| Description | The rate of packet drops of IP version cipUrpfIfIpVersion
packets due to URPF on the interface.
This object is the average rate of dropping over the most
recent interval of time. The rate is computed by dividing
the number of packets dropped over an interval by the
interval time in seconds. Each time the drop rate
is computed, and at system startup, a snapshot is taken
of the latest value of cipUrpfIfDrops. Subtracting from this
the snapshot of cipUrpfIfDrops at the start of the current
interval of time gives the number of packets dropped.
The drop rate is computed every cipUrpfComputeInterval
seconds.
When drop rate is computed, if time since the creation of
a row in cipUrpfIfMonTable is less than
cipUrpfDropRateWindow, the value of cipUrpfIfDrops is
divided by the time since row was created.
After the row has been in existence for
cipUrpfDropRateWindow, when drop rate is computed, the
number of packet drops counted on the interface from
interval start time to the computation time is divided
by cipUrpfDropRateWindow.
Changes to cipUrpfDropRateWindow are not reflected in this
object until the next computation time.
The rate from the most recent computation is the value
fetched until the subsequent computation is performed. |