We are in the process of upgrading from autonomous mode to Lightweight AP's. We have about 200 access points in the campus. My question is is it better to get a wireless controllers that could only handle up tp 100 AP's or a Wism module that can handle 300 APs and has better redundancy directly connected to our distribution Cat 6509? If we go for WisM module, we only need 2 of this since it can cover all our AP's plus backup incase one fails. If we go for the controllers, we have to get 4 to 6 of this. Which one do you think is better? We also have 4 6509 that has plenty of slots for the Wism module. Every opinion counts TY in advance.
Here is what the WiSM Q&A (http://www.cisco.com/en/US/prod/collateral/modules/ps2706/ps6526/prod_qas0900aecd8036434e.html) says:
Q. What is the advantage of deploying the Cisco WiSM?
A. The advantages of deploying the Cisco WiSM include:
â¢ Lower costs for deployments of more than 300 access points
â¢ Continued investment protection for customers with existing Cisco Catalyst 6500 Series or Cisco 7600 Series Routers
â¢ Tighter wired and wireless integration for enterprise-scale deployments in the same chassis
â¢ Fewer managed nodes in the network
â¢ Scalability to 7200 access points
With that said, the first bullet speaks for itself. If you have 300 APs, then there is an economy of scale. But if you haven't priced this out already, it may be cheaper to get your redundancy from the 4400 series then buying 2 WiSM's for just 200 APs.