How to config trigger raise problem when receive 2 fail value consecutive?

[huumq00731]

I have an item with Update interval = 3m (minutes), Fail value: 0, True value: 1
I want to create a trigger raise problem when receive 2 fail value consecutive, but don't care about the values that fire previous problem.
for example:

• at 3m Value is False: 0=> Don't raise problem here
• at 6m Value is False: 0 => Raise problem here
• at 9m Value is False: 0 => Don't raise problem here (because the previous value raised a problem)
• at 12m Value is False: 0 => Raise problem here
• at 15m Value is False: 0 =>Don't raise problem here
• at 18m Value is True: 1 =>Don't raise problem here
• at 21m Value is False: 0=> Don't raise problem here
• at 24m Value is False: 0 => Raise problem here
• at 27m Value is False: 0 => Don't raise problem here (because the previous value raised a problem)
• at 30m Value is False: 0 => Raise problem here
• at 33m Value is False: 0 =>Don't raise problem here (because the previous value raised a problem)

My current trigger Expression is:
{local:icmpping[example.intra.sharedom.net].sum(#2)}=0
But it did not worked correctly:

• at 3m Value is False: 0=> problem don't raise here
• at 6m Value is False: 0 => problem raise here
• at 9m Value is False: 0 => problem raise here(But i don't want)
• at 12m Value is False: 0 => problem raise here
• at 15m Value is False: 0 => problem raise here(But i don't want)
• at 18m Value is True: 1 => problem don't raise here
• at 21m Value is False: 0=> problem don't raise here
• at 24m Value is False: 0 => problem raise here
• at 27m Value is False: 0 => problem raise here(But i don't want)
• at 30m Value is False: 0 => problem raise here
• at 33m Value is False: 0 =>problem raise here(But i don't want)

Any body help me please!

[huumq00731]

Try this:

{TRIGGER.VALUE}=0 & {local:icmpping[example.intra.sharedom.net].sum(#2)}=0

Thanks for your support! it working!
trigger Expression:

 
 {TRIGGER.VALUE}=0 and {local:icmpping[example.intra.sharedom.net].sum(#2)}=0

trigger recovery Expression:

 
 {local:icmpping[example.intra.sharedom.net].[B]last([/B][B])[/B]}=1 or ({local:icmpping[example.intra.sharedom.net].[B]last([/B][B])[/B]}=0 and {TRIGGER.VALUE}=1)