TCP/IP: Transfer Control Protocol/Internet Protocol

IPX/SPX: Internetwork Packet Exchange/Sequenced Packet Exchange

NDS: Netware Directory Services

WinNT: New Technology

OSI Model: Open Systems Interconnection

LLC: Logical Link Control

MAC: Media Access Control

CRC: Cyclical Redundancy Check

LAN: Local Area Network

WAN: Wide Area Network

NAP: Network Access Point

NIC: Network Interface Card

CSU/DSU: Channel Service Unit/Data Service Uniti

BNC: British Navel Connector OR Bayonet Neil-Concelman connector

MAU: Multi-station Access Unit

IEEE: Institute of Electrical and Electronics Engineers

CSMA/CD: Carrier-Sensed Multiple Access/Collision Detection

CSMA/CA: Carrier-Sensed Multiple Access/Collision Avoidance

MAN: Municipal Area Network

FDDI: Fibre Distributed Data Interface

IRQ: Interrupt ReQuest

DMA: Direct Memory Access

RFC: Request For Comments

UDP: Universal Datagram Protocol

STD: Internet STandarD

ICANN: Internet Corporation for Assigned Names and Numbers

CIDR: Classless InterDomain Routing

IPv6: Internet Protocol version 6

NAT: Network Address Translation

RIP: Routing Information Protocol

OSPF: Open Shortest Path First

NLSP: NetWare Link Services Protocol

SAP: Service Advertising Protocol

EGP: Exterior Gateway Protocol

BGPv4: Border Gateway Protocol version 4

ARP: Address Resolution Protocol

MIME: Multi-purpose Internet Mail Extentions

TFTP: Trivial File Transfer Protocol

VPN: Virtual Private Network

POTS: Plain Old Telephone Service

PSTN: Publicly Switched Telephone Network

ISDN: Integrated Services Digital Network

BRI: Basic Rate Interface

PRI: Primary Rate Interface

RAS: Remote Access Server

PPP: Point to Point Protocol

PPTP: Point to Point Tunnelling Protocol

ssh: Secure Shell

SOP: Standard Operating Procedure

UNC: Universal Naming Convention

RAID: Redundant Arrays of Inexpensive Disks

UPS: Uninterruptable Power Supply

ERC: Emergency Repair Disk

DMZ: DeMilitarized Zone (firewall)