Zabbix SNMP issues

[jay5c]

Hello,

I am getting issues with SNMP on zabbix.
I am currently using 3.0


Below are the logs

30976:20160418:121933.197 SNMP agent item "cpmCPUTotal1minRev" on host "XXXXXX" failed: first network error, wait for 5 seconds
30976:20160418:121933.200 resuming SNMP agent checks on host "XXXX": connection restored
30976:20160418:121936.203 resuming SNMP agent checks on host "XXXXX": connection restored
30976:20160418:122036.230 SNMP agent item "ASYNCOS_MAIL_MIB__keySecondsUntilExpire.6" on host XXXXX failed: first network error, wait for 5 seconds
30976:20160418:122106.235 resuming SNMP agent checks on host "XXXXX": connection restored
30976:20160418:122206.291 SNMP agent item "cpmCPUTotal1minRev" on host "XXXXX" failed: first network error, wait for 5 seconds


Thank You


Jay

[abevern]

Is your network busy?
Is your host busy?
Are you checking a lot of items?

SNMP is typically over UDP and packets can and do get lost when things get busy at a network level.

Depending on the device you're monitoring, SNMP responses can be a low priority, so may be ignored at times of high load.

I monitor a lot of switches at a port level, so many many metrics available. I try to limit what I'm retrieving to things that may be really useful. Still, there are times during traffic burst when I don't see some metrics from some ports.