Operation Manual – QoS-QoS ProfileH3C S3100-52P Ethernet Switch Table of ContentsiTable of ContentsChapter 1 QoS Configuration....................................................................................................... 1-11.1 Overview ............................................................................................................................ 1-11.1.1 Introduction to QoS ................................................................................................. 1-11.1.2 Traditional Packet Forwarding Service ................................................................... 1-21.1.3 New Applications and New Requirements.............................................................. 1-21.1.4 Major Traffic Control Techniques ............................................................................ 1-31.2 QoS Supported By S3100-52P Ethernet Switch ............................................................... 1-41.3 Introduction to QoS Functions ........................................................................................... 1-51.3.1 Traffic Classification ................................................................................................ 1-51.3.2 Priority Trust Mode.................................................................................................. 1-61.3.3 Protocol Priority ..................................................................................................... 1-101.3.4 Priority Marking ..................................................................................................... 1-101.3.5 Traffic Policing....................................................................................................... 1-101.3.6 Line Rate ............................................................................................................... 1-121.3.7 Traffic Redirecting ................................................................................................. 1-121.3.8 VLAN Mapping ...................................................................................................... 1-121.3.9 Queue Scheduling................................................................................................. 1-121.3.10 Congestion Avoidance ........................................................................................ 1-151.3.11 Flow-based Traffic Accounting............................................................................ 1-161.3.12 Burst .................................................................................................................... 1-161.3.13 Traffic mirroring ................................................................................................... 1-171.4 QoS Configuration ........................................................................................................... 1-171.4.1 Configuring Priority Trust Mode ............................................................................ 1-171.4.2 Configuring the Mapping between 802.1p Priority and Local Precedence ........... 1-181.4.3 Setting the Priority of Protocol Packets................................................................. 1-191.4.4 Marking Packet Priority ......................................................................................... 1-201.4.5 Configuring Traffic Policing ................................................................................... 1-221.4.6 Configuring Line Rate ........................................................................................... 1-231.4.7 Configuring Traffic Redirecting.............................................................................. 1-241.4.8 Configuring VLAN Mapping................................................................................... 1-251.4.9 Configuring Queue Scheduling ............................................................................. 1-261.4.10 Configuring WRED.............................................................................................. 1-281.4.11 Configuring Traffic Accounting ............................................................................ 1-291.4.12 Enabling the Burst Function ................................................................................ 1-301.4.13 Configuring Traffic Mirroring................................................................................ 1-301.5 Displaying and Maintaining QoS...................................................................................... 1-321.6 QoS Configuration Examples .......................................................................................... 1-331.6.1 Configuration Example of Traffic policing and Line Rate...................................... 1-33