Round robin sessions are only associated with a particular server when using the sticky round robin algorithm. The maximum number of sticky round robin sessions allowed can be configured on a per port basis.The maximum sessions setting can be configured between 0 (no sessions allowed) and the maximum number of users allowed on the system as displayed using the show multiauth command. The RADIUS authentication algorithm must be set to sticky round robin using the set radius algorithm command.
If max-sessions is not specified, the maximum number of sticky round robin sessions supported defaults to the maximum number of users supported on the device as displayed in the show multiauth command.
Use the set radius max-sessions command, specifying the max-sessions value and the server index, to set the maximum allowed sessions on when the RADIUS authentication algorithm is set to sticky round robin.