[collectd] Network plugin - ensuring delivery and local caching during network outages

[Mariusz Gronczewski]

Hi

For caching, network plugin would pretty much have to work over TCP,
because there is no realiable way to check if remote "target" of UDP
packets is up or down. And it would have to have option of saving
cache to disk when, for example u're monitoring 50 hosts and something
died and u will get replacement after few h'rs.. Buy yeah, it would be
very nice, even for stupid things like upgrading server version, or 5
min network outage, or server reset.

Regards,
Mariusz