實驗時間正序目錄
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- 第六章 快速生成樹
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- 實驗背景
- Packet Tracer拓撲圖
- IP配置
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- 計算機0
- 計算機1
- 交換機配置
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- 交換機0
- 交換機1
- 網絡檢測
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- 計算機0 ping 計算機1
- 交換機配置更改
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- 交換機1
- 拓撲變更
- 網絡檢測
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- 計算機0 ping 計算機1
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第六章 快速生成樹
實驗背景
學校為了開展計算機教學和網絡辦公,建立的一個計算機教室和一個校辦公區,這
兩處的計算機網絡通過兩台交換機互聯組成内部校園網,為了提高網絡的可靠性,
作為網絡管理者,你要用 2 條鍊路将交換機互連,現要求在交換機上做适當配置,
是網絡避免環路。
Packet Tracer拓撲圖
IP配置
計算機0
IP: 192.168.1.2
子網路遮罩: AUTO
網關: 192.168.1.1
計算機1
IP: 192.168.1.3
子網路遮罩: AUTO
網關: 192.168.1.1
交換機配置
交換機0
Switch>en
Switch#show spanning-tree
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 0001.C94D.2E2B
Cost 19
Port 1(FastEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 0006.2A71.6595
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/1 Root FWD 19 128.1 P2p
Fa0/2 Altn BLK 19 128.2 P2p
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#hostname S1
S1(config)#int fa 0/3
S1(config-if)#exit
S1(config)#int rang fa 0/1-2
S1(config-if-range)#switch mode trunk
S1(config-if-range)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
exit
S1(config)#spanning-tree mode rapid-pvst
S1(config)#end
交換機1
Switch>en
Switch#conf t
Switch(config)#hostname S2
S2(config)#int range fa 0/1-2
S2(config-if-range)#switch mode trunk
S2(config-if-range)#exit
S2(config)#spanning-tree mode rapid-pvst
S2(config)#end
S2#
%SYS-5-CONFIG_I: Configured from console by console
show spanning-tree
VLAN0001
Spanning tree enabled protocol rstp
Root ID Priority 32769
Address 0001.C94D.2E2B
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 0001.C94D.2E2B
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
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/2 Desg FWD 19 128.2 P2p
網絡檢測
計算機0 ping 計算機1
檢測兩主機之間可以正常通信
交換機配置更改
交換機1
S2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
S2(config)#int fa 0/1
S2(config-if)#shut
拓撲變更
網絡檢測
計算機0 ping 計算機1
檢測兩主機之間依然可以正常通信