PVST+ Configuration Examples
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197
Alcatel-Lucent
Beta
Beta
CLI Configuration Guide
P
ROCEDURE
By default, all switchports will be in bridged mode. They belong to 1 broadcast
domain. Spanning tree can be enabled (recommended) by using the following
commands:
ALU(config)#interface switchport 1/0
ALU(config-if switchport1/0)#no shutdown
ALU(config-if switchport1/0)#interface switchport 1/1
ALU(config-if switchport1/1)#no shutdown
ALU(config-if switchport1/1)#interface switchport 1/2
ALU(config-if switchport1/2)#no shutdown
ALU(config-if switchport1/2)#interface switchport 1/3
ALU(config-if switchport1/3)#no shutdown
ALU(config-if switchport1/3)#interface switchport 1/4
ALU(config-if switchport1/4)#no shutdown
ALU(config-if switchport1/4)#interface switchport 1/5
ALU(config-if switchport1/5)#no shutdown
ALU(config)# spanning-tree
ALU(config-if switchport1/2)#interface switchport 1/0
ALU(config-if switchport1/0)#spanning-tree cost 1000
C
HECK
THE
C
ONFIGURATION
WITH
THE
S
HOW
C
OMMAND
ALU(config)# show spanning-tree brief vlan 1
VLAN1
Spanning tree enabled protocol IEEE
ROOT ID Priority 32768
Address 00.11.8b.00.27.12
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32768
Address 00.11.8b.00.27.12
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Port Designated
Name Port ID Prio Cost Sts Cost Bridge ID Port ID
-------------- ------- ---- ---- --- ---- ----------------
switchport1/0 128.8 128 4 FWD 0 00.11.8b.00.27.12 128.8
switchport1/1 128.7 128 4 FWD 0 00.11.8b.00.27.12 128.7
switchport1/2 128.6 128 4 FWD 0 00.11.8b.00.27.12 128.6
switchport1/3 128.5 128 4 FWD 0 00.11.8b.00.27.12 128.5
switchport1/4 128.4 128 4 FWD 0 00.11.8b.00.27.12 128.4
switchport1/5 128.3 128 4 FWD 0 00.11.8b.00.27.12 128.3
switchport1/6 128.2 128 4 DIS 0 00.11.8b.00.27.12 128.2
switchport1/7 128.1 128 4 DIS 0 00.11.8b.00.27.12 128.1
C
HECK
FOR
R
EACHABILITY
B
ETWEEN
H
OSTS
This can be verified with ping from, say Host 1 to Host 5.
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