Welcome!

Linux Containers Authors: Elizabeth White, Pat Romanski, ManageEngine IT Matters, Liz McMillan, Greg Schulz

Blog Feed Post

Commodity Network Fabrics

What role does the concept of a “network fabric” play in the march towards commoditization of networking?  Well, let’s discuss!

The Whole Shebang

There can be no doubt that an organization’s relationship to networking is to the aggregate thing they call “the network.”  When there are issues, non-network folks say wonderfully vague things like “The network is dropping packets!” or “I can’t login… must be the network.”  This intuition, to think about the network as a whole, rather than as a collection of systems, is right:  Collectively, the network is supposed to produce desirable aggregate behavior.

This is an important clue as to how networking will evolve in the future.  SDN is a step in this direction.  Intelligent software will undoubtedly coordinate the actions of the underlying constituent systems, on behalf of an operator or an application, to achieve some policy goals.  This software need not exist solely in the form of a network controller.  Indeed, here at Plexxi, our switches can coordinate on their own to achieve aggregate behavior.  This is why you can stand up a Plexxi network, and pass traffic, without the need for a centralized controller.

A network fabric should have the goal of managing network workloads according to a higher-level policy.  However, many fabrics do not do this.  They may have some desirable fabric features, but for edge policies operators must still log into individual devices to achieve their goals.  This, of course, is the fundamental problem of networking that SDN hopes to solve:  Let intelligent software perform these menial tasks, and let the organization, or the operator, express network-wide policy to the software.

The Value of the Network

What is the value of the network?  Fundamentally, the network has one feature that matters: paths.  The job the network, first and foremost, is to facilitate the movement of data between it’s edges.  The more paths a network has, the better.  We even see this in leaf-and-bufferspine designs.

Administrative, control, voice, video, bulk, and garbage are just some of the workload types requiring different treatment in the network.  When you have fewer paths in the network, it becomes increasingly difficult to manage workload conflict that arises when multiple types of traffic converge on an egress interface.  Quality-of-Service has always represented a sort of white flag of surrender before conflict even occurs, and let’s be honest, it’s been an absolute nightmare to manage on the ground.  Aggregate flow characteristics change throughout the day (burstiness, packet size distribution, differing workload types), making static policies difficult to implement.  The best you can hope for is a policy that represents the lowest-common denominator compromise.

Even when you have multiple paths in the network, it’s virtually impossible to manage and move differing workload types.  How frustrating it has been that spanning-tree cut the usable bandwidth down drastically in the data center.  Even if we could use it, how to move only some workloads?  Imagine doing this when you have multiple types of workloads just within HTTP!  Transferring files, web traffic, API calls for automation systems… all in the same encapsulation.

QoS is obviously the product of legacy network thinking:  Fewer paths and indiscriminate workload placement, resulting from the erroneous belief that universal reachability for packets is the primary goal of the network.  Build just enough paths to be redundant, put the routes in… and hope for the best.  Are we done being amazed that we can make packets go yet?  Can’t we do better than making a sequel to “The Hangover” because we can ping?  Aren’t we tired of failing to deal with the complexity of networking as a whole?  Then let’s stop using legacy stuff to accomplish our goals.

Network Commodifabricization

The value of the network goes up as more paths are added.  However, the old way of workload placement in the network, as well as the old way of handling workload conflict, just isn’t going to be manageable by hand.  Adding value to the network should be as simple as adding paths, and adding paths should actually be simple both physically and logically.  A commodity network means lots of paths, which are the primary value of the network to begin with.  It also means intelligent software that manages the many types of workloads on the network by distributing them across those paths.  That same software will present an intuitive policy interface to humans who just want “the network” to work.

Where does that leave the current trend of some companies seeking to commoditize on legacy networking?  Well, like cloud, it would seem that many folks are banking on the idea that IT is done evolving.  Including networking!  Obviously, this is not the case.  What we are experiencing right now is the “big crunch” of IT.  If the mainframe represented some primordial IT state that exploded into the constituent pieces of the IT universe, like the big bang of tech, then the data center of the future represents the big crunch of these pieces.  Lots of intermediate layers will disappear, from the guest OS of a VM, to maybe even the IP protocol!  Will linux-based switches and routers with a subset of legacy network features really have a role here?  Perhaps in the short-term, but not for long.

Intuitive network fabrics are the true start down the path of commoditization, making the real value of the network directly and easily manageable.

[Fun fact:  One time, I drove a bulldozer into a pond.  People get really mad when you do that.  Also, it makes the bulldozer inoperable.  Hmmm... if only there had been a "path" around the pond.]

 

The post Commodity Network Fabrics appeared first on Plexxi.

Read the original blog entry...

More Stories By Michael Bushong

The best marketing efforts leverage deep technology understanding with a highly-approachable means of communicating. Plexxi's Vice President of Marketing Michael Bushong has acquired these skills having spent 12 years at Juniper Networks where he led product management, product strategy and product marketing organizations for Juniper's flagship operating system, Junos. Michael spent the last several years at Juniper leading their SDN efforts across both service provider and enterprise markets. Prior to Juniper, Michael spent time at database supplier Sybase, and ASIC design tool companies Synopsis and Magma Design Automation. Michael's undergraduate work at the University of California Berkeley in advanced fluid mechanics and heat transfer lend new meaning to the marketing phrase "This isn't rocket science."

@ThingsExpo Stories
IoT is rapidly changing the way enterprises are using data to improve business decision-making. In order to derive business value, organizations must unlock insights from the data gathered and then act on these. In their session at @ThingsExpo, Eric Hoffman, Vice President at EastBanc Technologies, and Peter Shashkin, Head of Development Department at EastBanc Technologies, discussed how one organization leveraged IoT, cloud technology and data analysis to improve customer experiences and effi...
The Internet of Things will challenge the status quo of how IT and development organizations operate. Or will it? Certainly the fog layer of IoT requires special insights about data ontology, security and transactional integrity. But the developmental challenges are the same: People, Process and Platform. In his session at @ThingsExpo, Craig Sproule, CEO of Metavine, demonstrated how to move beyond today's coding paradigm and shared the must-have mindsets for removing complexity from the develo...
SYS-CON Events announced today that MangoApps will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. MangoApps provides modern company intranets and team collaboration software, allowing workers to stay connected and productive from anywhere in the world and from any device.
The IETF draft standard for M2M certificates is a security solution specifically designed for the demanding needs of IoT/M2M applications. In his session at @ThingsExpo, Brian Romansky, VP of Strategic Technology at TrustPoint Innovation, explained how M2M certificates can efficiently enable confidentiality, integrity, and authenticity on highly constrained devices.
“delaPlex Software provides software outsourcing services. We have a hybrid model where we have onshore developers and project managers that we can place anywhere in the U.S. or in Europe,” explained Manish Sachdeva, CEO at delaPlex Software, in this SYS-CON.tv interview at @ThingsExpo, held June 7-9, 2016, at the Javits Center in New York City, NY.
The IoT is changing the way enterprises conduct business. In his session at @ThingsExpo, Eric Hoffman, Vice President at EastBanc Technologies, discussed how businesses can gain an edge over competitors by empowering consumers to take control through IoT. He cited examples such as a Washington, D.C.-based sports club that leveraged IoT and the cloud to develop a comprehensive booking system. He also highlighted how IoT can revitalize and restore outdated business models, making them profitable ...
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with the 19th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world and ThingsExpo Silicon Valley Call for Papers is now open.
We all know the latest numbers: Gartner, Inc. forecasts that 6.4 billion connected things will be in use worldwide in 2016, up 30 percent from last year, and will reach 20.8 billion by 2020. We're rapidly approaching a data production of 40 zettabytes a day – more than we can every physically store, and exabytes and yottabytes are just around the corner. For many that’s a good sign, as data has been proven to equal money – IF it’s ingested, integrated, and analyzed fast enough. Without real-ti...
SYS-CON Events announced today that 910Telecom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and ...
Big Data, cloud, analytics, contextual information, wearable tech, sensors, mobility, and WebRTC: together, these advances have created a perfect storm of technologies that are disrupting and transforming classic communications models and ecosystems. In his session at @ThingsExpo, Erik Perotti, Senior Manager of New Ventures on Plantronics’ Innovation team, provided an overview of this technological shift, including associated business and consumer communications impacts, and opportunities it ...
You think you know what’s in your data. But do you? Most organizations are now aware of the business intelligence represented by their data. Data science stands to take this to a level you never thought of – literally. The techniques of data science, when used with the capabilities of Big Data technologies, can make connections you had not yet imagined, helping you discover new insights and ask new questions of your data. In his session at @ThingsExpo, Sarbjit Sarkaria, data science team lead ...
WebRTC is bringing significant change to the communications landscape that will bridge the worlds of web and telephony, making the Internet the new standard for communications. Cloud9 took the road less traveled and used WebRTC to create a downloadable enterprise-grade communications platform that is changing the communication dynamic in the financial sector. In his session at @ThingsExpo, Leo Papadopoulos, CTO of Cloud9, discussed the importance of WebRTC and how it enables companies to focus...
ReadyTalk has expanded the capabilities of the FoxDen collaboration platform announced late last year to include FoxDen Connect, an in-room video collaboration experience that launches with a single touch. With FoxDen Connect, users can now not only engage in HD video conferencing between iOS and Android mobile devices or Chrome browsers, but also set up in-person meeting rooms for video interactions. A host’s mobile device automatically recognizes the presence of a meeting room via beacon tech...
Manufacturers are embracing the Industrial Internet the same way consumers are leveraging Fitbits – to improve overall health and wellness. Both can provide consistent measurement, visibility, and suggest performance improvements customized to help reach goals. Fitbit users can view real-time data and make adjustments to increase their activity. In his session at @ThingsExpo, Mark Bernardo Professional Services Leader, Americas, at GE Digital, discussed how leveraging the Industrial Internet a...
On Dice.com, the number of job postings asking for skill in Amazon Web Services increased 76 percent between June 2015 and June 2016. Salesforce.com saw its own skill mentions increase 37 percent, while DevOps and Cloud rose 35 percent and 28 percent, respectively. Even as they expand their presence in the cloud, companies are also looking for tech professionals who can manage projects, crunch data, and figure out how to make systems run more autonomously. Mentions of ‘data science’ as a skill ...
IoT generates lots of temporal data. But how do you unlock its value? You need to discover patterns that are repeatable in vast quantities of data, understand their meaning, and implement scalable monitoring across multiple data streams in order to monetize the discoveries and insights. Motif discovery and deep learning platforms are emerging to visualize sensor data, to search for patterns and to build application that can monitor real time streams efficiently. In his session at @ThingsExpo, ...
"delaPlex is a software development company. We do team-based outsourcing development," explained Mark Rivers, COO and Co-founder of delaPlex Software, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Amazon has gradually rolled out parts of its IoT offerings in the last year, but these are just the tip of the iceberg. In addition to optimizing their back-end AWS offerings, Amazon is laying the ground work to be a major force in IoT – especially in the connected home and office. Amazon is extending its reach by building on its dominant Cloud IoT platform, its Dash Button strategy, recently announced Replenishment Services, the Echo/Alexa voice recognition control platform, the 6-7 strategic...
SYS-CON Events announced today that LeaseWeb USA, a cloud Infrastructure-as-a-Service (IaaS) provider, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. LeaseWeb is one of the world's largest hosting brands. The company helps customers define, develop and deploy IT infrastructure tailored to their exact business needs, by combining various kinds cloud solutions.
The cloud market growth today is largely in public clouds. While there is a lot of spend in IT departments in virtualization, these aren’t yet translating into a true “cloud” experience within the enterprise. What is stopping the growth of the “private cloud” market? In his general session at 18th Cloud Expo, Nara Rajagopalan, CEO of Accelerite, explored the challenges in deploying, managing, and getting adoption for a private cloud within an enterprise. What are the key differences between wh...