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VLAN Question?
Posted on 2002-06-26
What would be a logical application for a VLAN network. If you had VLAN1 and VLAN2 and a backbone connected the two switches that the hubs and the workstations ran into?
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6 Comments
VLANs are good to break up large broadcast domains, and are good to separate logical groupings of users into separate broadcast domains for security purposes or for better application response times.
http://www.cisco.com/warp/public/473/90.shtml
http://www.cisco.com/univercd/cc/td/doc/product/atm/atmsbus/79845.htm
http://www.cisco.com/warp/public/473/90.shtml
http://www.cisco.com/univercd/cc/td/doc/product/atm/atmsbus/79845.htm
I frequently set up networks and whenever possible I try to keep VLAN's so that the user is on the same broadcast domain as the server that he is attempting to get to that he works from most often. If this is not feasible, then I would create a VLAN that has all the servers on it and one with the users on it and route between them, however, I've never noticed a significant performance gain this way. It would depend on how your network was subnetted, where your servers resided and what IP scheme you currently have set up for clients and servers. Keep in mind that VLAN's can add an extra amount of maintenance to your network as you will be adding ports to the VLAN and also making sure that routing is configured properly between them.
Ok, VLAN's are used for segmentation avoiding computers from one VLAN accesing the other segment.
Example of this is a Wireless LAN. To avoid people accesing wireless Lan to have access to wired lan you can put a wireless lan in one VLAN and a wired lan in another VLAN.
Also you can segment the intern zone, DMZ and public zone.
Example of this is a Wireless LAN. To avoid people accesing wireless Lan to have access to wired lan you can put a wireless lan in one VLAN and a wired lan in another VLAN.
Also you can segment the intern zone, DMZ and public zone.
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