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Lori MacVittie

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Top Stories by Lori MacVittie

State of Application Delivery 2015: Full-stack Security Confidence Security is one the more prominent of the application service categories, likely due to its high profile impact. After all, if security fails, we all hear about it. The entire Internet. Forever. So when one conducts a survey on the state of application delivery (which is implemented using application services) you kinda have to include security. Which of course, we did. But when we asked questions about security we got down in the dirt. We asked the expected questions like what security services organizations were deploying (spoiler: it's a lot of them) and which ones they were planning on deploying. But we also asked some deeper, probing questions about web application security practices and their confidence in being able to withstand an application layer attack. We asked that question because repor... (more)

Integrate Network Services By @LMacVittie | @DevOpsSummit [#DevOps]

How You Integrate Network Services Matters This post is cross-posted at https://blogs.cisco.com/datacenter/how-you-integrate-network-services-matters Polymorphism is a concept central to object-oriented programming. The notion of polymorphism is used to extend the capabilities of a basic object, like a mammal, to specific implementations, like cats or dogs or honey badgers, even though they don't care about such technical distinctions. A good example of this is cats and dogs, which are both of the type "mammal" but that "speak" in a different voice. This becomes important as we ... (more)

The Art of Scale with Microservices | @DevOpsSummit [#DevOps]

The Art of Scale: Microservices, The Scale Cube and Load Balancing Microservice architectures are the new hotness, even though they aren't really all that different (in principle) from the paradigm described by SOA (which is dead, or not dead, depending on whom you ask). One of the things this decompositional approach to application architecture does is encourage developers and operations (some might even say DevOps) to re-evaluate scaling strategies. In particular, the notion is forwarded that an application should be built to scale and then infrastructure should assist where ne... (more)

Internet of Things and Mobile Communications By @LMacVittie | @ThingsExpo [#IoT]

Optimizing IoT and Mobile Communications with TCP Fast Open There's a lot of focus on the performance of mobile communications given the incredible rate at which mobile is outpacing legacy PC (did you ever think we'd see the day when we called it that?) usage. There's been tons of research on the topic ranging from the business impact (you really can lose millions of dollars per second of delay) to the technical mechanics of how mobile communications is impacted by traditional factors like bandwidth and RTT. Spoiler: RTT is more of a factor than is bandwidth in improving mobile ... (more)

The Problem Isn't Change By @LMacVittie | @DevOpsSummit [#DevOps]

The Problem Isn't Change. It's Uncontrolled Change You deployed an app. Nothing has changed in three days, but it suddenly crashes. Why? Memory leak. You deployed an app. Nothing has changed in three weeks, but it suddenly stops working. Why? A database query came back empty and the web application freaked out trying manipulate a null value, deciding instead to just stop in its track and return nothing. You deployed a load balancing service. Nothing has changed in three months, but it suddenly stopped load balancing your app. Why? One of the ports on an intermediate switch decid... (more)