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Configuring MSTP 79
3 Configuration on Switch C
# Configure the MST region.
<3Com> system-view
[3Com] stp region-configuration
[3Com-mst-region] region-name example
[3Com-mst-region] instance 1 vlan 10
[3Com-mst-region] instance 3 vlan 30
[3Com-mst-region] instance 4 vlan 40
[3Com-mst-region] revision-level 0
# Activate the MST region configuration manually.
[3Com-mst-region] active region-configuration
# Specify Switch C as the root bridge of MSTI 4.
[3Com] stp instance 4 root primary
4 Configuration on Switch D
# Enter MST region view.
<3Com> system-view
[3Com] stp region-configuration
# Configure the MST region.
[3Com-mst-region] region-name example
[3Com-mst-region] instance 1 vlan 10
[3Com-mst-region] instance 3 vlan 30
[3Com-mst-region] instance 4 vlan 40
[3Com-mst-region] revision-level 0
# Activate the MST region configuration manually.
[3Com-mst-region] active region-configuration
Complete Configuration ■ Configuration on Switch A
#
stp instance 1 root primary
stp region-configuration
region-name example
instance 1 vlan 10
instance 3 vlan 30
instance 4 vlan 40
active region-configuration
#
■ Configuration on Switch B
#
stp instance 3 root primary
stp region-configuration
region-name example
instance 1 vlan 10
instance 3 vlan 30