Contents
10
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Enabling the Extended System ID 24
Configuring the Root Bridge 24
Configuring a Secondary Root Bridge 26
Configuring STP Port Priority 27
Configuring STP Port Cost 28
Configuring the Bridge Priority of a VLAN 30
Configuring the Hello Time 31
Configuring the Forward-Delay Time for a VLAN 32
Configuring the Maximum Aging Time for a VLAN 32
Enabling Rapid-PVST 33
Configuring Prestandard IEEE 802.1s MST 33
Enabling MST 34
Displaying MST Configurations 35
Configuring MST Instance Parameters 39
Configuring MST Instance Port Parameters 40
Restarting Protocol Migration 40
Configuring Optional STP Features 1
Understanding How PortFast Works 2
Understanding How BPDU Guard Works 2
Understanding How PortFast BPDU Filtering Works 2
Understanding How UplinkFast Works 3
Understanding How BackboneFast Works 4
Understanding How EtherChannel Guard Works 6
Understanding How Root Guard Works 7
Understanding How Loop Guard Works 7
Enabling PortFast 8
Enabling PortFast BPDU Filtering 10
Enabling BPDU Guard 12
Enabling UplinkFast 12
Enabling BackboneFast 13
Enabling EtherChannel Guard 14
Enabling Root Guard 14
Enabling Loop Guard 15