AALATM适配层ATMAdaptationLayer
ABR可用比特率AvailableBitRate
ACR衰减串扰比
ADPCM自适应差分PCM
ADSL非对称数字环路AsymmetricDigitalSubscriberLine
AMIATMManagementInterface
AMPS先进型移动电话系统AdvancedMobilePhoneSystem
ANS高级网络与服务AdvancedNetworksandServices
ANSI美国国家标准协会AmericanNationalStandardInstitute
APON无源光纤网络
ARP地址解析协议AddressResolutionProtocol
ARQ自动重发请求AutomaticRepeatRequest
AS自制系统AutonomousSystem
ASICApplicationSpecificIntegratedCircuit(Chip)
ASN.1AbstractSyntaxNotationOne
ATD异步时分复用AsynchronousTimeDivision
ATM异步传输模式AsynchronousTransferMode
BBS电子公告板BulletinBoardSystem
BER误比特率biterrorrate
BGP边界网关协议BorderGatewayProtocol
BICMOS双极型CMOS
BIP-8BitInterleavedParity-8
B-ISDN宽带综合业务数字网BroadbandIntegratedServicesDigitalNetwork
BMIBus-MemoryInterface
BOOTP引导协议BOOTstrappingProtocol
BRI单一ISDN基本速率
BUS广播和未知服务器Broadcast/UnknownServer
CAC连接接纳控制ConnectionAdmissionControl
CATV公用天线电视
CBDS无连接宽带数据服务
CBR连续比特率ContinuousBitRate
CCITT国际电话电报咨询委员会
CDCarrierDetect
CDBConfigurationDatabase
CDMA码分多址CodeDivisionMultipleAccess
CDPD蜂窝数字分组数据CellularDigitalPacketData
CDV信元延时变化CellDelayVariation
CECCommonEquipmentCard
CERNET中国教育科研网
CIDR无类型域间路由ClasslessInterDomainRouting
CLIPClassicalIP
CLP信元丢失优先级
CMIS/CMIPtheCommonManagementInformationService/Protocol
CMOS互补型金属氧化物半导体
CMOTCMIS/CMIPonTCP/IP
CNOM网络营运与管理专业委员会CommitteeofNetworkOperationandManagement
CORBA公共对象请求代理结构CommonObjectRequestBrokerArchitecture
CPANComprehensivePerlarchieveNetwork
CPECustomerPremisesEquipment
CPCS公共部分会聚子层CommonPartConvergenceSublayer
CRCarriageReturn
CS会聚子层ConvergenceSublayer
CSDN电路交换数据网
CSMA/CD载波侦听多路访问/冲突检测CarrierSenseMulti-Access/CollisionDetection
DACDualAttachConcentrator
DASDualAttachStation
DCDDataCarrierDetect
DCE数据电路端接设备DigitalCircuit-terminatingEquipment
DHCP动态主机控制协议
DIME直接内存执行DirectMemoryExecute
DME分布式管理环境DistributedManagementEnvironment
DNS域名系统DomainNameSystem
DPI每英寸可打印的点数DotPerInch
DQDB分布式队列双总线DistributedQueueDualBus
DS-3DigitalStandard-3
DSMA数字侦听多重访问DigitalSenseMultipleAccess
DSPDigitalSignalProcessing
DTE数据终端设备DataTerminalEquipment
DTRDataTerminalReady
DVMRP距离向量多目路径协议DistanceVectorMulticastRoutingProtocol
ECL硅双极型
ECSRN华东南地区网
EGP外部网关协议ExteriorGatewayProtocol
EIA/TIAElectronicIndustriesAssociationandtheTelecommunicationIndustriesAssociation
EMA以太网卡EthernetMediaAdapter
E-mail电子邮件ElectronicMail
EPD提前舍弃分组数据包
FAQ常见问题解答FrequentlyAnswerQuestion
FCS快速电路交换FastCircuitSwitching
FDDI光纤分布式数据接口FiberDistributedDataInterface
FDM频分多路复用FrequencyDivisionMultiplexing
FEC前向差错纠正ForwardErrorCorrection
FEMA快速以太网卡FastEthernetMediaAdapter
FEXT远端串扰
FITL光纤环路
FMAFDDI网卡FDDIMediaAdapter
FOIRLFiberOpticInter-repeaterLink
FTP文件传输协议FileTransferProtocol
FTTC光纤到楼群FiberToTheCurb
FTTH光纤到户FiberToTheHome
GCRA通用信元速率算法GenericCellRateAlgorithm
GGP网关-网关协议Gateway-GatewayProtocol
GSM移动通信全球系统(全球通)GlobalSystemsforMobilecommunications
HEC信头错误控制HeaderErrorControl
HCS头校验序列HeaderCheckSequence
HDLC高级数据链路控制（协议）High-LevelDataLinkControl
HDTV数字高清晰度电视HighDefinitionTeleVision
HFC混合光纤同轴HybridFiberCoax
HIPPI高性能并行接口HighPerformanceParallelInterface
HOL队头阻塞
HTTP超文本传输协议HyperTextTransferProtocol
Hub集线器
IAB因特网结构委员会InternetArchitectureBoard
IAP因特网接入提供商InternetAccessProvider
ICCBInternet控制与配置委员会InternetControlandConfigurationBoard
ICMP因特网控制信息协议InternetControlMessageProtocol
ICPInternetContentProvider
ICX部件间交换Inter-CartridgeExchange
IDP网间数据报协议InternetworkDatagramProtocol
IDU接口数据单元InterfaceDataUnit
IEEE电子和电气工程师协会InstituteofElectricalandElectronicsEngineers
IETF因特网工程特别任务组InternetEngineeringTaskForce
IGMPInternet组管理协议InternetGroupManagementProtocol
IGP内部网关协议InteriorGatewayProtocol
IISP间歇交换机信令协议
ILMI过渡性局域管理界面(?)
IMP接口信息处理机InterfaceMessageProcessor
IMTS改进型移动电话系统EmprovedMobileTelephoneSystem
IP因特网协议InternetProtocol
IRCInternetRelayChat
IRTF因特网研究特别任务组InternetResearchTaskForce
ISDN综合业务数字网IntegratedServicesDigitalNetwork
ISO国际标准化组织InternationalOrganizationforStandardization
（或简称InternationalStandardOrganization）
ISP因特网服务提供商InternetServiceProveder
IT信息技术InformationTechnology
ITU国际电信联盟InternationalTelecommunicationsUnion
JPEG图像专家联合小组JointPhotographicExpertsGroup
L2F第二层转发
L2TP第二层隧道协议
LAN局域网LocalAreaNetwork
LANE局域网仿真LANEmulation
LAP链路访问过程LinkAccessProcedure
LCP链路控制协议LinkControlProtocol
LE_ARPLAN仿真地址转换协议
LEC局域网仿真客户端LANEmulationClient
LECS局域网仿真配置服务LANEmulationConfigureService
LED发光二极管
LES局域网仿真服务器LANEmulationServer
LFLineFeed
LI长度指示
LIM插件板
LLC逻辑链路控制LogicalLinkControl
MAC介质访问控制MediaAccessControl
MAN城域网MetropolitanAreaNetwork
MACA避免冲突的多路访问(协议)
(IEEE802.11无线局域网标准的基础)MultipleAccesswithAccessAvoidance
MAUMediumAccessUnit
MIB管理信息库ManagementInformationBase
MICMediainterfaceconnector
Modem调制解调器
MOTD当日消息MessageOfTheDay
MPCMPOAClient
MPEG活动图像专家组MotionPictureExpertsGroup
MRFCS多速率快速电路交换MultirateFastCircuitSwitching
MPOAMulti-ProtocolOverATM
MPSMPOAServer
MRCS多速率电路交换MultirateCircuitSwitching
MSC移动交换中心MobileSwitchingCenter
MTBF两次故障间的平均时间MediaTimeBetweenFaults
MTOR故障修复所需平均时间MediaTimeofRepair
MTP邮件传输协议MailTransferProtocol
MTSO移动电话交换站MobileTelephoneSwitchingOffice
MTTD故障诊断所需平均时间MediaTimetoDiagnose
MTU最大传输单元MaximumTransferUnit
NAP网络接入点NetworkAccessPoint
NCA网络计算结构NetworkComputingArchitecture
NCFC中国国家计算机网络设施，国内也称中关村网TheNationalComputingandNetworkFacilityofChina
NCP网络控制协议NetworkControlProtocol
NCP网络核心协议NetworkCoreProtocol
NEXT近端串扰
NFS网络文件系统NetworkFileSystem
NHRP下一个节点路由协议
NHSNHRPServer
NICNull-AttachConcentrator
NIC网卡NetworkInterfaceCard
NIC网络信息中心NetworkInformationCentre
NIM网络接口模块NetworkInterfaceModule
NISDN窄带ISDNNarrowbandIntegritedServicesDigitalNetwork
NLAM网络层地址管理
NNI网络-网络接口Network-NetworkInterface
NOMS网络营运与管理专题讨论会NetworkOperationandManagementSymposium
NREN（美国）国家研究和教育网NationalResearchandEducationNetwork
NSAP网络服务接入点NetworkServiceAccessPoint
NSF（美国）国会科学基金会
NVRAMNon-volatileRAM
NVT网络虚拟终端NetworkVirtualTerminal
OAM操作与维护OperationAndMaintenance
ODBC开放数据库互连OpenDatabaseConnection
ORB对象请求代理ObjectREquestBroker
OSF开放软件基金会OpenSoftwareFundation
OSI开放系统互联OpenSystemInterconnection
OSPF开放最短路径优先(协议)OpenShortestPathFirst
PBX用户交换机PrivateBrancheXchange
PCM脉冲编码调制PulseCodeModulation
PCN个人通信网络PersonalCommunicationsNetwork
PCR峰值信元速率PeakCellRate
PCS个人通信服务PersonalCommunicationsService
PDH准同步数字系列
PDA个人数字助理PersonalDigitalAssistant
PDN公用数据网PublicDataNetwork
PDU协议数据单元ProtocolDataUnit
PER分组差错率packeterrorrate
PEMPortExpansionModule
PIR分组插入率packetinsertionrate
PI/SOPrimaryIn/SecondaryOut
PLCP物理层会聚协议PhysicalLayerConvergenceProtocol
PLR分组丢失率packetlossrate
PMD物理媒体相关（子层）PhysicalMediumDependent
POH通道开销
PON无源光纤网
POPPostOfficeProtocol
PO/SIPrimaryOut/SecondaryIn
POTS普通老式电话业务PlainOldTelephoneService
PPD部分舍弃分组数据包PartialPacketDiscard
PPP点到点协议PointtoPointProtocol
PPTP点对点隧道协议
PRM每分钟可打印输出的页数PagePerMinute
PRM协议参考模型ProtocolReferenceModel
PRN分组无线网PacketRadioNetwork
PSN分组交换节点PacketSwitchNode
PSDN分组交换数据网
PSTN公用电话交换网PublicSwitchedTelephoneNetwork
PVC永久虚电路（包括PVPC和PVCC）PermanentVirtualCircuit
PVPCpermanentvirtualpathconnection
PVCCpermanentvirtualchannelconnection
PVP永久虚路径PermanentVirtualPath
QoS服务质量QualityofService
RADIUS远端授权拨号上网用户服务
RARP逆向地址解析协议ReverseAddressResolutionProtocol
RAS远程访问服务器
RFC请求评注RequestforComments
RFTRequestforTechnology
RIPRoutingInformationProtocol
RMON远程网络管理
Router路由器
RPC远程过程调用RemoteProcedureCall
RSVP资源重复利用协议
RTMPRoutingTableMaintenanceProtocol(用于Appletalk)
RTP接收和发送端口
RTS往返样本RoundTripSample
RTS剩余时间标签
SAP业务接入点ServiceAccessPoint
SAP服务公告协议ServiceAdvertisingProtocol
SAR分段和重组(子层)SegmentationandReassembly
SASSingleAttachedStation
SCStickandClickconnector
SCR信号串扰比
SCR持续信元速率SustainedCellRate
SCS交换控制软件
SDH同步数字系列SynchronousDigitalHierarchy
SDLC同步数据链路控制(协议)AdvancedDataCommunicationControlProcedure
SDTV标准数字电视
SDU业务数据单元ServiceDataUnit
SIPP增强的简单因特网协议SimpleInternetProtocolPlus
SLIP串行线路IPSerialLineInterfaceProtocol
SMDS交换式多兆比特数据业务SwitchedMultimegabitDataServices
SMF单模光纤Single-modeFiber
SMIStructureofManagementInformation（MIB的结构）
SMT站点管理StationManagement
SMTP简单邮件传输协议SimpleMailTransferProtocol
SNA系统网络体系结构SystemNetworkArchitecture
SNMP简单网络管理协议SimpleNetworkManagementProtocol
SNR信噪比Signal-Noiseratio
SOH段开销
SONET同步光纤网络SynchronousOpticalNetwork
SPE同步净荷包SynchronousPayloadEnvelope
SPP定序分组协议
（XNS中，相当于TCP）SequentialPacketProtocol
SRTS同步剩余时间标签法
SSCS业务特定部分会聚子层
SSI服务器端包含ServerSideInclude
STStickandTurnconnector
STM同步传输方式SynchronousTransferMode
STP屏蔽双绞线ShieldedTwistedPair
STS同步传输信号SynchronousTransportSignal
SVC交换虚电路SwitchedVirtualCircuit
Switch交换机
TACTechnicalAssistanceCenter
TAST时间分配话音插空技术TimeAssignmentbySpeechInterpolation
TC传输汇集(子层)TransmissionConvergence
TCP传输控制协议TransmissionControlProtocol
TDM时分多路复用TimeDivisionMultiplexing
TFTP单纯文件传输协议TrivialFileTransferprotocol
TIP终端接口处理机TerminalInterfaceProcessor
TP双绞线TwistedPair
TSAP传输层服务访问点TransportServiceAccessPoint
TTL生存时间TimeToLive
TTR定时令牌旋转
UBR未定义比特率UndefinedBitRate
UEM通用以太网模块UniversalEthernetModule
UDP用户数据报协议UserDatagramProtocol
UIUnix国际
UNI用户-网络接口User-NetworkInterface
UPC使用参数控制UsageParameterControl
URL统一资源定位UniversalResourceLocator
USB通用串行总线UniversalSerialBus
UTP非屏蔽双绞线UnshieldedTwistedPair
UUCPUnixtoUnixCopyProgram
VAN增值网ValueAddedNetwork
VBR可变比特率VariableBitRate
VCC虚信道连接VirtualChannelConnection
VCIvirtualchannelidentifier
V-D向量-距离（算法）
又叫Bellman-Ford算法）vector-distance
VLANVirtualLAN
VLSI超大规模集成电路
VOD点播图像VideoonDemand
VPC虚路径连接VirtualPathConnection
VPI虚路径标识virtualpathidentifier
VPN虚拟专用网络VirtualPrivateNetwork
VRML虚拟现实造型语言VirtualRealityModelingLanguage
VTP虚拟隧道协议
WAN广域网WideAreaNetwork
WDM波分多路复用WavelengthDivisionMultiplexing
WDMA波分多路访问WavelengthDivisionMultipleAccess
WRBWeb请求代理WebRequestBroker
WWW万维网WorldWideWeb