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Entries for 'sdn'

#devops #SDN The importance of APIs and programmable data paths to the future of networking.   OpenStack. OpenDaylight. SDN. Cloud. It's all about abstraction, about APIs and "software-defined" (which really means software-controlled, but this is neither the time or place to get into that debate). It's about jailbreaking the network. Enabling access to features and functionality in a way that results in new services, increased responsiveness and overall, the operationalization of the net...
#SDN #Devops #Cloud You gots to have some management .... Nick Lippis, who writes the eponymously named Lippis Report, had a fascinating report on the differences between enterprise and service provider environments with respect to network <something> virtualization. He observes, through a survey of the ONUG (Open Networking User Group) membership, that what the enterprise needs is Network Service Virtualization (NSV), which he and ONUG define as the virtualization of "enterpris...
SDN, like every new technology, has begun maturing from its singular focus on standardizing networks to embrace a broader vision focused on addressing real challenges in modern data centers. SDN today aims to provide an automated, policy-driven data center capable of adapting to the rapid shifts in technology driven by cloud, mobility and massive growth in applications. Customers require a comprehensive approach to deploying applications that includes automating and orchestrating both network an...
#SDN #NFV #devops #interop Service chaining allows the network to grow up and really participate in business processes The term "service chaining" hasn't quite yet made it into the mainstream IT vernacular.  It's current viewed as a technical mechanism for directing packets ,flows or messages (depending on where you sit in the network stack) around the network. Service chaining is the answer to "how do orchestrate the flow of data across the great divide that exis...
#sdas #webperf Sometimes it's not whether or not you use hardware, but the hardware you choose to use Everybody talks a good game with respect to changing the economy of scale, but very few explain how that's going to actually happen. The reality in most enterprise data centers today is that services are expensive. Traditional architectures prescribe a redundant set of network devices be deployed in order to preserve operational reliability (performance and availability). But given the hundred...
As we heard at last week’s Open Networking Summit 2014, managing change and complexity in data centers is becoming increasingly difficult as IT and operations are constantly being pressured to deliver more features, more services, and more applications at ever increasing rates. The solution is to design the network for rapid evolution in a controlled and repeatable manner similar to how modern web applications are deployed. This is happening because it is no longer sufficient for busine...
#SDN #cloud #devops Scalability's dirty little secret: if your architecture is designed to support elasticity, you must have idle resources Proponents of pure software infrastructures often point to rapid provisioning (like right now, push a button and blam! Instant scale) as one of the reasons to "go software." Superficially this is true. If your infrastructure is all software (or virtual, if you prefer) then when you need more X you can simply grab some available resources and provision more ...
#infosec #DDoS #webperf NTP is rarely mentioned as a protocol of importance, but without it, high availability would be nigh unto impossible and performance enhancing services would be crippled Krebs (on Security) writes about the recent NTP-based DDoS attacks in "The New Normal: 200-400 Gbps DDoS Attacks" and as is the case with most coverage of the attack, describes NTP as basically the Internet's time keeper. Which it is. While generally described to broader audiences as "that server that ...
Guest blog by Andreas Roeder, Solutions Architect, Service ProvidersEven if there are not publicly available and massive across the board worldwide deployments of SDN/NFV yet, there is a lot of traction on the topic of stack consolidation in the industry right now. There are also a lot of adjacent subdomains for SDN/NFV such as the virtual networking itself, and how to connect all those pieces from a networking perspective - the virtual functions by themselves and the management and orchestratio...
articlemanagementsdnsdas February 24, 2014 by Lori MacVittie
#SDN Which came first? Pundits, owing to SDN still being very young and not widely adopted, continue to put forth treatise upon treatise as to why organizations should be falling over themselves to go out and get themselves some SDN. Now. Not tomorrow, today. One of the compelling reasons to adopt is to address a variety of operational issues that arise from complexity and differentiation in network elements. The way SDN addresses this - as do a variety of other options - is standardization. N...
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