WLAN Design Question

[petenixon]

Hi all,

I'm looking for some advice on WLAN design best practices.

I'm "overhauling" my companies current wireless infrastructure and i'm a little unsure how to implement this following "scenario":

I would like to segment the WLAN into 6 separate blocks (same SSID) each with the capacity to support 100 users. I have 7 subnets (1 spare) in the 10.201.x.x /24 range and have configured the wireless controller (5508) in LAG mode for redundancy.

My preference would be to use a separate VLAN for each address block (which also represents a physical location) but I would also appreciate more experienced suggetions.

Thanks guys.   

[Scott Fella]

If your going to use FlexConnect then you can define the WLAN the vlan mapping that is locally to the site. If your going to tunnel the traffic back, then you can use AP Groups. This allows you to specify what AP's will have what SSID and will also provide WLAN to interface mapping.

FlexConnect
https://supportforums.cisco.com/docs/DOC-24082

AP Groups
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008073c723.shtml

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[petenixon]

Thanks Scott.

I should have mentioned that the areas aren't that remote so HREAP isn't the best option for me!! I'm trying to keep "in line" with Cisco design practices by designing in blocks, so after further thought I think I will just go for a single vlan per subnet and assign those according to my AP groups (as the link you have posted).

Thanks.

[Scott Fella]

Well as long as you don't mind all traffic has to flow back to the WLC then back to the remote site then go with local mode. FlexConnect helps to prevent an overload maybe on your wan. AP groups are used when doing local switching and or local mode. Just wanted to provide you options.

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[George Stefanick · Accepted solution]

Another option you might consider is interface groups ..

http://www.cisco.com/en/US/products/ps10315/products_tech_note09186a0080b78900.shtml

[petenixon]

I should probably have explained myself a bit better! The "remote" site  is actually around 100m away and is part of our LAN, the other locations  are local (in the building).

I'm going to explore the interface groups option hat George has posted below in a bit further detail as I think this will better suit my needs.

Thanks to you both for your time.

[Scott Fella]

Interface group is bundling subnets together. If you want a location to be designated for a vlan then AP Groups is what you need. If you require multiple subnets for a location or other locations, then you still need AP Groups but you need to create Interface groups.

Example

Site 1
AP Group Site1
WLAN 1 vlan 101
WLAN 2 vlan 102

Site 2
AP Group Site2
WLAN 1 vlan 201
WLAN 2 vlan 202

Site 3
AP Group Site3
WLAN 1 vlan 301
WLAN 2 vlan 302,303 <- interface Group

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[Abhishek Abhishek]

Hello ,

As per your query i can suggest you the following solution-

Please refer to the link-

http://www.cisco.com/en/US/services/ps2961/ps6899/ps8306/services_datasheets_securewireless_scopeddesign_customer.pdf

Hope this will help you.