A conceptual row of the cesMcastFlowQueryTable used to
setup retrieval criteria to search for IP multicast L3
flows on all switching engine entities in the device.
The actual search is started by setting the value of
cseFlowMcastQueryStatus to 'active'. Once a row becomes
active, values within the row cannot be modified, without
setting the associated RowStatus object to 'notInService'
first, or deleting and re-creating the row.