D-Link AirPremier DWL-2210AP Manual page 175

Glossary
connects multiple computers and other network devices such as storage and printers. Ethernet
is the most common technology implementing a LAN.
Wireless Ethernet (802.11) is another very popular LAN technology (also see WLAN).
LDAP
The Lightweight Directory Access Protocol (LDAP) is a protocol for accessing online directory
services. It is used to provide an authentication mechanism. It is based on the X.500 standard,
but less complex.
Lease Time
The Lease Time specifies the period of time the DHCP Server gives its clients an IP Address
and other required information. When the lease expires, the client must request a new lease.
If the lease is set to a short span, you can update your network information and propagate the
information provided to the clients in a timely manner.
LLC
The Logical Link Control (LLC) layer controls frame synchronization, flow control, and error
checking. It is a higher level protocol over the PHY layer, working in conjunction with the MAC
layer.
MAC
The Media Access Control (MAC) layer handles moving data packets between NICs across a
shared channel. It is a higher level protocol over the PHY layer. It provides an arbitration mechanism
in an attempt to prevent signals from colliding.
It uses a hardware address, known as the MAC address, that uniquely identifies each node of a
network. IEEE 802 network devices share a common 48-bit MAC address format, displayed as a
string of twelve (12) hexadecimal digits separated by colons, for example FE:DC:BA:09:87:65.
MDI and MDI-X
Medium Dependent Interface (MDI) and MDI crossover (MDIX) are twisted pair cabling
technologies for Ethernet ports in hardware devices. Built-in twisted pair cabling and auto-sensing
enable connection between like devices with the use of a standard Ethernet cable. (For example, if
a wireless access point supports MDI/MDIX, one can successfully connect a PC and that access
point with an Ethernet cable rather than having to use a crossover cable).
MSCHAP V2
Microsoft Challenge Handshake Authentication Protocol Version 2 (MSCHAP V2) provides
authentication for PPP connections between a Windows-based computer and an Access Point
or other network access device.
MTU
The Maximum Transmission Unit is the largest physical packet size, measured in bytes, that a
network can transmit. Any messages larger than the MTU are fragmented into smaller packets
before being sent.
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