This object specifies if qos attribute for this
zone is enabled. If this object is set to 'true',
then qos attribute for this zone is enabled.
If this object is set to 'false', then qos
attribute for this zone is disabled.
If this attribute is enabled for this zone,
then only traffic with the configured priority
level will be allowed between the members of
this zone. The priority can be specified by means
of the corresponding instance of zoneQosPriority
object.