3Com Switch 4200G Configuration Guide

146 CHAPTER 20: MSTP CONFIGURATION
b Configure the MST region.
[4200G-mst-region] region-name example
[4200G-mst-region] instance 1 vlan 10
[4200G-mst-region] instance 3 vlan 30
[4200G-mst-region] instance 4 vlan 40
[4200G-mst-region] revision-level 0
c Activate the settings of the MST region.
[4200G-mst-region] active region-configuration
d Specify Switch A as the root bridge of spanning tree instance 1.
[4200G] stp instance 1 root primary
2 Configure Switch B.
a Enter MST region view.
<S4200G> system-view
System View: return to User View with Ctrl+Z.
[4200G] stp region-configuration
b Configure the MST region.
[4200G-mst-region] region-name example
[4200G-mst-region] instance 1 vlan 10
[4200G-mst-region] instance 3 vlan 30
[4200G-mst-region] instance 4 vlan 40
[4200G-mst-region] revision-level 0
c Activate the settings of the MST region.
[4200G-mst-region] active region-configuration
d Specify Switch B as the root bridge of spanning tree instance 3.
[4200G] stp instance 3 root primary
3 Configure Switch C.
a Enter MST region view.
<S4200G> system-view
System View: return to User View with Ctrl+Z.
[4200G] stp region-configuration
b Configure the MST region.
[4200G-mst-region] region-name example
[4200G-mst-region] instance 1 vlan 10
[4200G-mst-region] instance 3 vlan 30
[4200G-mst-region] instance 4 vlan 40
[4200G-mst-region] revision-level 0
a Activate the settings of the MST region.
[4200G-mst-region] active region-configuration
b Specify Switch C as the root bridge of spanning tree instance 4.
[4200G] stp instance 4 root primary
4 Configure Switch D.
a Enter MST region view.
<S4200G> system-view
System View: return to User View with Ctrl+Z.
[4200G] stp region-configuration