I/O Input/Output
IAB Internet Architecture Board
ICCC International Computer Communication Conference
ICMP Internet Control Message Protocol
ID Identifier
IDL Interface Description Language
IETF Internet Engineering Task Force
IGMP Internet Group Management Protocol
IGP Interior Gateway Protocol
IHL IP Header Length
IIOP Internet Interoperable Protocol
IKE Internet Key Exchange
IMP Interface Message Processor
IMS IP Multimedia Subsystem
I-NNI Internal Network Node Interface
IntServ Integrated Services
IP Internet Protocol
IPPM IP Performance Metric
IPSec IP Secure
IPTO Information Processing Techniques Office
iptom IP topology management
IS Intermediate System
ISDN Integrated Services Digital Network
IS-IS Intermediate System to Intermediate System
Intra-Domain Routing Protocol
ISP Internet Service Provider
IST Creating a user-friendly information society
(5th EU research programme)
ITSP IP Telephony Service Provider
ITU International Telecommunication Union
ITU-T International Telecommunication Union
- Telecommunication Standardization Sector
JRE Java Runtime Environment
LAC Level 2 tunnel Access Concentrator
LAN Local Area Network
LDAP Lightweight Directory Access Protocol
LDP Label Distribution Protocol
LIB Label Information Base
LL Leased Line
L-LSP Label only inferred LSP
LND Layer Network Domain
LNS Level 2 tunnel Network Server
LP Linear Program
MAC Medium Access Control
MBZ Must Be Zero
MCU Multipoint Control Unit
MDRR Modified Deficit Round Robin
MDT Mean Down Time
MF MultiField
MG Media Gateway
MGC Media Gateway Controller
MGCP Media Gateway Control Protocol
MGW Media Gateway
MIB Management Information Base
MIP Mixed Integer Program
MO Managed Object
MOS Mean Opinion Score
MOSPF Multicast extensions to OSPF
MPEG Moving Picture Expert Group
MPLS Multi-Protocol Label Switching
MRF Multimedia Resource Function
MRP Measurement Reference Point
MS Mobile Station
MSC Mobile Switching Centre
MSL Maximum Segment Lifetime
MT Mobile Terminal
MTU Maximum Transfer UnitLPC Linear Predictive Code
LPDP Local Policy Decision Point
LSA Link State Advertisement/Announcement
LSP Label Switched Path
LSR Label Switching Router
LST Laplace-Stieltjes TransformNA Not Attainable
NAK Negative Acknowledgement (rejection)
NAP Network Access Point
NAS Network Access Server
NAT Network Address Translation
NCC Network Control Centre
ND Network Domain
NDRE Norwegian Defence Research Establishment
NE Network Element
NHLFE Next Hop Label Forwarding Entry
NMC Network Management Centre
NMF Network Management Forum
NMS Network Management System
NNI Network Node Interface
NO Network Operator
NP Network Performance