ONEPolicy
  
    ONEPolicy provides for the configuration of role-based profiles for securing and
      provisioning network resources based upon the role the user or device plays within the
      enterprise. By first defining the user or device role, network resources can be granularly
      tailored to a specific user, system, service, or port-based context by configuring and
      assigning rules to the policy role. A policy role can be configured for any combination of
      Class of Service, 
VLAN (Virtual LAN) assignment, or default behavior based upon
      L2, L3, and L4 packet fields. Hybrid authentication allows either policy or dynamic VLAN
      assignment, or both, to be applied through 
RADIUS (Remote Authentication Dial In User Service)
        authorization.

Note   
The software
        only allows policy to be enabled if all the devices in the stack support policy. At the time
        of configuration the device will provision the lowest common denominator of functionality.
        If a device attempts to join the stack after policy is enabled, it must be able to support
        the existing level of functionality or it will not be allowed to participate in policy. For
        more detailed information about lowest common denominator, see 
Policy and Lowest Common Denominator Stacking.