Wireless

Hi all ,

We have a pair of 7210 controllers configured in the same cluster. Since moving from standalone mode to cluster mode, we have encountered multiple issues, primarily related to DHCP. In our setup, the controllers act as DHCP servers for both APs and clients across multiple VLANs. TAC advised us to:

Create VRRP for each VLAN and Assign unique IP addresses for each VLAN on both controllers and the VRRP interface.

I have implemented these changes, but the issue persists. Clients are unable to obtain IP addresses. I also tried deleting and recreating the VLANs, but every time I attempt to delete a VLAN, I receive errors such as:

• "VLAN in reference"
• "VLAN cannot be deleted"

Has anyone encountered similar issues, or do you have suggestions on resolving this problem?

Thanks 

To simplify everything, you need an external DHCP server supplying dynamic ip addresses to everything.  You will have untold problems until you do that.

You cannot delete a VLAN if it is referenced in another structure like a virtual AP, a role, etc.

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