I have been evaluating WLAN solutions and have narrowed the choice down to two; AireSpace (Cisco) and Aruba. The one thing I really like about Aruba's system is that access points can be configured as IDS sensors only, which would eliminate some of the performance problems associated with AP's that also act as sensors. Can the Cisco Airespace solution enable AP's as sensor only? I am concerned that a busy access point will not be able to detect rogue devices.