ix
Global Layer-3 Protocol Classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-53
Assigning a Priority for a Global Layer-3 Protocol Classifier . . . 5-53
Global VLAN-ID Classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-55
Assigning a Priority for a Global VLAN-ID Classifier . . . . . . . . . 5-55
Assigning a DSCP Policy for a Global VLAN-ID Classifier . . . . . 5-57
Global Source-Port Classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-62
Assigning a Priority for a Global Source-Port Classifier . . . . . . . 5-62
Assigning a DSCP Policy for a Global Source-Port Classifier . . 5-64
IP Multicast (IGMP) Interaction with QoS . . . . . . . . . . . . . . . . . . . . . . 5-70
Advanced Classifier-Based QoS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-71
Classifier-Based QoS Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-72
Classifier-Based QoS Configuration Procedure . . . . . . . . . . . . . . . . . 5-72
Configuring QoS Actions in a Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-77
Override of Global QoS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-82
Viewing a Classifier-Based QoS Configuration . . . . . . . . . . . . . . . . . . 5-83
Classifier-Based QoS Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-87
Interaction with Other Software Features . . . . . . . . . . . . . . . . . . . . . . 5-87
Classifier-Based QoS Configuration Examples . . . . . . . . . . . . . . . . . . 5-88
QoS Policy for Layer 4 TCP/UDP Traffic . . . . . . . . . . . . . . . . . . . 5-89
QoS Policy for Subnet Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-89
Differentiated Services Codepoint (DSCP) Mapping . . . . . . . . . . . 5-90
Default Priority Settings for Selected Codepoints . . . . . . . . . . . . . . . 5-91
Displaying Non-Default Codepoint Settings . . . . . . . . . . . . . . . . . 5-92
Notes on Changing a Priority Setting . . . . . . . . . . . . . . . . . . . . . . . . . . 5-93
Error Messages for DSCP Policy Changes . . . . . . . . . . . . . . . . . . 5-94
Example of Changing the Priority Setting on a Policy
When One or More Classifiers Are Currently Using the Policy . 5-95
QoS Queue Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-97
Mapping of Outbound Port Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-98
Impact of QoS Queue Configuration on Guaranteed
Minimum Bandwidth (GMB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-98
Minimum Guaranteed Bandwidth with 8 Queues . . . . . . . . . . . . . . . . 5-99
Configuring the Number of Priority Queues . . . . . . . . . . . . . . . . . . . 5-100
Viewing the QoS Queue Configuration . . . . . . . . . . . . . . . . . . . . . . . . 5-101
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