Cisco Systems QC-29 manual Configuring Traffic Shaping, Command or Action, Purpose, Example, QC-42

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR Software

How to Configure QoS Congestion Management on Cisco IOS XR Software

	Command or Action	Purpose
Step 7
	exit	Returns the router to global configuration mode.
	Example:
	RP/0/RP0/CPU0:router(config-pmap)# exit
Step 8
	interface type instance	Enters interface configuration mode, and configures an
		interface.
	Example:
	RP/0/RP1/CPU0:router(config)# interface POS
	0/2/0/0
Step 9
	service-policy {input output} policy-map	Attaches a policy map to an input interface or an output
		interface to be used as the service policy for that interface.
	Example:	• The traffic policy evaluates all traffic leaving that
	RP/0/RP0/CPU0:router(config-if)# service-policy	interface.
	output voice
Step 10
	end	Saves configuration changes.
	or	• When you issue the end command, the system prompts
	commit	you to commit changes:
		Uncommitted changes found, commit them before
	Example:	exiting(yes/no/cancel)?
	RP/0/RP0/CPU0:router(config-if)# end	[cancel]:
	or	– Entering yes saves configuration changes to the
	RP/0/RP0/CPU0:router(config-if)# commit
		running configuration file, exits the configuration
		session, and returns the router to EXEC mode.
		– Entering no exits the configuration session and
		returns the router to EXEC mode without
		committing the configuration changes.
		– Entering cancel leaves the router in the current
		configuration session without exiting or
		committing the configuration changes.
		• Use the commit command to save the configuration
		changes to the running configuration file and remain
		within the configuration session.
Step 11
	show policy-map interface type instance [input	(Optional) Displays policy configuration information for all
	output]	classes configured for all service policies on the specified
		interface.
	Example:
	RP/0/RP0/CPU0:router# show policy-map interface
	POS 0/2/0/0

Configuring Traffic Shaping

Traffic shaping allows you to control the traffic exiting an interface to match its transmission to the speed of the remote target interface and ensure that the traffic conforms to policies contracted for it.

Shaping performed on outgoing interfaces is done at the Layer 2 level and includes the Layer 2 header in the rate calculation.

Cisco IOS XR Modular Quality of Service Configuration Guide

QC-42