User`s guide

Glossary
D-13
LLC (logical link control)
A part of the data link layer of the OSI model that defines the
transmission of a frame of data between two stations (with no
intermediate switching nodes).
LMA (local management agent)
Software running on a network device to control the device in
terms of network management functions.
local traffic
Traffic within a given network segment.
logical ring
The circular path a token follows in an FDDI network. The logical
ring may be considered to be circular, although the actual physical
ring may be a ring, a tree, or a dual ring of trees.
MAC (media access control)
The data link layer sublayer responsible for scheduling,
transmitting and receiving data on a shared medium local area
network.
mask
A subset of a larger set of data to be included for comparison,
analysis, etc. For example, in bridge filtering, a mask might be
specified to include only the first four address bits as the basis for
filtering decisions.