For example(simply):
I have two devices. Between them i have link. on every devices i have service “ping”. when yes ping - device is green. when no ping- device is red.
i want when no ping to device - the color link to the device set red, when yes ping- the color link green.
how do it by function?
I’ve done something you need like this:
New Probe named Negativ-Ping, Typ is Logic, Typ is not, Probe to use is Ping.
(Here a small Screenshot of my Probe: http://free.v0n.de/11/f5b9574362f40c6167edfb808dcd19d6_1.png )