In one embodiment, a network comprises a plurality of nodes that
communicate with one another. A first node included in the plurality of
nodes generates a plan comprising a plurality of marker states. Each
marker state comprises a value for a property associated with the first
node. When the first node broadcasts information indicative of a given
marker state included in the plan, at least one node other than the first
node verifies the value of the property included in the given marker
state.