3Com Wireless LAN 11 Mbps, Руководство пользователя

Страница: 7 / 58

1
I
NTRODUCTION
The 3Com wireless product family lets you set up a local area network (LAN)
without the restraints of network cabling. If your office already has an Ethernet
LAN, the 3Com 11 Mbps Wireless LAN Access Point 8000 can extend the network
without additional cabling. The access point security features extend the security
of installed wired networks to include all wireless components.
The type of network you configure depends on the size of your office and whether
you require a connection to a wired LAN. A simple configuration consists of an
access point and several clients. The clients can associate with the wireless
network anywhere within the coverage area of the access point.
For more complex requirements, you can configure several access points as
separate networks at the same site. The access points use different network
identifiers called wireless LAN service areas (WLAN service areas) or Extended
Service Set Identities (ESSID). Client computers can roam within the coverage areas
of access points in the same segment with the same WLAN service areas.
Wireless and Wired
Networks
An access point can be connected to a wired LAN by an Ethernet cable acting as a
bridge between the wired and wireless networks. In this configuration, the access
point provides the link between the wired network and wireless clients. Clients
can move freely throughout the service area of the access point and remain
associated with the larger network, allowing client access to the full range of
network services.
For complete wireless coverage, several access points can be connected to an
existing LAN. Wireless clients can roam freely between different access points with
the same WLAN service areas and remain associated with the larger network.
Access Point 8000
Feature Summary
Clear channel select When initializing, automatically scans the frequency spectrum and
selects the channel with the least interference.
Power over Ethernet Powered over the Ethernet cable to reduce the number of cables
and simplify installation.
Access point discovery Clients and network administrators can discover access points and
ESSIDs within the same network segment. The network
administrator can also discover, manage, and upgrade access
points across routers by means of the 3Com Network Supervisor
(3NS).
Rate control Rate Control options available in the access point to select
Optional, Required, or Not Used.
Transmit power control Adjustable power level from minimum to maximum to extend
transmission range.
Roaming within segments Allows client to roam between access points within the same
segment.