OSPF

6/15/99


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Table of Contents

OSPF

Types of Routing Protocols

IGP

Routing

Exercise One - The Magic of Dynamic Routing

Static or Dynamic routing

Why Dynamic Routing?

Convergence - Why do I care?

PPT Slide

Distance-Vector Routing Algorithms

Distance-Vector Algorithms

RIP

RIP

Why not RIP?

Link State vs. Distance Vector

Link State vs. Distance Vector

OSPF

Link State Algorithm

How it works

How it works (con)

How it works (con)

How it works (con)

How it works (con)

Hello

The Hello Packet

Neighbors

Who is adjacent?

Adjacencies

Broadcast Neighbor

Broadcast Medium

Designated Router

Neighboring States

Neighboring States

LSAs Propagate Along Adjacencies

SPF calculation

General cisco Concepts:

OSPF Commands

OSPF commands

Exercise 2 - configuring OSPF

Exercise 2 (verifying your work)

OSPF exercise - network layout

Scaling OSPF

OSPF area (before)

OSPF area (after)

Scaling OSPF

Scaling OSPF

Redistribution

Author: Abha Ahuja

Email: ahuja@merit.edu