Glossary
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Internet
The global interconnection ofTCP/IPbased computercommunication networks.
IP
InternetProtocol.Acommon networklayerprotocol. IPismostoften used with
TCP.
IPAddress
InternetProtocolAddress.A32--bitaddressassigned to hostsusing TCP/IP.
layer
Inthe OSImodel,a portion of the structure ofa devicewhich providesdefined
servicesforthe transferofinformation.
MAC Address
MediaAccess Controladdress.The hardware address ofa device.AMAC
address isassigned toanEthernetTCP/IPmoduleinthe factory.
network
Interconnected devices sharingacommon data path and protocolfor
communication.
node
An addressable deviceonacommunicationsnetwork.
OSImodel
Open SystemInterconnection model.Areferencestandard describing the
required performance ofdevicesfordatacommunication.Produced bythe
InternationalStandardsOrganization.
packet
The unitofdatasentacross a network.
PING
PacketInternetGroper.Aprogramused totestwhethera destination on a network
can be reached.
port
An access point fordata entryorexitwithin a hostusing TCPservices.
protocol
Describesmessage formatsand a setofrulesused bytwo ormore devicesto
communicate using thoseformats.