005
IF-MIB::ifInOctets.43 = Counter32: 1958291757
IF-MIB::ifOutOctets.43 = Counter32: 1959103591
IF-MIB::ifHCInOctets.43 = Counter64: 14843193645
IF-MIB::ifHCOutOctets.43 = Counter64: 160872912637

Somehow the ifOutOctets counter seams to have been overwritten with the
ifInOctets value.

Any tips on a possible solution ?

Thanks in advance

Best regards

PS: Using ifHCOctets is not a possibility (was allready tested with bad
results).
--
Tiago Faro Pedroso
[email protected]