Confirm icmppingloss expression

[phoeneous]

I'm just trying to create a simple item/trigger for ping loss above 25%.

Item:
Name - Packet Loss
Type - Simple check
Key - icmppingloss[,10,6000,,5000]
Type of information - Numeric (float)
Units - %

Trigger:
Name - Packet Loss above 25%
Expression - {Template Networking:icmppingloss.avg(300)}>25

So this means that, if in a 5 minute period when the packet loss is greater than 25%, trigger is enabled?

[phoeneous]

Bueller? Bueller?