Trigger Alarm based on interface Alias

[joetorr]

I am currently new to Zabbix. At the moment I have my server running and have many nodes polling information already. Now I am trying to add some new alarms. So this is my scenario: I have many MikroTik nodes located in different locations. Now, many interface alias/description would match from all the different locations. For example ether1-"To LAN". So now I would like to do an alarm based on that alias/description like if the bandwidth has surpassed 80M on any interface that has description "To LAN" then an alarm should be triggered. Has anyone ever done anything like this? So far I have not found any forum/document which such alarm nor my attempts are working. Any tip or advise would be great. Thanks.

[joetorr]

Good Morning, I forgot to add what I have tried so far:

{Template Module Interfaces SNMPv2:ifAlias.[{#IFALIAS}].str(AP1)}=1

I have been messing around with the triggers with something like the above trigger but always keep getting an error of incorrect key or host not found.