System will display MST information for all instances when executing the
command without instance-id parameter.
switch# show spanning-tree mst 1
## MST01
Vlans mapped: 2
Bridge Address 00:50:ba:fd:51:49 Priority 32768
Root Address 00:50:ba:fd:51:49 Priority 32768
Root this switch for MST01
Interface Role Sts Cost Prio.Nbr Type
--------- ---- --- ---- -------- ----
Fa0/1 Master Forwarding 2000000 128.1 SharedLan
switch# show spanning-tree mst 1 detail
## MST01
Vlans mapped: 2
Bridge Address 00:50:ba:fd:51:49 Priority 32768
Root Address 00:50:ba:fd:51:49 Priority 32768
Root this switch for MST01
Fa0/1 of MST01 is Master , Forwarding
Port info port id 128.1 priority 128 cost 2000000
Designated root address 00:50:ba:fd:51:49 priority 32768 cost
0
Designated bridge address 00:50:ba:fd:51:49 priority 32768 port
id 128.1