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Glossary-16
subnet identifier
This is the part of the network address that is unique to the subnet. It can be determined
by logically ANDing the Internet address with the subnet mask.
subnet mask
A 32-bit quantity that enables gateways and host computers to know which bits in the
Internet address correspond to their subnet address and which correspond to their host
addresses.
switch characters
Characters interpreted by the access server that cause the access server to switch
between sessions or between local and service modes.
synchronous
Pertaining to a communication method in which each event occurs in relation to a
timing signal.
TCP/IP
Transport Control Protocol/Internet Protocol
. A suite of Internetworking
communication protocols of which TCP and IP are the two most fundamental.
TCP port
This is a protocol port number used by TCP/IP. For access servers, this number is
mapped to a physical access server port number.
TD/SMP
Terminal Device/Session Management Protocol
. An asynchronous, coded syntax used
by the access server and a terminal to manage independent multiple
terminal sessions
simultaneously over a single physical circuit.
See
session management
.
Telnet
Internet
. The Internet standard protocol for remote terminal connection service.
Telnet client
See
client-server
.
Telnet listener
A service that allows resources to be accessible to a
TCP /IP
network. The service is
provided over Telnet, hence the service is commonly referred to as a Telnet listener.
Typically, printers connect to access server ports associated with a listener. However,
personal computers and host computers can also connect to such ports and through
them access the
TCP/IP
network.
Telnet server
See
client-server
.