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xix
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
OL-10101-02
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 22-3
Default UDLD Configuration 22-4
Configuration Guidelines 22-4
Enabling UDLD Globally 22-5
Enabling UDLD on an Interface 22-5
Resetting an Interface Shut Down by UDLD 22-6
Displaying UDLD Status 22-7
CHAPTER
23 Configuring CDP 23-1
Understanding CDP 23-1
Configuring CDP 23-2
Default CDP Configuration 23-2
Configuring the CDP Characteristics 23-2
Disabling and Enabling CDP 23-3
Disabling and Enabling CDP on an Interface 23-4
Monitoring and Maintaining CDP 23-4