Specifications

Contents
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Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
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Auto-QoS Configuration Example 27-14
Configuring Standard QoS 27-15
Default Standard QoS Configuration 27-16
Configuration Guidelines 27-17
Configuring Classification Using Port Trust States 27-17
Configuring the Trust State on Ports within the QoS Domain 27-18
Configuring the CoS Value for an Interface 27-20
Configuring Trusted Boundary 27-20
Enabling Pass-Through Mode 27-22
Configuring a QoS Policy 27-23
Classifying Traffic by Using ACLs 27-24
Classifying Traffic by Using Class Maps 27-27
Classifying, Policing, and Marking Traffic by Using Policy Maps 27-28
Configuring CoS Maps 27-31
Configuring the CoS-to-DSCP Map 27-32
Configuring the DSCP-to-CoS Map 27-33
Configuring the Egress Queues 27-34
Configuring CoS Priority Queues 27-34
Configuring WRR Priority 27-35
Enabling the Expedite Queue and Configuring WRR Priority 27-35
Displaying Standard QoS Information 27-36
Standard QoS Configuration Examples 27-36
QoS Configuration for the Existing Wiring Closet 27-37
QoS Configuration for the Intelligent Wiring Closet 27-38
CHAPTER 28 Configuring EtherChannels 28-1
Understanding EtherChannels 28-1
Understanding Port-Channel Interfaces 28-2
Understanding the Port Aggregation Protocol and Link Aggregation Protocol 28-3
PAgP and LACP Modes 28-3
Physical Learners and Aggregate-Port Learners 28-5
PAgP and LACP Interaction with Other Features 28-5
Understanding Load Balancing and Forwarding Methods 28-6
Configuring EtherChannels 28-7
Default EtherChannel Configuration 28-8
EtherChannel Configuration Guidelines 28-8
Configuring Layer 2 EtherChannels 28-9
Configuring EtherChannel Load Balancing 28-11
Configuring the PAgP Learn Method and Priority 28-12