思科pvst實現流量負載均衡
1、根據拓撲配置PC地址為192.168.1.1-192.168.1.4
2、配置下方的交換機
交換機創建vlan 10 20
Switch(config)#vlan 10
Switch(config)#vlan 20
把交換機相連的接口改成trunk
Switch(config)#Interface range f0/1-2
Switch(config-if)Switchport mode trunk
Switch(config-if)exit
接口劃入vlan
Switch(config)#interface f0/3
Switch(config-if)#switchport access vlan 10
Switch(config-if)#interface f0/4
Switch(config-if)#
2、配置左上方的交換機
交換機創建vlan 10 20
Switch(config)#vlan 10
Switch(config)#vlan 20
把交換機相連的接口改成trunk
Switch(config)#Interface range f0/1-2
Switch(config-if)Switchport mode trunk
Switch(config-if)exit
接口劃入vlan
Switch(config)#interface f0/3
Switch(config-if)#switchport access vlan 10
Switch(config-if)#switchport access vlan 20
配置此交換機為vlan 10的根，vlan 20的備份
witch(config)#spanning-tree vlan 10 root primary
Switch(config)#spanning-tree vlan 20 root secondary
4、右上方的交換機配置
交換機創建vlan 10 20
Switch(config)#vlan 10
Switch(config)#vlan 20
把交換機相連的接口改成trunk
Switch(config)#Interface range f0/1-2
Switch(config-if)exit
配置此交換機為vlan 20的根，vlan 10的備份
switch(config)#spanning-tree vlan 20 root primary
Switch(config)#spanning-tree vlan 10 root secondary
5、可以用show spanning-tree
Switch#show spanning-tree
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 000A.F37D.977E
Cost 19
Port 2(FastEthernet0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 000D.BD52.1362
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Root FWD 19 128.2 P2p
VLAN0010
Spanning tree enabled protocol ieee
Root ID Priority 24586
Address 000D.BD52.1362
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 24586 (priority 24576 sys-id-ext 10)
Address 000D.BD52.1362
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Desg FWD 19 128.2 P2p
Fa0/3 Desg FWD 19 128.3 P2p
VLAN0020
Spanning tree enabled protocol ieee
Root ID Priority 24596
Address 000A.F37D.977E
Cost 19
Port 2(FastEthernet0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 28692 (priority 28672 sys-id-ext 20)
Address 000D.BD52.1362
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Root FWD 19 128.2 P2p
Fa0/4 Desg FWD 19 128.4 P2p
可以抓包看VLAN10和VLAN20 的流量走向，VLAN10 走左邊，VLAN20 走右邊
思科pvst實現流量負載均衡