Hello.
I use SNMP discovery for interfaces monitoring, all works well except few vlans interfaces. I found that sometimes IF-MIB::ifHighSpeed OID give incorrect value as result triggers creates false alarms, for example CISCO 7606:
# snmpget -On -v 2c -c public 10.0.0.1 IF-MIB::ifHighSpeed.19
.1.3.6.1.2.1.31.1.1.1.15.19 = Gauge32: 1000
Let's check low speed OID:
# snmpget -On -v 2c -c public 10.0.0.1 IF-MIB::ifSpeed.19
.1.3.6.1.2.1.2.2.1.5.19 = Gauge32: 1000000000
But when i look at bps rate i see over 10Gbit/s:
# snmpget -Ov -v 2c -c public 10.0.0.1 IF-MIB::ifDescr.19;snmpget -Ov -v 2c -c public 10.0.0.1 IF-MIB::ifHCInOctets.19;sleep 300;snmpget -Ov -v 2c -c public 10.0.0.1 IF-MIB::ifHCInOctets.19
STRING: Vlan5
Counter64: 34552407486544591
Counter64: 34552933144803300
Zabbix poll interfaces every 300 sec too, after calculations i have same result:
(34552933144803300 bytes -34552407486544591 bytes)*8 bit/300 sec/(10^6 bit per Megabit)
14017.55 Mbps
I understand that it looks like a problem of cisco gear, but may be someone solved problem like that or could recommend me a way how to handle it correctly.
Thanks.
I use SNMP discovery for interfaces monitoring, all works well except few vlans interfaces. I found that sometimes IF-MIB::ifHighSpeed OID give incorrect value as result triggers creates false alarms, for example CISCO 7606:
# snmpget -On -v 2c -c public 10.0.0.1 IF-MIB::ifHighSpeed.19
.1.3.6.1.2.1.31.1.1.1.15.19 = Gauge32: 1000
Let's check low speed OID:
# snmpget -On -v 2c -c public 10.0.0.1 IF-MIB::ifSpeed.19
.1.3.6.1.2.1.2.2.1.5.19 = Gauge32: 1000000000
But when i look at bps rate i see over 10Gbit/s:
# snmpget -Ov -v 2c -c public 10.0.0.1 IF-MIB::ifDescr.19;snmpget -Ov -v 2c -c public 10.0.0.1 IF-MIB::ifHCInOctets.19;sleep 300;snmpget -Ov -v 2c -c public 10.0.0.1 IF-MIB::ifHCInOctets.19
STRING: Vlan5
Counter64: 34552407486544591
Counter64: 34552933144803300
Zabbix poll interfaces every 300 sec too, after calculations i have same result:
(34552933144803300 bytes -34552407486544591 bytes)*8 bit/300 sec/(10^6 bit per Megabit)
14017.55 Mbps
I understand that it looks like a problem of cisco gear, but may be someone solved problem like that or could recommend me a way how to handle it correctly.
Thanks.