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Network architecture

You will see the main concepts of network architecture, particularly around the mechanics of Software Define Network (SDN) design, in comparison with network functions virtualization (NFV).

SDN

13 Lessons - 400 min

SDN (Software-Defined-Networking)

01. Introduction to the course

An introduction to cybersecurity

The limitations of traditional architectures are becoming important. Today, modern networks do not optimize costs at all (i.e. CAPEX (Capital Expenditure) and OPEX (Operational Expenditure)).

The networks are not agile enough. Time to market is far too long, and procurement techniques are not fast enough. In addition, networks are not connected to services. Hence the emergence of a first technology called SDN (Software-defined Networking).

💡Thefollowing points should be considered in the new SDN paradigm:

  • Global needs analysis
  • Dynamic, rather than static, configuration and security policies
  • Much greater feedback than is currently the case
  • A precise knowledge of the customer and its applications, and, more generally, its requirements.

SDN technology originated in university campus networks at Stanford and Berkeley in 2007. HP and Stanford began collaborating that same year on Ethane, the predecessor to OpenFlow promoted by the Open Networking Foundation (ONF). Researchers experimenting with new protocols were tired of having to modify the software on network equipment every time they wanted to test a new experimental approach.

At the same time, Web companies that were dissatisfied with the slow pace of innovation in traditional networking began investing in SDN technology to get the scalability and control they needed in their very large-scale data centers.

SDN is a network architecture model that adds a level of abstraction to the functionality of network devices so that they can be managed globally. It allows applications to program the network to accelerate deployment. It also allows the network to better identify the applications that use its resources in order to better manage them, whether it be with regard to QoS, traffic engineering, security, etc.

The main idea of SDN is to take the intelligent part of the network interconnection equipment and place it on a single control point called a controller. This provides a central view of the network, which simplifies the management and configuration of the network. It is a priori, Martin Casado, co-founder of the company Nicira who is recognized as the father of SDN. VMware acquired, in 2012, the startup Nicira which sold a network virtualization platform NVP (Nicira Network Virtualization Platform) which now became the SDN controller NSX marketed by VMware.

02. SDN (Software-Defined-Networking)

45 minutes

An introduction to cybersecurity

03. Netword Function Virtualization (NFV)

45 minutes

An introduction to cybersecurity

04. OPNFV

35 min

An introduction to cybersecurity

05. Open vSwitch

30 min.

An introduction to cybersecurity

06. OF-CONFIG OpenFlow Configuration and Management Protocol

25 min

An introduction to cybersecurity

07. OVSDB Open vSwitch Database Management Protocol

20 minutes

An introduction to cybersecurity

08. OVN (Open Virtual Network(ing))

20 minutes

An introduction to cybersecurity

QUIZ. UFO

An introduction to cybersecurity

10. OpenFlow

35 min

An introduction to cybersecurity

11. Analysis of BGP evolutions for SND/NFV

30 min.

An introduction to cybersecurity

12. BGP variants for SND AD EVPN Marking QoS

35 min

An introduction to cybersecurity

13. Analysis of BGP evolutions for SND/NFV (Neighbor Discovery, BGP Labeled Unicast)

30 min.

An introduction to cybersecurity

14. BGP variants for SDN_Monitoring Protocol

40 minutes

An introduction to cybersecurity

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