Forces the snapshot state to active for all entries
of the ciscoSnapshotActivityTable whose
ciscoSnapshotIfIndex value is specified as parameter.
The interface associated with ciscoSnapshotIfIndex
must be a client interface.
Retrieval of this object will return the value of the
ciscoSnapshotIfIndex that was last forced into the
active state, or 0 if no interfaces have been forced into
the active state since the router was reset