'parents' and network latency

[Rainer]

Hello,

Let's assume I have a "deep" network topology (with many parent hosts above 
the Nagios box), such as:

Nagios Server => Switch 01 => Switch 02 => Firewall => Packet Shaper => 
Router => ...

When the 'parents' directive is properly setup and "Switch 01" goes down, 
check-host-alive tells me it went down, and supresses notifications for all 
the other hosts.
Now, if "Switch 01" if heavely loaded and my fping service finds out it has 
a 500ms rta, all other hosts above it (switch 02, firewall etc) will have 
response times equal or bigger than 500ms.
My question is, in this scenario, how can I supress critical messages from 
the fping service regarding all other hosts which are slow because of 
switch 01 ? (having fping figure out that, since the host above it is slow, 
it doesn't need to notify me about all other hosts)
Perhaps this could be implemented in a future Nagios version (an option in 
nagios.cfg such as "apply_parents_directive_to_network_latency")

PS: This could be accomplished with service dependency (maybe?), but it 
wouldn't be practical since I would have to create several dependency 
checks for each parent host, which would make it really hard to maintain.

Regards,
Rainer Alves
Unisys Brazil 



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