Contents

C H A P T E R 26

Configuring Port-Based Traffic Control

26-1

 

 

 

 

 

 

 

 

Configuring Storm Control

26-1

 

 

 

 

 

 

 

 

 

 

 

Understanding Storm Control

26-1

 

 

 

 

 

 

 

 

 

Default Storm Control Configuration

26-3

 

 

 

 

 

 

 

Configuring Storm Control and Threshold Levels

26-3

 

 

 

 

 

Configuring Protected Ports

26-5

 

 

 

 

 

 

 

 

 

 

Default Protected Port Configuration

26-5

 

 

 

 

 

 

 

Protected Port Configuration Guidelines

26-6

 

 

 

 

 

 

Configuring a Protected Port

26-6

 

 

 

 

 

 

 

 

 

Configuring Port Blocking

26-6

 

 

 

 

 

 

 

 

 

 

 

Default Port Blocking Configuration

26-7

 

 

 

 

 

 

 

Blocking Flooded Traffic on an Interface

26-7

 

 

 

 

 

 

Configuring Port Security

26-7

 

 

 

 

 

 

 

 

 

 

 

Understanding Port Security

26-8

 

 

 

 

 

 

 

 

 

Secure MAC Addresses

26-8

 

 

 

 

 

 

 

 

 

Security Violations

26-9

 

 

 

 

 

 

 

 

 

 

Default Port Security Configuration

26-10

 

 

 

 

 

 

 

Port Security Configuration Guidelines

26-10

 

 

 

 

 

 

Enabling and Configuring Port Security

26-12

 

 

 

 

 

 

Enabling and Configuring Port Security Aging

26-16

 

 

 

 

 

Port Security and Switch Stacks

26-17

 

 

 

 

 

 

 

 

Port Security and Private VLANs

26-17

 

 

 

 

 

 

 

 

Displaying Port-Based Traffic Control Settings

26-18

 

 

 

 

Configuring CDP

 

 

 

 

 

 

 

 

 

 

 

C H A P T E R 27

27-1

 

 

 

 

 

 

 

 

 

 

 

 

Understanding CDP 27-1

 

 

 

 

 

 

 

 

 

 

 

 

CDP and Switch Stacks

27-2

 

 

 

 

 

 

 

 

 

 

Configuring CDP

27-2

 

 

 

 

 

 

 

 

 

 

 

 

Default CDP Configuration

27-2

 

 

 

 

 

 

 

 

 

Configuring the CDP Characteristics

27-2

 

 

 

 

 

 

 

Disabling and Enabling CDP

27-3

 

 

 

 

 

 

 

 

 

Disabling and Enabling CDP on an Interface

27-4

 

 

 

 

 

Monitoring and Maintaining CDP

27-5

 

 

 

 

 

 

 

 

Configuring LLDP and LLDP-MED

 

 

 

 

 

 

 

 

C H A P T E R 28

28-1

 

 

 

 

 

 

 

 

 

Understanding LLDP and LLDP-MED

28-1

 

 

 

 

 

 

 

 

Understanding LLDP 28-1

 

 

 

 

 

 

 

 

 

 

 

Understanding LLDP-MED

28-2

 

 

 

 

 

 

 

 

 

 

 

 

 

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

 

 

 

 

 

 

 

 

 

 

 

OL-9775-02

 

 

 

 

 

 

 

 

 

 

xxiii

 

 

 

 

 

 

 

 

 

 

 

 

 

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Cisco Systems 3750E manual Understanding Storm Control, Xxiii