Spec Sheet

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WS5000, providing excellent investment protection. A wide range of
802.11a and 802.11b external antenna options enables the design of
coverage patterns for the most challenging environments.
Per Device QoS with Bandwidth-Weighted Fair Queuing
The WS5000 controls Quality of Service (QoS) for each mobile device
by guaranteeing bandwidth for specific traffic classes during periods
of network congestion. With support for layer 2/3/4 classification,
DiffServ, and 802.1p, packets are assigned into a bandwidth-weighted
fair queuing scheduler that allocates a percentage of available
bandwidth to each class queue. In addition, the Power Save Protocol
(PSP) provides per device sleep-stage queues that maintain application
performance for devices in sleep mode.
Power Saving for Client Devices
The Power Save Protocol (PSP) polling feature provides two modes
(doze and sleep) that enable devices to maximize battery life and
maintain application performance. Doze mode enables devices to
conserve power between wireless transmissions, while sleep mode
ensures that packets are stored and reliably delivered when the
device awakens.
Virtual AP Enables True Virtual LANS (VLANs)
Virtual AP enables the wireless LAN to be segmented into true multiple
broadcast domains—the wireless equivalent of Ethernet VLANs—
providing the ability to map multiple ESSIDs (Extended Service Set
Identifiers) to multiple BSSIDs (Basic Service Set Identifiers).
Wireless traffic engineering capabilities control client to-client
visibility, broadcast/multicast/unicast packet forwarding behavior,
and security policies.
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Virtual AP provides complete control over broadcast traffic, delivering
overall improvement in network performance - from maximum
bandwidth and network throughput to improved device battery life.
Virtual AP provides complete control over broadcast traffic, which is
associated with a BSSID. Control of broadcast traffic, including
network level messages, is extremely important because of its
potential negative effect on performance. Intelligent control of
broadcast forwarding through proxy ARP and other mechanisms
ensures that broadcast traffic is received only by the intended
recipients. The resulting reduction in traffic maximizes bandwidth
and network throughput; device battery life and overall performance
are improved with the elimination of the processing of messages
intended for other recipients; and the possible compromise in
confidentiality and security of messages is eliminated since broadcast
messages can no longer reach the wrong recipients.
Load Balancing and Pre-emptive Roaming
Normal roaming does not occur until the device connection has
reached a minimum connection speed of 1 Mbps—normally well
beyond the boundaries of a cell and approximately halfway through
an adjacent cell. Two features, client load balancing and pre-emptive
roaming, work hand-in-hand to ensure that devices roam before the
connection quality erodes, providing users with more consistent
connection speeds for smooth application performance.
Automatic Channel Selection
The degradation of RF performance due to environmental factors is
eliminated with Automatic Channel Select (ACS). ACS optimizes
radio channel planning and installation, scanning and selecting the
best channel for each Access Port based on noise and signal
properties. A complete set of configuration controls provides time,
mode of operation and Access Port exclusion lists.
The WS5000
provides more
consistent
connection
speeds and
smooth
application
performance–—
devices roam
before connection
quality erodes.
Without Virtual AP, an access point
can only support one wireless LAN.
Separate access points must be
deployed for each wireless LAN
required, significantly increasing
expense and maintenance costs.
Access Points with no Virtual AP (Requires Four Devices to Support Four Virtual LANs)
Virtual AP: The functionality of Four Access Points in One Access Port
Virtual AP enables Access Ports to support up to four
virtual LANs, enabling granular segmentation of the
wireless network to best meet the needs of the
enterprise. The result is more control, more
functionality—with less capital and management
expense.
Access Ports with Virtual AP (One Access Port Supports Four Virtual LANs)
Access Point VLAN Architecture: Single BSSID VLAN (Performance and Security Issues)
In a typical access point ar
chitecture, VLANs are defined using multiple ESSIDs. Since access points
support only one BSSID, broadcast traffic intended only for Faculty and Administration (ESSID1) will be
sent to all VLANs—Students (ESSID2), Facilities and Security (ESSID3) and Guests and V
isitors (ESSID4).
The resulting processing of unnecessary messages reduces battery life and network throughput, and
delivery of messages to unintended recipients presents security and confidentiality issues.
BSSID 1:
AA:AA:AA:AA:AA:AA
BSSID 1:
AA:AA:AA:AA:AA:AA
V
ir
tual W
ir
eless Lan 1
ESSID 1: Faculty & Administration
BSSID 1:
AA:AA:AA:AA:AA:AA
Virtual Wireless Lan 2
ESSID 2:
Students
BSSID 1:
AA:AA:AA:AA:AA:AA
Virtual Wireless Lan 3
ESSID 3: Facilities & Security
BSSID 1:
AA:AA:AA:AA:AA:AA
V
ir
tual W
ir
eless Lan 4
ESSID 4: Guests & Visitors
Access Port VLAN Architecture: Multiple BSSID VLAN (Improved Performance and Security)
Virtual AP provides support for multiple BSSIDs, enabling the creation of true wireless VLANs. Broadcast
traf
fic is sent only to r
ecipients within a specific wir
eless VLAN (ESSID), impr
oving overall batter
y life of
client devices and network throughput, and ensuring security and confidentiality for broadcast traffic.
BSSID 1
BSSID 2
BSSID 3
BSSID 4
BSSID 1:
AA:AA:AA:AA:AA:AA
V
ir
tual W
ir
eless Lan 1
ESSID 1: Faculty & Administration
BSSID 2:
BB:BB:BB:BB:BB:BB
Virtual Wireless Lan 2
ESSID 2: Students
BSSID 3:
CC:CC:CC:CC:CC:CC
V
ir
tual W
ireless Lan 3
ESSID 3: Facilities &
Security
BSSID 4:
DD:DD:DD:DD:DD:DD
Virtual Wireless Lan 4
ESSID 4: Guests & Visitors
Virtual AP Enables True Virtual LANs