Cisco Nexus 5000 Series Switch CLI Software Configuration Guide (OL-16597-01, July 2009)

Enabling Rapid PVST+ per VLAN 166
Configuring the Root Bridge ID 167
Configuring a Secondary Root Bridge 168
Configuring the Rapid PVST+ Port Priority 168
Configuring the Rapid PVST+ Pathcost Method and Port Cost 169
Configuring the Rapid PVST+ Bridge Priority of a VLAN 170
Configuring the Rapid PVST+ Hello Time for a VLAN 170
Configuring the Rapid PVST+ Forward Delay Time for a VLAN 171
Configuring the Rapid PVST+ Maximum Age Time for a VLAN 171
Specifying the Link Type 172
Restarting the Protocol 172
Verifying Rapid PVST+ Configurations 172
Configuring Multiple Spanning Tree 175
Information About MST 175
MST Overview 175
MST Regions 176
MST BPDUs 176
MST Configuration Information 177
IST, CIST, and CST 177
IST, CIST, and CST Overview 177
Spanning Tree Operation Within an MST Region 178
Spanning Tree Operations Between MST Regions 178
MST Terminology 179
Hop Count 180
Boundary Ports 180
Detecting Unidirectional Link Failure 181
Port Cost and Port Priority 182
Interoperability with IEEE 802.1D 182
Interoperability with Rapid PVST+: Understanding PVST Simulation 183
Configuring MST 183
MST Configuration Guidelines 183
Enabling MST 183
Entering MST Configuration Mode 184
Specifying the MST Name 185
Specifying the MST Configuration Revision Number 185
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
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