centralized with multiple sites

[ammahend]

I am trying to create a wireless solution with 3 sites, and one datacenter each remote site have vlan 10, 11, 12 mapped to following :

controller sites in datacenter.

REMOTE SITE 1

vlan 10 - AP management     10.10.10.0/24

Vlan 11 - SSID STAFF           10.10.11.0/24

VLAN12 - SSID ADMIN          10.10.12.1/24

REMOTE SITE 2

vlan 10 - AP management     10.20.10.0/24

Vlan 11 - SSID STAFF           10.20.11.0/24

VLAN12 - SSID ADMIN          10.20.12.1/24

REMOTE SITE 3

vlan 10 - AP management     10.30.10.0/24

Vlan 11 - SSID STAFF           10.30.11.0/24

VLAN12 - SSID ADMIN          10.30.12.1/24

can I configure such scenario, Since all Schools have same vlan and this is a centralized solution and everything comes to controller, what would be the VLAN, GATEWAY and INTERFACE on the controller.

the Link between datacenter and renote sites are L3

Thank you

[Stephen Rodriguez]

that won't work as the VLAN ID is the same across all the sites you are backhauling to the WLC.

This would work, however if you did FlexConnect. You would configure the WLANs with the appropriate VLAN ID, and when you configure the AP for FlexConnect, it will inherit the VLAN from the WLAN by default.

After that, the user traffic will follow the local routing rules.

HTH,
Steve

[ROBERT T]

Using a Flex Connect solution dropping the traffic local will allow the APs to keep working if the remote site loses connection to the central controller. If the AP reboots while the connection to the controller is down, then it won't work.

I have deployed the Flex Connect solution with a central controller and it works very well.

[ammahend]

Thank you, I have done many flex solutions but this is one of a kind situation, so I am just thinking what are my options with central :

1: i am thinking if I take subnets for vlan 11 , 10.10.11.0, 10.20.11.0, 10.30.11.0 and group them together into one interface and map this interface group to SSID STAFF.

2.if I configure different vlan numbers, in every Schools, can I create 4X3 different interfaces on controller each with unique vlan and IP and still do centralized ???

[Stephen Rodriguez]

That wouldn't work, with interface groups your going to get a round robin effect for the IP address.

You could use AP groups so that each school gets the appropriate subnet. But you can't have the same VLAN ID with different subnets, the WLC will bark when you try to configure that.

But on that note, if you are pulling everything back to the DC, why do the WLAN need to all have the same VLAN ID? the traffic is at the DC not the remote site. If the sites are using VLAN 10 for the AP subnet that's fine as that traffic will be local, but as the staff and admin traffic is going to be ingress/egress at the WLC, the VLAN for the actual site doesn't matter.

You could do

Remote site 1. 110,111,112

Remote site 2. 210,211,212

Remote site 3. 310,311,312

then you have different VLAN IDs and AP groups as I said earlier

HTH,

Steve

[ROBERT T]

I have about 200 sites doing flex connect. I have a 7510 in the central data center with 3-4 APs at each site. Each site has the same VLAN numbers, I have the AP connected to a trunk port on the switch. I then configure every AP with the same VLAN configuration. With exception to IP addresses, every site has the same config/setup.

The AP drops the data to the local switch and only management traffic goes back to the controller. It works very well.

Is this the solution you are looking for? or am I off  on what you want?

[Abhishek Abhishek]

This scenario is not looking feasible in my understanding.Please also attach the proposed topology.