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Get ready for the move to 802.11n standard
Wi-Fi networks in the coming years.
SmartPath Wireless: Why 802.11n?
The needs of enterprise Wi-Fi are growing.
The way that Wi-Fi is being used and the requirements on an
enterprise Wi-Fi network are going through a fundamental and
generational change. The reason: There’s an explosion of Wi-Fi enabled
devices, a 10x performance increase with the 802.11n standard, and the
migration of Wi-Fi from convenience to mission-critical Ethernet networks.
As a result, the enterprise is demanding a new type of wireless LAN
infrastructure. SmartPath technology is designed to meet that demand.
With it, your enterprise can get a secure multiservice infrastructure that’s
capable of supporting voice, video, and data users — as though they each
had their own networks. QoS and SLA features help ensure end-user
experiences are maintained.
Enterprise users also want the mobility and productivity of Wi-Fi with
the scale, performance, resilience, and ubiquity of the Internet. To that
end, SmartPath enables you to create a widely accessible, low-cost,
network with wire-like resilience that is also easy to deploy and use.
The network impact of 802.11n.
Centralized data forwarding is usually sufficient for 802.11a/b/g
wireless networks, where network speeds were much lower. But as
more bandwidth is used for 802.11n, this centralized approach has a
huge impact on backbone links and the controller itself.
But without a controller, you can minimize such backhauling of data.
SmartPath’s architecture offers all the wireless functionality promised
by 802.11n in a controller-less design, so:
• Data traffic flows from wireless clients to the AP, then to the client’s
destination in a direct, open path.
• Control traffic is localized and flows only between APs that are in
the same RF neighborhood.
• No required “double-switching” tunneling or single points of failure.
Traffic works just as it does on your wired network.
• Data traffic from higher-speed radios is distributed across the
network, is not bottlenecked in to and out of a single device,
and doesn’t need to hit the core.
• Wireless traffic is no longer opaque to the rest of the network. Your
WLAN benefits from security and QoS schemes already in place.
• Policy enforcement can be provided at network edge, instead of at
the controller.
Productivity
Mobility
Applications
Users
Yesterday’s WL ANs :
» Wi-Fi for convenience
» Nomadic users
»
Limited speed and range
» Best for smaller office networks
» An extension of the wired LAN
The 802.11n world:
» Ideal for mobile users
»
10x bandwidth potential
» MIMO antennas for more
range, better coverage
» Dual-mode voice capable
»
Possible wired Ethernet
replacement
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