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Configuring Spanning Tree Parameters Sample Spanning Tree Configuration
OmniSwitch 6600 Family Network Configuration Guide April 2006 page 5-31
-> bridge 255 priority 10
VLAN 255 on Switch D will have the lowest Bridge ID priority value of all four switches, which will
qualify it as the Spanning Tree root VLAN for the VLAN 255 broadcast domain.
Note. To verify the VLAN 255 Spanning Tree configuration on each switch use the following show
commands. The following outputs are for example purposes only and may not match values shown in the
sample network configuration:
-> show spantree 255
Spanning Tree Parameters for Vlan 255
Spanning Tree Status : ON,
Protocol : IEEE 802.1W (Fast STP),
mode : 1X1 (1 STP per Vlan),
Priority : 32768(0x0FA0),
Bridge ID : 8000-00:d0:95:00:00:04,
Designated Root : 000A-00:d0:95:00:00:01,
Cost to Root Bridge : 4,
Root Port : Slot 3 Interface 8,
Next Best Root Cost : 0,
Next Best Root Port : None,
Hold Time : 1,
Topology Changes : 3,
Topology age : 0:4:37
Current Parameters (seconds)
Max Age = 30,
Forward Delay = 15,
Hello Time = 2
Parameters system uses when attempting to become root
System Max Age = 30,
System Forward Delay = 15,
System Hello Time = 2
-> show spantree 255 ports
Spanning Tree Port Summary for Vlan 255
Oper Path Desig Fw Prim. Op
Port St Cost Cost Role Tx Port Cnx Desig Bridge ID
-----+-----+------+------+-----+-----+-----+----+-------------------
3/8 FORW 4 29 ROOT 1 3/8 NPT 000A-00:d0:95:00:00:01
3/9 BLOCK 19 48 BACK 0 3/9 NPT 8000-00:d0:95:00:00:04
3/10 BLOCK 19 48 ALTN 0 3/10 NPT 8000-00:d0:95:00:00:03