Users Count per Guest SSID

[AmrReda13471]

We are having a customer, that needs to configure Guest Users with Local authentication web page all on controller with no need for ISE or Radius or LDAP, this is applicable and can be done.

But he wants to create a specific username and password for each one connecting to the guest SSID, we need to know the maximum number of users can be created per the SSID also if the number of users to be created on the SSID exceeds the 14K will it affects the CPU Utilization of the controller keeping in mind they are 2 9800-80 WLC HA.

[marce1000]

 - I don't think maximum number of users per  (guest) SSID is  a determining factor (it's not related), only max users supported on the controller which supports up to 64K users : if the customer is worried about resources then the following commands are available for analysis :

         show platform resources
         show processes cpu platform sorted | ex 0%      0%      0%
         show processes memory platform sorted
         show processes memory platform accounting

         show int po1 | i line protocol|put rate|drops|broadcast
        show platform hardware chassis active qfp statistics drop 
        show platform hardware chassis active qfp feature wireless punt statistics 

         show buffers | i buffers|failures (Check for buffer failures)
         show platform hardware chassis active qfp datapath utilization | i Load

M.


         

[Rich R]

The number of users which can connect to the SSID is subject to the usual limits of users per AP and per WLC overall, available IP addresses and available bandwidth.

But if you plan to configure 14,000 local username & password on the WLC then you might hit limits.  I've never seen a specified limit but I doubt that anyone ever expected it to be more than 100 as any solution with that many users should always be based on a proper AAA server solution.  You'll have to test it yourself to find out the limit but I would not recommend doing it that way.

Handling 14,000 connected users is a completely different matter - as Marce said the 9800-80 supports up to 64,000 clients at up to 80Gbps but there are a lot of variables that come into that and it also depends how you set it up (eg. local or central switching).  Read the best practices guide (below) and then plan carefully according to user traffic and bandwidth use-case requirements.