Overview
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ABSTRACT
Although IP networks were first designed for best effort traffic, they soon had to support more value added services. This was done by adding new technology bricks to the base IP specification. However, IP networks have still been provisioned and operated by humans, despite the increasing complexity of the technologies involved, the services deployed, and the need for rapid service delivery. Flexibility, agility and speed are key customer requirements. This means making the network more programmable by creating interfaces between applications and the network. These interfaces and the associated architectures can take many forms. This network programming concept is not restricted to IP technology: it can be applied to other types of network.
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Stéphane Litkowski: IP/MPLS network architect and expert - Orange Business Services, International Networks Division, Cesson Sévigné, France
INTRODUCTION
In the SDN article – part 1
In this article, we'll be taking a closer look at other SDN use cases and their implementations, and presenting some of the technologies currently in vogue. In particular, this article will cover transport optimization in IP/MPLS network cores, the link between SDN and network functions virtualization (NFV), and an overview of current solutions on the market.
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KEYWORDS
programming | networks | SDN | SD-WAN | NFV | traffic engineering
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Bibliography
Also in our database
Standards and norms
- Encapsulating MPLS in IP or GRE - RFC4023 -
- BGP/MPLS IP Virtual Private Networks - RFC4364 -
- A Path Computation Element (PCE)-Based Architecture - RFC4655 -
- NETCONF Event Notifications - RFC5277 -
- Path Computation Element Communication Protocol - RFC5440 -
- Dissemination of Flow Specification Rules - RFC5575 -
- YANG – a data modeling language for NETCONF - RFC6020...
Websites
OpenDaylight http://www.opendaylight.org/
OpenContrail http://www.opencontrail.org/
Openconfig...
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