Uniden DCX200 Manual Do Utilizador

 

 

 

 

63

Static Routing – 

Forwarding data in a network via a fixed path.   

Static routing cannot adjust to changing line conditions as can dynamic routing. 

 

Subnet Mask – 

The method used for splitting IP networks into a series of 

subgroups, or subnets.  The mask is a binary pattern that is matched up with 

the IP address to form part of the host ID address field into a field for subnets.

 

 

Switch  – 

1. A data switch connects computing devices to host computers, 

allowing a large number of devices to share a limited number of ports.   

2. A device for making, breaking, or changing the connections in an electrical 

circuit.

 

 

TCP 

(Transmission  Control  Protocol)  – A method (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 keeps track of the individual units of data (called 

packets) that a message is divided into for efficient routing through the

 

Internet.

 

 

TCP/IP  – 

Transmission  Control  Protocol/Internet  Protocol (TCP/IP) is the 

basic communication language or protocol of the Internet.  It can also be used 

as a communication protocol in a private network (either an intranet or an 

extranet).  When you are set up with access to the Internet, your computer is 

uses the TCP/IP protocol. 

 

 (Trivial File Transfer Protocol) – A version of the TCP/IP FTP protocol 

that has no directory or password capability.

 

 

 

 

 

 

64

Throughput  – 

The amount of data moved successfully from one place to 

another in a given time period.

 

 

Topology  – 

A network’s topology is a logical characterization of how the 

devices on the network are connected and the distances between them.   

The most common network devices include hubs, switches, routers, and 

gateways.  Most large networks contain several levels of interconnection, the 

most

 

important of which include edge connections, backbone connections, and

 

wide-area connections.

 

 

UDP 

(User Datagram Protocol)  – A communications method (protocol) that 

offers a limited amount of service when messages are exchanged between 

computers in a network that uses the Internet Protocol (IP).  UDP is an 

alternative to the Transmission Control Protocol (TCP) and, together with IP, is 

sometimes referred to as UDP/IP.  Like the Transmission Control Protocol, 

UDP uses the Internet Protocol to actually get a data unit (called a datagram) 

from one computer to another.  Unlike TCP, however, UDP does not provide 

the service of dividing a message into packets (datagrams) and reassembling it 

at the other end.  Specifically, UDP doesn’t provide sequencing of the packets 

that the data  arrives in.  This means that the application program that uses 

UDP must be able to make sure that the entire message has arrived and is in 

the right order.  Network applications that want to save processing time 

because they have very small data units to exchange (and therefore very little 

message reassembling to do) may prefer UDP to TCP.

 

 

Upgrade –

 To replace existing software of firmware with a newer version.