> For the complete documentation index, see [llms.txt](https://anida-huang.gitbook.io/computer-network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://anida-huang.gitbook.io/computer-network/qi-mo/20201216-cisco-vlan.md). # 20201216 cisco VLAN ## 課堂資料 {% embed url="" %} {% embed url="" %} ### VLAN 的介绍 | Switch | | | ----------- | ------------ | | broadcast | 採用"**廣播方式"** | | multicast | 採用"**廣播方式"** | | Fwarding DB | 採用"**廣播方式"** | {% hint style="info" %} VLAN TAG 包的 VLAN ID 號，有效範圍是`1-4094`，0 和 4095 都為協議保留值，VLAN ID 0 表示不屬於任何 VLAN。 `1`为系统默认 VLAN，即 Native VLAN。默认情况下，所有的接口都属于 VLAN1. 当交换机收到未带有 VLAN TAG 包的数据帧时，会将数据包转发至 Native VLAN 端口。 `2-1001`是普通的 VLAN，`1006-1024`保留仅系统使用，用户不能查看和使用，`1002-1005`是支持 fddi 和令牌环的 VLAN，`1025-4095`是扩展的 VLAN。 {% endhint %} ### VLAN 802.1q ![802.1q VLAN](/files/-MOd92kGl9wgMdi_iT-f) ### VLAN VTP ( VLAN Trunking Protocol ) > #### VTP mode | VTP | | | ----------- | --------------------- | | Server | 能創建、刪除、修改 VLAN | | Client | 不能創建、刪除、修改 VLAN，能學習轉發 | | Transparent | 能創建、刪除、修改 VLAN，不能學習轉發 | ## 課堂練習 ### VLAN 802.1q #### Part 01. ![](/files/-MOdhGRrkUlrefc_ukWQ) {% tabs %} {% tab title="VPC 2" %} ``` ip 192.168.1.1 255.255.255.0 ``` ``` ping 192.168.1.2 ``` ``` ping 192.168.1.3 ``` ``` ping 192.168.1.4 ``` ![](/files/-MPMfmuKyclB126E78zL) {% endtab %} {% tab title="VPC 3" %} ``` ip 192.168.1.2 255.255.255.0 ``` ``` ping 192.168.1.1 ``` ``` ping 192.168.1.3 ``` ``` ping 192.168.1.4 ``` ![](/files/-MPMg7znx5kRihZiOVFG) {% endtab %} {% tab title="VPC 4" %} ``` ip 192.168.1.3 255.255.255.0 ``` ``` ping 192.168.1.1 ``` ``` ping 192.168.1.2 ``` ``` ping 192.168.1.4 ``` ![](/files/-MPMhxLOuQ8d3s8C_25v) {% endtab %} {% tab title="VPC 5" %} ``` ip 192.168.1.4 255.255.255.0 ``` ``` ping 192.168.1.1 ``` ``` ping 192.168.1.2 ``` ``` ping 192.168.1.3 ``` ![](/files/-MPMiJj_eB9pJRnJnlaN) {% endtab %} {% tab title="SW" %} ``` vlan 10 ``` ``` name Vlan10 ``` ``` exit ``` ``` vlan 20 ``` ``` name Vlan20 ``` ``` do sh vlan brief ``` ``` int e0/0 ``` ``` switchport mode access ``` ``` switchport access vlan 10 ``` ``` int e0/1 ``` ``` switchport mode access ``` ``` switchport access vlan 10 ``` ``` int e0/2 ``` ``` switchport mode access ``` ``` switchport access vlan 20 ``` ``` int e0/3 ``` ``` switchport mode access ``` ``` switchport access vlan 20 ``` ``` do sh vlan brief ``` ![](/files/-MPMpFqfluGNw73Lyuzg) {% endtab %} {% endtabs %} #### Part 02. ![](/files/-MPMuDuQ-CUlcgTy_FpO) {% tabs %} {% tab title="VPC 2" %} ``` ip 192.168.1.1 255.255.255.0 ``` ``` ping 192.168.1.2 ``` ``` ping 192.168.1.3 ``` ``` ping 192.168.1.4 ``` ![](/files/-MPMssuvwcX38c7Mi_bd) {% endtab %} {% tab title="VPC 3" %} ``` ip 192.168.1.2 255.255.255.0 ``` ``` ping 192.168.1.1 ``` ``` ping 192.168.1.3 ``` ``` ping 192.168.1.4 ``` ![](/files/-MPMt5U3e6C_GLN9-bFW) {% endtab %} {% tab title="SW 1" %} ``` vlan 10 ``` ``` name Vlan10 ``` ``` exit ``` ``` vlan 20 ``` ``` name Vlan20 ``` ``` do sh vlan brief ``` ``` int e0/0 ``` ``` switchport mode access ``` ``` switchport access vlan 10 ``` ``` int e0/1 ``` ``` switchport mode access ``` ``` switchport access vlan 20 ``` ``` int e0/2 ``` ``` switchport mode access ``` ``` switchport access vlan 10 ``` ``` int e0/3 ``` ``` switchport mode access ``` ``` switchport access vlan 20 ``` ``` do sh vlan brief ``` ![](/files/-MPMs8Z74GTeLludtPcA) {% endtab %} {% tab title="VPC 4" %} ``` ip 192.168.1.3 255.255.255.0 ``` ``` ping 192.168.1.1 ``` ``` ping 192.168.1.2 ``` ``` ping 192.168.1.4 ``` ![](/files/-MPMtJIKVbPB75VqVJxx) {% endtab %} {% tab title="VPC 5" %} ``` ip 192.168.1.4 255.255.255.0 ``` ``` ping 192.168.1.1 ``` ``` ping 192.168.1.2 ``` ``` ping 192.168.1.3 ``` ![](/files/-MPMtZXbUD0ySvvC8VHi) {% endtab %} {% tab title="SW 2" %} ``` vlan 10 ``` ``` name Vlan10 ``` ``` exit ``` ``` vlan 20 ``` ``` name Vlan20 ``` ``` do sh vlan brief ``` ``` int range e0/0,e0/2 ``` ``` switchport mode access ``` ``` switchport access vlan 10 ``` ``` int range e0/1,e0/3 ``` ``` switchport mode access ``` ``` switchport access vlan 20 ``` ``` do sh vlan brief ``` ![](/files/-MPMsaBhMcw4G02ChLih) {% endtab %} {% endtabs %} ### VLAN VTP #### Part 01. ![](/files/-MPN6Xdn79eu-_JgX6xK) {% tabs %} {% tab title="sw1" %} > #### VTP Server 設定 ``` vtp domain mynet ``` ``` vtp password cisco ``` ``` do sh vtp status ``` ``` do sh vtp password ``` ``` vlan 11-15,1006 ``` ``` do sh vlan brief ``` ``` int e0/0 ``` ``` switchport trunk encapsulation dot1q ``` ``` switchport mode trunk ``` ``` do sh vlan brief ``` ![](/files/-MPN70fRcuYUqlNbWcRz) ![](/files/-MPN8vkS5WHiL04o6eEs) {% endtab %} {% tab title="sw2" %} > #### VTP Client 設定 ``` vtp mode client ``` ``` vtp domain mynet ``` ``` vtp password cisco ``` ``` do sh vtp status ``` ``` do sh vlan brief ``` ``` int e0/0 ``` ``` switchport trunk encapsulation dot1q ``` ``` switchport mode trunk ``` ``` do sh vlan brief ``` ![](/files/-MPN7UmAp8vNC415t9WH) {% endtab %} {% endtabs %} #### Part 02. ![](/files/-MPNCR2PKUVzUH0cjMxy) {% tabs %} {% tab title="sw1" %} ``` no vlan 13 ``` ``` do sh vlan brief ``` ``` no vlan 11 ``` ``` do sh vlan brief ``` ![](/files/-MPNCl87A_9qRYhTEhU2) ``` vlan 20,21,22 ``` ``` do sh vlan brief ``` ![](/files/-MPNCwBiHCIt3sHq1m3S) {% endtab %} {% tab title="sw2" %} ``` do sh vlan brief ``` ``` no vlan 12 ``` ``` vlan 16 ``` ``` int e0/1 ``` ``` switchport trunk encapsulation dot1q ``` ``` switchport mode trunk ``` ``` do sh vlan brief ``` ``` exit ``` ``` vtp mode transparent ``` ``` do sh vtp status ``` ![](/files/-MPNDxMtrvHvxk9sekW7) ``` do sh vlan brief ``` ``` vlan 30 ``` ``` do sh vlan brief ``` ![](/files/-MPNEOoD5dl3dgCb8DD5) {% endtab %} {% tab title="sw3" %} ``` vtp mode client ``` ``` vtp domain mynet ``` ``` do sh vtp status ``` ``` do sh vlan brief ``` ``` int e0/0 ``` ``` switchport trunk encapsulation dot1q ``` ``` switchport mode trunk ``` ``` do sh vlan brief ``` ![](/files/-MPNDXP3IVkxmgQgGfQ6) {% endtab %} {% endtabs %}