[Linux-cluster] CS4/ "Monitoring the health of remote power switch" ?

[Alain Moulle]

Hi

In the CS4 Red Hat Documentation chapter
"Red Hat Cluster Manager Overview" , it
is written :
"To monitor the health of the other nodes,
each node monitors the health of remote
power switch if any ,etc."

Is it really possible ?
Where could we configure this ?
Or is it hidden in the CS4 ,I mean
is it automatically done, based on the
fence lines information in cluster.conf,
and if so what exactly is done ? (periodic
ping on the IP adr of remote power switch )

Thanks if you can clarify this point for me.

Alain