SDN Blog

This week’s big networking news is that Facebook announced that they have built their own switch (codenamed “Wedge”) and the corresponding networking software on top (“FBoss”).  While the specific technical details are still coming out, I’m more interested in why they did it.  Facebook is an advertising company on steroids, not a networking vendor.  They are not going to... Read more

As the shift from traditional networking to SDN-based hyperscale networking take place in enterprise and cloud provider data centers, security and network operations teams still require granular visibility to applications.  Application visibility is important for the purpose of application response time measurements, application troubleshooting, application security monitoring (against advanc... Read more

Achieving DC-Class Resiliency and “Headless” RecoveryIn the second part of the technical blog series, I talk about how forwarding state in modern OpenFlow is communicated from SDN controllers down to switches.  While this level of detail is well beyond what a typical administrator needs to understand about networking products, it is key to SDN’s scalability and reliability.  More s... Read more

Unlocking Hyperscale with Multiple TablesEven after four years of work from the Open Networking Foundation (ONF), three substantial updates to the specification, and countless training sessions, there still exists significant confusion about the OpenFlow protocol and SDN -- particularly about their performance and scale. Fortunately, as more OpenFlow-based commercial products ship and customers ex... Read more

Today, we announced a partnership with Dell to create an SDN choice in their open networking initiative.  Big Switch’s Switch Light SDN Operating System will run on Dell ethernet switching hardware lines (S4810-ON and S6000-ON initially), and Dell will resell hardware/software/services solutions that include Switch Light and Big Switch’s SDN Controllers.  Clearly, this is another inf... Read more

Rob Sherwood, Big Switch's CTO, gave a BrightTalk Webinar last week on Modern OpenFlow, and an overview of the open source components that play in it.As one of the one of the inventors of OpenFlow and author of FlowVisor (network virtualization using OpenFlow) in his Stanford days, Rob has been a part of SDN since its inception.  In this talk, he lays out a few hallmarks of SDN as it matures:... Read more

Big Switch Networks is excited to announce general availability of the Big Tap Monitoring Fabric Release 3.0 – production-grade SDN solution on commodity bare-metal switches. This release further enhances deployment flexibility, simplifies policy management and fabric operations and enables a much higher scale as our customers broaden deployments to hundreds of tap & span ports per data cent... Read more

As data center networks transition to modern designs to meet demands of cloud computing, data analytics and 4G/LTE mobile services, the corresponding traffic monitoring networks also need to transition to next-generation designs.  Traffic monitoring is necessary for variety of reasons, including network troubleshooting, network performance monitoring (NPM), application performance monitoring ... Read more

I just got back from this year's Open Compute Summit and I have to say -- I was blown away.  Somewhere between the 3500 attendees, keynote talks from industry heavy weights, a surprise appearance from Mark Zuckerberg, and some hard numbers on open hardware cost savings ("Estimate over $1.2 billion over the last 3 years" - Frank Frankovsky, VP of Hardware Design and Supply Chain Operations at ... Read more

In our previous blog post (Applications & Networks: Reunited Through SDN Innovations), we focused on latest innovations in software-defined networking – or SDN 2.0 – to bring networks to modernity. This is music to IT organizations because with SDN 2.0 networks they can deploy apps rapidly, significantly reduce OpEx and dramatically reduce CapEx. In parallel, the open-source initiative for... Read more

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