Steps to configure global SNMP settings.
The SNMP Settings window allows you to configure global SNMP settings from WCS.
Step 1 Choose Administration > Settings.
Step 2 From the left sidebar menu, choose SNMP Settings.
Step 3 If Trace Display Values is selected, mediation trace-level logging shows data values fetched from the controller using SNMP. If unchecked, the values do not display
Step 4 For the Backoff Algorithm, choose either Exponential or Constant Timeout from the drop-down menu. If you choose Exponential (the default value), each SNMP try waits twice as long as the previous try, starting with the specified timeout for the first try. If you choose Constant Timeout, each SNMP try waits the same, specified amount of time.
Step 5 Determine if you want to use reachability parameters. If selected, the WCS defaults to the global Reachability Retries and Timeout that you configure. If unchecked, WCS always uses the timeout and retries specified per-controller or per-IOS access point. The default is checked.
Step 6 For the Reachability Retries parameter, enter the number of global retries used for determining device reachability. The default number is 2. This parameter is only available if the Use Reachability Parameters check box is selected.
Step 7 For the Reachability Timeout parameter, enter a global timeout used for determining device reachability. The default number is 2. This parameter is only available if the Use Reachability Parameters check box is selected.
Step 8 At the Maximum VarBinds per PDU parameter, enter a number to indicate the largest number of SNMP variable bindings allowed in a request or response PDU. The default is 100.
Save the settings
http://cisco.com/en/US/docs/wireless/wcs/5.1/configuration/guide/wcsadmin.html#wp1089899
