Cisco WS-C3550-12G Software Configuration Manual page 11

Configuring STP
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C H A P T E R
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802.1Q Configuration Considerations
Default Layer 2 Ethernet Interface VLAN Configuration
Configuring an Ethernet Interface as a Trunk Port
Configuring a Trunk Port
Defining the Allowed VLANs on a Trunk
Changing the Pruning-Eligible List
Configuring the Native VLAN for Untagged Traffic
Load Sharing Using STP
Load Sharing Using STP Port Priorities
Configuring STP Port Priorities and Load Sharing
Load Sharing Using STP Path Cost
Configuring STP Path Costs and Load Sharing
Understanding VMPS
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Dynamic Port VLAN Membership
VMPS Database Configuration File
VMPS Configuration Guidelines
Default VMPS Configuration
Configuring an Interface as a Layer 2 Dynamic Access Port
Entering the IP Address of the VMPS
Configuring Dynamic Access Ports on VMPS Clients
Reconfirming VLAN Memberships
Changing the Reconfirmation Interval
Changing the Retry Count
Administering and Monitoring the VMPS
Troubleshooting Dynamic Port VLAN Membership
Dynamic Port VLAN Membership Configuration Example
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Understanding Basic STP Features
Supported STP Instances
STP Overview
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Bridge ID, Switch Priority, and Extended System ID
Election of the Root Switch
Bridge Protocol Data Units
STP Timers
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Creating the STP Topology
STP Interface States
Blocking State
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Listening State
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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Contents
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