[ClusterLabs] ethmonitor resource - for iface which does not exist yet - how?

[lejeczek]

hi guys

I wonder about an idea of 'ethmonitor' watching a net iface
which is of USB type. Such an iface which would physically
roam between nodes.
Would 'ethmonitor' work in such a case?
I've tried and the resource actually got started (small
two-node cluster) on the node which has USB iface physically
absent?! That must be wrong, right?
But if it's not and that how 'ethmonitor' works(the I got it
wrong) then what else would be best resource agent for such
a case of a USB net iface?

many thanks, L.