Thanks much for the new "check network", very useful in 5.11, but a few minor issues...
1) Need a "check network" example in the sample monitrc
2) Your examples on your web site are missing a label (assume "with" is not the desired label" :-) )
check network with interface eth0
should be something like...
check network WAN with interface eth0
or I prefer the format...
check network WAN interface eth0
3) The "check network" link test is implicit, I would suggest it should not be. As such an interface can't be monitored without using the global email for the link status. You fixed the "check process" pid/ppid in 5.11 for the same reason.
It is confusing if there are implicit alerts and not all are specified in the config.