Orhan Ergun 2 Comments


EIGRP vs OSPF  – Below comparison table is your primary resource for the OSPF and EIGRP routing protocols when you compare them from the design point of view.

Knowing and understanding these design practices will not only help you for the real life network design but also will help for the any design certification exams.

If you have any question regarding the parameters in the comparison chart, please share in the comment so I can provide more information.

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Orhan Ergun 4 Comments

Routing design

Understanding everything about routing design is no brainer, especially if you have the chart below on your wall.

The table below highlights the pros and cons of each routing protocol. Of course, you need to consider the design attributes shown in Figure A before embarking on routing design.

Should you like the comparison of the routing protocols illustrated in the table below or should you want to see similar comparison for other technologies, feel free to add your comment in the comment section.

Another boon for all my readers!

If you are interested in network design or considering CCDE, CCDP, or CCDA certification, you can subscribe for membership here so that you can peruse all the design resources (Videos , Tests , Case Studies , and E-Books).

Figure A: Comparison of Routing Protocols

Orhan Ergun 9 Comments

IS-IS Routing Protocol FAQ

IS-IS is a link state routing protocol. Commonly used in Service Provider networks.

Back in old days, IS-IS routing protocol software was more stable and robust compare to OSPF,  thus many service provider choose IS-IS as their interior routing protocol.

I collected the questions which I received from my students and readers related with IS-IS routing protocol and my answers in this post. Read more

Orhan Ergun 31 Comments

OSPF protocol

OSPF Protocol – OSPF, Open shortest path first is a dynamic routing protocol which creates a topology between the routers to distribute routing information inside an Autonomous system.

If you are not familiar with OSPF, don’t worry ! In this article OSPF will be explained in great detail.

Are you interested in design aspect of OSPF, many OSPF design examples will be covered in the article.

Maybe OSPF network engineering interview question is what you are looking for. Read more