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It seems that Software Defined Networks (SDN) is the next big thing in the networking space because EVERY vendor is talking about it! Some have chosen to go down the proprietary route, and some like Juniper Networks with their Contrail solutions have a simple, open and much more agile approach.


At a basic level we know that SDN will give us a boost in network performance, it makes sense – layering the network such that the data layer is separate from the control layer is clearly a good thing. In addition it’s really important that this approach helps to simplify network design (clearly the benefit of SDN is eroded if it becomes much more complex) and easier to administer.


However, it’s how SDN enables the move to cloud computing that really interests me.


Crowds Harness the Opportunity at IP EXPO 2013

by nick.burrows ‎10-24-2013 06:56 AM - edited ‎11-06-2013 05:15 AM

If you came away from this year’s IP EXPO with nothing else, you couldn’t help the fact that networking is changing.


The combination of application proliferation, virtualisation, centralisation of (big) data and a plethora of other initiatives, have cemented the network at the centre of a technological whirlwind, rewarding the nimble with the visibility, control and elasticity required to deliver business agility, whilst punishing the sluggish with complexity, inefficiency and inflexibility - seldom a good combination in business for anything other than stagnation.


I enjoy events like IP EXPO, they serve as an excellent high-volume barometer about what is important to the guy responsible for trying to deliver that most critical of organisational assets:  the network.  As networking is changing, so too is the role of the various directors, managers, architects, consultants and engineers that come to the stand.  They have to deliver a platform that provides what their organisation needs to today and ensure it can scale to meet the challenges of tomorrow - all in the context of an exponentially changing technology landscape. 


I am pleased to announce the details of Juniper Networks’ upcoming Twitter Chat.  We will be hosting a Tweet Chat on Wednesday 2 October at 12 noon (BST) with Juniper Networks EMEA Product and Solutions Team. The theme of the chat will be Software Defined Networks (SDN), the benefits, the advantages, introducing Juniper’s offering Contrail and how you can implement SDN within your current network.


Anyone can participate, so please do join the chat on 2 October at 12 noon (BST). All it takes is to log into Twitter, follow the hashtag #JuniperSDN between 12 noon and 1pm (BST) and join in the conversation by adding a question for @PaulGainham, @dnouger, @NeilPound or @PaulaLender. Note that the chat will be hosted from @Juniper_UK, with various moderators. If you want to submit your SDN chat question before the event, then please @reply or direct message either @Juniper_UK or @ZoeSands.


I look forward to seeing you on Juniper Networks’ SDN tweet chat on Wednesday 2 October at 12 noon – follow #JuniperSDN.


SDN and why a CEO should be interested

by Juniper Employee ‎06-25-2013 08:07 AM - edited ‎06-25-2013 08:45 AM

What is SDN in laymans terms?


Software-defined networking (SDN) is an approach to networking in which life becomes more controlled by software and less hardware dependent.


In a conventional network, rules hardwired into the switch decide where to forward the data. The switch sends all data going to the same destination along the same path and treats all the data the exact same way. Some smart switches are sophisticated enough to recognise different types of data and treat it differently, but such switches can be quite expensive.


In a software-defined network (SDN), a business can shape traffic without having to touch individual switches. Business rules can be adapted real-time -- prioritising, de-prioritising or even blocking specific types of data with a very granular level of control. This is especially helpful in today’s data rich and dependent world because it allows the business to manage traffic loads in a flexible and more efficient manner.


Essentially this allows the business to use less expensive switches, but with much more control over network traffic flow than ever before. It moves networking from a device centric model to a centralised software controlled model.


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