2017 CCDE Exam Dates
2017 CCDE Exam dates has been announced.There are four CCDE exam every year. More precisely there are four CCDE Practical/Lab exam every year. There is no limitation for the CCDE Written exam. You can join CCDE Written exam anytime in any Pearson Vue Center. It is not only 4 times in a year. CCDE Practical […]
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Is Cisco CCDE exam harder than CCIE ?
Is Cisco CCDE exam harder than CCIE exam ? This is one of the most commonly asked questions by the CCDE candidates. Short answer is no. But, you should know the differences between the CCIE vs. CCDE as well. CCDE exam is scenario based. You have four scenarios which is called as Lab or practical […]
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Orhan Ergun Youtube Channel
Orhan Ergun Youtube Channel I have been sharing technology based videos on my youtube channel for some time. I will hopefuly share more often public videos out there ! I just don’t want to share technical videos, but my training updates, bootcamp announcements, success stories and the things which make me happy or mad ! […]
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Is Cisco CCDE Exam Vendor Neutral ?
Is Cisco CCDE Exam really vendor neutral?.Recently one of my CCDE Bootcamp students asked me this question. He heard that DMVPN might come in the exam. In the beginning of my each CCDE class, I introduce the topics which will most likely asked in the CCDE Practical exam. Cisco claims that CCDE Practical exam is […]
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40% discount for the NEW YEAR on all CCDE Products !
40% New Year Discount On all CCDE Products Starts December 16 Thru 31 of December 2016 40% 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 » Note : Discount is valid for both Online Instructor Led […]
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Don’t miss this opportunity
*|MC:SUBJECT|* Black Friday & Cyber Monday Black Friday Thru Cyber Monday Special Discount Starts November 24 at 5PM PST Thru November 28 9PM PST 30% 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 »
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These 7 people passed the CCDE Practical exam with my training
I am glad to announce that 7 of the attendees passed the CCDE Practical Lab exam in November 17, 2016 after attending my CCDE Training Program and got their CCDE numbers. Chintan Sutaria – CCDE 2016::26 Mazin Ahsan – CCDE 2016::30 Tahir Munir – CCDE 2016::31 Michael Zsiga – CCDE 2016::32 Felix Nkansah -CCCDE 2016::36 Andre Dufour – CCDE […]
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CCDE In-Depth: The New CCDE Book of Orhan Ergun Is Available
Finally, I have published my new CCDE book titled CCDE In-Depth. The much-awaited book is available in three version: PDF, Kindle and Paperback versions. You can purchase the PDF version directly from this website. And if you need the Kindle and Paperback version, it is available on Amazon. Why This Book Is the Best for CCDE […]
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Last Three days for the 10 days Online CCDE Practical Bootcamp
Last three days for the November 10 days Online CCDE Bootcamp ! By November 1, I am going to start my NEW CCDE Practical Lab Training. There are couple things to highlight. Online Bootcamp is Instructor-Led Bootcamp. I will be in the class and explain everything you need to pass the CCDE Practical exam. Instructor Led doesn’t […]
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Benefits of MPLS – Why MPLS is used ? – MPLS Advantages
Benefits of MPLS, Why MPLS is used on today networks and the Advantages of MPLS will be explained in this post. As an Encapsulation and VPN mechanism, MPLS brings many benefits to the IP networks. In this article most of them will be explained and design examples will be shared by referring more detailed articles on the website as […]
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BGP in MPLS Layer 3 VPN – BGP as a PE-CE Routing Protocol
BGP can be used as a PE-CE routing protocol in MPLS Layer 3 VPN. Also Service Providers run MP-BGP (Multiprotocol BGP) if they have MPLS Layer 3 VPN. In this article, MP-BGP will not be explained since it has been explained here earlier in detail. When BGP is used as a PE-CE routing protocol between […]
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OSPF to IS-IS Migration
There are many reasons of OSPF to IS-IS migration, specifically for the Service Provider networks. Some of these reasons are shared later in the case study. OSPF to IS-IS migration can be done in three ways. In this article I will share, ‘ ship in the night approach ‘ which relies on having both routing […]
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Design considerations for network mergers and acquisitions
Network mergers and acquisitions are the processes which can be seen in any type of businesses. As a network designers, our job to identify the business requirements of both existing networks and the merged network and finding best possible technical solutions for the business. There are many different areas which need to be analyzed carefully. Wrong business requirement […]
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OSPF Multi-Area Adjacency | OSPF Area Placement | RFC 5185
OSPFv2 by default setup only one adjacency over a single link. But this can be an issue some time and as a network designer you should understand the consequences and know the available solutions. Placing a link in wrong OSPF area can create an OSPF sub optimal routing especially in hub and spoke topology. In […]
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IS-IS Design considerations on MPLS backbone
IS-IS Design considerations on MPLS backbone Using IS-IS with MPLS require some important design considerations. IS-IS as a scalable link state routing protocol has been used in the Service Provider networks for decades. In fact, eight of the largest nine Service Providers use IS-IS routing protocol on their network as of today. If LDP is […]
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Carrier Ethernet – Definition | Service Types | Requirements
CARRIER ETHERNET DEFINITION Carrier Ethernet is an attempt to expand Ethernet beyond the borders of Local Area Network (LAN), into the Wide Area Networks (WAN). With Carrier Ethernet, customer sites are connected through the Wide Area Network. Carriers have connected the customers with ATM (Asynchronous Transfer Mode) and Frame Relay interfaces in the past. (User to Network Interface/UNI). […]
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IPv6 Transition Mechanisms | Dual-Stack -Tunnelling – Translation
IPv6 Transition Mechanisms The only available public IP addresses are IPv6 addresses. But vast majority of the content is still working on IPv4. How IPv6 users can connect to the IPv4 world and How IPv4 users can reach to the IPv6 content ? This is accomplished with the IPv6 transition mechanisms. In this post, I […]
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BGP Peering – Private, Public, Bilateral and Multilateral Peering
BGP Peering BGP Peering is an agreement between different Service Providers. It is an EBGP neighborship between different Service Providers to send BGP traffic between them without paying upstream Service Provider. To understand BGP peering, first we must understand how networks are connected to each other on the Internet. The Internet is a collection […]
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What is reliability in networking ?
What is reliability in networking ? Why reliability is an important design tool ? I will provide the answers of these questions with the examples in this post. Reliability is within the reasonable amount of time, which depends on the application type and architecture, delivering the legitimate packets from source to destination. This time is […]
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Spanning Tree Best Practices
Spanning Tree Protocol (STP) is a control plane mechanism for Ethernet. It is used to create a Layer 2 topology (a tree) by placing the root switch on top of the tree. Since classical Ethernet works based on data plane learning and Ethernet frames don’t have TTL for loop prevention, loops are prevented by the […]
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