The minimum time between issuance of
cipUrpfIfDropRateNotify notifications for a
particular interface and packet forwarding type.
Notifications are generated for each interface and
packet forwarding type that exceeds the drop-rate.
When a Notify is sent because the drop-rate is
exceeded for a particular interface and forwarding
type, the time specified by this object is used to
specify the minimum time that must elapse before
another Notify can be sent for that interface and
forwarding type. The time is specified globally but
used individually.