Controls whether a channel is expected to be terminated on
this ETS TTPs for the member interfaces or not. This value
can only be set if the mode (ethEtsMode) is multicast.
true(1). A channel is expected to terminate. If a channel
is not terminating, then this is regarded as an anomaly.
false(2). A channel is not expected to terminate. Absence
of a terminating channel is considered to be correct.
This value of this object is inherited from the
ethEtsSnkExpectChannel of the first interface added as a
member. Writing to this object updates the value of
ethEtsSnkExpectChannel of all the member interfaces.