Contents
xviii
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
78-11380-12
Configuring IGMP Filtering and Throttling 20-23
Default IGMP Filtering and Throttling Configuration 20-23
Configuring IGMP Profiles 20-24
Applying IGMP Profiles 20-25
Setting the Maximum Number of IGMP Groups 20-26
Configuring the IGMP Throttling Action 20-26
Displaying IGMP Filtering and Throttling Configuration 20-28
CHAPTER
21 Configuring Port-Based Traffic Control 21-1
Configuring Storm Control 21-1
Understanding Storm Control 21-1
Default Storm Control Configuration 21-2
Configuring Storm Control and Threshold Levels 21-2
Configuring Protected Ports 21-4
Configuring Port Blocking 21-5
Blocking Flooded Traffic on an Interface 21-5
Resuming Normal Forwarding on a Port 21-6
Configuring Port Security 21-6
Understanding Port Security 21-6
Secure MAC Addresses 21-6
Security Violations 21-7
Default Port Security Configuration 21-8
Port Security Configuration Guidelines 21-8
Enabling and Configuring Port Security 21-9
Enabling and Configuring Port Security Aging 21-11
Displaying Port-Based Traffic Control Settings 21-13
CHAPTER
22 Configuring UDLD 22-1
Understanding UDLD 22-1
Modes of Operation 22-1
Methods to Detect Unidirectional Links 22-2
Configuring UDLD 22-4
Default UDLD Configuration 22-4
Configuration Guidelines 22-4
Enabling UDLD Globally 22-5
Enabling UDLD on an Interface 22-6
Resetting an Interface Shut Down by UDLD 22-6
Displaying UDLD Status 22-7
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