Extreme Networks Summit WM Series Guide de l'utilisateur Page 13

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Summit WM-Series WLAN Switch and Altitude Access Point Software Version 1.0 User Guide
13
1 The Summit WM-Series Switch Software
solution
The next generation of Extreme Networks wireless networking devices provides a truly scalable WLAN
solution. Extreme Networks Altitude APs are thin access points that are controlled through a
sophisticated network device, the Summit WM-Series Switch. This solution provides the security and
manageability required by enterprises and service providers alike.
The Summit WM-Series Switch Software system is a highly scalable wireless local area network
(WLAN) solution developed by Extreme Networks. Based on a third generation WLAN topology, the
Summit WM-Series Switch Software system makes wireless practical for medium and large-scale
enterprises and for service providers.
The Summit WM-Series Switch Software system provides a secure, highly scalable, cost-effective
solution based on the IEEE 802.11standard. The solution is intended for enterprise networks operating
on many floors in more than one building, as well as in public environments such as airports and
convention centers that require more than two access points.
This section provides an overview of the fundamental principles of the Summit WM-Series Switch
Software system: what it is, how it works, and its advantages.
What is the Summit WM-Series Switch Software
system?
The Summit WM-Series Switch Software system replaces the conventional access points used in wireless
networking with two network devices that work as a system:
Summit WM-Series Switch: A network device that provides smart centralized control over the
elements (Altitude APs) in the wireless network.
Altitude APs: The access points for 802.11 clients (wireless devices) in the network, controlled by the
Summit WM-Series Switch. The Altitude AP is a “fit access point” because its wireless control is
handled by the Summit WM-Series Switch. The Altitude AP is a dual-band access point, with both
802.11a and 802.11b/g radios.
Together, the Summit WM-Series Switch Software products enable a radically simplified new approach
to setting up, administering and maintaining a WLAN. Summit WM-Series Switch Software provides a
Layer 3 IP routed WLAN architecture. This architecture can be implemented over several subnets
without requiring the configuration of virtual local area networks (VLANs).
Conventional wireless LANS
At its simplest, wireless communication between two or more computers requires that each one is
equipped with a receiver/transmitter – a WLAN Network Interface Card (NIC) – capable of exchanging
digital information over a common radio frequency. This is called an ad hoc configuration. An ad hoc
network allows wireless devices to communicate together. This is an independent basic service set
(IBSS).
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