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OSPF Mastery From Basics to Advanced by Arash Deljoo
Rating: 4.7 out of 5(99 ratings)
1,021 students

OSPF Mastery From Basics to Advanced by Arash Deljoo

OSPFv2 and OSPFv3 Concepts, Configuration (IOS,IOS-XR,NX-OS, ASA), Troubleshooting, and Design
Created byArash Deljoo
Last updated 11/2025
English

What you'll learn

  • Understand OSPFv2 fundamentals, including router roles, areas, metrics, neighbor formation, and the OSPF state machine.
  • Configure and verify OSPFv2 across single-area and multi-area topologies using Cisco IOS, NX-OS, IOS-XR, and ASA firewalls.
  • Master all OSPF LSA types and understand how they are generated, propagated, and used in route calculations.
  • Analyze and interpret the OSPF link-state database (LSDB) to understand network topology and routing decisions.
  • Implement OSPF authentication, static neighbors, priority settings, and DR/BDR elections to optimize and secure OSPF operations.
  • Apply OSPF route selection logic, including intra-area, inter-area, external routes, default routes, and next-hop processing.
  • Design advanced OSPF networks, including special area types (Stub, Totally-Stubby, NSSA), summarization, filtering, and virtual links.
  • Troubleshoot OSPF neighbor adjacency and routing issues using systematic methods, debugs, and OSPF diagnostic tools.
  • Deploy OSPFv3 (IPv6) with proper understanding of its LSA structure changes, instance IDs, authentication, and multi-AF configuration.
  • Implement OSPF across multiple Cisco platforms, including IOS-XR, NX-OS, and ASA, understanding platform-specific behaviors and configuration syntax.

Course content

9 sections61 lectures36h 23m total length
  • OSPF Basics and Key Router Roles1:12:22

    1- Open Shortest Path First [OSPF] Introduction

    2- Open Shortest Path First [OSPF] Fundamentals

    3- OSPF Internal Router Introduction

    4- OSPF Area Border Router (ABR) Introduction

    5- OSPF Backbone Router Introduction

    6- OSPF Autonomous System Boundary Router (ASBR) Introduction

    7- OSPF Considerations Introduction

    8- OSPF Area Fundamentals

    9- OSPF Area's Advantages Introduction

    10- Link State (LS) Algorithm Introduction

  • OSPF Basics and Key Router Roles Quiz
  • OSPF Configuration and Verification Essentials1:20:16

    1- OSPF Traditional (Network Command) Introduction

    2- OSPF Traditional (Network Command) Configuration

    3- OSPF Traditional (Network Command) Verification

    4- OSPF Interface Specific (Explicit Command) Introduction

    5- OSPF Interface Specific (Explicit Command) Configuration

    6- OSPF Interface Specific (Explicit Command) Verification

    7- OSPF Router-ID Introduction

    8- OSPF Router-ID Configuration

    9- OSPF Router-ID Verification

    10- OSPF Passive-Interface Introduction

    11- OSPF Passive-Interface Configuration

    12- OSPF Passive-Interface Verification

    13- OSPF Cost Introduction


  • OSPF Configuration and Verification Essentials Quiz
  • OSPF Basics and Single Area Configuration53:03

    1- OSPF Introduction

    2- Link State Overview

    3- OSPF Tables

    4- OSPF configuration - Single Area - Traditional Configuration

    5- OSPF verification introduction

  • OSPF Basics and Single Area Configuration Quiz
  • OSPF Router ID , Neighborship and Cost Fundamentals34:22

    1- OSPF Router-ID concept

    2- OSPF Router-ID configuration

    3- OSPF verification commands

    4- OSPF neighborship table review

    5- OSPF Link State Database review

    6- OSPF Cost calculation for every interface

    7- OSPF Metric calculation

  • OSPF Router ID , Neighborship and Cost Fundamentals Quiz
  • OSPF Traditional and Explicit Configuration Essentials16:36

    1- OSPF Traditional Configuration review

    2- OSPF Explicit    Configuration

    3- OSPF Explicit    Configuration verification

  • OSPF Traditional and Explicit Configuration Essentials Quiz
  • OSPF Priority and DR BDR Selection Essentials44:48

    1- Point-to-Point OSPF neighborship review

    2- Multi Access Network OSPF neighborship issue

    3- Designated Router [DR] and Backup Designated Router [BDR] introduction

    4- OSPF Priority Concept and Configuration

    5- DR and BDR Selection Rules

    6- DR and BDR Configuration and verification

  • OSPF Priority and DR BDR Selection Essentials Quiz
  • OSPF Static Neighborship Essentials27:09

    1- The need to OSPF Static Neighborship

    2- OSPF Static Neighborship Configuration

    3- OSPF Static Neighborship Verification

    4- Compare Dynamic and Static OSPF Neighborship

  • OSPF Static Neighborship Essentials Quiz
  • OSPF Neighborship and Authentication Essentials1:10:20

    1- OSPF Neighborship Introduction

    2- OSPF Multicast Address Introduction

    3- OSPF Hello Packet Introduction

    4- OSPF Neighborship Requirement Introduction

    5- OSPF Neighborship Router-ID Requirement

    6- OSPF Neighborship Subnet Number Requirement

    7- OSPF Neighborship MTU Requirement

    8- OSPF Neighborship Area-ID Requirement

    9- OSPF Hello Timer Introduction

    10- OSPF Dead Timer Introduction

    11- OSPF Hello Timer Configuration

    12- OSPF Dead Timer Configuration

    13- OSPF Neighborship Hello Timer Requirement

    14- OSPF Neighborship Dead Timer Requirement

    15- OSPF Authentication Types Introduction

    16- OSPF Plain Text Authentication Configuration

    17- OSPF Message Digest Authentication Configuration

  • OSPF Neighborship and Authentication Essentials Quiz
  • OSPF Neighborship Conditions and Troubleshooting54:50

    1- Dynamic neighborship review

    2- OSPF Neighborship Conditions

    3- OSPF Hello and Dead Interval Concept and Configuration

    4- Debugging in OSPF

  • OSPF Neighborship Conditions and Troubleshooting Quiz
  • OSPF FSM States and Packet Exchange Essentials1:00:57

    1- OSPF Finite State Machine [FSM] Introduction

    2- OSPF States Introduction

    3- OSPF Down State Introduction

    4- OSPF Init State Introduction

    5- OSPF 2-Way State Introduction

    6- OSPF Exstart State Introduction

    7- OSPF Exchange State Introduction

    8- OSPF Loading State Introduction

    9- OSPF Full State Introduction

    10- OSPF Attempt State Introduction

    11- OSPF Static Neighborship Introduction

    12- OSPF Static Neighborship Configuration

    13- OSPF Static Neighborship Verification

    14- OSPF Database Description [DBD] Introduction

    15- OSPF Link State Request [LSR] Introduction

    16- OSPF Link State Update [LSU] Introduction

    17- OSPF Link State Acknowledgement [LSAck] Introduction

  • OSPF FSM States and Packet Exchange Essentials Quiz
  • OSPF Neighborship States and Packet Exchange Essentials57:12

    1- Dynamic neighborship review

    2- OSPF Neighborship States

    3- OSPF Link State Exchange States

    4- OSPF Packet Types

    5- OSPF Debugging for Link State Exchange

  • OSPF Neighborship States and Packet Exchange Essentials Quiz
  • OSPF DR BDR and Priority Fundamentals44:23

    1- OSPF Designated Router [DR] Introduction

    2- OSPF Backup Designated Router [BDR] Introduction

    3- OSPF DRother Introduction

    4- OSPF Priority Introduction

    5- OSPF DR/BDR Selection Rules Introduction

    6- OSPF DR/BDR Configuration

    7- OSPF DR/BDR Verification

  • OSPF DR BDR and Priority Fundamentals Quiz

Requirements

  • You need to have only routing fundamentals knowledge . You can implement all scenarios in GNS3 and EVE-NG.
  • Familiarity with the command-line interface (CLI) on Cisco devices is helpful but not mandatory—everything is explained step-by-step.
  • No prior OSPF experience is required. The course starts from the absolute basics and gradually progresses to expert-level topics.
  • A computer with internet access to watch lectures and follow along with configuration labs.
  • Optional but recommended: Access to a network lab environment such as: Cisco Packet Tracer GNS3 EVE-NG CML (Cisco Modeling Labs)
  • Optional: Basic understanding of IPv6 for the OSPFv3 section .

Description

Open Shortest Path First (OSPF) is one of the most widely used and essential routing protocols in enterprise and service provider networks. Whether you're a network engineer, aspiring CCNP/CCIE candidate, or IT professional looking to enhance your expertise, mastering OSPF is crucial for advancing your career.

What This Course Covers:

In this comprehensive course, you’ll gain a deep understanding of both OSPFv2 (for IPv4) and OSPFv3 (for IPv6). You’ll learn how to configure and troubleshoot OSPF across multiple Cisco platforms, including IOS-XR, NX-OS, and ASA, ensuring you have the hands-on skills to work with OSPF in real-world environments.

Key Topics Include:

OSPF Fundamentals: Learn how OSPF works, including neighbor relationships, LSAs, and the SPF algorithm
Configuration on Cisco Devices: Implement OSPF on IOS, NX-OS, and ASA with step-by-step guidance
Advanced OSPF Concepts: Understand areas, virtual links, authentication, and redistribution
Troubleshooting OSPF: Learn practical troubleshooting techniques to diagnose and resolve common OSPF issues
OSPF Network Design: Best practices for designing scalable, high-performance OSPF networks

Why This Course is Important for Your Career:

Job Readiness: OSPF is a core networking skill required for many IT roles, including network engineering, security, and automation
Certification Preparation: Ideal for those pursuing CCNP, CCIE, and Cisco networking certifications
Real-World Hands-On Training: Learn practical configurations and troubleshooting techniques used by industry professionals

If you want to stand out in the competitive networking job market, mastering OSPF is a must. This course will give you the confidence, knowledge, and skills needed to work with OSPF like an expert.

Who this course is for:

  • Network Engineers and Administrators
  • CCNA, CCNP, and CCIE Students
  • IT Professionals Transitioning into Networking
  • Data Center and Enterprise Engineers
  • Security Engineers and Firewall Administrators
  • Service Provider Network Engineers
  • Students and Learners Building a Networking Career