VLAN Configuration for Cisco switches

1. VLAN: Virtual LAN, is the logical combination of switch ports, VLAN work in the second layer of OSI, a VLAN is a broadcast domain, the communication between the VLAN is through the 3rd layer of routers to complete.

2. VLAN Advantages:

Broadcast problem of 1> control network

2> simplifies network management

3> improve the security of the network

3. The allocation method of which VLAN in the switch

1> VLAN: Designate one end of the switch as a member of a VLAN

2> mac-based VLAN: The switch decides which VLAN to place on the MAC address of the node

4. Single Switch partition VLAN

Topology map

More Wonderful content: http://www.bianceng.cnhttp://www.bianceng.cn/Network/jhjs/

Prepare the stage, let Pc0 ping pc1 first, found that can ping pass

1> after entering the precinct configuration mode, create the Vlan2

Switch (config) #vlan 2

Switch (Config-vlan) #

2> exit vlan2, create Vlan3

Switch (Config-vlan) #exit

Switch (config) #vlan 3

Switch (Config-vlan) #

3> the port 1,2,3 into vlan2

Switch (config) #int range f0/1-3

Switch (Config-if-range) #switch mode access

Switch (config-if-range) #switch Access VLAN 2

If you divide the error, you can enter the port to use the command

Switch (config-if-range) #no switch Access VLAN 2

You can remove this port from this VLAN

4> the port 4,5,6 into the port vlan3

Switch (config) #int range f0/4-6

Switch (config-if-range) #switch Access VLAN 3

5> in privileged mode show VLAN can see configuration

2 VLAN0002 Active FA0/1, FA0/2, FA0/3

3 VLAN0003 Active FA0/4, FA0/5, FA0/6

6> Verify use pc0 to ping pc1 to see if it can ping

This article is from "Guo Understand blog" blog, please be sure to keep this source http://guodong810.blog.51cto.com/4046313/1019422