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Rethinking the Network

Michael Bushong

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Top Stories by Michael Bushong

Recently Arista released a white paper surrounding the idea that having deeper buffers running within the network can help to alleviate the incast congestion patterns that can present when a large number of many-to-one connections are happening within a network. Also known as the TCP incast problem. They pointedly targeted Hadoop clusters, as the incast problem can rear its ugly head when utilizing the Hadoop Cluster for  MapReduce functions. The study used an example of 20 servers hanging off of a single ToR switch that has 40Gbps of uplink capacity within a Leaf/Spine network, presenting a 5:1 oversubscription ratio. This type of oversubscription was just seen in the recent release of the Facebook network that is used within their data centers. So its safe to assume that these types of oversubscription ratios are seen in the wild. I know I’ve run my fair share o... (more)

IT’s Third Platform By @PlexxiInc [#SDN #BigData]

With the blurring of technology lines, the rise of competitive companies, and a shift in buying models all before us, it would appear we are at the cusp of ushering in the next era in IT — the Third Platform Era. But as with the other transitions, it is not the technology or the vendors that trigger a change in buying patterns. There must be fundamental shifts in buying behavior driven by business objectives. The IT industry at large is in the midst of a massive rewrite of key business applications in response to two technology trends: the proliferation of data (read: Big Data) ... (more)

What Is Important for #Cloud Services? | @CloudExpo

Amazon is indisputably the biggest name in cloud service providers. They have built up a strong market presence primarily on the argument that access to cheap compute and storage resources is attractive to companies looking to shed IT costs as they move from on-premises solutions to the cloud. But after the initial push for cheap resources, how will this market develop? Is cheap really cheap? Amazon has cut prices to their cloud offering more than 40 times since introducing the service in 2006. The way this gets translated in press circles is that cloud services pricing is approa... (more)

OpEx Savings and the Ever-Present Emergence of SDN

Software-defined networking is fundamentally about two things: the centralization of network intelligence to make smarter decisions, and the creation of a single (or smaller number of) administrative touch points to allow for streamlined operations and to promote workflow automation. The former can potentially lead to new capabilities that make networks better (or create new revenue streams), and the latter is about reducing the overall operating costs of managing a network. Generating revenue makes perfect sense for the service providers who use their network primarily as a mea... (more)

Plexxi Pulse—HadoopWorld 2014: Is your network ready for Big Data?

We are two short weeks away from HadoopWorld, one of the world’s largest Big Data conferences. October 15—17 our team will be in in New York City to demo our Big Data fabric and answer questions about preparing networks for Big Data. Stop by booth 552 to catch up with our team and pick up a pair of Plexxi Socks. We look forward to seeing you there. In this week’s PlexxiTube of the week, Dan Backman describes how Plexxi manages load balancing in Big Data networks. Check out what we’ve been up to on social media this week. Have a great weekend! [View the story "Plexxi-Week of Se... (more)