IP Addressing on High Density Wireless

[sdeltoro1]

Hi guys a very easy question:

what is better? or if exist another best-practices please tell me.

consider the fact only 1 ssid, 2000 user on same building  (4 areas, not separete areas, they are very close)

1.- one network mask /21? for whole building?. effect: I think this generate too much traffic, broadcast etc.

2.- 4 network mask /24 each one. using vlan id group and assign one vlan x area?, effect: roming wil be at layer 3, and will be experience renewal ip and a lot conect/disconect problem?

thanks and regards

[George Stefanick]

You will get difference answers from different folks, for sure.

I manage a large WLAN and have 3,000 client in the same subnet and its a voice vlan at that. I dont have any issues. The WLC will proxy the broadcast, so broadcast are never on the wireless medium. However, if I were to have deisgned this network, I would have done /22 and ap groups or a dynamic vlan.

I hope this helps

[Amjad Abdullah]

Just like what George said, you'll get different answers from different people.
We have couple of networks all are /20. All are fine (all are data).

I would study it carefully about how many users would possibly roam from an area to another before choosing. But if everything is OK I think I will end up using one subnet.

Amjad

[sdeltoro1]

thanks Guys,

I will implement using one subnet, what version is your WLC and if the broadcast is enable for default or must be disabled?.

thanks

[Amjad Abdullah]

If there are no applications that needs broadcast then I prefer to keep it disabled.

[Saravanan Lakshmanan]

Use Interface group.

[Amjad Abdullah]

This is also a good solution to make smaller subnets on same WLAN rathe than mapping the WLAN to same big subnet/VLAN.