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报告2 跨交换机实现VLAN日期： 2010.3.30 专业：计算机应用技术 班级：08112 学号：35 姓名： 古小燕 【实验名称】跨交换机实现VLAN. 【实验目的】理解VLAN如何跨交换机实现. 【背景描述】假设某企业有2个主要部门:销售部和技术部,其中销售部门的个人计算机系统分散连接在2台交换机上,他们之间需要相互连接通信,但为了数据安全起见,销售部和技术部须要进行相互隔离,现要在交换机上做适当配置来事项这一目标. 【实现功能】使在同一VLAN里的计算机系统能快乐交换机进行相互通信,而在不同VLAN 里的计算机系统不能进行相互通信. 【实验拓扑】 【实验设备】S2126 (2台) 【实验步骤】步骤1.按拓扑图接好设备，验证PC1、PC2和PC3间能互相通信。步骤2.在交换机SwitchA上创建VLAN10,并将0/1端口划分到VLAN 10 中.VLAN Name Status Ports- - - -1 default active Fa0/2 ,Fa0/3 ,Fa0/4 Fa0/5 ,Fa0/6 ,Fa0/7 Fa0/9 ,Fa0/10,Fa0/11 Fa0/12,Fa0/13,Fa0/14 Fa0/15,Fa0/16,Fa0/17 Fa0/18,Fa0/19,Fa0/20 Fa0/21,Fa0/22,Fa0/23 Fa0/2410 VLAN0010 active Fa0/1 ,Fa0/8100 test1 activeswitch2#步骤3.在交换机SwitchA上创建VLAN 20 ,并将0/2端口划分到VLAN20中.VLAN Name Status Ports- - - -1 default active Fa0/1 ,Fa0/2 ,Fa0/4 ,Fa0/6 Fa0/7 ,Fa0/9 ,Fa0/10,Fa0/11 Fa0/12,Fa0/13,Fa0/14,Fa0/15 Fa0/16,Fa0/17,Fa0/18,Fa0/19 Fa0/20,Fa0/21,Fa0/22,Fa0/23 Fa0/24,Gi0/25,Gi0/26,Gi0/27 Gi0/282 test1 active Fa0/310 VLAN0010 active Fa0/820 VLAN0020 active Fa0/5switch1#验证测试： switchA#show vlan 步骤4.在交换机SwitchB上创建VLAN 10 ,并将0/5端口划分到VLAN10中.VLAN Name Status Ports- - - -1 default active Fa0/1 ,Fa0/2 ,Fa0/4 ,Fa0/6 Fa0/7 ,Fa0/9 ,Fa0/10,Fa0/11 Fa0/12,Fa0/13,Fa0/14,Fa0/15 Fa0/16,Fa0/17,Fa0/18,Fa0/19 Fa0/20,Fa0/21,Fa0/22,Fa0/23 Fa0/24,Gi0/25,Gi0/26,Gi0/27 Gi0/282 test1 active Fa0/310 VLAN0010 active Fa0/1，0/520 VLAN0020 active Fa0/2验证测试：PC1、PC2和PC3间都不能相互通信步骤5.在交换机SwitchA上将与SwitchB相连的端口(假设为0/24端口)定义为tag vlan 模式。在交换机SwitchB上将与SwitchA相连的端口(假设为0/24端口)定义为tag vlan模式.VLAN Name Status Ports- - - -1 default active Fa0/2 ,Fa0/3 ,Fa0/4 Fa0/5 ,Fa0/6 ,Fa0/7 Fa0/9 ,Fa0/10,Fa0/11 Fa0/12,Fa0/13,Fa0/14 Fa0/15,Fa0/16,Fa0/17 Fa0/18,Fa0/19,Fa0/20 Fa0/21,Fa0/22,Fa0/23 Fa0/2410 VLAN0010 active Fa0/1 ,Fa0/8 ,Fa0/24100 test1 active Fa0/24switch2#VLAN Name Status Ports- - - -1 default active Fa0/1 ,Fa0/2 ,Fa0/4 ,Fa0/6 Fa0/7 ,Fa0/9 ,Fa0/10,Fa0/11 Fa0/12,Fa0/13,Fa0/14,Fa0/15 Fa0/16,Fa0/17,Fa0/18,Fa0/19 Fa0/20,Fa0/21,Fa0/22,Fa0/23 Fa0/24,Gi0/25,Gi0/26,Gi0/27 Gi0/282 test1 active Fa0/3 ,Fa0/2410 VLAN0010 active Fa0/8 ,Fa0/2420 VLAN0020 active Fa0/5 ,Fa0/24switch1#步骤6.验证PC1与PC3能互相通信,但PC2与PC3不能互相通信. 【注意事项】两台交换机之间相连的端口应该设置为tag vlan 模式. 【思考】1、完成步骤4后，验证测试时，PC1、PC2和PC3间为什么不能相互通信？他们虽在同一个局域网中但是却不在同一个vlan中。2、完成步骤6后，为什么PC1与PC3能互相通信,但PC2与PC3不能互相通信？PC1与PC3因为他们在同一个vlan中，PC2与PC3在不同vlan中。
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