Policer and bucket parameters

The following table shows which element parameters are supported by buckets and policers, and whether they are optional ($\circ$) or required ($\bullet$):

Parameter	bucket	policer
avrate	.	$\circ$/$\bullet$
burst	$\bullet$	$\bullet$/$\circ$
mpu	$\circ$	$\circ$
mtu	.	$\circ$
overflow	$\circ$	$\circ$
peakrate	.	$\circ$
rate	$\bullet$	$\bullet$

For policers, either avrate or burst must be present.

Parameter	Unit	Description
avrate	bps	Average policed rate
burst	Bytes	Burst size, typically $>=$ MTU
mpu	Bytes	Minimum policed unit
mtu	Bytes	Maximum transmission unit
overflow	bucket	Bucket to receive excess credit
peakrate	bps	Peak data rate
rate	bps	Sustainable data rate