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SmartPath Wireless: Why 802.11n?

Get ready for the move to 802.11n standard

Wi-Fi networks in the coming years.

The needs of enterprise Wi-Fi are growing.

The way that Wi-Fi is being used and the requirements of 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 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 into 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 that are

already in place.

• Policyenforcementcanbeprovidedatthenetworkedge,instead

of at the controller.

Productivity

Mobility

Applications

Yesterday’s WLANs:

» 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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