Stale means, they don’t answer within 1.5 times of your normal check interval (default 1 minute). Maybe you should investigate your hosts further with this in mind. What is the average round trip time for these hosts?
Stale means, they don’t answer within 1.5 times of your normal check interval (default 1 minute). Maybe you should investigate your hosts further with this in mind. What is the average round trip time for these hosts?