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What does P router mean in MPLS ?

What does P router mean in MPLS ? It is used in MPLS VPN networks mostly but can be used with any MPLS application, use case.

 

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Wireless ISPs Spectrum Problem

Wireless ISPs also known as WISP mostly use unlicensed frequency spectrum. Frequency spectrum is the most critical asset for the Mobile and Wireless networks and it is sold in auctions for 100s of millions of dollars.

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Istanbul/Turkey Onsite CCDE Training – 50% OFF until Sep-15, 2017

Istanbul/Turkey Onsite CCDE Training will be held between October 30 – November 4.

 

Course will be in English as usual, everyday will be between 9am – 6pm, 9 hours.

 

I am going to extend my CCDE Materials for this course as there was new scenarios and the technologies after August 29, 2017 CCDE Practical/Lab exam.

 

When you register for this course, you will have Self Paced CCDE Training and Self Paced Service Provider Training for free.

 

Also attendees will have two of my books; CCDE In-Depth and Service Provider Networks.

 

You probably heard my free retake offering. When you register for Istanbul Onsite training, you will be able to attend other Online CCDE Trainings such as October 16 – 25 Webex, for free.

 

Please know that, four days after this training, there is a CCDE Practical/Lab exam and you can attend the exam in Istanbul. Let me help you to pass !

 

Just for Istanbul/Turkey CCDE Training, until September 15, 50% discount is valid. Please don’t ask for a discount after September 15, 2017.

 

For more information :  sales@orhanergun.net

 

Course agenda and registration please click here

 

Orhan Ergun’s CCDE Training is the most recommended CCDE Training in the World. You can talk with the existing CCDEs for the feedback. 

 

 

Orhan Ergun No Comments

What is Attachment Circuit in MPLS VPN ?

What is attachment circuit in MPLS VPN ? Definitions are important in networking, if there are alternative usages of the definition, better to know them all for effective communication.

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BGP Route Reflector in Plain English

BGP Route Reflector in Plain English, in this post, I will explain you the BGP Route Reflector basics, after you read this post, you will be able to answer many questions regarding BGP Route Reflectors.

 

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IPv6 Business Drivers and PI/PA Address Space

IPv6 Business drivers can be many and different businesses have different reasons to deploy IPv6 on their network.

 

IPv6 is more commonly deployed in the Service Providers than Enterprises or Small Medium Businesses. Do you know why ?

 

Main reason is IPv4 address space exhaustion. There is no available public IPv4 addresses in the RIR (Regional Internet Registries). Thus, when Service Providers want to allocate an IPv4 address to their customers, one of their options is to deploy IPv6.

 

There are many other reasons to deploy IPv6 in both Service Providers and the Enterprises and I explained many IPv6 business drivers in the below video, along with Provider Independent and the Provider Address Blocks.

 

Also, understanding Provider Independent (PI) and Provider Assigned (PA) address blocks is important because there are some design tradeoffs.

 

I explained these two topics, IPv6 Business Drivers and the PI/PA Address Blocks on my youtube channel in the below video.

 

 

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Network Interconnections Video by Orhan Ergun

Network Interconnections is one of the most important topics for the operator network as it directly related with the cost of the sending traffic out from their networks.

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BGP Route Reflector routing loop problem !

BGP Route reflector routing loop arise in IP networks. In this post, I will illustrate the topology which will loop the IP packets between the routers and I will describe multiple possible solution and share a best practice to design BGP Route Reflector in an IP network. Read more

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IS-IS Case Study – Ausnet

This is a case study which provides a detailed design steps for IGP protocol on hypothetical Internet Service Provider, called Ausnet.

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Orhan Ergun 2 Comments

Is Inter-AS MPLS VPNs commonly deployed ?

Is Inter-AS MPLS VPNs commonly deployed ? In real-life deployment which Inter-AS MPLS VPN Option is most common ? What are the use cases of Inter-AS MPLS VPNs ? This is not a theory post , I will share practical information with you. Read more