Once upon a time, there lived a network magician named Comnetix in the kingdom of Reticulo, but he was sad and desperate. His king wanted him to earn more gold coins with communication services, although increasing capacity requirements and stagnating revenue had killed profitability many years ago. And Comnetix had no idea how to prevent being thrown into the dungeon.
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I was reminiscing with the wife the other evening about my technology journey and, Sarah and I were both amazed at how technology has progressed so fast in such a relatively short period. So, this got me thinking: I conjectured that if, whilst at school, someone had told me that I would be using a small tablet device as thin as a rich tea biscuit to work on, to research on, to communicate with others across the globe and to play super-realistic graphic-intensive games, I would have deemed them completely insane and their notion to have been nothing more than science fiction. Today the fantasy has become a reality and the device in question? Well, naturally I’m referring to my Apple iPad Air 2 and its ever increasing capabilities.
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Media and broadcast companies are preparing for the introduction of ultra-high resolution video signals in their contribution networks. This is not such an easy task as the transport of native HD signals is very demanding on bandwidth. While HD-SDI (High-Definition Serial Digital Interface) and 3G-SDI are satisfied with 1.5 and 3 Gbit/s respectively, emerging ultra-high density interfaces such as UHDTV 4k and 8k (Ultra-High Definition TV) demand connection capacity of several tens of Gbit/s.
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I know, the title sounds grandiose, doesn’t it? ‘My Life without Wi-Fi,’ and I also know it’s a first world problem, but I wanted to undertake an experiment of sorts. I wondered if I could survive at least three consecutive days without Wi-Fi – to be honest I had initially pondered a week’s withdrawal, but felt that such masochistic torture wasn’t necessary.
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The need to change the data center network from a hierarchal one to a leaf-spine or more meshed one has arisen from the ever-increasing need for compute and storage access and the use of server virtualization. Now that many applications can run on one server, if that server gets overloaded, virtual machines (applications) need to move to another server quickly—four hops through the network is not quick, so network architecture is changing to accommodate the mobility of VMs. So now what used to be just a client-server standard three-tier network is starting to look like a HPC cluster.
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