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The IEEE802.3ad standard describes Link Aggregate Control Protocol (LACP), which is a

protocol that dynamically creates and manages trunk groups. When you enable LACP link

aggregation on a port, the port can automatically negotiate with the ports at the remote end of a link

to establish trunk groups. LACP also allows port redundancy, that is, if an operational port fails,

then one of the "standby" ports becomes operational without user intervention.

A shared communication system to which many computers are attached. A LAN, as its name implies, is limited

to a local area. LANs have different topologies, the most common being the linear bus and the star configuration.

A geographic territory used primarily by local telephone companies to determine charges for intrastate calls.

The time it takes for a bit to be transmitted from source to destination.

LDAP (Lightweight Directory Access Protocol) is a protocol over TCP that specifies how clients

access directories of certificates and lists of revoked certificates.

The local phone companies-either a Regional Bell Operating Company (RBOC) or an independent phone

company (GTE for example)- that provide local transmission services.

LEDs are visual indicators that relay information about the status of specific functions to the

user by lighting up, turning off or blinking. LEDs are usually found on the front panel of the

physical device. Examples include Status, Power and System LEDS.

Loop Emulation Standard is an ATM forum specification for sending voice traffic over

ATM Adaptation Layer type 2 (AAL2).

Linux is a free, open-source UNIX-type operating system.

One VC (Virtual Circuit) carries multiple protocols with protocol identifying information

being contained in each packet header. Despite the extra bandwidth and processing overhead,

this method my be advantageous if it is not practical to have a separate VC for each carried

protocol, eg., if charging heavily depends on the number of simultaneous VCs.

A local loopback test is used to check the device's DSL chip. A local loopback test failure

indicates an internal device problem.

A virus that only activates itself when certain conditions are met. Logic bombs usually damage files

or cause other serious problems when they are activated.

A data path loop forms when there is more than one path or route between two networked devices.

A supervisory signal given by a telephone or PBX in response to completing the loop path.

Loop reach defines speed that can be attained at various distances. This is very important for DSL

technology as distance from the CO (Central Office) influences attainable speeds.