Table of Contents

1QoS Configuration·····································································································································1-1Overview ·················································································································································1-1 Introduction to QoS··························································································································1-1 Traditional Packet Forwarding Service····························································································1-1 New Applications and New Requirements ······················································································1-1 Major Traffic Control Techniques ····································································································1-2 QoS Supported by Devices·····················································································································1-2 Traffic Classification ························································································································1-2 Precedence ·····································································································································1-3 Priority Trust Mode ··························································································································1-5 Protocol Priority ·······························································································································1-8 Priority Marking································································································································1-8 Traffic Policing and Traffic Shaping·································································································1-8 Traffic Redirecting ·························································································································1-10 VLAN Mapping ······························································································································1-10 Queue Scheduling·························································································································1-10Flow-based Traffic Accounting ······································································································1-13 Burst ··············································································································································1-13 Traffic mirroring ·····························································································································1-13 QoS Configuration·································································································································1-13 QoS Configuration Task List ·········································································································1-13 Configuring Priority Trust Mode·····································································································1-14 Configuring Priority Mapping ·········································································································1-15 Setting the Priority of Protocol Packets·························································································1-18 Marking Packet Priority··················································································································1-19 Configuring Traffic Policing ···········································································································1-20 Configuring Traffic Shaping···········································································································1-22 Configuring Traffic Redirecting······································································································1-23 Configuring VLAN Mapping···········································································································1-25 Configuring Queue Scheduling ·····································································································1-25 Collecting/Clearing Traffic Statistics······························································································1-27 Enabling the Burst Function ··········································································································1-29 Configuring Traffic Mirroring··········································································································1-29 Displaying and Maintaining QoS ···································································································1-32 QoS Configuration Example ·················································································································1-33 Configuration Example of Traffic Policing ·····················································································1-33

2QoS Profile Configuration ························································································································2-1Overview ·················································································································································2-1 Introduction to QoS Profile ··············································································································2-1 QoS Profile Application Mode ·········································································································2-1 QoS Profile Configuration ·······················································································································2-2 QoS Profile Configuration Task List ································································································2-2 Configuring a QoS Profile················································································································2-2

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