I got this design improvement suggestion after publishing When Is BGP No Better than OSPF blog post:
Putting all the leafs in the same ASN and filtering routes sent down to the leafs (sending just a default) are potential enhancements that make BGP a nice option.
Tony Przygienda quickly wrote a one-line rebuttal: “unless links break ;-)”
Read more ...Improving the expressiveness of deep learning frameworks with recursion Jeong, Jeong et al., EuroSys’18
(If you don’t have ACM Digital Library access, the paper can be accessed either by following the link above directly from The Morning Paper blog site).
Last week we looked at the embedded dynamic control flow operators in TensorFlow. In today’s paper choice, Jeong et al. make the case for support of an additional control flow construct: recursion. A little recursion it turns out, can go a long way. Implemented on top of TensorFlow (and with a design that should also work for other embedded control flow machine learning frameworks e.g. Theano, Caffe, MXNet), support for recursion enables cleaner expression of a class of model architectures, and improved performance. The performance gains come from the increased opportunities to exploit parallelism within the recursive definitions.
In this paper, we introduce recursive definitions into the programming model of existing embedded control flow frameworks, adding first-class support for recursion. By allowing users to directly express recursive definitions in application code with enhanced programmability, models with recursive data structures such as trees or graphs can be written without requiring users to use a separate complex API Continue reading
We often receive the following campus design question: “do you support switch stacking?” This is a fair question, as many of the legacy vendors have promoted stacking designs for the past decade. It’s popular enough that people ask for it, so we must support it, right?
Well, the popular option isn’t always the best one, and switch stacking designs are a very good example of that philosophy. So when people ask if we support stacking, we think to ourselves “heck, no” before politely telling them that we do not because better options exist.
“Perfection is attained, not when there is nothing more to add, but when there is nothing more to take away.”
At Cumulus Networks, we believe that simplicity is the corner-stone of network design.
Or, to say it another way, complex designs fail in complex ways (shoutout to Eric Pulvino for that quote!). Our former Chief Scientist, Dinesh Dutt, gave an excellent explanation around the importance of simple building blocks in his Tech Field Day 9 Presentation (6min 50 seconds in).
Let’s address a little history on switch stacking and then break down the major technical downfalls of a stacking design, the stacking protocol itself, Continue reading
Photo by Patrick Tomasso / Unsplash
Are you based in Boston, London, or New York? There's a lot going on this month from the London Internet Summit to Developer Week New York and additional meetups in Boston and New York. Drop by our events and connect with the Cloudflare community.
Photo by The Opte Project / Originally from the English Wikipedia; description page is/was here.]
Tuesday, June 12: 6:00 pm - 8:00 pm
Location: Drift - 222 Berkley St, 6th Floor Boston, MA 02116
Join us at Drift HQ for a panel discussion on user experience, developer experience, and integration, featuring Elias Torres from Drift and Connor Peshek and Ollie Hsieh from Cloudflare.
The panelists will speak about their experiences developing user-facing applications, best practices they learned in the process, the integration of the Drift app and the Cloudflare Apps platform, and future platform features.
View Event Details & Register Here »
Photo by Luca Micheli / Unsplash
Thursday, June 14: 9:00 am - 6:00 pm
Location: The Tobacco Dock - Wapping Ln, Continue reading
The Network Collective crew—Jordan, Eyvonne, and I—will be at Cisco Live this week. You can normally find me hanging around the certifications or social media lounge, or just walking around the floor talking to folks. I’m presenting at the CCDE techtorial on Sunday.
NSX Data Center has shown for some time now (see VMworld 2016 NSX Performane Session (NET 8030) that it can drive upwards of 100G of throughput per node for typical data center workloads. In that VMworld session, we ran a live demo showing the throughput being limited by the actual physical ports on the host, which were 2 x 40 Gbps, and not by NSX Data Center.
Typically, in physical networking, performance is measured in raw packets per seconds to assure variety of traffic at variable packet sizes be forwarded between multiple physical ports. While in virtualized data center this is not a case, as hypervisor hosts only have to satisfy few uplinks, typically no more than four physical links. In addition, most of the virtualized workload use TCP protocol. In that case. ESXi hypervisor fowards the TCP data segments in highly optimized way, thus not always based on number of packets transferred but the amount of data segment forwarded in software. In typical data center workloads, TCP optimizations such as TSO, LRO and RSS or Rx/Tx Filters help drive sufficient throughput at hardly any CPU cost. TSO/LRO help move large amounts of Continue reading
The initial release of the SevOne SD-WAN Monitoring software will give insights into Cisco-Viptela SD-WAN environments, but it will soon be extended to support other SD-WAN vendors.
Severalnines has spent the last several years writing blogs and crafting content to help make your open source database solutions highly available. We are fans of highscalability.com and wanted to post some links to our top resources to help readers learn more how to make MySQL, MongoDB, MariaDB, Percona and PostgreSQL databases scalable.
The Full Stack Engineer’s Guide to Network Programmability with Python will provide learners with an inductive and comprehensive introduction to the Python programming language to include the various data types, control flow structures, functions, methods, classes, objects, reading and writing files, data storage using MySQL, and regular expressions. We will also cover on- and off-box Python automation and explore the guest shell in IOS-XE!
White box beat Dell EMC in terms of data center server revenue and units shipped in the first quarter of 2018.
The Linux Foundation Executive Director Jim Zemlin acknowledges that there are “still small pockets of deep mistrust of Microsoft in the open source community.”
One trial used the OIF's FlexEthernet client interface standard, the other was based on Ciena's WaveLogic Ai platform.
The BT executive just last month announced plans to slash 13,000 jobs as part of a broader corporate restructuring. Investors were not happy.
