Network Time Protocol (Ntp); Open System; Orthogonal Frequency Division Multiplexing (Odfm); Power Over Ethernet (Poe) - Nortel 120 Using Manual

126 References

Network Time Protocol (NTP)

NTP provides the mechanisms to synchronize time across the network.
The time servers operate in a hierarchical-master-slave configuration to
synchronize local clocks within the subnet and to national time standards
by means of wire or radio.

Open system

A security option which broadcasts a beacon signal including the access
point's configured SSID. Wireless clients can read the SSID from the
beacon, and automatically reset their SSID to allow immediate connection
to the nearest access point.

Orthogonal Frequency Division Multiplexing (ODFM)

OFDM/ allows multiple users to transmit in an allocated band by dividing the
bandwidth into many narrow bandwidth carriers.

Power over Ethernet (PoE)

A specification for providing both power and data to low-power network
devices using a single Category 5 Ethernet cable. PoE provides greater
flexibility in the locating of access point's and network devices, and
significantly decreased installation costs.

RADIUS

A logon authentication protocol that uses software running on a central
server to control access to the network.

Roaming

A wireless LAN mobile user moves around an ESS and maintains a
continuous connection to the infrastructure network.

RTS threshold

Transmitters contending for the medium may not be aware of each other.
RTS/CTS mechanism can solve this "Hidden Node Problem." If the
packet size is smaller than the preset RTS Threshold size, the RTS/CTS
mechanism will not be enabled.
Service Set Identifier (SSID)
An identifier that is attached to packets sent over the wireless LAN and
functions as a password for joining a particular radio cell; that is, Basic
Service Set (BSS).

Session key

Session keys are unique to each client, and are used to authenticate a
client connection, and correlate traffic passing between a specific client
and the access point.
Copyright © 2006, Nortel Networks
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BAP120
Using the Nortel Business Access Point 120
NN47921-301 01.01 Standard
1.0 August 2006
Nortel Networks Confidential