Operation Manual

Glossary
Symbols
802.2 The IEEE standard for the definition of the Logical Link Control
protocol for LANs.
802.3 The IEEE standard for the definition of the CSMA/CD (Ethernet)
medium access method for LANs.
A
ACK Acknowledgement. A packet sent to indicate that a block of data arrived
at its destination without error. For example, at the link level, an
acknowledgement indicates successful transmission across a single
hardware link; at the transport level an acknowledgement indicates
successful transmission between end systems (possibly over multiple
hardware links). See NAK.
A-Law The ITU-T companding standard used in the conversion between
analogue and digital signals in PCM (Pulse Code Modulation) systems. A-
law is used primarily in European telephone networks and contrasts with
the North American mu (µ)-law standard.
anonymous FTP Anonymous FTP allows a user to retrieve documents,
files, programs, and other archived data from anywhere in the Internet
without having to establish a user ID and password. By using the special
user ID of anonymous the network user will bypass local security checks
and will have access to publicly accessible files on the remote system. See
archive site, FTP.