delayed ureachable authentication

[onokonem]

Hi,

I'm looking for a way to configure "delayed unreachable" trigger. The idea is simple: I would like to get an alert for host unreachable if it is unreachable for last 5 min.

My first hope was
{myHost:status.min(300)}=2
But this does not work. It is triggered in the same time as
{myHost:status.last(0)}=2

I found this problem was discussed almost 3 years ago.

http://www.zabbix.com/forum/showthread.php?t=75&highlight=status.min

But no solution is provided in this discussion.

Can anybody help me with this?

Thank you.