Contents
viii
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
78-6511-08
Configuring STP
6-33
Supported STP Instances
6-33
Using STP to Support Redundant Connectivity
6-34
Disabling STP
6-34
Accelerating Aging to Retain Connectivity
6-34
Configuring STP and UplinkFast in a Cascaded Cluster
6-35
Configuring Redundant Links By Using STP UplinkFast
6-36
Enabling STP UplinkFast
6-37
Configuring Cross-Stack UplinkFast
6-37
How CSUF Works
6-37
Events that Cause Fast Convergence
6-39
Limitations
6-39
Connecting the Stack Ports
6-40
Configuring Cross-Stack UplinkFast
6-41
Changing the STP Parameters for a VLAN
6-42
Changing the STP Implementation
6-42
Changing the Switch Priority
6-42
Changing the BPDU Message Interval
6-43
Changing the Hello BPDU Interval
6-43
Changing the Forwarding Delay Time
6-43
STP Port States
6-44
Enabling the Port Fast Feature
6-44
Changing the Path Cost
6-45
Changing the Port Priority
6-45
Configuring STP Root Guard
6-46
Configuring BPDU Guard
6-47
Configuring SNMP
6-48
Disabling and Enabling SNMP
6-48
Entering Community Strings
6-49
Adding Trap Managers
6-49
Configuring
6-51
Configuring the Server Host
6-51
Configuring Login Authentication
6-52
Specifying Authorization for EXEC Access and Network Services
6-53
Starting Accounting
6-54
Configuring a Switch for Local AAA
6-54
Controlling Switch Access with RADIUS
6-55
Understanding RADIUS
6-55
RADIUS Operation
6-56
