Trigger to compare the last and previous values

[perrfect]

Hi.
I want to compare speed on network interface.
So i need the trigger which help me compare speed on interface witch was before and is now.
And the trigger should resolve a problem, when the speed became the previous one.
Thank you.

[tim.mooney]

I can see multiple different ways you could solve this problem with Zabbix trigger functions.

I think if you read the overview page for trigger functions: https://www.zabbix.com/documentation...sion#operators
And then read the list of trigger functions themselves: https://www.zabbix.com/documentation...gers/functions

That will probably provide multiple different ways you can solve this monitoring need.