Alcatel OmniSwitch 6600 Family Network Configuration Manual page 127

Configuring Spanning Tree Parameters
-> 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 :
Protocol
mode
Priority
Bridge ID
Designated Root
Cost to Root Bridge
Root Port
Next Best Root Cost
Next Best Root Port
Hold Time
Topology Changes
Topology age
Current Parameters (seconds)
Max Age
Forward Delay
Hello Time
Parameters system uses when attempting to become root
System Max Age
System Forward Delay =
System Hello Time
-> show spantree 255 ports
Spanning Tree Port Summary for Vlan 255
Oper Path
Port St Cost
-----+-----+------+------+-----+-----+-----+----+-------------------
3/8 FORW
3/9 BLOCK 19
3/10 BLOCK 19
OmniSwitch 6600 Family Network Configuration Guide
: IEEE 802.1W (Fast STP),
: 1X1 (1 STP per Vlan),
: 32768(0x0FA0),
: 8000-00:d0:95:00:00:04,
: 000A-00:d0:95:00:00:01,
:
: Slot 3 Interface 8,
:
:
:
:
: 0:4:37
= 30,
= 15,
= 2
= 30,
15,
= 2
Desig Fw
Cost Role Tx
4 29 ROOT 1
48 BACK 0
48 ALTN 0
Sample Spanning Tree Configuration
ON,
4,
0,
None,
1,
3,
Prim. Op
Port Cnx Desig Bridge ID
3/8 NPT 000A-00:d0:95:00:00:01
3/9 NPT 8000-00:d0:95:00:00:04
3/10 NPT 8000-00:d0:95:00:00:03
April 2006 page 5-31