I am preparing to set up guest wireless access in a dorm environment with a Cisco 5508 WLAN controller and Cisco 3602i APs. According to the book I've been reading, it recommends that I set up a WLAN for 802.11a/n clients in the 5 GHz range and another WLAN for 802.11b/g clients in the 2.4 GHz range. It recommends giving them an SSID like "Guest - 5GHz" and "Guest - 2.4 GHz" respectively. Their reasoning is to allow the best experience for 802.11n users while still supporting legacy devices. Is this a good idea, or should I simply set up a single WLAN for 802.11b/g/n on in the 2.4 GHz range until the 5GHz range has greater adoption?
I have a different stance. I would allow guest with 802.11n speeds and here is why I state that. Wireless is a half duplex medium. If I can get a guest frame on and off the medium 5 times faster with 802.11n, why not. Other wise, your guest clients are the slow pokes on the high way that everyone is trying to get around ...
just my 2 pennys ..
I would just use one SSID for guest. If you want guest to be on a different subnet than your management, then I would create a dynamic interface for guest and use that interface.
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I would just use one SSID, keeps the confusion level down. The only time I would restrict the guest wireless is if I have devices that utilize the 5ghz and that is when I would only allow guest on the 2.4ghz. Conserve my bandwidth per say. I have also disable 802.11N so the max a guest user could connect to is 54mbps, it really depends on your install and if its only guest that will be on your wireless.
For starters you can only bond on 5 ghz. What this means is that you will only get 300 meg on the 5 ghz side. On the 2.4 side you will get 144 at best, due to non bonding.
My stance is allow guest on both, so one 1 ssid. You wll get a mix of guest on 2.4 and 5 ghz. Unless there are compelling reasons not to.
As for 5 Ghz and adoption, almost all new devices support 5 GHz and 802.11n. Dont be surprised if you see more guest on 5 GHz than 2.4.