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Open Shortest Path First (OSPF) is a routing protocol for Internet Protocol (IP) networks. It uses a link state routing (LSR) algorithm and falls into the group of interior gateway protocols (IGPs), operating within a single autonomous system (AS).
This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.
An interior gateway protocol (IGP) or interior routing protocol is a type of routing protocol used for exchanging routing table information between gateways (commonly routers) within an autonomous system (for example, a system of corporate local area networks). [1] This routing information can then be used to route network-layer protocols like IP.
The link-state advertisement (LSA) is a basic communication means of the OSPF routing protocol for the Internet Protocol (IP). It communicates the router's local routing topology to all other local routers in the same OSPF area.
Includes a 'sequence number', which increases every time the source node makes up a new version of the message. This message is sent to all the nodes on a network. As a necessary precursor, each node in the network remembers, for every one of its neighbors, the sequence number of the last link-state message which it received from that node ...
Open Shortest Path First (OSPF) is encapsulated in IP, but runs only on the IPv4 subnet, while the IPv6 version runs on the link using only link-local addressing. IGRP, and EIGRP are directly encapsulated in IP. EIGRP uses its own reliable transmission mechanism, while IGRP assumed an unreliable transport.
In Open Shortest Path First (OSPF), flooding is used for transferring updates to the topology . In low data rate communications, flooding can achieve fast and robust data communications in dedicated protocols such as VEmesh, [ 3 ] which operates in the Sub-1 GHz frequency band and Bluetooth mesh networking , which operates in the 2.4 GHz ...
Stub networks are also capable of implementing multi-homing technology. This technology is focused on setting a single computer to host multiple network connections and IP addresses. Stub networks are useful in situations where the OSPF (Open Shortest Path First) protocol needs to map out the topology of the network. Stub networks serve a ...