I’m proud to be the owner of the best computer network design blog and get positive feedbacks from users all over the world. In recent times, I have observed that everybody has been reading this blog. Because of this, I owe all the readers of this blog my achievements. Indeed, your comments and post views have encouraged […]
The post orhanergun.net 2015 review appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
As the owner of the best computer network design blog, I am really proud of myself. I am now getting positive feedbacks from users all over the world. In recent times, I have observed that everybody has been reading this blog. Because of this, I owe all the readers of this blog my achievements. Indeed, your […]
The post orhanergun.net 2015 review appeared first on Network Design and Architecture.
EIGRP Hub and Spoke – EIGRP is the best protocol in Hub and Spoke topologies because of many reasons. In this article, I will explain the design consideration for EIGRP in a Hub and Spoke topology, also known as star topologies. Figure – 1 EIGRP Hub and Spoke In Figure – 1, EIGRP runs […]
The post EIGRP Hub and Spoke Design appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
EIGRP is the best protocol in Hub and Spoke topologies because of many reasons. In this article, I will explain the design consideration for EIGRP in a Hub and Spoke topology, also known as star topologies.
The post EIGRP Hub and Spoke Design appeared first on Network Design and Architecture.
Companies don’t always have high availability. What’s more, there is always a concern of budget and complexity with the high availability even though a number of factors need to be considered during network design. If the applications of the company do not require high availability, dual carrier or two links to the same carrier is not […]
The post Single Vs. Dual Carrier Design appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Companies don’t always have high availability. What’s more, there is always a concern of budget and complexity with the high availability even though a number of factors need to be considered during network design.
The post Single Vs. Dual Carrier Design appeared first on Network Design and Architecture.
If you design multi level IS-IS network and if you have more than one exit (L1-L2 routers) from the Level 1 domain, you will likely create a suboptimal routing. Multi-level IS-IS design is for large-scale network. What’s more, most of the real life networks use only flat Level 2 IS-IS as their interior gateway protocol (IGP).
The post IS-IS Suboptimal Routing Design appeared first on Network Design and Architecture.
In this post I’ll show how to setup environment for UnetLab REST SDK development on Windows. I’ll be running UNL inside a VM and using PyCharm as Python IDE on the host OS.
Continue reading
It’s the first day of 2016 and it’s time for me to look at what I wanted to do and what I plan to accomplish in the coming 366 days. We’ve got a busy year ahead with a leap day, the Olympics, and a US presidential election. And somewhere in the middle of all that there’s a lot of exciting things related to tech.
Looking back at my 2015 goals, I think I did a fairly good job:
Hey, Happy New Year, it's HighScalability time:
Please join us in congratulating the following iPexpert students who have passed their CCIE lab!
Cisco, VMware, and Juniper saw their share of drama this year.
Cisco, VMware, and Juniper saw their share of drama this year.
A departure at Wind River tops this holiday-break edition of the Roundup.
To kick off the new year, I will give you a review of the CCDE Practical Workbook by Orhan Ergun, CCIE #26567 and CCDE #2014:17.
Orhan is a friend and has provided the workbook to me for reviewing. I would like to make it clear that being a friend or providing a product for free does not give any leverage when I review a product. I always give my honest opinion when reviewing a product.
Orhan is a CCDE trainer running the website orhanergun.net and he writes and blogs a lot about network design. He has written a practical workbook to aid CCDE candidates in their studies for the CCDE practical.
As with any workbook for any exam, your expectations must be realistic before purchasing a product. You can only get as much out of a workbook as the effort you put into your studying. A workbook is not a complete solution that will be your only source of studying. You must do additional reading, and lots of it.
The CCDE practical workbook is divided into sections such as layer two, layer three, MPLS, BGP, multicast and so on. Each section starts with some introduction to each technology and Continue reading
Happy New Year! As is my tradition, here are the 2015 blog statistics as compared to 2014.
I’m pretty excited that once again readership and overall reach of this blog has increased by double digits. I’m looking forward to growing these numbers and creating challenging and interesting new content in 2016.
Here are the overall statistics comparing Jan 1 – Dec 30 2015 (first number) to Jan 1 – Dec 30 2014 (second number):
The number of sessions and number of unique users clipped the 100,000 mark for the first time. Session duration fell off, but I think that is a funny metric. I’ve not bothered to investigate how Google Analytics measures that nor do I understand conceptually how it’s even possible to measure how long someone stays on a web page, so I’ve never put much stock in that metric.
New vs returning visitors are basically unchanged from last year:
The top five browsers hitting the site is precisely the same as last year:
What’s interesting here is that out of the ~138,000 sessions that hit the site in 2015, Chrome was the only browser that was used for a bigger Continue reading
More than a media buzzword, Linux containers made some real progress in 2015.
Accelerating progress indicates we've reached a tipping point.
