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Why Node Africa Chose NSX

Node Africa is the perfect partner to bring cloud computing to the country - not just any cloud, but one that addresses unique challenges. Our approach is not about public, private or hybrid clouds, or even "the cloud" itself. It is about bespoke cloud infrastructure: each enterprise's unique journey to deploy a cloud model that is appropriate to its business needs regardless of the provider.    

Why Node Africa Chose NSX Posted on June 7, 2016 20  

A network can be defined as a channel, media and set of rules that allow two computers to exchange data. The connection between the computers is established over wired or wireless media.

With traditional networking, the data and control plane are housed in physical devices called routers. These devices act like gatekeepers and make the routing decisions regarding what to do with inbound and outbound packets. They also follow industry specific standards but have some custom proprietary technology which make users prefer one vendor’s hardware over another’s.

Software Defined Networking (SDN) differs from traditional networking by decoupling the data plane from the control plane. The data plane makes decisions on what to do with packets that arrive on the inbound interface while the control plane makes decisions on what to do with packets inside the network, i.e. a routing table with destination addresses and the packets outgoing interface.

The change from traditional networking to SDN can be attributed to changes in today’s computing world where applications are no longer designed for one application per server. Most applications today are likely to have geographically located replicated databases and parallel processing across a number of servers for redundancy and performance reasons. This greatly changes the traffic pattern, necessitating a change in how the network traffic is routed.

SDN subsequently helps network administrators manage network services through an abstraction layer. NSX is VMware’s iteration of SDN. NSX helps customers realize the SDDC (the Software Defined Datacenter, being pioneered by VMware) which involves virtualizing all data centre resources – hardware, software, networking – to create IT as a service (ITaaS).

One way to conceptualize this is through the human anatomy whose most important part is the brain. The brain controls the flow of information and the activities of different body organs. The cloud is, in retrospect, similar to a living organism with the network as the brain. While medical scientists still have not figured out how to successfully transplant a brain from one living organism to another, VMware scientists have; not the human head, of-course, but the brain that controls the cloud. The intelligence of the cloud follows the application.

NSX is the name of the VMware brain. It is a network virtualization platform that allows you to move your network’s intelligence from physical infrastructure to a software platform allowing you to achive total ITaaS.

What makes NSX special is that it: (i) reduces the amount of human and physical capital needed to build a cloud network, (ii) reduces the amount of work needed to run and maintain the network, (iii) reduces points of failure, and (iv) opens up possibilities to integrate with products from other vendors through its API.

All this might look good on paper but the best way to demonstrate this is through an example: Node Africa has built its cloud offering on VMware and has explicitly built its network on NSX, achieving total ITaaS. When we first started, we were only serving a handful of customers but the situation changed rapidly. This resulted in a need for immediate upgrades on the existing infrastructure to enable the company to continue adequately serving existing and new customers. Normally this would have involved days of planning and preparation. HoweverFeature Articles, the current ITaaS setup allowed the Node Africa team to upgrade both network and hardware during peak hours and with no downtime. Better yet it was all done in a single day.

NSX allowed the Node Africa team the ability to surgically divorce the network from the infrastructure without taking down the running services in real-time.

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ABOUT THE AUTHOR


I am a skilled and professional writer interested in IT, Cloud Computing, Disaster recovery and other related computer technology aspects. Get to know more nodeafrica.com



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