Saturday, October 8, 2011

How to configure VLAN on a Cisco Switch?



VLAN stands for virtual LAN and technically we can say, a VLAN is a broadcast domain created by switch. When managing a switch, the management domain is always VLAN 1, the default VLAN. All ports of switch are assigned to VLAN 1 by default.  VLAN increase the performance of a network because it divide a network logically in different parts and limit the broadcasts.

Any member of VLAN 2 can not talk with any member of VLAN 3 without router but all the members of VLAN 2 and VLAN 3 can talk with other members within their VLANs.
This Lab will also help how VLANs can be used to separate traffic and reduce broadcast domains.
To create a VLAN, first enter global configuration mode to run the following commands.

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