AP groups with same vlans , same ssid but different subnet.

Question

Hi Members,
I have a Cisco Flex 7500 in my datacenter and I need to connect 100 sites , each site with 2-3 APs , each side has its own network and is independent of other sites , the site only need to comunity locally and do not need to access any centralized applications.
I am trying to achieve this by Creating 100  different AP groups and assiging 2-3 AP in each groups for each branch, I will achieve WAN failover resiliency by creating flexconnect groug , the issue I am facing are as below .
1.Since all the sites has same setup , the AP and clients on all sites are in vlan 2 , so when I try to create 2 or more AP group with same vlan, it restricts me of doing so , I cannot create diffrent AP groups mapped to same Vlan .
2.If I keep the APs and Clients in the same subnet , I dont think it should be a problem , but I need your second opinion.
to give you an even better picture , look at the topology enclosed , and my question is if both STAFF and STUDENT APs are in same vlan but in 2 different broadcast domain , how would I create the AP groups.
Thank you

Answer 1

Thanks for the reply Jenn , here is my situation.
I have 2 sites lets day , site A in virginia ,  site B in Maryland.
SiteA - 10.1.1.0/24 - vlan 2
           10.1.2.0/24 - vlan 3
           10.1.3.0/30 - WAN to central site where controller sits.
SiteB - 10.2.1.0/24 - vlan 2
           10.2.2.0/24 - vlan 3
           10.2.3.0/30 - WAN to central site where controller sits.
both the sites will have a single ssid "XYZ" and will switch locally only.
howin my understanding the way I will deploy this is as below
1.I will create WLAN with ssid "XYZ".
2.I will create 2 AP groups lets say "Site-A" and "Site-B"
3.I will map the APs in site A to AP group "Site-A" and APs in Site B to "Site-B"
4.I will create 2 dynamic interfaces one for each AP group , now this is where I am facing problem , when I am creating dynamin interfaces , I need to specify the subnet and vlans when creating dynamic interfaces , since the vlans used is same on both sites , its not letting me create 2 interfaces with same vlan id.
in my understanding HREAP is only majorly used for WAN failover and local authentication so I am not concerned about that right not , my prime work is to udnerstand the AP group and working.
if you still need print shot let me know I will have to go at site.
also validate if my thinking is right on the 4 steps I have mentioned above , I am new to wireless and whatever I have learned I have learned in last 10 days .
Appreciate your help.
Thank you