Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual page 11

Contents
OL-16597-01
Information About Rapid PVST+
Understanding STP 150
STP Overview 150
Understanding How a Topology is Created
Understanding the Bridge ID
Bridge Priority Value
Extended System ID
STP MAC Address Allocation
Understanding BPDUs
Election of the Root Bridge
Creating the Spanning Tree Topology
Understanding Rapid PVST+
Rapid PVST+ Overview
Rapid PVST+ BPDUs
Proposal and Agreement Handshake
Protocol Timers 158
Port Roles
158
Port States
159
Rapid PVST+ Port State Overview
Blocking State
Learning State
Forwarding State
Disabled State
Summary of Port States
Synchronization of Port Roles
Processing Superior BPDU Information
Processing Inferior BPDU Information
Detecting Unidirectional Link Failure
Port Cost
163
Port Priority 164
Rapid PVST+ and IEEE 802.1Q Trunks
Rapid PVST+ Interoperation with Legacy 802.1D STP
Rapid PVST+ Interoperation with 802.1s MST
Configuring Rapid PVST+
Enabling Rapid PVST+
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150
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151
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152
153
153
154
154
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157
159
160
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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
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