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orhanergun
Bridging,Provider Bridging,Provider Backbone and Shortest Path Bridging
I received an interesting comment to my last post on networkcomputing It was about Avaya’s SPB and how it served in the core of the network at the Sochi Olympics. For those who are not familiar with acronym, SPB stands for Shortest Path Bridging and it is used for large scale bridging in the data… Read More »
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50 000 Page views of orhanergun.net between March-May 2015
This blog received 50 000 page views between 1 of March and 1 th of May.I shared you couple more metrics from the site stats in addition to Pageviews. Since at the same time two classes I teach ( Pre-CCDE and CCDE ) in addition to my other jobs, I couldn’t update the blog since… Read More »
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Basic Networking Questions – 3
There are 8 basic networking questions below. Although this post is related with networking basics, you can click here to solve advanced networking tests. If you are interested in more basic networking questions, you should click here How was it ? Leave your comment in the comment box.
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What is the real reason behind IP and MPLS Traffic Engineering ?
MPLS traffic engineering has many use cases and it helps to solve the problems in an MPLS enabled networks. These use cases are in general; QoS guarantee, End to End SLA , Fast reroute, Admission control and so on. All of them at the end is done for the COST SAVING. The real reason behind MPLS Traffic… Read More »
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VPN Design discussion
In this post, I will give you a business requirements and information about the business of a fictitious company,together we will try to find an optimal solution for the given questions. There will be many valid solution as you will see from the comments, we will have to make tradeoffs between each design goals while… Read More »
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April CCDE Training class is going to start tomorrow
I am glad and excited to announce that my April 2015 online CCDE class will start tomorrow ( 07/04/2015) with 10 great guys. As I promised to them I limited to class to 10 , so everybody can ask as much as questions, join the discussions and share their comments. I will share their success… Read More »
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What does really MPLS layer 2 VPN mean ?
Couple days before I received an email from one of my readers related with his design. He designed a network infrastructure for his customer and wanted me to take a look as well. But I realized that He has some misunderstanding on the usage of MPLS layer 2 VPNs and I thought just briefly mentioning… Read More »
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Networking Test – 3
In this networking test you will have 6 questions. MPLS, BGP, Routing convergence, MPLS Traffic Engineering are just some of the concepts in the test. Please provide your username and email for the Leaderboard. If you can be in leaderboard, I will use those information later to give special prizes such as discount in my… Read More »
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VRF-Lite+GRE/dot1q or MPLS L3 VPN
I am going to create a new category on the blog which we will discuss together the different technologies,protocols, designs and architecture. You can suggest a discussion topics and you all please welcome to join the discussions in the comment box of each topic. I want to throw a first topic for the discussions !… Read More »
The post VRF-Lite+GRE/dot1q or MPLS L3 VPN appeared first on Network Design and Architecture.
Network Complexity
Network complexity plays a very important role during network design. Every network designer tries to find the simplest design. Although there is no standard definition for the network complexity yet, there are many subjective definitions. In today network designs decisions are taken based on an estimation of network complexity rather than absolute, solid answer. If… Read More »
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2016 CCDE Practical Exam Dates
Cisco announced 2016 CCDE Practical exam dates. CCDE practical exam is organised only in every 3 months. Prerequisite for the exam is CCDE Written Qualification exam. You can attend the exam 4 times a year in a Professional Pearson Centers. I am planning to start my CCDE trainings 2 months before an announced exam date… Read More »
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Introduction to Network Design, Pre-CCDE Training
I am going to start an ONLINE Pre-CCDE preparation course in Mid of April I realized that many people is not ready to start study CCDE study and they don’t know what they study before attend a CCDE Training or Bootcamps. Course will cover network design principles,theory of the; IGP, BGP, MPLS, VPNs, Qos, Multicast and… Read More »
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Networking Quiz -2
In this networking quiz you have 5 questions. It is not a basic, also not too hard.It should take less than 10 minutes for an experienced engineers. If you want to learn the basics of NETWORK DESIGN, check my latest PRE-CCDE Training. You can enjoy with more quizzes by clicking here. How was it ?… Read More »
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Networking Basics – Test2
There are 12 networking questions below. Most of them relatively basic networking questions. Although this post is related with networking basics, click here to solve advanced networking tests. If you liked this test, you will like this too. How was it ? Leave your comment in the comment box.
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Campus Network Design Scenario
In this post I will give you a campus network design scenario and as always will wait your answers. You need to specify what are the mistakes, you need to recommend a technical solutions to Superent which is a fictitious company and don’t forget to give your answers based on customer requirements rather than industry… Read More »
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Networking Quiz
I prepared 14 networking questions for you. There are design and theory based questions. Some questions have only one answer, some of them have multiple. Each correct option is 4 points. This is general networking quiz which includes many different questions. Check other Networking quizzes from here. How was your score ? Did you… Read More »
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Networking Basics – Test 1
There are 10 basic questions below. Most of them relatively basic networking questions. This test can be taken only one time, so take your time, provide your Name and Email so you can be in Leaderboard. If you like this networking basics test,please leave a comment, so I continue to prepare similar tests. After solving this test… Read More »
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What is your opinion about the new blog design ?
As you might notice I changed the blog design, and I want your feedback about the new design from all the points (speed, simplicity, look and feel,etc…). Your suggestion and feedback is highly appreciated to enhance the blog. Did you like it ? Was the old design better ? Based on the comments we will… Read More »
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OSPF Design Test
I shared three OSPF questions below,similar to BGP Design Test published earlier. These are design related, please take your time before giving your answer. In return,I want you to share these test on social media so more people can benefit from it. If you have a problem,confusion with the answers which I provided, let’s discuss… Read More »
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CCIE vs CCDE
Probably one of the mostly asked questions by the networking experts. CCIE vs CCDE. How many times you asked yourself or discussed with someone else about this ? I think many times. right ? I have CCIE Routing Switching and/or Service Provider, should I continue to Design certificates such as CCDE or should I study… Read More »
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