H3C S3610-28F, Руководство по эксплуатации

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Operation Manual – QoS
H3C S3610&S5510 Series Ethernet Switches
Table of Contents
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Table of Contents
Chapter 1 QoS Overview .............................................................................................................. 1-1
1.1 Introduction ........................................................................................................................ 1-1
1.2 Traditional Packet Forwarding Service .............................................................................. 1-1
1.3 New Requirements Brought forth by New Services .......................................................... 1-1
1.4 Occurrence and Influence of Congestion and the Countermeasures ............................... 1-2
1.4.1 Occurrence of Congestion ...................................................................................... 1-2
1.4.2 Influence of Congestion .......................................................................................... 1-3
1.4.3 Countermeasures.................................................................................................... 1-3
1.5 Major Traffic Management Techniques ............................................................................. 1-3
Chapter 2 Traffic Classification, TP, and TS Configuration ...................................................... 2-1
2.1 Traffic Classification Overview........................................................................................... 2-1
2.1.1 Traffic Classification ................................................................................................ 2-1
2.1.2 Priority ..................................................................................................................... 2-2
2.2 TP and TS Overview.......................................................................................................... 2-5
2.3 Traffic Evaluation and the Token Bucket........................................................................... 2-5
2.3.1 Token bucket........................................................................................................... 2-5
2.3.2 Evaluating the traffic with the token bucket............................................................. 2-6
2.3.3 Complicated evaluation........................................................................................... 2-6
2.3.4 TP ............................................................................................................................ 2-6
2.3.5 TS ............................................................................................................................ 2-7
2.4 TP and TS Configuration ................................................................................................... 2-8
2.4.1 Configuring TP ........................................................................................................ 2-8
2.4.2 Configuring TS ........................................................................................................ 2-9
2.5 Displaying TP&TS............................................................................................................ 2-11
Chapter 3 QoS Policy Configuration ........................................................................................... 3-1
3.1 Overview ............................................................................................................................ 3-1
3.2 Configuring QoS Policy...................................................................................................... 3-2
3.3 Introduction to QoS Policies .............................................................................................. 3-2
3.4 Configuring a QoS Policy................................................................................................... 3-2
3.4.1 Configuration Prerequisites..................................................................................... 3-2
3.4.2 Defining a Class ...................................................................................................... 3-3
3.4.3 Defining a Traffic Behavior...................................................................................... 3-5
3.4.4 Defining a Policy...................................................................................................... 3-7
3.4.5 Applying a Policy ..................................................................................................... 3-8
3.5 Displaying QoS Policy ....................................................................................................... 3-9
Chapter 4 Congestion Management ............................................................................................ 4-1
4.1 Overview ............................................................................................................................ 4-1