Technology Short Take 120

Welcome to Technology Short Take #120! Wow…hard to believe it’s been almost two months since the last Tech Short Take. Sorry about that! Hopefully something I share here in this Tech Short Take is useful or helpful to readers. On to the content!

Networking

Servers/Hardware

I don’t have anything to share this time around, but I’ll stay alert for content to include future Tech Short Takes.

Security

Five Minutes To Magic Time

Have you ever worked with someone that has the most valuable time in the world? Someone that counts each precious minute in their presence as if you’re keeping them from something very, very important that they could use to solve world hunger or cure cancer? If you haven’t then you’re a very lucky person indeed. Sadly, almost everyone, especially those in IT, has had the misfortune to be involved with someone whose time is more precious than platinum-plated saffron.

That’s not to say that we should be wasting the time of those we work with. Simple things like being late to meetings or not having your materials prepared are easy ways to help reduce the time of meetings or to make things run smoothly. Those items are common courtesies that should be extended to all the people you meet, from the cashier that takes your order at a fast food establishment to the most powerful people on the planet. No, this is about something deeper and more insidious.

No Time For Hugs

I’ve seen the kind of behavior I’ve described very often in the higher echelons of companies. People that live at the CxO level often have very little time Continue reading

Heavy Networking 488: Using Genetic Algorithms To Avoid Internet Censorship

Today's Heavy Networking dives into a research project, Geneva, that uses genetic algorithms to evade Internet censorship. The project was developed at the University of Maryland. We drill into how it works with guests Dr. David Levin and graduate student Kevin Bock from the University of Maryland.

The post Heavy Networking 488: Using Genetic Algorithms To Avoid Internet Censorship appeared first on Packet Pushers.

Nokia Argues Cloud Native Is Essential to 5G Core

Nokia outlined five key business objectives for 5G that can only be delivered by a cloud-native...

Read More »

© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

A10 Hires New CEO, No Word on Potential Sale

Almost four months after announcing that its founding CEO Lee Chen was on his way out, A10 Networks...

Read More »

© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

Learn the basics of electrical engineering for only $25 today.

Without electrical engineers, everything from your home lighting to your smartphone wouldn’t work properly. Needless to say, electrical engineers make our world go round, and it’s them who spearhead the latest innovations in tech. If you’re intent on creating the world’s next revolutionary product, you’ll at least need to understand the basics, and this bundle will get you up to speed for just $25.To read this article in full, please click here

Recommended Networking Resources for September 2019 First Week

I would like to share with you every week some networking resources , can be video , article , book , diagram , another website etc.

Whatever I believe can be useful for the computer network engineers, mobile network providers, satellite engineers ,transmission experts, datacenter engineers, basically whatever I am interested in and I like, I will share in a blog post.

There will not be any order of importance among the resources. You can open and go through anyone you want.

I will try to limit the list with 5 resources as I want you to read the posts that I publish on the website. Sometimes can be more than 5 though!

Let’s get started!

TCP vs QUIC – Quic is a new transport protocol I think everyone should have a look at. What are the high level differences between them etc.

TCP vs QUIC: A New Transport Protocol

 

2. Below post explains how BGP As-Path prepending , when it is done more than couple times , can be dangerous for the attacks on BGP information security

 

Excessive BGP AS-PATH prepending is a self-inflicted vulnerability

 

3. This presentation is one of the best presentation about BGP Continue reading

Weekly Wrap: Palo Alto Networks Leaps Into SASE Market

SDxCentral Weekly Wrap for Nov. 22, 2019: The burgeoning SASE market lures another entrant; Nokia...

Read More »

© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

Video: Breaking the End-to-End Principle

Original TCP/IP and OSI network stacks had relatively clean layered architecture (forgetting the battle scars for the moment) and relied on end-to-end principle to keep the network core simple.

As always, no good deed goes unpunished - “creative” individuals trying to force-fit their mis-designed star-shaped pegs into round holes, and networking vendors looking for competitive advantage quickly destroyed the idea with tons of middlebox devices, ranging from firewalls and load balancers to NAT, WAN optimization, and DPI monstrosities.

Watch the video

You need free ipSpace.net subscription to watch the video, or a paid ipSpace.net subscriptions to watch the whole How Networks Really Work webinar.

PlanAlyzer: assessing threats to the validity of online experiments

PlanAlyzer: assessing threats to the validity of online experiments Tosch et al., OOPSLA’19

It’s easy to make experimental design mistakes that invalidate your online controlled experiments. At an organisation like Facebook (who kindly supplied the corpus of experiments used in this study), the state of art is to have a pool of experts carefully review all experiments. PlanAlyzer acts a bit like a linter for online experiment designs, where those designs are specified in the PlanOut language.

We present the first approach for statically checking the internal validity of online experiments. Our checks are based on well-known problems that arise in experimental design and causal inference… PlanAlyzer checks PlanOut programs for a variety of threats to internal validity, including failures of randomization, treatment assignment, and causal sufficiency.

As well as pointing out any bugs in the experiment design, PlanAlyzer will also output a set of contrasts — comparisons that you can safely make given the design of the experiment. Hopefully the comparison you wanted to make when you set up the experiment is in that set!

Experimental design with PlanOut

PlanOut is a open source framework for online field experiments, developed by and extensively used at Facebook. To quote Continue reading

Go Notes: Arrays

Arrays are a collection of values of the same type. go // create an array that can hold 2 elements var stuff [2]string // assign values to the array stuff[0] = "blah" stuff[1] = "bleh" // shortcut to create an array and assign values stuff := [2]string // let the go compiler dynamically...

Liqid, Western Digital Demo Composable NVMe-oF

Western Digital and Liqid demonstrated the ability to orchestrate NVMe over Fabrics across...

Read More »

© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

KubeCon 2019 Day 3 and Event Summary

Keynotes

Bryan Liles kicked off the day 3 morning keynotes with a discussion of “finding Kubernetes’ Rails moment”—basically focusing on how Kubernetes enables folks to work on/solve higher-level problems. Key phrase from Bryan’s discussion (which, as usual, incorporated the humor I love to see from Bryan): “Kubernetes isn’t the destination. Kubernetes is the vehicle that takes us to the destination.” Ian Coldwater delivered a talk on looking at Kubernetes from the attacker’s point of view, and using that perspective to secure and harden Kubernetes. Two folks from Walmart also discussed their use case, which involves running Kubernetes clusters in retail locations to support a point-of-sale (POS) application at the check-out register. Finally, there was a discussion of chaos engineering from folks at Gremlin and Target.

No Breakout Sessions

Due to booth duty and my flight home, I wasn’t able to attend any breakout sessions today.

Event Summary

If I’m completely honest, I didn’t get as much out of the event as I’d hoped. I’m not yet sure if that is because I didn’t get to attend as many sessions as I’d hoped/planned (due to problems with sessions being moved/rescheduled or whatever), if my choice of sessions was just poor, Continue reading

Extreme Embeds Fabric Automation on Broadcom-Based Switches

“Everybody does automation,” Extreme’s Dan DeBacker said. “But we believe we’re the only...

Read More »

© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

Real-time monitoring at terabit speeds

The Flow Trend chart above shows a real-time, up to the second, view of nearly 3 terabits per second of traffic flowing across the SCinet network, described as the fastest, most powerful volunteer-built network in the world. The network is build each year to support The International Conference for High Performance Computing, Networking, Storage, and Analysis. The SC19 conference is currently underway in Denver, Colorado.
The diagram shows the Joint Big Data Testbed generating the traffic in the chart. The Caltech demonstration is described in NRE-19: SC19 Network Research Exhibition: Caltech Booth 543 Demonstrations Hosting NRE-13, NRE-19, NRE-20, NRE-22, NRE-23, NRE-24, NRE-35:
400GE First Data Networks: Caltech, Starlight/NRL, USC, SCinet/XNET, Ciena, Mellanox, Arista, Dell, 2CRSI, Echostreams, DDN and Pavilion Data, as well as other supporting optical, switch and server vendor partners will demonstrate the first fully functional 3 X400GE local ring network as well as 400GE wide area network ring, linking the Starlight and Caltech booths and Starlight in Chicago. This network will integrate storage using NVMe over Fabric, the latest high throughput methods, in-depth monitoring and realtime flow steering. As part of these demonstrations, we will make use of the latest DWDM, Waveserver Ai, and 400GE as Continue reading

It Takes a Community: Kubernetes’ Long Road to Dual IPv4/IPv6 Support

Portworx sponsored The New Stack’s coverage of KubeCon+CloudNativeCon North America 2019. While you may thinking of Kubernetes as the future of computing, but it was, until recently, still stuck in the past in one way, namely that it was built on IPv4, the widely-used, though a soon-to-be-legacy version of the Internet Protocol upon which the internet was built. The Internet Engineering Task Force has been long urging the internet service providers to move to IPv6, now that the world has exhausted the supply of 32-bit IPv4 addresses. With its 128-bit address space, IPv6 will offer an inexhaustibly supply of internet addresses. “We ignored it,” admitted KubeCon + CloudNativeCon North America 2019 conference he gave with

The Latest in NetOps Monitoring for Cisco and Versa SD-WAN

CA’s NetOps 19.1 release simplifies Cisco Vipela and Versa SD-WAN management to help you optimize...

Read More »

© SDxCentral, LLC. Use of this feed is limited to personal, non-commercial use and is governed by SDxCentral's Terms of Use (https://www.sdxcentral.com/legal/terms-of-service/). Publishing this feed for public or commercial use and/or misrepresentation by a third party is prohibited.

1 … 1,090 1,091 1,092 1,093 1,094 … 3,844