Computernetworknode
Indatacommunication,thenetworknodecanbeadatacommunicationequipment(DCE),suchasamodem,ahuborswitch,anetworkbridge,oradataterminalequipment(DTE)),suchasdigitaltelephoneterminals,printersorhosts(routers,workstationsorservers).
Networknodesareactuallynetworkunits,whicharevariousdataprocessingequipment,datacommunicationcontrolequipmentanddataterminalequipmentinacomputernetwork.Networknodescanbedividedintotwotypes:transfernodesandaccessnodes.Thenodesthatsupportnetworkconnectionperformancearecalledtransfernodes,whichtransferandtransferinformationthroughcommunicationlines,suchasterminalcontrollers,concentrators,etc.
Theaccessnodeisthesourcenodeandthetargetnodeofinformationexchange.Itfunctionsasasourceandsink,suchasaterminalandahostcomputer.
Telecommunicationsnetworknode
Inafixedtelephonenetwork,thenodemaybeapublicorprivatetelephoneexchange,ahuboraremotecomputertoprovidesomeintelligentnetworkservices.Incellularcommunication,MSC,BSC,HLR,GGSN,SGSN,etc.arealsonodes,butbasestationsaregenerallynotconsideredasnodes.