Selecting a PoE power source for a powered device can be challenging since there are many options. Here is a brief overview to help you narrow down your choices and make the right decision.
The next set of Leaf-and-Spine Fabric Myths listed by Evil CCIE focused on BGP:
BGP is the best choice for leaf-and-spine fabrics.
I wrote about this particular one here. If you’re not a BGP guru don’t overcomplicate your network. OSPF, IS-IS, and EIGRP are good enough for most environments. Also, don’t ever turn BGP into RIP with AS-path length serving as hop count.
Read more ...Detecting spacecraft anomalies using LSTMs and nonparametric dynamic thresholding Hundman et al., KDD’18
How do you effectively monitor a spacecraft? That was the question facing NASA’s Jet Propulsion Laboratory as they looked forward towards exponentially increasing telemetry data rates for Earth Science satellites (e.g., around 85 terabytes/day for a Synthetic Aperture Radar satellite).
Spacecraft are exceptionally complex and expensive machines with thousands of telemetry channels detailing aspects such as temperature, radiation, power, instrumentation, and computational activities. Monitoring these channels is an important and necessary component of spacecraft operations given their complexity and cost. In an environment where a failure to detect and respond to potential hazards could result in the full or partial loss of spacecraft, anomaly detection is a critical tool to alert operations engineers of unexpected behavior.
Anomaly detection systems deployed today typically consist of tiered alarms indicating when values fall outside of pre-defined limits. There are also limited instances of expert systems and nearest-neighbour based approaches being tried, but their limitations prevented widespread adoption. A more accurate and scalable approach to anomaly detection that makes better use of limited engineering resources is required.
Any such system needs to work with data that is highly Continue reading
The Docker Certified Technology Program is designed for ecosystem partners and customers to recognize Containers and Plugins that excel in quality, collaborative support and compliance. Docker Certification gives organizations enterprises an easy way to run trusted software and components in containers on the Docker Enterprise container platform with support from both Docker and the publisher.
In this review, we’re looking at Docker Network Plugins. Networking has long been a vertical in the enterprise cloud and data center that has no shortage of complexity. Just as an overarching goal of Docker Enterprise is to make deploying and operating containers as simple as possible, the same goal applies to making Swarm networking as simple as possible. This powerful abstraction of complexity, is applicable regardless of whether in the customers data center or spread across multiple clouds. In some cases Docker Enterprise solves customer problems by shipping built-in plugins and in other scenarios the user’s needs are solved by innovations from the extensive Docker ecosystem. These solutions are validated by both Docker and the partner company and integrated into a seamless support pipeline that provide customers the world class support they have become accustomed to when working with Docker.
Check out the Continue reading
A talking point I often lean on when speaking to customers is, “It’s Linux, so use whatever tool you like.” This approach can be especially paralyzing for customers that are just getting started with automating their network and compute infrastructure in a uniform way. In those particular situations, diving into the numerous articles that pit the various automation tools against each other can be counterproductive. Instead, I often find the most value in looking at a few examples of a particular tool in action that is addressing a use case which is relevant to me, while following along hands-on.
Salt frequently comes up as one of the options in the infrastructure configuration management conversation, however its main differentiator is the message bus architecture and the ability to react to events in real time. While that sounds a bit abstract, the main question we should be asking ourselves is how will this simplify the day to day management of my infrastructure? In this post, we’ll step through getting the configuration on a couple Cumulus switches under full management with Salt, and end with a practical event-based workflow for adding and replacing devices in our infrastructure.
Configuration Management
In a previous Continue reading
Now that deep learning at traditional supercomputing centers is becoming a more pervasive combination, the infrastructure challenges of making both AI and simulations run efficiently on the same hardware and software stacks are emerging. …
HPC File Systems Fail for Deep Learning at Scale was written by Nicole Hemsoth at .
Red Hat Ansible Engine 2.7 is now available, featuring improved stability, speed and performance.
Ansible Engine 2.7 continues to improve compatibility with modern versions of Python. As a result of changes to support newer versions of Python, support for running Ansible Engine with Python 2.6 has been removed. Management of systems with Python 2.6 installed is still possible, though the system Ansible Engine is running from must have Python 2.7 or Python 3.5 or later. This means if ansible-pull is being used the system running ansible-pull will need Python 2.7 or Python 3.5 or later.
A new file locking feature is designed to prevent race conditions when delegating to a central resource. For example, if a play calls for several hosts to write to a single file on a remote host it is likely multiple hosts would attempt to write to the file at the same time. This can now be done in Ansible Engine 2.7.
Deprecating use of features is often a challenging task. This task can be even more challenging when it involves multiple Ansible core modules. In Ansible Engine 2.7, several modules have Continue reading
After a disappointing first quarter Symantec needs these cloud security updates to boost its bottom line and clout with enterprise customers.
In a business update conference call with investors the firm's CEO said Radcom is dealing with the challenges of a lengthy NFV sales cycle and the immaturity of the NFV ecosystem.
The service provider prides itself on its network superiority but can it maintain its competitive edge and still outsource its IT department?
The company currently supports 50 services at the FedRAMP Moderate level with plans to push that to the FedRAMP High level by year-end.
Google on Monday also said it would shut down its Google+ social network after a vulnerability exposed the personal data of approximately 500,000 users.