Cisco WS-C2948G-GE-TX - Page 8

Contents
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Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
78-15908-01
CHAPTER 8 Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and
Loop Guard
8-1
Understanding How PortFast Works 8-2
Understanding How PortFast BPDU Guard Works 8-2
Understanding How PortFast BPDU Filtering Works 8-2
Understanding How UplinkFast Works 8-3
Understanding How BackboneFast Works 8-4
Understanding How Loop Guard Works 8-6
Configuring PortFast 8-8
Enabling PortFast on an Access Port 8-8
Enabling PortFast on a Trunk Port 8-9
Disabling PortFast 8-10
Resetting PortFast 8-11
Configuring PortFast BPDU Guard 8-11
Enabling PortFast BPDU Guard 8-11
Disabling PortFast BPDU Guard 8-12
Configuring PortFast BPDU Filtering 8-13
Enabling PortFast BPDU Filtering 8-13
Disabling PortFast BPDU Filtering 8-14
Configuring UplinkFast 8-15
Enabling UplinkFast 8-15
Disabling UplinkFast 8-16
Configuring BackboneFast 8-17
Enabling BackboneFast 8-17
Displaying BackboneFast Statistics 8-17
Disabling BackboneFast 8-18
Configuring Loop Guard 8-18
Enabling Loop Guard 8-18
Disabling Loop Guard 8-19
CHAPTER 9 Configuring VTP 9-1
Understanding How VTP Version 1 and Version 2 Work 9-1
Understanding the VTP Domain 9-2
Understanding VTP Modes 9-2
Understanding VTP Advertisements 9-3
Understanding VTP Version 2 9-3
Understanding VTP Pruning 9-4
Default VTP Version 1 and Version 2 Configuration 9-5