Category Archives: Network Architecture Evolution

Network Architecture evolution

Some toughts on SDN/NFV, SDNv2

I went on a networking conference that was not really for networking but for “networking”. One of the speakers stated that we have to share something after the lecture. Well I am dealing with ip & telecom networking for more … Continue reading

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OpenStack training in Bulgaria

OpenStack is the most fast progressing Cloud technology stack at the moment. It has 10 releases for 5 years and at the moment it is defacto the standard in Infrastructure as a Service cloud technology. Currently OpenStack has more than … Continue reading

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Posted in CLOUD, Network Architecture Evolution, OPENSTACK, SDN | Tagged , , | Leave a comment

Курсове към програма Мрежово инженерство, деп. Телекомуникации на НБУ

Въведение Представям кратък обзор на курсовете, които съм предложил към програма мрежово инженерство на деп.  Телекомуникации.  Програмата ще започне от следващата учебна година (2014/2015). Основната ѝ цел е да даде добри изходните перспективи за намиране на работа в България на завършилите … Continue reading

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Posted in IPv4 to IPv6 network transformation, MPLS Core Networks, Network Architecture Evolution, NGN Backbone Networks | Tagged , , , , , | 12 Comments

An approach and a tool for IP network state-to-state transformation

Abstract— The article presents an approach and a tool for network state-to-state transformation. Each network has a state. The state could be formalized into an architectural graph data model that contains network nodes, edges and key metadata. The state-to-state transformation … Continue reading

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Posted in IPv4 to IPv6 network transformation, Network Architecture Evolution, OSS/BSS | Tagged , , | Leave a comment

What will be the SDN impact on OSS?

Currently on top of the network each and every medium large organization has a whole stack of OSS systems covering different sections of the E-TOM model. We got network planners, commercial and technical order management systems, service and resource inventories,  … Continue reading

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Posted in Network Architecture Evolution, OSS/BSS | Leave a comment

Introduction to Cloud Computing – Agenda and Poster

Agenda Basic terms and characteristics of cloud computing. Visualization Infrastructure as a Service (IaaS) Platform as a Service (PaaS) Software as a service (SaaS) Public, private and hybrid clouds Cloud applications development Programming models, architectures and frameworks Basic cloud services … Continue reading

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Posted in Architectures for Software Systems, Network Architecture Evolution | Tagged , , | Leave a comment

Segment routing what the hell is this?

Introduction In the last couple of years the awareness that the network somehow become too complex is rising more and more. Somehow the “stupid network” described by David Isenberg’s [1] become complex again… So it is time to turn the … Continue reading

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Posted in MPLS Core Networks, Network Architecture Evolution, NGN Backbone Networks | Tagged , , | 3 Comments

Clean state vs Evolutionary research?

Obviously the current IP networks and the Internet as an ecosystem integrating many other IP networks are far away from perfection. Obviously comes the question shall we try to redesign it avoiding all the mistakes that were done and start … Continue reading

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Posted in IPv4 to IPv6 network transformation, Network Architecture Evolution | Leave a comment

David Isenberg – “The Rise of the Stupid Network”

Let’s remember for David Isenberg. Many years ago he wrote “The rise of the stupid network” explaining why when we have dump terminals the network shall be smart e.g “intelligent” and why when we have “clever” terminals like PCs, smartphones … Continue reading

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Paul Baran – the Godfather

A piece of history… Remember the Guy. If Paul has not developed the concept of distributed packet switching network well most of us would still deal with the old PSTN switches. Baran’s concepts were applied in ARPA network which become … Continue reading

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Posted in Network Architecture Evolution, Remeber the Guy | Tagged , , | 1 Comment