Cisco Catalyst 3550 Command Reference Manual page 549

Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
Related Commands Command
show running-config
spanning-tree portfast (global
configuration)
spanning-tree portfast (interface
configuration)
OL-8566-01
Description
Displays the current operating configuration. For syntax
information, select Cisco IOS Release 12.2 Configuration Guides
and Command References > Cisco IOS Configuration
Fundamentals Command Reference, Release 12.2 > File
Management Commands > Configuration File Management
Commands.
Globally enables the BPDU filtering or the BPDU guard feature
on Port Fast-enabled ports or enables the Port Fast feature on all
nontrunking ports.
Enables the Port Fast feature on an interface and all its associated
VLANs.
Catalyst 3550 Multilayer Switch Command Reference
spanning-tree bpduguard
2-523