The number of seconds to wait before repeating a ping test
as defined by the value of the various objects in the
corresponding row.
A single ping test consists of a series of ping probes.
The number of probes is determined by the value of the
corresponding pingCtlProbeCount object. After a single
test is completed the number of seconds as defined by the
value of pingCtlFrequency MUST elapse before the
next ping test is started.
A value of 0 for this object implies that the test
as defined by the corresponding entry will not be
repeated.