Mst Configuration Guidelines; Enabling Mst - Cisco nexus 5000 series Cli Configuration Manual

Configuring MST
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MST Configuration Guidelines

When configuring MST, follow these guidelines:
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Enabling MST

You must enable MST; Rapid PVST+ is the default.
Changing the spanning tree mode disrupts traffic because all spanning tree instances are stopped for the
Note
previous mode and started for the new mode.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
1-10
Specifying the MST Name, page 1-12
Specifying the MST Configuration Revision Number, page 1-13
Mapping and Unmapping VLANs to MST Instances, page 1-15
Mapping Secondary VLANs to Same MSTI as Primary VLANs for Private VLANs, page 1-16
Configuring the Root Bridge, page 1-16
Configuring a Secondary Root Bridge, page 1-17
Configuring the Port Priority, page 1-18
Configuring the Port Cost, page 1-19
Configuring the Switch Priority, page 1-20
Configuring the Hello Time, page 1-21
Configuring the Forwarding-Delay Time, page 1-22
Configuring the Maximum-Aging Time, page 1-22
Configuring the Maximum-Hop Count, page 1-22
Configuring PVST Simulation Globally, page 1-23
Configuring PVST Simulation Per Port, page 1-23
Specifying the Link Type, page 1-24
Restarting the Protocol, page 1-25
When you work with private VLANs, enter the private-vlan synchronize command to map the
secondary VLANs to the same MST instance as the primary VLAN.
When you are in the MST configuration submode, the following guidelines apply:
Each command reference line creates its pending regional configuration.
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The pending region configuration starts with the current region configuration.
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To leave the MST configuration submode without committing any changes, enter the abort
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command.
To leave the MST configuration submode and commit all the changes that you made before you
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left the submode, enter the exit command.
Chapter 1 Configuring MST
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