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至顶网网络频道VLAN学习总结

VLAN学习总结

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VLAN学习总结

作者:中国IT实验室 2007年8月23日

关键字: VLAN 虚拟局域网 交换机 网络管理 CISCO VLAN划分 VLAN基础

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  1.定义VTP

  COS

  set vtp domain domain-name

  IOS

  

  (vlan) vtp domain domain-name

  

  或者

  

  (global) vtp domain domain-name

  

  

  2.创建VLAN

  

  COS

  

  set vlan vlan-id [name name] [state state] [mtu mtu]

  

  

  IOS

  

  (vlan) vlan vlan-id [name vlan-name] [state {suspend | active}] [mtu mtu-size]

  

  

  (global) vlan vlan-id

  

  

  (vlan-config) vlan vlan-id [mtu mtu-size] [name vlan-name] [state {suspend | active}]

  

  

  举例

  

  CatOS

  

  (enable)>set vtp mode transparent

  

  (enable)>set vlan 5 name Cameron

  

  (enable)>set vlan 8 name Logan

  

  (enable)>set vlan 10 name Katie

  

  (enable)>set spantree macreduction enable

  

  (enable)>set vlan 2112 name Rush

  

  (enable)>

  

  

  IOS

  

  #vlan database

  

  (vlan)#vtp transparent

  

  (vlan)#vlan 5 name Cameron

  

  (vlan)#vlan 8 name Logan

  

  (vlan)#vlan 10 name Katie

  

  (vlan)#exit

  

  #copy running-config startup-config

  

  

  TRUNK

  

  An example of the Catalyst OS configuration for Distribution_1 follows:

  

  

  Distribution_1 (enable)>clear trunk 1/1 2-1001

  

  Distribution_1 (enable)>set trunk 1/1 desirable isl 10

  

  Distribution_1 (enable)>clear trunk 2/1 2-1001

  

  Distribution_1 (enable)>set trunk 2/1 on dot1q 5,8,10

  

  An example of the Catalyst OS configuration for Core_1 follows:

  

  

  Core_1 (enable)>clear trunk 1/1 2-1001

  

  Core_1 (enable)>set trunk 1/1 10

  

  An example of the Supervisor IOS configuration for Core_1 follows:

  

  

  Core_1(config)#interface gigabitethernet 1/1

  

  Core_1(config-if)#switchport encapsulation negotiate

  

  Core_1(config-if)#switchport mode dynamic auto

  

  Core_1(config-if)#switchport trunk allowed vlan remove 2-1001

  

  Core_1(config-if)#switchport trunk allowed vlan add 10

  

  Core_1 (config-if)#end

  

  Core_1#copy running-config startup-config

  

  An example of the Layer 2 IOS configuration for Access_1 follows:

  

  

  Access_1 (config)#interface gigabitethernet 0/1

  

  Access_1 (config-if)#switchport mode trunk

  

  Access_1 (config-if)#switchport trunk encapsulation dot1q

  

  Access_1 (config-if)#switchport trunk allowed vlan remove 2-1001

  

  Access_1 (config-if)#switchport trunk allowed vlan add 5,8,10

  

  Access_1 (config-if)#end

  

  Access_1#copy running-config startup-config

  

  

  An example of the Catalyst OS configuration for Core_1 follows:

  

  

  Core_1 (enable)>set vtp mode transparent

  

  Core_1 (enable)>set trunk 1/1 on isl

  

  Core_1 (enable)>set trunk 1/2 on isl

  

  Core_1 (enable)>

  

  An example of the Catalyst OS configuration for Distribution_1 follows:

  

  

  Distribution_1 (enable)>set vtp domain GO-CATS

  

  Distribution_1 (enable)>set trunk 1/1 on isl

  

  Distribution_1 (enable)>set trunk 2/1 on dot1Q

  

  Distribution_1 (enable)>set vtp pruning enable

  

  Distribution_1 (enable)>clear vtp pruneeligible 10

  

  An example of the Catalyst OS configuration for Distribution_2 follows:

  

  

  Distribution_2 (enable)>set trunk 1/1 on isl

  

  Distribution_2 (enable)>clear vtp pruneeligible 10

  

  An example of the Layer 2 IOS configuration for Access_1 follows:

  

  

  Access_1#vlan database

  

  Access_1 (vlan)#vtp client

  

  Access_1 (vlan)#exit

  

  Access_1 #config t

  

  Access_1 (config)#interface gigabitethernet 0/1

  

  Access_1 (config-if)#switchport mode trunk

  

  Access_1 (config-if)#switchport trunk encapsulation dot1Q

  

  Access_1 (config-if)#switchport trunk pruning vlan remove 10

  Access_1 (config-if)#end

  Access_1#copy running-config startup-config

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