Catalog

VLAN Overview and advantages of

VLAN The advantages of

VLAN species

VLAN ID Range

Three interface modes of switch （ Jane ）

Switch vlan Interface type

Commonly used VLAN Instructions

Summary

VLAN Overview and advantages of

Split the broadcast domain
Physical segmentation
Logical segmentation （ Split through the software of the switch ）

VLAN The advantages of

Control broadcast
Enhance network security
Simplify network management

VLAN species

static state VLAN： Static partition based on ports VLAN
dynamic VLAN： be based on MAC Address partition dynamic VLAN

VLAN ID Range

0,4095 ： System use only , Users cannot view and use these VLAN

1-4094： Huawei normally uses ：2-1001

Three interface modes of switch （ Jane ）

access： Access link It can only belong to one vlan. Generally used to connect computer ports
trunk： Relay link More than one... Can be allowed vlan adopt , Can receive and send multiple vlan message ,
Generally used for switches and switch related interfaces
hybrid： Huawei defaults to More than one... Can be allowed vlan adopt , Can receive and send multiple vlan message , It can be used for inter switch connection
It can also be used to connect user computers

Switch vlan Interface type

1 access Interface type Access mode   Generally used to connect Port of computer or router
          effect ： When data enters the switch , In the play vlan label , Take it off when leaving the switch vlan label
2 trunk relay Commonly used in Connect the ports between switches
          effect ： Used to identify Releasable vlan label
3 hybrid： Huawei private agreement The default interface type of Huawei switch interface

Commonly used VLAN Instructions

Add ports to VLAN,Access Mouth can only belong to 1 individual VLAN, Generally used to connect computer ports .
[Huawei] int e0/0/0( Enter interface mode )
[Huawei-Ethernet0/0/0] port link-typeaccess ( Define the layer 2 port as access Pattern )
[Huawei-Ethernet0/0/0] port default vlan 10 ( Add ports to vlan in )
[Huawei-Ethernet0/0/0] undo shutdown ( Open port )
Remove the port from vlan Delete
[Huawei-Ethernet0/0/0] undo port default vlan
[Huawei -Ethernet0/0/0] port link-type hybrid ( Restore the port type to the default hvbrid Pattern )
View the current port mode 、 state
[Huawei-Ethernet0/0/0] dis this

Join multiple ports at the same time VLAN
[Huawei] port-group1( New group 1)
[Huawei-port-group- 1] group-member Ethernet 0/0/1 to Ethernet 0/0/20( Group 1 Members of are e0/0/1 To e0/0/20)
[Huawei -port-group- 1] port link-type access[Huawei-port-group-1]port default vlan 30 Restore the port to the default configuration , Be careful , After executing the order , The interface will be shutdown
[Huawei] clear confiquration interface e0/0/1

View specified VLAN Information dis vlan 10

 port link-type trunk   Set relay
 port trunk allow-pass vlan 10 20   Set what can pass vlan
 

Summary

VLAN Is a logically isolated virtual lan

VLAN Be able to isolate the broadcast domain , Improve safety , simplified model

VLAN Divided into dynamic VLAN And static VLAN

static state VLAN There are two configurations ：VLAN Database and global configuration