@Gertjan said in Help is needed with understanding of Trigger level documentation:
When the WAN cable is ripped out, or the router (or modem) up stream goes down, the NIC will signal a LINK DOWN.
No need for pinger to determine if ICMP packets come back, and measure the time. They won't come back, they can't even been send away.
That's an event that will take down the gateway in the routing table.
pinger, can detect if there is an upstream problem, and uses ICMP packets to detect if the upstream path is available. If it is to bad, the gateway is likewise considered as down.
And this is exactly for the case when "Member Down" is selected, right? So it triggers to the "down" state when ping is bad, despite the fact that the link associated to this interface is "up"? Someone actually verified this by an experiment? I cannot do this right now because I have no test environment, just production.