SNMP Interface data on X4100 machines
2007-12-25 6:23:00
graphs are frequently nonsensical, as some Sun platforms don't seem to
report usage correctly. Has anyone else seen this kind of thing, and is
there an answer?
On a SunFire T1000, which is a 64 bit SPARC running Solaris 10, I get:-
Code:
# snmpwalk -v 1 -c public localhost .1.3.6.1.2.1.2.2.1.16; sleep 10;
snmpwalk -v 1 -c public localhost .1.3.6.1.2.1.2.2.1.16
IF-MIB::ifOutOctets.1 = Counter32: 0
IF-MIB::ifOutOctets.2 = Counter32: 1130444817
IF-MIB::ifOutOctets.3 = Counter32: 448
IF-MIB::ifOutOctets.1 = Counter32: 0
IF-MIB::ifOutOctets.2 = Counter32: 1179165808
IF-MIB::ifOutOctets.3 = Counter32: 448
That works out to a data rate of about 37Mbps, which is pretty much what
I'm expecting from this box. On a SunFire X4100 (64 bit Opteron) which
is part of the same cluster, I get:-
Code:
# snmpwalk -v 1 -c public localhost .1.3.6.1.2.1.2.2.1.16; sleep 10;
snmpwalk -v 1 -c public localhost .1.3.6.1.2.1.2.2.1.16
IF-MIB::ifOutOctets.1 = Counter32: 0
IF-MIB::ifOutOctets.2 = Counter32: 957267
IF-MIB::ifOutOctets.3 = Counter32: 656354
IF-MIB::ifOutOctets.1 = Counter32: 0
IF-MIB::ifOutOctets.2 = Counter32: 957697
IF-MIB::ifOutOctets.3 = Counter32: 656354
which gives a data rate of < 1Kbps on interface 2, and zero on 3.
Looking at the traffic to that host from my load balancer, I should be
seeing about 20-25Mbps on each interface. Neither machine supports the
ifXTable (both are running the Solaris SNMP daemon, which is actually
just net-snmpd), so I was hoping someone else here might have
encountered this problem in the past and know a way round it.
Mike
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