Trivial Steps to reproduce:
- Create "SNMP Interface #1" (working) - chosen DEFAULT
- Create "SNMP Interface #2" (not working)
- Create "SNMP Item A" for "SNMP Interface #1" (expected to work)
- Create "SNMP Item B" for "SNMP Interface #2" (expected not working)
Result:
- SNMP Agent status on host is flapping from green to red and all snmp items are not working.
Even on default "SNMP Interface #1".
Expected:
- "SNMP Item A" for "SNMP Interface #1" is always working.
Before upgrade on Zabbix 3.4 everything worked fine.
Logs from Zabbix Server:
23326:20200622:124659.032 SNMP agent item "SNMP.ITEM.B" on host "MYSNMPHOST" failed: first network error, wait for 15 seconds 23330:20200622:124759.072 temporarily disabling SNMP agent checks on host "MYSNMPHOST": host unavailable 23324:20200622:125100.226 enabling SNMP agent checks on host "MYSNMPHOST": host became available 23330:20200622:125159.222 SNMP agent item "PhCard" on host "MYSNMPHOST" failed: first network error, wait for 15 seconds 23328:20200622:125247.247 temporarily disabling SNMP agent checks on host "MYSNMPHOST": host unavailable 23322:20200622:125357.297 enabling SNMP agent checks on host "MYSNMPHOST": host became available 23311:20200622:125447.286 SNMP agent item "SNMP.ITEM.B" on host "MYSNMPHOST" failed: first network error, wait for 15 seconds 23331:20200622:125547.293 temporarily disabling SNMP agent checks on host "MYSNMPHOST": host unavailable 23321:20200622:125857.544 enabling SNMP agent checks on host "MYSNMPHOST": host became available 23334:20200622:125958.527 SNMP agent item "SNMP.ITEM.B" on host "MYSNMPHOST" failed: first network error, wait for 15 seconds 23328:20200622:130313.452 resuming SNMP agent checks on host "MYSNMPHOST": connection restored