xiii
Basic Edge .....................................................................................................................................16-13
Standard Edge................................................................................................................................16-14
Premium Edge................................................................................................................................16-14
Premium Distribution ......................................................................................................................16-14
Platform Configuration ......................................................................................................................... 16-14
Configuring Guest Policy on Edge Platforms .................................................................................16-15
Configuring Policy for the Edge Student Fixed Switch ...................................................................16-15
Configuring PhoneFS Policy for the Edge Fixed Switch.................................................................16-16
Configuring Policy for the Edge Faculty Fixed Switch ....................................................................16-17
Terms and Definitions ................................................................................................................................. 16-18
Chapter 17: Configuring Quality of Service
Quality of Service Overview ......................................................................................................................... 17-1
Implementing QoS ................................................................................................................................. 17-1
Quality of Service Operation .................................................................................................................. 17-2
Class of Service (CoS) ........................................................................................................................... 17-2
CoS Settings .......................................................................................................................................... 17-3
CoS Hardware Resource Reference ................................................................................................17-3
CoS Flood Control State...................................................................................................................17-3
CoS Priority and ToS Rewrite...........................................................................................................17-3
CoS Reference ....................................................................................................................................... 17-4
Port Group and Type........................................................................................................................17-4
CoS Settings Reference to Port Resource Mapping ........................................................................17-5
Port Resources ...................................................................................................................................... 17-5
Port Configuration .................................................................................................................................. 17-5
Preferential Queue Treatment for Packet Forwarding ........................................................................... 17-6
Strict Priority Queuing.......................................................................................................................17-6
Weighted Fair Queuing.....................................................................................................................17-6
Hybrid Queuing.................................................................................................................................17-7
Rate Limiting .......................................................................................................................................... 17-8
Flood Control .......................................................................................................................................... 17-9
CoS Hardware Resource Configuration ....................................................................................................... 17-9
IRL Configuration ................................................................................................................................... 17-9
CoS Port Configuration Layer...........................................................................................................17-9
CoS Port Resource Layer...............................................................................................................17-10
CoS Reference Layer.....................................................................................................................17-10
CoS Settings Layer.........................................................................................................................17-10
Enable CoS State...........................................................................................................................17-10
IRL Configuration Example Show Command Output .....................................................................17-10
Flood Control Configuration ................................................................................................................. 17-12
CoS Port Configuration Layer.........................................................................................................17-12
CoS Port Resource Layer...............................................................................................................17-12
CoS Reference Layer.....................................................................................................................17-12
CoS Settings Layer.........................................................................................................................17-12
Enable CoS State...........................................................................................................................17-12
Flood Control Configuration Example Show Command Output .....................................................17-12
Enabling CoS State .............................................................................................................................. 17-13
The QoS CLI Command Flow .................................................................................................................... 17-14
Port Priority and Transmit Queue Configuration ......................................................................................... 17-15
Setting Port Priority .............................................................................................................................. 17-15
Example..........................................................................................................................................17-15
Mapping Port Priority to Transmit Queues ........................................................................................... 17-15
Example..........................................................................................................................................17-16
Setting Transmit Queue Arbitration ...................................................................................................... 17-16
Port Traffic Rate Limiting ............................................................................................................................ 17-17
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