Specifications

Contents
xvii
Catalyst 2970 Switch Software Configuration Guide
78-15462-03
CHAPTER 20 Configuring CDP 20-1
Understanding CDP 20-1
Configuring CDP 20-2
Default CDP Configuration 20-2
Configuring the CDP Characteristics 20-2
Disabling and Enabling CDP 20-3
Disabling and Enabling CDP on an Interface 20-4
Monitoring and Maintaining CDP 20-5
CHAPTER 21 Configuring UDLD 21-1
Understanding UDLD 21-1
Modes of Operation 21-1
Methods to Detect Unidirectional Links 21-2
Configuring UDLD 21-4
Default UDLD Configuration 21-4
Configuration Guidelines 21-4
Enabling UDLD Globally 21-5
Enabling UDLD on an Interface 21-5
Resetting an Interface Disabled by UDLD 21-6
Displaying UDLD Status 21-6
CHAPTER 22 Configuring SPAN and RSPAN 22-1
Understanding SPAN and RSPAN 22-1
Local SPAN 22-2
Remote SPAN 22-2
SPAN and RSPAN Concepts and Terminology 22-3
SPAN Sessions 22-3
Monitored Traffic 22-4
Source Ports 22-5
Source VLANs 22-6
VLAN Filtering 22-6
Destination Port 22-7
RSPAN VLAN 22-8
SPAN and RSPAN Interaction with Other Features 22-8
Configuring SPAN and RSPAN 22-9
Default SPAN and RSPAN Configuration 22-9
Configuring Local SPAN 22-10
SPAN Configuration Guidelines 22-10