Lantronix 1-T2 User Manual

Page of 72
 
Terms
Introduction
 
1 - 2
 
The PDF versions of the MSS manuals are located in the 
 
manuals
 
 directory of 
the CD. Use the Adobe Acrobat Reader (widely available on the Internet at no 
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1.1 Terms
 
In this manual, the following terms are used to describe parts of a network.
 
Host 
 
A computer attached to the network. The term host is 
generally used to denote interactive computers, or 
computers that people can log into.
 
Node
 
Any intelligent device directly connected to the Ethernet 
network such as a host, a printer, or a terminal server. All 
nodes have their own Ethernet addresses. The MSS is a 
node. Devices connected to the MSS are not nodes.
 
Session
 
A logical connection to a service. A typical session is a 
terminal connected to a host through the server.
 
Local mode
 
The MSS user interface. It is used to issue conÞguration 
and session management commands and to establish 
connections. When in Local mode, users will see a 
 
Local>
 
 
prompt.
 
1.2 Protocols
 
A network protocol is a method of communicating over the Ethernet. Each 
protocol speciÞes a certain arrangement of data in the Ethernet packets, and 
provides different services for its users. The MSS supports the following 
protocols: 
¥
TCP/IP
Support includes Telnet, Rlogin, UDP, and DNS. The Telnet 
terminal protocol, supported on most UNIX systems, is an easy-to-
use interface that creates terminal connections to any network host 
supporting Telnet. Rlogin is a protocol that allows users to initiate a 
TCP/IP login session. UDP (User Datagram Protocol) is a 
connectionless protocol that results in smaller packet headers, no 
session overhead, and the ability to send to multiple hosts. The 
MSS also supports the use of Domain Name Servers (DNS), 
allowing a network nameserver to translate text node names into 
numeric IP addresses.