Diff(0) in triggers

[simonquentel]

Hi everyone, I am using diff(0) function in zabbix trigger to avoid having a trigger turned on several times by the same information.

To be more accurate, I have a trigger for SNMP traps for a given source and I want to avoid triggering several times the same message.

So what I do is using {MY_HOST:snmptrap[MY_REGEXP].diff(0)}>0

I have the feeling that it is not working for the very first trap.

Is there another function I could use that ensures the first trap also turn the trigger on?

Thank you in advance,

Simon

[simonquentel]

Any suggestion?

Simon

[simonquentel]

Can i Use :
({MY_HOST:snmptrap[MY_REGEXP].diff(0)}>0) | ({MY_HOST:snmptrap[MY_REGEXP].last(#2)}= null)