L
L2F

See Layer 2 Forwarding (L2F).

L2TP

See Layer 2 Tunneling Protocol (L2TP).

LAN

See local area network (LAN).

LANMAN

An old authentication method used with early Windows-based systems.

latency

The wait time between the call for an action or activity and the actual execution of that action.

lattice

The concept that access differs at different levels. Often used in discussion with the Biba and Bell La-Padula models as well as with cryptography to differentiate between security levels based upon user/group labels.

Layer 2 Forwarding (L2F)

A tunneling protocol often used with virtual private networks (VPNs). L2F was developed by Cisco.

Layer 2 Tunneling Protocol (L2TP)

A tunneling protocol that adds functionality to Point-to-Point ...

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