Orhan Ergun
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Orhan Ergun
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 […]
The post CCDE Real Labs/Scenarios appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
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 […]
The post Is MPLS mandatory for Traffic Engineering? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
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 […]
The post What is VPWS , VLL , EoMPLS appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
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 […]
The post 33% discount until 1st of April 2017 on all CCDE Products ! appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
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 […]
The post Fast Convergence and the Fast Reroute – Definitions/Design Considerations in IP and MPLS appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
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 […]
The post OSPF Best Practices appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
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 […]
The post Turkiyede CCDE Egitimi appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
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 […]
The post MPLS Layer 3 VPN Deployment appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
MPLS Transport Profile (MPLS-TP) Basic Explanation and Key Points
MPLS Transport Profile (MPLS-TP) Multi-Protocol Label Switching Transport Profile (MPLS-TP) is a new technology developed jointly by the ITU-T and the IETF. The key motivation is to add OAM functionality to MPLS in order to monitor each packet and thus enable MPLS-TP to operate as a transport network protocol. Motivations for MPLS Transport Profile […]
The post MPLS Transport Profile (MPLS-TP) Basic Explanation and Key Points appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Quality of Service Best Practices
Quality of Service Best Practices What is best practice ? Below is a Wikipedia definition of best practice. This apply to education as well. A best practice is a method or technique that has been generally accepted as superior to any alternatives because it produces results that are superior to those achieved by other […]
The post Quality of Service Best Practices appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Interdatacenter broadcast control – ARP Proxy in OTV and EVPN
When it comes to multi domain or Inter datacenter communication, minimizing the broadcast traffic between the datacenters is an important scaling requirement. Especially if you are dealing with millions of end hosts, localizing the broadcast traffic is critical to save resources on the network and the end hosts. Resources are bandwidth , CPU , memory […]
The post Interdatacenter broadcast control – ARP Proxy in OTV and EVPN appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Feb 2017 -5 people passed the CCDE Practical exam with my courses
I am glad to announce that below 5 attendees passed the CCDE Practical Lab exam in February 22, 2017 after attending my CCDE Training Program and/or Self Paced CCDE Training got their CCDE numbers. Kim Pedersen Pramod Nair Avinash Gupta Laurent Metzger Concepcion Diaz Cantarero Read the below feedbacks from the people who passed the CCDE […]
The post Feb 2017 -5 people passed the CCDE Practical exam with my courses appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
10 Most Popular articles of 2016 on orhanergun.net and statistics
Below is the Google Analytics page views for the articles between January 1st 2016 and January 1st 2017. I didn’t include Home page , CCDE Course and the CCDE E-book pages but just the technical articles. If you haven’t looked at some of those yet, I recommend definitely read them now. BGP Route Reflector […]
The post 10 Most Popular articles of 2016 on orhanergun.net and statistics appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Free Webinar – DMZ Anywhere.Let’s talk about DMZ security design options
This is a free webinar but requires registration and seats are limited thus please register immediately. Webinar on Tuesday, February 28, 2017 7:00 PM – 8:30 PM AST. REGISTER Agenda Introduction to Security Zones What’s DMZ? Why do we need DMZ? Physical vs Logical Network Segmentation Emerging Technologies (Virtualization, Micro Segmentation) Benefits of DMZ Anywhere […]
The post Free Webinar – DMZ Anywhere.Let’s talk about DMZ security design options appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
February 2017 CCDE Training is over ! Waiting the attendees success now !
My February 2017 CCDE class is now over. The duration of the course was for 11 days and as usual it started with lots of advanced technology lessons. All the critical CCDE exam topics (IGP, BGP , MPLS and the other technologies) were covered in detail from the design point of view. A minimum of […]
The post February 2017 CCDE Training is over ! Waiting the attendees success now ! appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Nothing Should Stop You!
As many of you know, I was born in Turkey. And unfortunately, the educational system of that country is very weak. And guess what: If you can’t afford to go to private school in Turkey, you may not be able to learn English in the government school. However, if you are a very diligent student, […]
The post Nothing Should Stop You! appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
This made me smile :)
Have a great day and hope it makes you smile as well ?
The post This made me smile :) appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
MPLS over IP Encapsulations and Comparison between MPLS over LSP
Do you need an LSP for MPLS ? In this post, I will go through below topics. This is one of the points which network engineers struggle to understand as I have seen. What is an LSP (Label Switched Path) ? What was the purpose of having LSP in the first place? Do we need […]
The post MPLS over IP Encapsulations and Comparison between MPLS over LSP appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Should I use Cisco OTV for the Datacenter Interconnect ?
Should I use Cisco OTV for the Datacenter Interconnect? This question comes from not only from my students but also the companies which I provide consultancy. I will not go through the OTV details, how it works, design recommendations etc. But let me remind you what is OTV and why OTV is used , Where […]
The post Should I use Cisco OTV for the Datacenter Interconnect ? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.