Contents
ix
Ethernet Card Software Feature and Configuration Guide, R7.2
January 2009
Priority Mechanism in IP and Ethernet 14-2
IP Precedence and Differentiated Services Code Point 14-2
Ethernet CoS 14-3
ML-Series QoS 14-4
Classification 14-4
Policing 14-5
Marking and Discarding with a Policer 14-5
Queuing 14-6
Scheduling 14-6
Control Packets and L2 Tunneled Protocols 14-8
Egress Priority Marking 14-8
Ingress Priority Marking 14-8
QinQ Implementation 14-8
Flow Control Pause and QoS 14-9
QoS on Cisco Proprietary RPR 14-10
Configuring QoS 14-12
Creating a Traffic Class 14-12
Creating a Traffic Policy 14-13
Attaching a Traffic Policy to an Interface 14-16
Configuring CoS-Based QoS 14-17
Monitoring and Verifying QoS Configuration 14-17
QoS Configuration Examples 14-18
Traffic Classes Defined Example 14-19
Traffic Policy Created Example 14-19
class-map match-any and class-map match-all Commands Example 14-20
match spr1 Interface Example 14-20
ML-Series VoIP Example 14-21
ML-Series Policing Example 14-21
ML-Series CoS-Based QoS Example 14-22
Understanding Multicast QoS and Priority Multicast Queuing 14-24
Default Multicast QoS 14-24
Multicast Priority Queuing QoS Restrictions 14-25
Configuring Multicast Priority Queuing QoS 14-25
QoS not Configured on Egress 14-27
ML-Series Egress Bandwidth Example 14-27
Case 1: QoS with Priority and Bandwidth Configured Without Priority Multicast 14-27
Case 2: QoS with Priority and Bandwidth Configured with Priority Multicast 14-28
Understanding CoS-Based Packet Statistics 14-29