Белая книга для Cisco Cisco 2000 Series Wireless LAN Controller
Cisco and Intel—Five Myths of Wireless Networks
Page 5
Myth #4: Wireless networks are immature
Thanks to Cisco and Intel collaboration, mature IEEE wireless networking standards, and third-party vendor support, wireless networks deliver
a mature networking solution and provide a platform for enhanced value-added services to extract additional return from wireless networks.
Intel Cisco Business Class Wireless Suite
The Intel-Cisco strategic alliance, based on a technology collaboration called
Business Class Wireless Suite ensures full capability between Intel
®
Centrino
®
Duo mobile technology and Cisco Unified Wireless Network products. Business
Class Wireless Suite contains innovative wireless features that provide customers
who use products from both Intel and Cisco with additional interoperability. Business
Class Wireless Suite Version 1.0 focuses on two core areas: enhanced wireless
VoIP support and smart access point selection technology.
Wireless VoIP
Market estimates show voice over IP (VoIP) clients are expected to grow 70 to 80
percent per year, while VoIP use over wireless LAN is expected to grow 300 percent
by 2007. Working together and with third-party VoIP soft phone vendors, Intel and
Cisco deliver optimized mobile VoIP experiences with higher audio fidelity and
improved roaming capability during phone calls. By building specific capabilities into
the Intel
®
PROSet/Wireless driver such as wide-band codec support and enhanced
Cisco WLAN statistic support, the improved VoIP experience is seamless to the end
user. The unique APIs added to the Intel
®
PROSet/Wireless driver relay enhanced WLAN statistics from the Cisco Unified Wireless Network to
the third-party soft phone software. Enhanced WLAN statistics give soft phone software greater flexibility in determining audio codec and
roaming decisions, resulting in a higher quality VoIP experience within an enterprise environment.
“Our employees enjoy the freedom
of working anywhere—conference
rooms, common areas, cafeterias—just
as productively as if they were
at their desks.”
— Sylvia
Stump
Wireless Program Manager
Intel IT
Intel IT
Smart Access Point Selection
Another key feature of Business Class Wireless Suite v1.0 is the ability to provide client and access point load balancing. Load balancing using
Business Class Wireless Suite improves client throughput and packet reliability, and optimizes WLAN infrastructure investments. Clients
typically associate with an access point that has the strongest radio signal without regard to the current access point (AP) throughput or packet
retries. With Business Class Wireless Suite Smart AP Selection technology, the client periodically gathers statistics from the Cisco WLAN
infrastructure to determine if a better connection with another access point would increase throughput or reliability or both. For example, a tight
grouping of clients may all associate to the closest access point, even if the access point is overwhelmed with network traffic. With Business
Class Wireless Suite, an Intel
®
Centrino
®
Duo mobile technology notebook computer could see that more distant access point would give better
throughput based upon the statistics received from the Cisco WLAN infrastructure.
Intel Wireless Campus Case Study
Many enterprise employees already use Wi-Fi within their own homes and other hotspot locations. Wi-Fi delivers more freedom and flexibility.
It’s a natural extension for users to use Wi-Fi in the workplace. When Intel employees walk through the doors of the Jones Farm campus, in
Hillsboro, Oregon, their Intel
®
Centrino
®
mobile technology notebook computers detect the Cisco primary WLAN and are automatically logged
on to the network. Employees open and log into their notebook computers—and are immediately connected.
With nearly 6000 employees, the Intel Jones Farm campus has adopted wireless as its primary method of network access on a wide scale.
The Intel IT group accomplished the engineering feat using the Cisco Business Class Wireless Suite, which combines the Cisco Unified
Wireless Architecture and Intel
®
Centrino
®
mobile technology notebook computers.
The idea of using wireless for primary access arose when the Intel IT wireless team began investigating ways to increase employee productivity
and reduce network costs. In 2004, Intel IT was managing three separate networks—LAN, WLAN, and telephony—which essentially tripled
operational costs. The new wireless deployment converges data, voice, and video all on the same wireless LAN reducing capital expenses for
cabling while at the same time satisfying employee preference for mobility.
Security, reliability, performance, and mobility are at the forefront of the business units within the Jones Farm Campus which include the
finance department, the legal department, and R&D, as well as many strategic divisions, such as the Intel
®
Centrino
®
mobile technology and
7/25/06