User guide

ExtremeWare 7.2e Installation and User Guide 109
7 Quality of Service (QoS)
This chapter covers the following topics:
• Overview of Policy-Based Quality of Service on page 110
• Applications and Types of QoS on page 110
• Configuring QoS on page 112
• QoS Profiles on page 112
• Traffic Groupings on page 113
— IP-Based Traffic Groupings on page 114
— MAC-Based Traffic Groupings on page 114
— Explicit Class of Service (802.1p and DiffServ) Traffic Groupings on page 115
— Configuring DiffServ on page 117
— Physical and Logical Groupings on page 119
• Verifying Configuration and Performance on page 120
• Verifying Configuration and Performance on page 120
• Modifying a QoS Configuration on page 121
• on page 122
• on page 122
Policy-based Quality of Service (QoS) is a feature of ExtremeWare and the Extreme switch architecture
that allows you to specify different service levels for traffic traversing the switch. Policy-based QoS is an
effective control mechanism for networks that have heterogeneous traffic patterns. Using Policy-based
QoS, you can specify the service level that a particular traffic type receives.