3com S7906E Manuel De Montage
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# Activate MST region configuration.
[DeviceD-mst-region] active region-configuration
[DeviceD-mst-region] quit
# Enable MSTP globally.
[DeviceD] stp enable
6) Verifying the configurations
You can use the display stp brief command to display brief spanning tree information on each device
after the network is stable.
after the network is stable.
# Display brief spanning tree information on Device A.
[DeviceA] display stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet2/0/1 ALTE DISCARDING NONE
0 GigabitEthernet2/0/2 DESI FORWARDING NONE
0 GigabitEthernet2/0/3 ROOT FORWARDING NONE
1 GigabitEthernet2/0/1 DESI FORWARDING NONE
1 GigabitEthernet2/0/3 DESI FORWARDING NONE
3 GigabitEthernet2/0/2 DESI FORWARDING NONE
3 GigabitEthernet2/0/3 ROOT FORWARDING NONE
# Display brief spanning tree information on Device B.
[DeviceB] display stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet2/0/1 DESI FORWARDING NONE
0 GigabitEthernet2/0/2 DESI FORWARDING NONE
0 GigabitEthernet2/0/3 DESI FORWARDING NONE
1 GigabitEthernet2/0/2 DESI FORWARDING NONE
1 GigabitEthernet2/0/3 ROOT FORWARDING NONE
3 GigabitEthernet2/0/1 DESI FORWARDING NONE
3 GigabitEthernet2/0/3 DESI FORWARDING NONE
# Display brief spanning tree information on Device C.
[DeviceC] display stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet2/0/1 DESI FORWARDING NONE
0 GigabitEthernet2/0/2 ROOT FORWARDING NONE
0 GigabitEthernet2/0/3 DESI FORWARDING NONE
1 GigabitEthernet2/0/1 ROOT FORWARDING NONE
1 GigabitEthernet2/0/2 ALTE DISCARDING NONE
4 GigabitEthernet2/0/3 DESI FORWARDING NONE
# Display brief spanning tree information on Device D.
[DeviceD] display stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet2/0/1 ROOT FORWARDING NONE
0 GigabitEthernet2/0/2 ALTE DISCARDING NONE
0 GigabitEthernet2/0/3 ALTE DISCARDING NONE
3 GigabitEthernet2/0/1 ROOT FORWARDING NONE