how to clear alert "snmp interface down trap" for interface which is admin shut down

[Marijana]

hi!
zabbix 6.4 on linux oracle 8 x64
I am using snmp polling and snmp traps for registering interface down or up state. I got request when interface is adminstrative shut down than for that interface ,alert interface down coming from snmp trap "interface down" to be automatically...

[hwtzbh]

Hi,
I've created a simple item & trigger to notify if a directory was got too big within the last 5 minutes. Trigger seems to be working, but I cannot find where do I set the trigger clear after acknowledgment. Is it possible to set the trigger to be clear (after ack) after X minutes?