Category
page 1Link protocols
General Packet Radio Service
thumb|GPRS sign shown in notification bar of a Samsung Galaxy smartphone
token ring
technology developed by IBM for local area networks
data-link layer
second layer of the OSI networking model
Point-to-point protocol
a simple data link layer protocol used between two devices
Fiber Distributed Data Interface
standard for data transmission in a local area network
Asynchronous Transfer Mode
digital telecommunications protocol for voice, video, and data
Frame Relay
wide area network technology
Spanning Tree Protocol
network protocol that builds a loop-free logical topology for Ethernet networks
DOCSIS
Data Over Cable Service Interface Specification (DOCSIS) is an international telecommunications standard that permits the addition of high-bandwidth data transfer to an existing cable television (CATV) system. It is used by many cable television operators to provide cable Internet access over their existing hybrid fiber-coaxial (HFC) infrastructure.
Reverse Address Resolution Protocol
obsolete computer networking protocol
medium access control
service layer in IEEE 802 network standards
High-Level Data Link Control
bit-oriented code-transparent synchronous data link layer protocol
link aggregation
computer networking technology to increase throughput by using multiple connections in parallel
frame
data transmission unit
IP over Avian Carriers
proposal to carry IP traffic by birds
Neighbor Discovery Protocol
protocol in the Internet Protocol Suite used with IPv6
token bus network
computer network architecture
Serial Line Internet Protocol
encapsulation of the Internet Protocol designed to work over serial ports and modem connections
IEEE 802.1aq
IEEE standard for Shortest Path Bridging
IEEE 802.1Q
IEEE networking standard supporting VLANs
IEEE 802.2
IEEE standard
link layer
lowest abstraction layer in the Internet Protocol Suite
Link Access Procedure Balanced
thumb|200px|LAPB state Diagram
Link Access Procedure, Balanced (LAPB) implements the data link layer as defined in the X.25 protocol suite. LAPB is a bit-oriented protocol derived from HDLC that ensures that frames are error free and in the correct sequence. LAPB is specified in ITU-T Recommendation X.25 and ISO/IEC 7776. It implements the connection-mode data link service in the OSI Reference Model as defined by ITU-T Recommendation X.222.
Link Control Protocol
computer network protocol
Synchronous Data Link Control
computer communications protocol from IBM's Systems Network Architecture (SNA)
frame check sequence
error-detecting code in some data-link layer communications protocols
Link Layer Discovery Protocol
protocol used by network devices for advertising their identity
Subnetwork Access Protocol
computer network protocol
IEEE 802.1AE: IEEE Standard for Local and metropolitan area networks—Media Access Control (MAC) Security
IEEE standard
Distributed-queue dual-bus
LocalTalk
LocalTalk is a particular implementation of the physical layer of the AppleTalk networking system from Apple Computer.
Amateur X.25
AX.25 (Amateur X.25) is a data link layer protocol originally derived from layer 2 of the X.25 protocol suite and designed for use by amateur radio operators. It is used extensively on amateur packet radio networks.
Link Layer Topology Discovery
proprietary link layer protocol by Microsoft
Secure Neighbor Discovery Protocol
IPv6 network protocol extension
Port Aggregation Protocol
proprietary link aggegration protocol
Data link connection identifier
network protocol
Binary Synchronous Communications
late 1960s IBM mainframe communications protocol (was still in limited use even in 2010s)
G.hn
Gigabit Home Networking (G.hn) is a specification for wired home networking that supports speeds up to 2 Gbit/s and operates over four types of legacy wires: telephone wiring, coaxial cables, power lines and plastic optical fiber. Some benefits of a multi-wire standard are lower equipment development costs and lower deployment costs for service providers (by allowing customer self-install).