Alcatel-Lucent 5620 Troubleshooting Manual page 276

Glossary
TCP
TDM
telco
Telnet
TLS
TLV
U
UDP
UNIX
GL-12
transmission control protocol
TCP is a protocol used, along with the Internet Protocol (IP), to send data in
the form of message units between computers over the Internet. While IP
takes care of handling the actual delivery of the data, TCP takes care of
keeping track of the individual units of data (called packets) that a message
is divided into for efficient routing through the Internet.
time division multiplexing
Multiplexing in which a separate periodic time interval is allocated to each
tributary channel in a common aggregated channel.
telephone company
A company that provides local, or local and long distance telephone
services.
Telnet is a part of the TCP/IP protocol suite that provides remote terminal
connection service. It allows a user at one site to interact with a remote
time-sharing system at another site as though the user terminal connects
directly to the remote machine.
The Telnet command and program are used to log in from one Internet site
to another. It displays the login prompt of another host.
transparent LAN service
TLS is used to transport customer VLANs while keeping traffic in each
VLAN secure from other customer VLANs. In 7250 SAS and Telco devices,
TLS is a tagging mechanism in the encapsulated source Ethernet frames that
are transported from the customer edge, across the provider network, to the
destination customer edge.
type length value
Traffic engineering information specifies the type, length, and values of the
traffic engineering information that signaling objects, for example, LDPs,
carry.
user datagram protocol
A minimal transport protocol above the IP network layer that does not
guarantee datagram delivery. UDP is for applications that do not require the
level of service that TCP provides or that need to use communications
services, such as multicast or broadcast delivery that are not available in
TCP.
UNIX is a multi-user, multitasking operating system on mainframes,
workstations, and PCs. UNIX is the basis of Solaris and SunOS, which are
the operating systems that Sun workstations use.
November 2008 Alcatel-Lucent 5620 Service Aware Manager, Release 6.1 R3
Troubleshooting Guide 3HE 04244 AAAB Ed. 01