May 2017 Dubai CCDE Bootcamp Attendees Feedbacks !
Dubai 5 days Instructor Led Bootcamp just finished. Attendees were from Spain, Bahrain , Saudi Arabia, India and Abu Dhabi. I discussed several real network designs with attendees such as one of the bank networks, one financial institute, couple service provider networks (Belong to these students or they involve designs of these networks) […]
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April Online CCDE Class is going to start today
I am excited as today, 2017 CCDE April Online (Webex) class is going to start. Actually , there is only half an hour and we will start. Every day will be 4 hours and minimum 11 days it will take. We will go through the theory , best practices and the case studies for many […]
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Mac Flooding Attack , Port Security and Deployment Considerations
This article is the 4th in Layer 2 security series. We will be discussing a very common layer 2 attack which is MAC flooding and its TMtigation “Port Security MAC limiting” If you didn’t read the previous 3 articles; DHCP snooping, Dynamic ARP Inspection, and IP Source Guard; I recommend that you take a quick […]
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MPLS Quiz
MPLS (Multi Protocol Label Switching) quiz ! Learn while assessing your knowledge. This quiz is part of the MPLS Review Questions of my new version of CCDE Workbook. There are more than two hundred questions in it and you can have it from the website directly (PDF version) or from Amazon (Hardcopy). This quiz helps for many certification exams […]
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What is happy eyeballs ?
What is happy eyeballs ? This term is very important to understand if you are deploying dual stack IPv6 network. Before defining happy eyeballs, do you know what is an eyeball network ? Where is it used ? Where does ‘ happy eyeballs ‘ term come from ? Eyeball is an end […]
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Broadband Network Architecture – Access Network Models
There are many broadband services Service Providers offer to their customers today. As a network engineer you need to know the most common services and their advantages, disadvantages, design characteristics and so on. In this post, I will introduce these services and if I can see interest from the readers, I will explain the […]
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May 1 – 5, 2017 Dubai CCDE Bootcamp
Next Onsite Instructor Led CCDE Bootcamp will be held on Dubai. Class will be 5 days, May 1 to 5, 2017. Everyday we will have 8 hours. It is going to be very intense. I am going to cover all CCDE Blueprint topics, many scenarios, all you need to pass CCDE Practical […]
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What is Free Retake? I offer Free CCDE Bootcamp Retake
Many people have been asking about Free Retake. I provide Free Retake for my Instructor Led CCDE Training. But what is it ? Why it is important ? Who benefit from it ? Is there a limit for free retake ? When you register to my Instructor Led bootcamp, which […]
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CCDE Real Labs/Scenarios
I think it is time to write otherwise people will loose their money for nothing. Today I got a whatsapp message from someone who says ‘ I can’t join your Onsite CCDE training, is there a way to buy REAL scenarios Online ‘. I didn’t understand initially. I thought someone is asking whether I […]
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Is MPLS mandatory for Traffic Engineering?
Is MPLS mandatory for Traffic Engineering? What is Traffic Engineering in the first place ? Wikipedia defines traffic engineering as below. ” Internet traffic engineering is defined as that aspect of Internet network engineering dealing with the issue of performance evaluation and performance optimization of operational IP networks.” So we are managing the performance with […]
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What is VPWS , VLL , EoMPLS
What is VPWS , VLL , EoMPLS ? Actually all are the same thing. VPWS stands for virtual private wire service , VLL stands for virtual leased line and EoMPLS stands for Ethernet over MPLS. All are MPLS Layer 2 VPN service and terms are used to define point to point layer 2 circuit. In […]
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ARP, ARP Inspection, ARP Types and Deployment Considerations
Layer 2 security – ARP and ARP Inspection Introduction This article is the second of our layer 2 attacks identification and mitigation techniques series, which will be a part of a bigger series discussing Security Infrastructure. Dynamic ARP Inspection relies on DHCP snooping technology explained in the previous article. It’s strongly recommended to […]
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33% discount until 1st of April 2017 on all CCDE Products !
33% Discount – Limited seats ! On all CCDE Products It is only valid until 1st of April 2017 33% OFF On Below Products ! CCDE In-Depth New CCDE Workbook buy now » Live/Instructor-Led Online CCDE Training buy now » Self Paced CCDE Training Lifetime Access buy now » Discount is valid for both Online […]
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Layer 2 security – DHCP Details, DHCP Snooping
Layer 2 security – DHCP Details, DHCP Snooping Introduction This article is the first of a series explaining layer 2 attacks identification and mitigation techniques, which will be a part of a bigger series discussing Security Infrastructure. We will be discussing the most common attacks and how to mitigate them; but more important, […]
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Fast Convergence and the Fast Reroute – Definitions/Design Considerations in IP and MPLS
Fast Convergence and the Fast Reroute Network reliability is an important design aspect for deployability of time and loss sensitive applications. When a link, node or SRLG failure occurs in a routed network, there is inevitably a period of disruption to the delivery of traffic until the network reconverges on the new topology. Fast reaction is essential […]
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OSPF Best Practices
OSPF Best Practices Understanding and using best practices is very important though may not be feasible in all networks due to budget , political or other technical constraints. In this post I will explain the best practices on OSPF networks. This best practices come from my real life design and deployment experience , knowledge […]
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Turkiyede CCDE Egitimi
Bu Turkce paylastigim ilk post olacak. Heyecanliyim. Ama daha cok , Turkiyede ve Turkce CCDE Egitimi verecek olmaktan dolayi heyecanliyim. Takipcilerim bilirlerki 2 yildan fazla bir suredir Cisco CCDE Egitimi vermekteyim ve egitimlerime Dunyanin her yerinden 100 lerce kisi katilmistir. Cogunlukla Online/Live olmakla birlikte, Amerikada, Dubai de , Afrika da , Qatar ve Avrupada Onsite […]
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MPLS Layer 3 VPN Deployment
MPLS Layer 3 VPN Deployment In this post I will explain MPLS Layer 3 VPN deployment by providing a case study. This deployment mainly will be for green field environment where you deploy network nodes and protocols from scratch. This post doesn’t cover migration from Legacy transport mechanisms such as ATM and Frame Relay migration as […]
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