User's Manual

Wireless Array
Introduction 17
of higher speed 802.11n wireless and its increased use of the 5GHz spectrum adds
to the number of variables today's wireless networks must accommodate.
Backwards compatibility with older clients is crucial, however their operation in a
wireless network can significantly hinder the performance of faster clients. As an
example, 802.11b wireless stations communicate more than 10 times slower than
802.11n stations.
With each of the Array’s multiple radios operating on a different channel, RPM
selects the ideal radio for each station. High-speed stations are grouped together
on radios with other high speed stations, while lower speed stations are combined
with other lower speed stations. This ensures optimal performance for high-speed
802.11n stations without compromise.
The complete feature set of the RPM package includes:
 WDS (Wireless Distribution System) for point-to-point communication
 Wireless Mode per IAP
 Sharp Cell technology
 Wireless Data Rate Optimization
 Wireless Traffic Shaping
 Wireless Voice Call Admission Control
 Fast Layer 2 and 3 Roaming
 Standby Mode
Xirrus Advanced RF Security Manager (RSM)
The Xirrus RSM improves security and minimizes the risk in deploying 802.11n
wireless networks. Leveraging an integrated 24/7 threat sensor and hardware-
based encryption/decryption in each Array, RSM secures the wireless network
from multiple types of threats. The result delivers uncompromised overall
network security with superior flexibility and performance.
Today's wireless networks face a number of potential security threats in the form
of rogue access points, ad-hoc clients, unauthorized clients, wireless-based
attacks, eavesdropping, etc. As 802.11n is increasingly adopted in enterprise
networks, defending against these threats becomes more critical. With the Array’s