The last time that all the entries in the ccsFlapTable are
destroyed. There are several ways to destroy all the entries
in the ccsFlapTable. Setting the object ccsFlapClearAll to
true is one way, and the other way is through Command Line
Interface. This timestamp can be used to know when all the
entries in the ccsFlapTable are destroyed. The special value
of all '00'Hs indicates that the entries in the ccsFlapTable
have never been destroyed.