Cisco Aironet 1602i - Multiple SSID's in the same VLAN, is it possible, or is there a better way?
Posted on 2014-01-08
I have (3) autonomous Cisco Aironet 1602i's that I have configured at a customer's site. I tried to sell them a WLC but they would not go for it, so I am left with the Cisco Aironet's in the following configuration:
LAN subnet that they serve: 172.16.10.0/24
Details: Single subnet data network, (2) VLANs, (1) Voice:VLAN 100, (1) Data:VLAN 101.
These Aironet's have (2) Radios each, 2.4Ghz and 5Ghz.
There is (1) SSID setup on them, which is the same SSID on all (3) units.
The encryption is set to WPA2, and the WPA password is the same on every Aironet.
The LAN interface on each has no IP, and the BVI interface on each has a static IP on the LAN subnet (172.16.10.10, 11, 12).
The channels of each Aironet are set to NOT overlap with the other Aironet's:
Aironet-1: Channel 1
Aironet-2: Channel 7
Aironet-3: Channel 14
The units are spread throughout the facility such that they have a small overlapping zone towards the middle of the facility and no coverage holes.
For the most part, this setup is working well for me for a long time. I have one particular MACBOOK AIR, however, that operates (as luck would have it) within the center of the facility, and it loses network connectivity often for 30-120 seconds at a time. If I watch the console of the Aironet's, I will see messages stating that the MAC "has left the BSS..." and then see it pop up on another Aironet as associated...only to have THAT Aironet eventually say the same thing.
My questions are:
1. Is this the best configuration, given (3) Cisco Aironet's without a WLC?
2. Can I configure multiple SSID's on these units so that each Aironet has it's own SSID unique to that Aironet, but also has (1) SSID that is shared between all of them so that devices can automatically connect to the closest access point if they roam outside of the coverage area for that Aironet? My thought here is to have the problematic MACBOOK AIR connect to just (1) single SSID that is unique to a single Aironet and see if this fixes his issue.
3. Is there a better solution for Cisco Autonomous access points? A Cisco WLC 2504 would work wonders here, but I just cannot get the customer to cost-justify this for a single MACBOOK.
Help is appreciated, thank you!