User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform Table of Contents
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Table of Contents
Chapter 1 QoS Overview ............................................................................................................. 1-1
1.1 About QoS ........................................................................................................................1-1
1.2 Three service types of QoS ..............................................................................................1-1
1.3 Functions of QoS.............................................................................................................. 1-2
Chapter 2 Traffic Classification and Policing............................................................................ 2-1
2.1 Traffic Classification and Policing..................................................................................... 2-1
2.1.1 Introduction to Traffic Classification .......................................................................2-1
2.1.2 Introduction to Traffic Policing................................................................................ 2-2
2.1.3 Introduction to CAR................................................................................................ 2-3
2.2 CAR Configuration............................................................................................................ 2-4
2.2.1 CAR Configuration Task List.................................................................................. 2-4
2.2.2 Specify CAR rules.................................................................................................. 2-4
2.2.3 Apply the CAR Rule on the Interface .....................................................................2-5
2.2.4 Monitoring and Maintenance of CAR .....................................................................2-5
2.3 CAR Configuration Example............................................................................................. 2-6
2.3.1 Applying CAR Rules to All Packets........................................................................ 2-6
2.3.2 Apply CAR Rules to Packets Which is Matched the ACL ......................................2-7
2.3.3 Configure CAR Rules Based on the Priority Level................................................. 2-8
2.3.4 Configure CAR Rules Based on the MAC Address ...............................................2-8
Chapter 3 Congestion Management........................................................................................... 3-1
3.1 Congestion and Congestion Management ....................................................................... 3-1
3.1.1 About Congestion................................................................................................... 3-1
3.1.2 Congestion Management Policy ............................................................................ 3-1
3.1.3 Selecting Congestion Management Policy ............................................................ 3-3
3.1.4 Working Principle of Congestion Management Policy ........................................... 3-4
3.2 Configuration of Congestion Management .......................................................................3-7
3.2.1 Configuring PQ....................................................................................................... 3-7
3.2.2 Configuring CQ..................................................................................................... 3-11
3.2.3 Configuring WFQ ................................................................................................. 3-14
3.3 Configuration Example of Congestion Management ......................................................3-15
3.3.1 PQ Configuration Example................................................................................... 3-15
3.3.2 CQ Configuration Example .................................................................................. 3-15
3.4 Troubleshooting of Congestion Management................................................................. 3-18