Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Open Shortest Path First

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).

Works, Concepts & Notable implementations

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Open Shortest Path First. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Introduction
1989; 37 years ago (1989)
Purpose
Routing protocol

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Concepts

Router relationships

OSPF areas

Router types

Non-point-to-point network

Protocol messages

OSPF v3

OSPF over MPLS VPN

OSPF extensions

Notable implementations

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Open Shortest Path First

Nodes110
Edges109
Triples11
Avg. degree1.98
Density0.018182
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Open Shortest Path First

Top relations

related to Multicast Open Shortest Path First · 4
Open Shortest Path First → MOSPF, OSPF, Path First, The Multicast Open Shortest
Introduction · 1
Open Shortest Path First → 1989; 37 years ago (1989)
Purpose · 1
Open Shortest Path First → Routing protocol
RFCs · 1
Open Shortest Path First → .mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:r…

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

ospf routing routers router area protocol network ip link dr packets networks bdr state information hello lsa areas ipv6 multicast

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Open Shortest Path FirstIntroduction1989; 37 years ago (1989)1.00infobox
Open Shortest Path FirstPurposeRouting protocol1.00infobox
Open Shortest Path FirstRFCs.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:r…1.00infobox
UDP or TCPinstance ofbut does not use a transport protocol0.80text
Frame Relay or ATMinstance ofnetworks0.80text
speedinstance ofwhich was defined by the standard not to equate to any standard value0.80text
so the network designer could pick a metric important to the designinstance ofwhich was defined by the standard not to equate to any standard value0.80text
Open Shortest Path Firstrelated to Multicast Open Shortest Path FirstThe Multicast Open Shortest0.60section
Open Shortest Path Firstrelated to Multicast Open Shortest Path FirstPath First0.60section
Open Shortest Path Firstrelated to Multicast Open Shortest Path FirstMOSPF0.60section
Open Shortest Path Firstrelated to Multicast Open Shortest Path FirstOSPF0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.