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Same Interface Groups on Multiple Controllers


I was wondering if anyone has experienced any issues running the same interface groups across multiple controllers? If so, is this considered a bad practice?

As an example, let's say we have 4 WLC controllers and 8 /24 subnets. Each controller would be configured to have an "Interface" (Each with a unique IP address) in each of the 8 subnets. After configuring all the controllers with an interface for each of the 8 subnets you then create an Interface Group on each controller and place all 8 subnets into that group, thereby creating identical interface groups on each of the 4 controllers. The end result would allow end clients to be assigned into any one of the 8 subnets from any of the 4 controllers.  

I have been unable to find any documentation regarding this configuration so any input would be greatly appreciated. Also, I tried to be as clear as possible but if anyone needs clarification please let me know.     



VIP Purple

Same Interface Groups on Multiple Controllers

Hi Anthony,

Your configuration is perfectly alright...

Here is some of my notes on this feature..may be helpful to you



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Hall of Fame Super Silver

Re: Same Interface Groups on Multiple Controllers

That's what I would do. As long as you have a subnet large enough to support the clients count it will work with no issues.

Sent from Cisco Technical Support iPhone App

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VIP Purple

Re: Same Interface Groups on Multiple Controllers

What you are doing is perfectly alright.

Here is some of my notes may help you as well



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