实验拓扑

该实验为三层交换机基础实验。共划分2个vlan(Virtual Local Area Network:虚拟局域网)vlan编号划分范围为2-1001。PC配置过程略。(注意配置网关)

在这里插入图片描述

交换机配置

二层交换机配置流程

  1. 创建VLAN
  2. 将交换机的端口加入到对应VLAN中
  3. 验证VLAN配置

三层交换机配置流程

  1. 创建VLAN
  2. 配置对应VLAN的网关
  3. 将交换机的端口加入到对应VLAN中
  4. 验证VLAN配置

实验目的

划分不同VLAN区域,通过配置三层交换机,实现跨VLAN通信

LSW1配置

<Huawei>system-view     ### 进入系统界面
[Huawei]sysname SW1		### 设备名称更改为SW1
[SW1]vlan batch 2 3		### 创建vlan 2 3
[SW1]int e0/0/1			### 进入接口e0/0/1
[SW1-Ethernet0/0/1]port link-type access		### 连接类型为access,仅允许该vlan数据传输,简写[SW1-Ethernet0/0/1]p l a
[SW1-Ethernet0/0/1]port default vlan 2		###  该连接连接虚拟局域网2 简写[SW1-Ethernet0/0/1]p d v 2
[SW1-Ethernet0/0/1]undo shutdown		### 刷新该接口,简写[SW1-Ethernet0/0/1]un sh
[SW1-Ethernet0/0/1]int e0/0/2		### 进入接口e0/0/2
[SW1-Ethernet0/0/2]p l a            ### port link-type access缩写 
[SW1-Ethernet0/0/2]p d v 3			### port default vlan 3缩写
[SW1-Ethernet0/0/2]un sh			### undo shutdown缩写
[SW1-Ethernet0/0/2]int g0/0/1		### 进入接口g0/0/1
[SW1-GigabitEthernet0/0/1]port link-type trunk 		### 配置连接为中继模式,可传输不同vlan数据
[SW1-GigabitEthernet0/0/1]port trunk allow-pass vlan all 		### 可让所有vlan数据通过,port trunk allow-pass vlan XX XX可设置指定vlan数据通过
[SW1-GigabitEthernet0/0/1]un sh
[SW1-GigabitEthernet0/0/1]int g0/0/2
[SW1-GigabitEthernet0/0/2]p l t		### port link-type trunk的缩写
[SW1-GigabitEthernet0/0/2]p t a v a		### port trunk allow-pass vlan all 缩写
[SW1-GigabitEthernet0/0/2]q		### 退出接口模式
[SW1]dis current-configuration 		### 展示当前配置,节选
#
interface Ethernet0/0/1
 port link-type access
 port default vlan 2
#
interface Ethernet0/0/2
 port link-type access
 port default vlan 3
#

#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#

LSW2配置

<Huawei>sys				### system-view缩写
[Huawei]sysname SW2
[SW2]v b 2 3 			### vlan batch 2 3缩写
[SW2]int e0/0/1
[SW2-Ethernet0/0/1]p l a
[SW2-Ethernet0/0/1]p d v 2
[SW2-Ethernet0/0/1]un sh
[SW2-Ethernet0/0/2]p l a
[SW2-Ethernet0/0/2]p d v 3
[SW2-Ethernet0/0/2]un sh 
[SW2-Ethernet0/0/2]int g0/0/1
[SW2-GigabitEthernet0/0/1]p l t
[SW2-GigabitEthernet0/0/1]p t a v a
[SW2-GigabitEthernet0/0/1]un sh
[SW2-GigabitEthernet0/0/1]q
[SW2]dis cu			### display current-configuration缩写,以下信息为节选信息
#
interface Ethernet0/0/1
 port link-type access
 port default vlan 2
#
interface Ethernet0/0/2
 port link-type access
 port default vlan 3
#
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#

LSW3配置

<Huawei>sys
[Huawei]sysname SW3
[SW3]v b 2 3
[SW3]int vlanif 2		### 进入虚拟局域网2
[SW3-Vlanif2]ip address 192.168.2.1 24		### 配置虚拟局域网2的网关为192.168.2.1 子网掩码为255.255.255.0
[SW3-Vlanif2]q			### 退出至接口模式
[SW3]int vlanif 3		
[SW3-Vlanif3]ip add 192.168.3.1 24		### ip address 192.168.3.1 24缩写
[SW3-Vlanif3]q
[SW3]int g0/0/2
[SW3-GigabitEthernet0/0/2]p l t
[SW3-GigabitEthernet0/0/2]p t a v a		
[SW3-GigabitEthernet0/0/2]un sh	
[SW3-GigabitEthernet0/0/2]q
[SW3]dis current-configuration 
#
interface Vlanif2
 ip address 192.168.2.1 255.255.255.0
#
interface Vlanif3
 ip address 192.168.3.1 255.255.255.0
#	
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#	
[SW3]dis vlan		### 查看vlan表,vlan1为默认配置
The total number of vlans is : 3
--------------------------------------------------------------------------------
U: Up;         D: Down;         TG: Tagged;         UT: Untagged;
MP: Vlan-mapping;               ST: Vlan-stacking;
#: ProtocolTransparent-vlan;    *: Management-vlan;
--------------------------------------------------------------------------------

VID  Type    Ports                                                          
--------------------------------------------------------------------------------
1    common  UT:GE0/0/1(D)      GE0/0/2(U)      GE0/0/3(D)      GE0/0/4(D)      
                GE0/0/5(D)      GE0/0/6(D)      GE0/0/7(D)      GE0/0/8(D)      
                GE0/0/9(D)      GE0/0/10(D)     GE0/0/11(D)     GE0/0/12(D)     
                GE0/0/13(D)     GE0/0/14(D)     GE0/0/15(D)     GE0/0/16(D)     
                GE0/0/17(D)     GE0/0/18(D)     GE0/0/19(D)     GE0/0/20(D)     
                GE0/0/21(D)     GE0/0/22(D)     GE0/0/23(D)     GE0/0/24(D)     

2    common  TG:GE0/0/2(U)                                                      

3    common  TG:GE0/0/2(U)                                                      


VID  Status  Property      MAC-LRN Statistics Description      
--------------------------------------------------------------------------------

1    enable  default       enable  disable    VLAN 0001                         
2    enable  default       enable  disable    VLAN 0002                         
3    enable  default       enable  disable    VLAN 0003   

测通实验

PC1 ping PC3,PC1 ping PC4

PC>ping 192.168.2.20

Ping 192.168.2.20: 32 data bytes, Press Ctrl_C to break
From 192.168.2.20: bytes=32 seq=1 ttl=127 time=93 ms
From 192.168.2.20: bytes=32 seq=2 ttl=127 time=94 ms
From 192.168.2.20: bytes=32 seq=3 ttl=127 time=79 ms
From 192.168.2.20: bytes=32 seq=4 ttl=127 time=94 ms
From 192.168.2.20: bytes=32 seq=5 ttl=127 time=93 ms

--- 192.168.2.20 ping statistics ---
  5 packet(s) transmitted
  5 packet(s) received
  0.00% packet loss
  round-trip min/avg/max = 79/90/94 ms

PC>ping 192.168.3.20

Ping 192.168.3.20: 32 data bytes, Press Ctrl_C to break
From 192.168.3.20: bytes=32 seq=1 ttl=127 time=156 ms
From 192.168.3.20: bytes=32 seq=2 ttl=127 time=125 ms
From 192.168.3.20: bytes=32 seq=3 ttl=127 time=125 ms
From 192.168.3.20: bytes=32 seq=4 ttl=127 time=109 ms
From 192.168.3.20: bytes=32 seq=5 ttl=127 time=109 ms

--- 192.168.3.20 ping statistics ---
  5 packet(s) transmitted
  5 packet(s) received
  0.00% packet loss
  round-trip min/avg/max = 109/124/156 ms

知识扩展

VLAN的范围

VLAN ID 范围范围用途
0,4095保留仅限系统使用,用户不能查看使用这些VLAN
1正常默认VLAN,用户能够使用该VLAN,但不能删除它
2-1001正常用于以太网的VLAN,用户可以创建、使用和删除这些VLAN
1002-1005正常用于FDDI和令牌环默认VLAN,用户不能删除这些VLAN
1006-1024保留仅限系统使用,用户不能查看和使用这些VLAN
105-4091扩展仅用于以太网VLAN

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