I am very proud to announce that Daniel Lardeux, Johnny Britt and Mohammad Haddad passed the CCDE Practical exam yesterday and they joined the CCDE Club, which is one of [..]
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If you’re studying for the CCIE Data center v.10 exam, it’ll be available until July 2016, after which time the recently announced CCIE DC v2.0 exam will take its place. [..]
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Who said IT Engineers are not funny ! Whenever I see below pictures I laugh Which one is your favorite ? Share yours in the comment section below. 1-) [CONTINUE READING]
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Last week I sent a below questions and asked the optimal place for an OSPF ABR ( Area Border Router ). There was huge participation. Thanks for everyone who shared [CONTINUE READING]
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Would you like to be a member of Computer Networking Forum which has many senior level network designer hanging out. It would be nice , right ? I have received [CONTINUE READING]
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In the below picture, where should you place an OSPF ABR (Area Border Router) to scale OSPF design ? Why ? Please share your thoughts in the comment box below. First 5 correct answers will get my CCDE Preparation Workbook for free. Please subscribe to email list so I can see your email address for communication.
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Whatever you design , it should be usable first. Computer network design is not an exception.You are not designing a network to support one service only such as VPN or Internet.It should provide enough functionality for today and future needs. Your design should be usable today and the future ! It was so common to use… Read More »
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Today is my son’s birthday. So I decided to give 60% discount on my CCDE preparation resources bundle for the first 20 people which will be first come first serve basis and this offer stands good till end of 23th of October. This is the ultimate resource for those who study Cisco Certified Design Expert certification. Earlier… Read More »
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Network Design should be simple.Simplicity is the first of the network design best practices which I want you to remember. If you are in the field for enough time, you probably heard the KISS principle. If you are a good follower of my blog , you maybe heard SUCK principle as well. KISS stands for… Read More »
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CCDE Practical Self Study Materials are available now ! This material is newly created by Orhan Ergun and will help with preparation on your certification journey. The material is applicable for the CCDE Practical but would also be of use for candidates pursuing their CCDE Written and / or CCIE exams. Advanced Technologies Workbook Design… Read More »
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Due to the high level of demand for the July Online CCDE bootcamp and the increase of individuals pursuing the CCDE, I have just added my next online class for the November 19th CCDE Practical exam. The class will not only include an overview of the technology concepts needed to pass the exam but also… Read More »
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Bad Network Design – Availability of a system is mainly measured with two parameters. Mean time between failure (MTBF) and Mean time to repair (MTTR) MTBF is calculated as average time between failures of a system. MTTR is the average time required to repair a failed component (Link, node, device in networking terms) Operator mistakes […]
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Designers should be trained to understand the real problems. An excellent solution to the wrong problem is worse than no solution. As a designer, you shouldn’t start by trying to solve the problem given to you. You shouldn’t try to find a best design for the given problem.You should try to understand the real issues.… Read More »
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Quality of service (QoS) is the overall performance of a telephony or computer network, particularly the performance seen by the users of the network. Above is the Quality of Service definition from the Wikipedia. Performance metrics can be bandwidth, delay, jitter, pocket loss and so on. Two Quality Of Service approaches have been defined by… Read More »
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I am glad to announce that Russ White and I have been preparing a CCDE Practical Exam ( Lab Exam ) Scenario. This is the most realistic scenario available anywhere.Because it is not just prepared by a CCDE but one of the founder of the exam involved. Disclosure : This is not asked in the CCDE… Read More »
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LDP is the most commonly used label distribution protocol in today MPLS networks. Although it lacks of Traffic Engineering, Admission Control, Fast Reroute capabilities, it scales very well because of its Multi Point to Point Label Switched Path.BGP can also assign a label for the IP and also for the VPN prefixes and in this article I… Read More »
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Software Defined Networking is real,everyone talks about SDN, network engineers worry about their jobs and ask below questions. Hundreds if not thousands of articles, a lot of books have been written on SDN. SDN is not a new idea or concept and we see this ping pong game many times but this time it is marketed very… Read More »
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There are 20 relatively easy MPLS questions in the below MPLS QUIZ. It should take around 30 to 45 minutes and above 50 is nice score in my opinion. Although this post is related with MPLS, you can click here for the other tests. Please specify your name and email address to receive an email for… Read More »
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I have been delivering CCDE practical training for quite some time. Couple months ago I have started a survey for my CCDE training. 134 people voted and here is the results. From the votes as I understand, many people have been looking for a demo, sample videos from my CCDE practical training class. Below is the half an hour CCDE Practical demo video from my CCDE training.… Read More »
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Ethan Banks and I have been managing Google CCDE Study Group for more than 2 years. Ethan who is the packetpushers.net founder and friend of mine created this study group to discuss Cisco Certified Design Expert related topics and real life network design with the experts. Google Study Group has full of CCDE related topics… Read More »
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