The value of tBgpInstanceRapidWithdrawal specifies whether the
delay (minimum route advertisement) on sending BGP withdrawals has to
be disabled. Normal route withdrawals may be delayed up to the minimum
route advertisement to allow for efficient packing of BGP updates.
When the value of tBgpInstanceRapidWithdrawal is 'true' the delay on
sending BGP withdrawals is disabled. By default, the delay exists,
which is the normal behavior for rapid withdrawal processing.