3Com Switch 8800 Advanced Software V5 Configuration Guide

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136 CHAPTER 11: MSTP CONFIGURATION

<SysnameB> system-view

[SysnameB] stp region-configuration

[SysnameB-mst-region] region-name example

[SysnameB-mst-region] instance 1 vlan 10

[SysnameB-mst-region] instance 3 vlan 30

[SysnameB-mst-region] instance 4 vlan 40

[SysnameB-mst-region] revision-level 0

# Activate MST region configuration manually.

[SysnameB-mst-region] active region-configuration

[SysnameB-mst-region] quit

# Configure Switch B as the root bridge of MST instance 3.

[SysnameB] stp instance 3 root primary

# View the MST region configuration information that has taken effect.

[SysnameB] display stp region-configuration

Oper configuration

Format selector :0

Region name :example

Revision level :0

Instance Vlans Mapped

0 1 to 9, 11 to 29, 31 to 39, 41 to 4094

1 10

3 30

4 40

3 Configuration on Switch C

# Configure an MST region.

<SysnameC> system-view

[SysnameC] stp region-configuration

[SysnameC-mst-region] region-name example

[SysnameC-mst-region] instance 1 vlan 10

[SysnameC-mst-region] instance 3 vlan 30

[SysnameC-mst-region] instance 4 vlan 40

[SysnameC-mst-region] revision-level 0

# Activate MST region configuration manually.

[SysnameC-mst-region] active region-configuration

[SysnameC-mst-region] quit

# Configure Switch C as the root bridge of MST instance 4.

[SysnameC] stp instance 4 root primary