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3Com Router 3000 Ethernet Family
Configuration Guide
3.4.1 Configuring CQL.................................................................................................... 3-12
3.4.2 Applying Custom-list on the Interface ................................................................... 3-14
3.4.3 Displaying and Debugging Custom-list Queue ..................................................... 3-15
3.5 WFQ Configuration .......................................................................................................... 3-15
3.5.1 Using WFQ or Modifying WFQ Parameters.......................................................... 3-16
3.5.2 Displaying and Debugging WFQ........................................................................... 3-16
3.6 Class-based Queuing Configuration................................................................................ 3-17
3.6.1 Configuring the Maximum Available Bandwidth on the Interface ......................... 3-18
3.6.2 Configuring Matching Rules of a Class ................................................................. 3-18
3.6.3 Configuring Features of a Traffic Behavior ........................................................... 3-23
3.6.4 Configuring Policy ................................................................................................. 3-32
3.6.5 Applying Policy ...................................................................................................... 3-33
3.6.6 Displaying and Debugging CBQ ........................................................................... 3-34
3.7 RTP Priority Queuing Configuration ................................................................................ 3-35
3.7.1 Applying RTP priority queuing on the interface..................................................... 3-35
3.7.2 Configuring Maximum Reserved Bandwidth......................................................... 3-36
3.7.3 Displaying and Debugging RTP Priority Queuing Configuration .......................... 3-36
3.7.4 Token Function of QoS ......................................................................................... 3-36
3.8 Typical Configuration Example ........................................................................................ 3-37
3.8.1 PQ Configuration Example.................................................................................... 3-37
3.8.2 CBQ Configuration Example ................................................................................. 3-38
3.8.3 CQ Configuration Example ................................................................................... 3-40
3.8.4 CBQ Configuration Example ................................................................................. 3-41
3.8.5 Integrated QoS Policy Embedding and LR Configuration Example...................... 3-44
3.8.6 ATM PVC Remark Policy Configuration Example ................................................ 3-46
3.8.7 Congestion Management Using ATM CLP Bit Configuration Example ................ 3-48
Chapter 4 Congestion Avoidance................................................................................................ 4-1
4.1 Introduction to Congestion Avoidance ............................................................................... 4-1
4.2 WRED Configuration ......................................................................................................... 4-3
4.2.1 Enabling WRED ...................................................................................................... 4-3
4.2.2 Setting WRED to Calculate the Coefficient of Average Queue Length .................. 4-4
4.2.3 Setting WRED Priorities .......................................................................................... 4-4
4.2.4 Setting the Parameters of a WRED DSCP ............................................................. 4-5
4.3 WRED Display and Debug ................................................................................................ 4-5
Chapter 5 Protocol Packet Priority Configuration ..................................................................... 5-1
5.1 Introduction to IP Packet Priority ....................................................................................... 5-1
5.2 Configuring Priorities for Protocol Packets ........................................................................ 5-3
5.3 Protocol Packet Priority Configuration Example................................................................ 5-4
Chapter 6 MPLS QoS..................................................................................................................... 6-1
6.1 MPLS QoS Overview......................................................................................................... 6-1
6.2 MPLS QoS Configuration .................................................................................................. 6-1
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