Can we do this with SNMPCOLLECTOR, or do we have to use another probe like net_connect? Availability and Reachability only gives me units in pct, not state.
SNMPCollector expresses the reachability in percent because it does several attempts to get the value. That's more granular as you can define when you want to get alerted. You can decide to get an alarm when the reachability is 0 or when it is less than 100.
I think the availability is computed based on an implemented function availabilityWithSysUptime.This relies on the value of sysUptime and the interval between consecutive polls. There are no multiple attempts that get round up to the percentage value. The percentage value depends on the value of sysUptime and the interval between polls. Basically is the same system used in CA Performance Management.
There's an example here on how this is computed.
Correct. That's why I wasn't talking about availability but reachability. As in PM both metrics are present if I remember correctly.
Use net_connect for checking if device is PINGable or not.
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