Ospf basics

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Version vom 14. Dezember 2017, 20:02 Uhr von Thomas (Diskussion | Beiträge) (→‎Adjacency state machine)

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Overview

OSPF is an interior gateway protocol

Structure

encapsulates its data directly in IP
protocol number 89.
multicast addresses 224.0.0.5
variety authentication methods

Router relationships

router identifies with Hello packet
link state protocol
neighbor relationships

Adjacency state machine

down
attempt
init
2-way
exstart
exchange
loading
full

Protocol messages

Hello
Database Description
Link State Request
Link State Update
Link State Acknowledgment

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