Significado de las siglas más usadas en Comunicaciones

A BT...... Burst Tolerance A/D ...... Analog to Digital conversion BTS...... Base Transceiver Station AAA...... Authentication, Authorization, and BTU...... British thermal units Accounting C AAL ...... ATM Adaptation Layer CAR...... Committed Access Rate AARP...... AppleTalk Address Resolution Protocol CAS...... Channel Associated Signaling ABM ...... Asynchronous Balanced Mode CATV...... Cable Television ABM ...... Accunet Bandwidth Manager CBR...... Constant Bit Rate ABR ...... Available Bit Rate CCITT ...... Consultative Committee for International ABRD ...... Automatic Baud Rate Detection Telegraph and Telephone ACD...... Automatic Call Distributor CCR...... Commitment, Concurrency, and Recovery ACK...... Acknowledgement Code CCS ...... Common Channel Signaling ACR ...... Allowed Cell Rate CCSS7...... Common Channel Signaling System 7 ACS...... Asynchronous Communications Server CD ...... Carrier Detect ADCCP...... Advanced Data Communications Control CDDI...... Copper Distributed Data Interface Protocol CDMA...... Code Division Multiple Access ADPCM...... Adaptative Differential PCM CDPD...... Cellular Digital Packet Data ADSL...... Asymmetric Digital Subscriber Line CDR...... Call Detail Record ADSP ...... AppleTalk Data Stream Protocol CELP...... Code Excited Linear Prediction AIM...... Asynchronous Interface Module CEN...... European Committee for Standardization ANI ...... Automatic Number Identification CENELEC .....Comite Europeen de Normalisation ANSI ...... American National Standards Institute Electrotechnique API...... Application Program Interface CER...... Cell Error Ratio APPN ...... Advanced Peer-to-Peer Networking CES...... Circuit Emulation Service ARCnet ...... Attached Resource Computer Network CGI...... Common Gateway Interface. ARP...... Address Resolution Protocol CHAP ...... Challenge Handshake Authentication ARPANET..... Advanced Research Projects Agency Protocol Network CID ...... Channel ID ASCII...... American Standard Code for Information CIR ...... Committed Information Rate Interchange CLEC...... Competitive Local Exchange Carrier ASP ...... Aplication Service Provider CLI...... Command Line Interface ASP ...... AppleTalk Session Protocol CLP...... Cell Loss Priority ASP ...... Auxiliary signal path CLR...... Cell Loss Ratio ATDM...... Asynchronous Time Division Multiplexing CO ...... Central office ATM...... Asynchronous Transfer Mode COFRAD ...... Central Office Frame Relay access Device AUI ...... Attachment Unit Interface COIPX...... Connection Oriented IPX AVM ...... ATM Voice Multiplexer CONP ...... Connection-Oriented Network Protocol B CoS...... Class of Service B8ZS...... Binary 8-Zero Substitution CPE...... Customer Premises Equipment BC ...... Committed Burst CPS...... Cells Per Second BDCS...... Broadband Digital Cross-Connect System CRC...... Cyclic Redundancy Check BE...... Excess Burst CSMA/CD .....Carrier Sense Multiple Access Collision BECN...... Backward Explicit Congestion Notification Detect BER...... Bit Error Rate CSU...... Channel Service Unit BERT ...... Bit Error Rate Test CTS...... Clear to Send BGP...... Border Gateway Protocol D BGP4...... BGP version 4 DAC ...... Dual-Attached Concentrator BICI...... Broadband Inter-Carrier Interface DACS...... Digital Access and Crossconnect System BISDN ...... Broadband ISDN DAP...... Directory Access Protocol BNI...... Broadband Network Interface DAS...... Dual Attachment Station BRI...... Basic Rate Interface DAS...... Dynamically Assigned Socket BNM ...... Broadband Network Module DCC...... Data Communications Channel BNN...... Boundary Network Node DCC...... Data Country Code BPI ...... Baseline Privacy Interface DCE...... Data Communications Equipment BRA ...... Basic Rate Access DCN ...... Data Communications Network BRI...... Basic Rate Interface DCOM...... Distributed Component Object Model BSC...... Binary Synchronous Communication DCS...... Digital Crossconnect System BSS ...... Base Station Subsystem 1/5

DEA ...... Data Encryption Algorithm G DEK ...... Data Encryption Key GCRA...... Generic Cell Rate Algorithm DES...... Data Encryption Standard GGP...... Gateway-to-Gateway Protocol DHCP...... Dynamic Host Configuration Protocol GNS...... Get Nearest Server DIN ...... Deutsche Industrie Norm GPRS...... General Packet Radio Service DLCI...... Data Link Connection Identifier GSM ...... Global System for Mobile DLL...... Dynamic Link Library GSN...... GPRS Support Node DLSW...... Data-Link Switching GTP ...... GPRS Tunneling Protocol DMZ...... Demilitarized Zone GUI...... Graphical User Interface DNS...... Domain Name System DOCSIS...... Data-over-Cable Service Interface H Specifications HDLC...... High-level Data Link Control DOS...... Denial of Service HDSL ...... High Data Rate Digital Subscriber Line DSL...... Digital Subscriber Line HEC...... Header Error Control DSLAM ...... Digital Subscriber Line Access HFC...... Hybrid Fiber-Coaxial Multiplexer HSSI...... High-Speed Serial Interface DSP ...... Digital Signal Processing HTML ...... Hypertext Markup Language DSSS...... Direct Sequence Spread Spectrum HTTP...... HyperText Transfer Protocol DSU...... Data Service Unit I DTE...... Data Terminal Equipment IAC ...... Initial Alignment Control DTMF ...... Dual Tone Multi-Frequency IAHC...... Internet International Ad Hoc Committee DVB...... Digital Video Broadcasting IANA...... Internet Assigned Numbers Authority DVMRP...... Distance Vector Multicast Routing IBC ...... In-Band Control Protocol ICC ...... Interface Controller Card DXI ...... Data Exchange Interface ICM ...... Intelligent Call Management DYNDNS...... Dynamic Domain Name System ICMP...... Internet Control Message Protocol E ICR ...... Initial Cell Rate E&M ...... recEive and transMit IDEA ...... International Data Encryption Algorithm EAP...... Extensible Authentication Protocol IDI ...... Initial Domain Identifier ECDSA ...... Elliptic Curve Digital Signature Algorithm IDN...... International Data Number ECM...... Error Correction Mode IDSL...... Digital Subscriber Line EECM ...... End-to-End Call Manager IEC...... International Electrotechnical Commission EFCI...... Explicit Forward Congestion Indication IEEE ...... Institute of Electrical and Electronics EGP...... Exterior Gateway Protocol Engineers EIA...... Electronic Industries Alliance IEPG...... Internet Engineering Planning Group EIRP...... Effective Isotropic Radiated Power IETF ...... Internet Engineering Task Force EISA...... Extended Industry-Standard Architecture IF...... Intermediate Frequency ELAN...... Emulated LAN IGMP...... Internet Group Management Protocol ELMI...... Enhanced Local Management Interface IGP...... Interior Gateway Protocol EOM...... End of Message IKE ...... Internet Key Exchange EOT...... End of Transmission ILMI...... Interim Local Management Interface EPD...... Early Packet Discard IMA...... Inverse Multiplexing Over ATM ERP ...... Effective Radiated Power IMAP...... Internet Message Access Protocol ETSI...... European Telecommunications Standards IPMAP4 ...... IMAP version 4 Institute INAP...... Intelligent Network Application Part INCRP...... Intelligent Network Call Routing Protocol F INE ...... Intelligent Network Element FCC...... U.S. Federal Communications Commission INOC...... Internet Network Operations Center FDDI...... Fiber Distributed Data Interface IP...... Internet Protocol FH-CDMA..... Frecuency Hopping Code Division IPCP ...... IP Control Protocol Multiple Access (FHSS) IPSEC...... IP Security FHSS...... Frecuency Hopping Spread Spectrum IPv6 ...... IP version 6 FRAD...... Frame Relay Access Device IPX...... Internetwork Packet Exchange FSL...... Free Space Loss IRDP...... ICMP Router Discovery Protocol FTP...... File Transfer Protocol IRTF...... Internet Research Task Force FXO...... Foreign Exchange Operator/Office ISA...... Industry-Standard Architecture FXS ...... Foreign Exchange Station/Subscriber ISAKMP ...... Internet Security Association and Key Management Protocol 2/5

ISDN ...... Integrated Services Digital Network MARS ...... Multicast Address Resolution Server ISM ...... Internetwork Status monitor MAU...... Media Attachment Unit ISOC ...... Internet Society MBS ...... Maximum Burst Size ISP...... Internet Service Provider MCDV...... Maximum Cell Delay Variation ISSI ...... Inter-Switching System Interface MCLR ...... Maximum Cell Loss Ratio ITCM ...... Integrated Telephony Cable Modem MCR...... Minimum Cell Rate ITU...... International Telecommunication Union MCTD ...... Maximum Cell Transfer Delay IVR...... Interactive Voice Response MD5 ...... Message Digest 5 J MDS...... Message Delivery Service MGC...... Media Gateway Controller JDBC...... Java Database Connectivity MGCP ...... Media Gateway Control Protocol JPEG ...... Joint Photographics Expert Group MIB ...... Management Information Base JTAPI...... Java Telephony Application Programming MID ...... Message Identifier Interface MII...... Media Independent Interface K MILNET ...... Military Network KTS...... Key Telephone System MIME...... Multipurpose Internet Mail Extension L MLP...... Multilink PPP L2F...... Layer Two Forwarding MLS...... Multilayer Switching MMDS ...... Multichannel Multipoint Distribution L2TP ...... Layer Two Tunneling Protocol Service LAC...... L2TP Access Concentrator MMF ...... Multi Mode Fiber LAN ...... Local Area Network LAN ...... LAN Emulation MMLS-RP .....Multicast MLS-Route Processor LAPD...... Link Access Procedure on the D channel MMLS-SE...... Multicast MLS-Switching Engine LAPM ...... Link Access Procedure for Mode MMP ...... Multichassis Multilink PPP LAT...... Local Area Transport MOSPF...... Multicast OSPF LATA...... Local Access and Transport Area MOSS...... MIME Object Security Services MPEG...... Motion Picture Experts Group LBR...... Label Bit Rate MPLS ...... Multiprotocol Label Switching LCI...... Logical Channel Identifier LCN...... Logical Channel Number MPOA...... Multiprotocol over ATM LCP ...... Link Control Protocol MQI...... Message Queuing Interface LDCELP...... Low-Delay CELP MRM...... Multicast Routing Monitor LDP...... Label Distribution Protocol MRP ...... Multiservice Route Processor LEC...... LAN Emulation Client MSB ...... Most Significant Bit LEC...... Local Exchange Carrier MSCHAP...... Microsoft CHAP MSU ...... Message Signal Unit LECS...... LAN Emulation Configuration Server LEARP...... LAN Emulation ARP MTBF...... Mean Time Between Failures LES ...... LAN Emulation Server MTTR...... Mean Time To Repair LLC...... Logical Link Control MTU...... Maximum Transmission Unit MUX...... Multiplexer LLC2...... Logical Link Control type 2 LMDS ...... Local Multipoint Distribution Service N LMI...... Local Management Interface NACS...... NetWare Asynchronous Communication LNNI...... LANE NNI Services LNM...... LAN Network Manager NACK ...... Negative Acknowledgement Code LNS...... L2TP Network Server NAP...... Network Access Point LOCD...... Loss of Cell Delineation NAS...... Network Access Server LOF...... Loss of Frame NAT...... Network Address Translation LOS...... Line of Sight NBFCP...... NetBIOS Frames Control Protocol LR...... Long Reach NCP...... Network Control Protocol LSA...... Link-State Advertisement NDIS...... Network Driver Interface Specification LSB ...... Least Significant Bit NETBEUI ...... NetBIOS Extended User Interface LUNI...... LANE UNI NETBIOS...... Network Basic Input/Output System LVC...... Label Switched Controlled Virtual Circuit NHRP ...... Next Hop Resolution Protocol M NHS...... Next Hop Server MAC ...... Media Access Control NIC ...... Network Interface Card NLOS ...... Near Line of Sight MAE...... Metropolitan Access Exchange NLSP...... Network Layer Security Protocol MAN ...... Metropolitan Area Network NMS...... Network Management System MAP...... Manufacturing Automation Protocol NNI...... Network to Network Interface 3/5

NOC...... Network Operations Center QAM...... Quadrature Amplitude Modulation NOS...... Network Operating System QLLC ...... Qualified Logical Link Control NRM ...... Normal Response Mode QoS...... Quality of Service NTP...... Network Time Protocol QPPB...... QoS Policy Propagation on BGP NTSC ...... National Television Systems Committee QPSK...... Quaternary Phase Shift Keying O QRSS...... Quasi-Random Signal Sequence OADM...... Optical Add Drop Multiplexer R OBC ...... Out-of-Band Control RADIUS...... Remote Authentication Dial-In User OCC ...... Originating Call Control Service OC-n...... SONET Optical Carrier, Level n RAI...... Request Aditional Information ODBC ...... Open DataBase Connectivity RARP ...... Reverse Address Resolution Protocol ODI ...... Open Data-Link Interface RAS...... Remote Access System OFDM...... Ortogonal Frecuency Division RCP ...... Remote Copy Protocol Multiplexing RCV...... Receive OIM...... OSI Internet Management RDI...... Remote Defect Indication OOS...... Out-of-Service RF...... Radio Frecuency OSI...... Open System Interconnection RFC ...... Request for Comments OSPF...... Open Shortest Path First RFI...... Radio Frequency Interference P RIP...... Routing Information Protocol RISC...... Reduced Instruction Set Computing P2MP ...... Point-to-Multipoint RLM ...... Redundant Link Manager P2P...... Point-to-Point RMON...... Remote Monitoring PABX...... Private Automatic Branch Exchange RPF...... Reverse Path Forwarding PAD...... Packet Assembler/Disassembler RPR ...... Restore Path Request PAL...... Phase Alternating Line RRQ...... Registration Request PAM...... Port to Application Mapping RSL...... Received Signal Level PAM...... Pulse Amplitude Modulation RSVP...... Resource Reservation Protocol PAP ...... Password Authentication Protocol RTCP...... Real-time Transfert Control Protocol PAT...... Port Address Translation RTMP...... Routing Table Maintenance Protocol PBX...... Private Branch Exchange RTP...... Real-Time Transport Protocol PCI ...... Protocol Control Information RTP...... Routing Table Protocol PCM...... Pulse Code Modulation RTS...... Request To Send PCR...... Packet Cell Rate RTSP ...... Real Time Streaming Protocol PCS ...... Personal Communications Service RTT ...... Round-Trip Time PCS ...... Port Concentrator Switch RUDP ...... Reliable User Data Protocol PCU...... Packet Control Unit PDN...... Public/Private/Packet Data Network S PDU...... Protocol Data Unit SAN...... Storage Area Networking PHY...... Physical Sublayer SCTE...... Serial Clock Transmit External PIM ...... Protocol Independent Multicast SDH...... Synchronous Digital Hierarchy PNNI...... Private Network-Network Interface SDLC...... Synchronous Data Link Control PoE...... Power over Ethernet SDSL...... Symmetric Digital Subscriber Line POP ...... Point Of Presence SGCP...... Simple Gateway Control Protocol POP3 ...... Post Office Protocol ver. 3 SGMP...... Simple Gateway Monitoring Protocol POTS...... Plain Old Telephone Service SID...... Service ID PPP...... Point-to-Point Protocol SIP ...... Session Initiated Protocol PPPoE ...... Point-to-Point Protocol over Ethernet SIP ...... SMDS Interface Protocol PPS...... Packet per Second SLC...... Signaling Link Code PPTP ...... Point-to-Point Tunneling Protocol SLIP...... Serial Line Internet Protocol PRI ...... Primary Rate Interface SMDS...... Switched Multimegabit Data Service PSDN ...... Packet-Switched Data Network SMF...... Single-Mode Fiber PSE...... Packet Switch Exchange SMRP ...... Simple Multicast Routing Protocol PSN ...... Packet-Switched Network SMTP ...... Short for Simple Mail Transfer Protocol PSTN...... Public Switched Telephone Network SNA...... Systems Network Architecture PU...... Physical Unit SNAP...... Subnetwork Access Protocol PVC...... Permanent Virtual Circuit SNI...... Subscriber Network Interface PVP ...... Permanent Virtual Path SNI...... SNA Network Interconnection Q SNMP...... Simple Network Management Protocol 4/5

SNMP2 ...... SNMP Version 2 V SNR...... Signal-to-Noise Ratio VAD ...... Voice Activity Detection SOHO...... Small Office, Home Office VBR...... Variable Bit Rate SONET ...... Synchronous Optical Network VCC...... Virtual Channel Connection SPF...... Shortest Path First Algorithm VCD ...... Virtual Circuit Descriptor SPI...... Security Parameter Index VCI...... Virtual Channel Identifier SPID...... Service Profile Identifier VCL...... Virtual Channel Link SQL...... Structured Query Language VCN ...... Virtual Circuit Number SS7 ...... Signaling System 7 VDSL ...... Veri High Speed Digital Subscriber Line SSAP...... Source Service Access Point VID...... VLAN ID SSL...... Secure Socket Layer VINES...... Virtual Integrated Network Service SSP...... Switch-to-Switch Protocol VLAN...... Virtual Local Area Network STA...... Spanning Tree Algotithm VLI ...... Virtual LAN Internetwork STP...... Spanning Tree Protocol VoATM...... Voice Over ATM STP...... Shielded Twisted-Pair VoD...... Video On Demand SU...... Suscriber Unit VoFR...... Voice Over Frame Relay SVC...... Switched Virtual Circuit VoHDLC...... Voice Over HDLC T VoIP ...... Voice over IP TAC...... Terminal Access Controller VP...... Virtual Path TACACS ...... Terminal Access Controller Access VPC...... Virtual Path Connection Control System VPI...... Virtual Path Identifier TAPI...... Telephony Application Programming VPL ...... Virtual Path Link Interface VPN...... Virtual Private Network TARP ...... TID Address Resolution Protocol VRML...... Virtual Reality Modeling Language TB...... Transparent Bridging VSI...... Virtual Switch Interface TCA...... Telecommunications Access Method VTP ...... Virtual Terminal Protocol TCC...... Terminating Call Control VTY...... Virtual Type Terminal TCCS ...... Transparent Common Channel Signaling TCP ...... Transmission Control Protocol X TCP/IP ...... Transmission Control Protocol/Internet XMGCP ...... Xternal Media Gateway Control Protocols Protocol XML...... Extensible Markup Language TDM...... Time Division Multiplexing XOT...... X.25 over TCP TDMA...... Time Division Multiple Access W TFN...... Tribe Flood Network WAIS...... Wide Area Information Server TFTP ...... Trivial File Transfer Protocol WAN ...... Wide Area Network TIA...... Telecommunications Industry Alliance WAP...... Wireless Application Protocol TID...... Tunnel Identifier WCCP ...... Web Cache Communication Protocol TMN...... Telecommunication Management Network WDM...... Wavelength Division Multiplexing ToS...... Type of Service WEP ...... Wired Equivalent Privacy TSAPI...... Telephony Server Application Program WEPD ...... Weighted Early Packet Discard Interface WFQ...... Weighted Fair Queuing TTL...... Time To Live WRED...... Weighted Random Early Detection U WUI...... Windows User Interface UBR ...... Unspecified Bit Rate WWW ...... World Wide Web UCM ...... Universal Call Mode

Global Data International UCP...... User Control Point Constituyente 1872 UDLP...... UniDirectional Link Protocol 11200 Montevideo - Uruguay UDP...... User Datagram Protocol Tel.: (598 2) 411 2232* UL ...... Underwriters Laboratories Fax.: (598 2) 411 8949 ULP...... Upper-Layer Protocol UNI ...... User to Network Interface Global Data Argentina UPC...... Usage Parameter Control Hipólito Yrigoyen 1910 Apto. 3B UPSR ...... Unidirectional Path Switched Ring 1087 Buenos Aires - Argentina URL...... Uniform Resource Locator Tel.: (5411) 4952 2200 Fax.: (5411) 4952 2714 UTC...... Coordinated Universal Time UTP...... Unshielded Twisted-Pair Global Data Paraguay UTS...... Universal Terminal Support Eduardo Víctor Haedo 407 P3 Asunción - Paraguay Tel.: (595) 991317212 5/5

02/2005