Extreme Networks Summit WM Series Instrukcja Użytkownika Strona 2

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© 2009 Extreme Networks, Inc. All rights reser ved. Summit WM20 WLAN Controller—Page 2
Extreme Networks Data Sheet
Access Domain
Corporate
Guest
Voice
Authority
Directory
Browser
Device address
Privacy
AES
None
Shared key
QoS
Data
Data
Priority
Access
Everywhere
Web only
IP PBX
SSID
Corporate (not broadcasted)
Guest
Handset
Internal
Network
Corporate
Resources
Internet
Summit
WM20
IP PBX
Altitude
Altitude
Fast and Easy Deployment
Plug-and-Play
Out-of-the-box AP installation is a
breeze. Using AccessAdapt™ technol-
ogy, Altitude™ APs automatically
discover the Summit WM controller and
download configuration and operating
parameters—without any pre-configu-
ration of the AP. After receiving
configuration information and being
provisioned with the appropriate
WM-ADs, APs begin broadcasting
multiple Service Set Identifiers (SSIDs)
to clients in the area. Technicians can
quickly add new APs to an existing
system without specialized WLAN
knowledge.
The Summit wireless mobility solution
incorporates easily with existing IP
networks and wireless clients.
Enterprises can enjoy outstanding
performance, high security and
seamless roaming without needing to
install and manage client drivers. Since
APs and controllers communicate using
IP, designers have the option of not
needing to configure network-wide
VLANs when installing the wireless
network. If desired, however, VLANs
can be used for traffic between the APs
and the controller as well as from the
controller into the switching network.
.
Dynamic Radio Management
(DRM)
Summit WM series controllers simplify
setup and operation through their
extensive DRM capabilities. DRM
automatically optimizes radio frequency
coverage in an area, selecting channels
and adjusting power levels to provide
trouble-free client connectivity while
maximizing coverage.
Keeping up with changes that affect
coverage can be a challenge. With DRM,
calibration and adjustment automatically
occur 24 hours a day, eliminating the
need to manually set or tune power levels
as conditions change. In addition, should
an AP fail, DRM provides fault tolerance
by detecting the failure and compensating
by increasing output power of the
neighboring APs.
DRM uses a distributed algorithm that
does not require a connection to a
centralized resource. As a result, branch
office support is simplified and the
solution is highly scalable. DRM is stable
and does not “flap” during operation
meaning the WLAN remains available and
reliable even when radio frequency
conditions are changing.
Summit Wireless Mobility
Access Domains
Summit Wireless Mobility Access Domains
(WM-AD) help administrators easily
define profiles for different categories of
users, groups, devices or applications.
Compared to the other approaches that
require the configuration of a multitude of
security and performance parameters,
WM-ADs are a simple and powerful
approach to the changing access chal-
lenges of the dynamic Enterprise. For
example, one Access Domain may be
developed for guest access, another for
VoWLAN handsets, and a third for secure
employee access (see Figure 1).
After the administrator has defined Access
Domains for the different types of users,
each Access Domain is assigned to one or
more Altitude APs. The appropriate APs
begin broadcasting service availability.
For example, an Access Domain for guest
access might be advertised by the APs in
the lobby only, while a second Access
Domain for VoWLAN phones could be
supported by APs covering the factory
floor.
From the user’s perspective, each Access
Domain will appear to be a standalone
virtual AP, available only at the locations
selected by the administrator. When a user
or device associates with one of these
virtual APs, the connection will be gov-
erned by the associated Access Domain
parameters for authentication, privacy, QoS
and access to network resources.
The theme of simplicity continues with the
intuitive Summit wireless mobility graphical
management interface. It offers centralized
configuration and management of users,
devices, and applications and can be
accessed via a web browser over the
network or directly through a management
port on the system. The interface provides
remote performance and session monitor-
ing, statistics, status monitoring, and
reporting. The system supports SSL,
SNMP v2, FTP, RADIUS accounting,
statistics, syslog and Secure Shell (SSH)
interface.
For customers looking for increased
operational efficiencies, Extreme Networks
offers its EPICenter
®
network management
platform for managing Summit WM systems
as well as Extreme Networks stackable and
modular switching products. With
EPICenter, administrators can discover and
view Extreme’s network products, receive
traps and alarms, view topology and
inventory, and generate comprehensive
reports.
WLAN systems have been difficult to install, configure and operate. Summit WM series controllers provide a fresh
approach to managing the complexity of configuring and operating wireless networks through a number of unique
capabilities.
Figure 1: Example of Profiles Using Wireless Mobility
Access Domains
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