Author Archives: Orhan Ergun
Author Archives: Orhan Ergun
In the first article of the series, reliability and resiliency are covered. We should know that whatever device, link type or software you choose eventually they will fail. Thus designing resilient system is one of the most critical aspects of IT. I mentioned that one way of providing resiliency is redundancy. If we have redundant […]
The post Network Design Concepts Part-3 appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
No country for old men !!. This week in the Orhan Show, Anthony Sequeira and Orhan Ergun are talking about spanning tree , its drawbacks, spanning tree modes, technologies which can eliminate the spanning tree’s drawbacks or completely do not use it. Orhan recommends all audience to read this blog post about spanning tree which […]
The post Community Show – Killing the Spanning Tree with Anthony Sequeira and Orhan Ergun appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
[player] No country for old men !!. This week in the Orhan Show, Anthony Sequeira and Orhan Ergun are talking about spanning tree , its drawbacks, spanning tree modes, technologies which can eliminate the spanning tree’s drawbacks or completely do not use it. Orhan recommends all audience to read this blog post about spanning tree […]
The post Community Show – Killing the Spanning Tree with SPB,TRILL,Fabricpath from Anthony Sequeira and Orhan Ergun appeared first on Packet Pushers.
In the first article of this series, reliability and resiliency has been explained. Every component and every device can and eventually will fail, thus system should be resilient enough to re converge/recover to a previous state. Resiliency can be achieved with redundancy. But how much redundancy is best for the resiliency is another consideration to […]
The post Common Network Design Concepts Part-2 appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
‘ On Earth Day at 1990 , New York City’s Transportation Commissioner decided to close 42d Street , which as every New Yorker knows is always congested. “Many predicted it would be doomsday,” said the Commissioner, Lucius J. Riccio. “You didn’t need to be a rocket scientist or have a sophisticated computer queuing model to […]
The post Designing Networks for Selfish Users is Hard appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
In this first part of CCNA Datacenter sessions , Anthony Sequeira and Orhan Ergun are talking about the topics in the blueprint. They identify all the technologies which you should know for the CCNA Datacenter exam. Topics include : DCICN exam which is the first exam. DCICT exam which is the second exam. Datacenter Fundamentals, […]
The post Community Show – CCNA Data Center Part1 with Anthony Sequeira and Orhan Ergun appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
[player] In this first part of CCNA Datacenter sessions , Anthony Sequeira and Orhan Ergun are talking about the topics in the blueprint. They identify all the technologies which you should know for the CCNA Datacenter exam. Topics include : DCICN exam which is the first exam. DCICT exam which is the second exam. Datacenter […]
The post Community Show – CCNA Data Center Part1 with Anthony Sequeira and Orhan Ergun appeared first on Packet Pushers.
There are design tools which we should consider for every design. LAN, WAN and the data center where these common design tolls and attributes should be considered. Many of the principles in this article series might be fit not only for the network part of the design but also compute, virtualization and storage technologies also […]
The post Common Network Design Concepts Part-1 appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
In this first part of the Multicast Design and Deployment Series , Orhan Ergun talks with Mr.Multicast Beau Williamson about many multicast concepts. They both start from the basic and deep dive many multicast concepts while giving real life examples. Why Multicast?. What are the general use cases in real life ? Layer 2 […]
The post Community Show – Multicast Design and Deployment Considerations with Beau Williamson and Orhan Ergun appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
In this first part of the Multicast Design and Deployment Series, Orhan Ergun talks with Mr. Multicast Beau Williamson about many multicast concepts. They both start from the basic and deep dive many multicast concepts while giving real life examples.
The post Community Show – Multicast Design and Deployment Considerations with Beau Williamson and Orhan Ergun appeared first on Packet Pushers.
To be honest I really tried hard to find a name for this article. Maybe it is not convenient and if you have better idea please let me know in the comment. I want to mention sub optimality and stretch in the networks while using routing protocols but the idea actually came to me from […]
The post Visibility, Trustship,Sub optimality or whatever you want to call it. appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Couple days ago I made an interesting talk about Video Traffic over Internet. Sales engineer goes to company and he claims that Video traffic can be carried over Internet without any problem. This is of course wrong and to understand why I have to explain some technical concepts. Main take away from this article is […]
The post Video over Internet appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Cisco Certified Design Expert exam is the popular expert level vendor independent certification. In my first podcast I talked with my three guests who have CCDE as well , about preparation, resources, recommendations and many other topics. We also discussed whether CCIE is losing its value. Please share your comments about this podcast. Participants […]
The post Community Show – CCDE Preparation and Recommendations appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
[player] Cisco Certified Design Expert exam is the popular expert level vendor independent certification. In this podcast Orhan Ergun – CCIE & CCDE talks with his three guests who have CCDE certificate as well , about preparation, resources, recommendations and many other topics. We also discussed whether CCIE is losing its value. Please share […]
The post Community Show – CCDE Preparation and Recommendations appeared first on Packet Pushers.
HSRP is the first hop redundancy Cisco property protocol which allows a transparent failover of the first-hop gateway. Many technologies have been slightly modified to use it efficiently. In this article although Anycast hsrp will be explained but first I want to first explain how basically HSRP works. HSRP has Version 1 and 2. […]
The post Anycast HSRP and Design Considerations appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
After I get an interesting if it is not weird question about switch selection from someone couple days ago I decided to share my ideas about this specific and actually important topic. Question was exactly like this; ‘ Which one I should buy 24 port or 48 port switch ‘. What would you give […]
The post Give me one 24 port switch please ! appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Through a court-mandated decision, access to Twitter has officially been blocked across all of Turkey. Weather or not this was the right decision; it is evident that people are not happy about it at all. As you already may know, I am originally from Turkey but have been living elsewhere for many years now while […]
The post Twitter War ! appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
In the first article of this series I mentioned from Inter AS VPN Option A only. This article will be about Option B , C and Carrier Supporting Carrier VPNs. I assume from the readers basic knowledge of these VPNs.Only design points will be highlighted here since my intended audiences are the network designers and […]
The post INTER-AS VPNs and Carrier Supporting Carrier (CSC) Part-2 appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Once I decided for the CCDE exam I was thinking it is a hard challenge but surprisingly I will say it is not as much as you think.This is good news and you started to smile ? Hope once you finished the article you continue to it Yes it is not since I […]
The post Orhan Ergun CCDE Story appeared first on Packet Pushers Podcast and was written by Orhan Ergun.