Cisco Catalyst 3550 Series - Configuring a System Name and Prompt; CHAPTER 15 Configuring 802.1 Q and Layer 2 Protocol Tunneling; Enabling BPDU Guard

Contents
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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Configuring the Switch Priority of a VLAN 16-20
Configuring Spanning-Tree Timers 16-20
Configuring the Hello Time 16-21
Configuring the Forwarding-Delay Time for a VLAN 16-22
Configuring the Maximum-Aging Time for a VLAN 16-22
Configuring Spanning Tree for Use in a Cascaded Stack 16-23
Displaying the Spanning-Tree Status 16-24
CHAPTER 17 Configuring MSTP 17-1
Understanding MSTP 17-2
Multiple Spanning-Tree Regions 17-2
IST, CIST, and CST 17-2
Operations Within an MST Region 17-3
Operations Between MST Regions 17-3
Hop Count 17-4
Boundary Ports 17-5
Interoperability with 802.1D STP 17-5
Understanding RSTP 17-6
Port Roles and the Active Topology 17-6
Rapid Convergence 17-7
Synchronization of Port Roles 17-8
Bridge Protocol Data Unit Format and Processing 17-9
Processing Superior BPDU Information 17-10
Processing Inferior BPDU Information 17-10
Topology Changes 17-10
Configuring MSTP Features 17-11
Default MSTP Configuration 17-12
MSTP Configuration Guidelines 17-12
Specifying the MST Region Configuration and Enabling MSTP 17-13
Configuring the Root Switch 17-14
Configuring a Secondary Root Switch 17-16
Configuring the Port Priority 17-17
Configuring the Path Cost 17-18
Configuring the Switch Priority 17-19
Configuring the Hello Time 17-19
Configuring the Forwarding-Delay Time 17-20
Configuring the Maximum-Aging Time 17-21
Configuring the Maximum-Hop Count 17-21