Cisco Systems OL-16066-01 appendix Cir, 215

Appendix K Router Platform User Interface Reference

Quality of Service Policy Page

	• Quality of Service Policy Page, page K-199
	Field Reference
Table K-96	QoS Class Dialog Box—Policing Tab
Element		Description
Enable Policing		When selected, enables you to configure Class-Based Policing to control the
		maximum rate of traffic for this class. Security Manager uses a two-token
		bucket algorithm, which includes a defined violate action that is performed
		when neither bucket can accommodate the incoming packet.
		When deselected, disables all policing options for the selected QoS class.
CIR		The average data rate (also known as the committed information rate or
		CIR). You can define this amount by:
		• Percentage—Valid values range from 0 to 100% of the overall available
		bandwidth.
		• Bit/sec—Valid values range from 8000 to 2000000000 bits per second.
		In the token bucket algorithm, this rate represents the token arrival rate for
		filling both token buckets. Traffic that falls under this rate always conforms.
		Note When you configure Understanding Control Plane Policing,
		page 15-163, you must define the CIR in bits per second.
Conform Burst		The normal burst size, which determines how large traffic bursts can be
		before some traffic exceeds the rate limit. In the token bucket algorithm, it
		represents the full size of the first (conform) token bucket.
		The range of valid values is determined by the CIR:
		• When the CIR is defined by percentage—Valid values range from 1 to
		2000 milliseconds.
		• When the CIR is defined by an absolute value—Valid values range from
		1000-512000000 bytes.

	User Guide for Cisco Security Manager 3.2
OL-16066-01		K-215