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Network layer, the Glossary

Index Network layer

In the seven-layer OSI model of computer networking, the network layer is layer 3.[1]

Table of Contents

  1. 34 relations: Computer network, Connectionless communication, Connectionless-mode Network Service, Data link layer, Datagram Delivery Protocol, Enhanced Interior Gateway Routing Protocol, Exterior Gateway Protocol, Host (network), Internet Control Message Protocol, Internet Group Management Protocol, Internet layer, Internet Protocol, Internet protocol suite, Internetwork Packet Exchange, IP address, IP fragmentation, IPsec, IPv4, IPv6, Link layer, Maximum transmission unit, Network packet, Open Shortest Path First, OSI model, Packet forwarding, Packet loss, Path MTU Discovery, Prentice Hall, Protocol Independent Multicast, Router (computing), Routing, Routing Information Protocol, Transport layer, Upper Saddle River, New Jersey.

  2. OSI model

Computer network

A computer network is a set of computers sharing resources located on or provided by network nodes.

See Network layer and Computer network

Connectionless communication

Connectionless communication, often referred to as CL-mode communication,Information Processing Systems - Open Systems Interconnection, "Transport Service Definition - Addendum 1: Connectionless-mode Transmission", International Organization for Standardization, International Standard 8072/AD 6, December 1986.

See Network layer and Connectionless communication

Connectionless-mode Network Service

Connectionless-mode Network Service (CLNS) or simply Connectionless Network Service is an OSI network layer datagram service that does not require a circuit to be established before data is transmitted, and routes messages to their destinations independently of any other messages.

See Network layer and Connectionless-mode Network Service

The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. Network layer and data link layer are OSI model.

See Network layer and Data link layer

Datagram Delivery Protocol

Datagram Delivery Protocol (DDP) is a member of the AppleTalk networking protocol suite.

See Network layer and Datagram Delivery Protocol

Enhanced Interior Gateway Routing Protocol

Enhanced Interior Gateway Routing Protocol (EIGRP) is an advanced distance-vector routing protocol that is used on a computer network for automating routing decisions and configuration.

See Network layer and Enhanced Interior Gateway Routing Protocol

Exterior Gateway Protocol

The Exterior Gateway Protocol (EGP) was a routing protocol used to connect different autonomous systems on the Internet from the mid-1980s until the mid-1990s, when it was replaced by Border Gateway Protocol (BGP).

See Network layer and Exterior Gateway Protocol

Host (network)

A network host is a computer or other device connected to a computer network.

See Network layer and Host (network)

Internet Control Message Protocol

The Internet Control Message Protocol (ICMP) is a supporting protocol in the Internet protocol suite.

See Network layer and Internet Control Message Protocol

Internet Group Management Protocol

The Internet Group Management Protocol (IGMP) is a communications protocol used by hosts and adjacent routers on IPv4 networks to establish multicast group memberships.

See Network layer and Internet Group Management Protocol

Internet layer

The internet layer is a group of internetworking methods, protocols, and specifications in the Internet protocol suite that are used to transport network packets from the originating host across network boundaries; if necessary, to the destination host specified by an IP address.

See Network layer and Internet layer

Internet Protocol

The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries.

See Network layer and Internet Protocol

Internet protocol suite

The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the set of communication protocols used in the Internet and similar computer networks according to functional criteria.

See Network layer and Internet protocol suite

Internetwork Packet Exchange

Internetwork Packet Exchange (IPX) is the network-layer protocol in the IPX/SPX protocol suite.

See Network layer and Internetwork Packet Exchange

IP address

An Internet Protocol address (IP address) is a numerical label such as that is assigned to a device connected to a computer network that uses the Internet Protocol for communication.

See Network layer and IP address

IP fragmentation

An example of the fragmentation of a protocol data unit in a given layer into smaller fragments. IP fragmentation is an Internet Protocol (IP) process that breaks packets into smaller pieces (fragments), so that the resulting pieces can pass through a link with a smaller maximum transmission unit (MTU) than the original packet size.

See Network layer and IP fragmentation

IPsec

In computing, Internet Protocol Security (IPsec) is a secure network protocol suite that authenticates and encrypts packets of data to provide secure encrypted communication between two computers over an Internet Protocol network.

See Network layer and IPsec

IPv4

Internet Protocol version 4 (IPv4) is the first version of the Internet Protocol (IP) as a standalone specification.

See Network layer and IPv4

IPv6

Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communications protocol that provides an identification and location system for computers on networks and routes traffic across the Internet.

See Network layer and IPv6

In computer networking, the link layer is the lowest layer in the Internet protocol suite, the networking architecture of the Internet.

See Network layer and Link layer

Maximum transmission unit

In computer networking, the maximum transmission unit (MTU) is the size of the largest protocol data unit (PDU) that can be communicated in a single network layer transaction.

See Network layer and Maximum transmission unit

Network packet

In telecommunications and computer networking, a network packet is a formatted unit of data carried by a packet-switched network.

See Network layer and Network packet

Open Shortest Path First

Open Shortest Path First (OSPF) is a routing protocol for Internet Protocol (IP) networks.

See Network layer and Open Shortest Path First

OSI model

The Open Systems Interconnection (OSI) model is a reference model from the International Organization for Standardization (ISO) that "provides a common basis for the coordination of standards development for the purpose of systems interconnection." In the OSI reference model, the communications between systems are split into seven different abstraction layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

See Network layer and OSI model

Packet forwarding

Packet forwarding is the relaying of packets from one network segment to another by nodes in a computer network.

See Network layer and Packet forwarding

Packet loss

Packet loss occurs when one or more packets of data travelling across a computer network fail to reach their destination.

See Network layer and Packet loss

Path MTU Discovery

Path MTU Discovery (PMTUD) is a standardized technique in computer networking for determining the maximum transmission unit (MTU) size on the network path between two Internet Protocol (IP) hosts, usually with the goal of avoiding IP fragmentation.

See Network layer and Path MTU Discovery

Prentice Hall

Prentice Hall was a major American educational publisher.

See Network layer and Prentice Hall

Protocol Independent Multicast

Example of a multicast network architecture Protocol-Independent Multicast (PIM) is a family of multicast routing protocols for Internet Protocol (IP) networks that provide one-to-many and many-to-many distribution of data over a LAN, WAN or the Internet.

See Network layer and Protocol Independent Multicast

Router (computing)

A router is a computer and networking device that forwards data packets between computer networks, including internetworks such as the global Internet.

See Network layer and Router (computing)

Routing

Routing is the process of selecting a path for traffic in a network or between or across multiple networks.

See Network layer and Routing

Routing Information Protocol

The Routing Information Protocol (RIP) is one of the oldest distance-vector routing protocols which employs the hop count as a routing metric.

See Network layer and Routing Information Protocol

Transport layer

In computer networking, the transport layer is a conceptual division of methods in the layered architecture of protocols in the network stack in the Internet protocol suite and the OSI model. Network layer and transport layer are OSI model.

See Network layer and Transport layer

Upper Saddle River, New Jersey

Upper Saddle River is a borough in Bergen County, in the U.S. state of New Jersey.

See Network layer and Upper Saddle River, New Jersey

See also

OSI model

References

[1] https://en.wikipedia.org/wiki/Network_layer

Also known as Internetwork layer, Layer 3, Layer-3, Network layers, Network-layer, Network-layer protocol, OSI Layer 3.