Whatever it is, you need more (RFC1925 rule 9)

There is never enough. Whatever you name in the world of networking, there is simply not enough. There are not enough ports. There is not enough speed. There is not enough bandwidth. Many times, the problem of “not enough” manifests itself as “too much”—there is too much buffering and there are too many packets being dropped. Not so long ago, the Internet community decided there were not enough IP addresses and decided to expand the address space from 32 bits in IPv4 to 128 bits in IPv6. The IPv6 address space is almost unimaginably huge—2 to the 128th power is about 340 trillion, trillion, trillion addresses. That is enough to provide addresses to stacks of 10 billion computers blanketing the entire Earth. Even a single subnet of this space is enough to provide addresses for a full data center where hundreds of virtual machines are being created every minute; each /64 (the default allocation size for an IPv6 address) contains 4 billion IPv4 address spaces.

But… what if the current IPv6 address space simply is not enough? Engineers working in the IETF have created two different solutions over the years for just this eventuality. In 1994 RFC1606 provided a Continue reading

Explore Future:NET for a Chance to Win a Bose Headset

Hey there, NSXers!  

The skies are blue, the sun is shining, and summer is in full swing. Whether you’re getting your summer on by grooving to some tunes, or embracing the grind at home or back in the office, there’s one thing you can count on needing: a sweet set of headphones.  

The Future:NET team is here to help! At Future:NET, industry luminaries deliver exclusive insights into all things networking – including a discussion of the lasting impacts of 2020 and predictions on the future of the industry, from app-centric connectivity to ubiquitous access across clouds. Now you can get all that Future:NET goodness — and a pair of Bose noise-canceling headphones too! All you need to do is: 

1. Follow Future:NET on Twitter.

 

2. Watch the Looking Back, Looking Forward session. 

 

3. And post a screenshot of the video in the comment section of our Twitter announcement post.  

Then, we’ll select winners from thee comments and announce them on August 2. Yep, it’s that easy! 

Take your work from anywhere to the next level – with these headphones, you can groove from anywhere while you’re at it. 

PROMOTIONAL DRAWING TERMS & CONDITIONS
NO PURCHASE NECESSARY TO ENTER OR WIN. Void in Quebec and where prohibited. All federal, state, provincial and local laws Continue reading

Network Break 342: SolarWinds Back In Security Hot Seat; In Defense Of The Fax Machine

Today's Network Break podcast delves into security issues at SolarWinds and SonicWall, discusses a new network offload capability between NVIDIA and Palo Alto Networks, comments on Japanese bureaucrats who refuse to give up their fax machines, and more tech news.

The post Network Break 342: SolarWinds Back In Security Hot Seat; In Defense Of The Fax Machine appeared first on Packet Pushers.

The Week in Internet News: U.S. Health Official Warns of COVID Misinformation Online

"In the news" text on yellow background

Bad information: The U.S. surgeon general, the nation’s top public health spokesman, is calling on social media outlets to crack down on misinformation about COVID-19 and the safety of vaccines, The New York Times reports. Misinformation about the pandemic and the vaccines available is “an urgent threat to public health,” Dr. Vivek Murthy said. “Modern […]

The post The Week in Internet News: U.S. Health Official Warns of COVID Misinformation Online appeared first on Internet Society.

Scuttlebutt: Decentralize and Escape the Social Media Rat Race

Richard MacManus Richard is senior editor at The New Stack and writes a weekly column about web and application development trends. Previously he founded ReadWriteWeb in 2003 and built it into one of the world’s most influential technology news and analysis sites. When Twitter began imposing Diaspora — a kind of decentralized Facebook — was founded by four New York students. Later, in 2017, a federated social network named surge of popularity. Now, in 2021, there is a growing underground project called Manyverse and Dominic Tarr, a New Zealander who lived on a boat and had sporadic internet coverage. Tarr’s lifestyle (which, Continue reading

Bash #1. Automating Troubleshooting (Cumulus) Linux Networking

Hello my friend,

Very often at our zero-to-hero network automation training we are asked, what is the benefit of Bash? Why do we need to know Bash, if everyone is talking about Bash? The question is absolutely legitimate. One of the interesting and also legitimate answers I’ve just figured the last week.



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No part of this blogpost could be reproduced, stored in a 

retrieval system, or transmitted in any form or by any 

means, electronic, mechanical or photocopying, recording, 

or otherwise, for commercial purposes without the 

prior permission of the author.

Do you finally write about network automation?

Everything in your network and IT operational processes can be automated. It is just matter of the resources (time, money, efforts) you spent on that against the gain you are obtaining. Basically, that is something what financial guys and girls call ROI (Return On Investments). The bigger the outcome and the lower the effort, the better the overall automation solution.

In our automation trainings we explain various use cases and success (and failure) strategies, how to build the (network) automation systems and tools, to make sure your gain is maximum. Our instructors have an extensive experience building Continue reading

What Drives Innovation in Business?

The world is running competition. The more businesses that pop up, the more the competition increases. The increase in competition gives birth to a concept called “innovation.” Innovation is a concept that isn’t foreign, and after every few decades, there comes a shift in the world where innovation takes over. People nowadays shift very fast from new ideas to other ideas, so businesses need to keep up with that. They need to be able to produce ideas that are new, interesting, and innovative. 

The question arises, what drives innovation in business and what is business innovation in the first place? 

What is Business Innovation?

Business innovation is when businesses and companies bring new ideas, plans, and services to their customers, which will help not only boost their popularity but also help boost their revenue and profit. Innovations in business keep them relevant through time and make them the top business they want to refer to. 

Why a Business Needs Innovation?

Another question that many business owners ask a lot is, what drives innovation in business? What makes it a driving force that essentially propels a business from a small-time business to a big company? Here Continue reading

Should We Embrace Points of Failure?

failure-pic-1

There was a tweet making the rounds this last week that gave me pause. Max Clark said that we should embrace single points of failure in the network. His post was an impassioned plea to networking rock stars out there to drop redundancy out of their networks and instead embrace these Single Points of Failure (SPoF). The main points Mr. Clark made boil down to a couple of major statements:

  1. Single-device networks are less complex and easier to manage and troubleshoot. Don’t have multiple devices when an all-in-one works better.
  2. Consumer-grade hardware is cheaper and easier to understand, therefore it’s better. Plus, if you need a backup you can just buy a second one and keep it on the shelf.

I’m sure more networking pros out there are practically bristling at these suggestions. Others may read through the original tweet and think this was a tongue-in-cheek post. Let’s look at the argument logically and understand why this has some merit but is ultimately flawed.

Missing Minutes Matter

I’m going to tackle the second point first. The idea that you can use cheaper gear and have cold standby equipment just sitting on the shelf is one that I’ve heard of many Continue reading

Technology Short Take 142

Welcome to Technology Short Take #142! This time around, the Networking section is a bit light, but I’ve got plenty of cloud computing links and articles for you to enjoy, along with some stuff on OSes and applications, programming, and soft skills. Hopefully there’s something useful here for you!

Networking

  • Bill Doerrfeld discusses the use of WebAssembly to extend the Envoy proxy here after a discussion with Idit Levine, CEO and founder of Solo.io. Envoy is increasingly becoming an important component in many cloud-native networking solutions, so the ability to extend or customize Envoy’s behavior is quite important in my opinion.

Servers/Hardware

Security

Cloud Computing/Cloud Management

Vodfaone NB-IOT, Fipy and AWS

Timeline : 2-4 months on a occasional weekends

Having a sensor to sense things is one story, Having an on-field sensor is another story in itself. While powering up the sensor and weather proofing is not the intention of this blog post but sure they are the other aspects that one needs to address before moving to higher layer communications.

Growth In Green House – Problem is this Indian variant likes very specific Humidity and Temp and I have to measure Humidity/ Temperature/Ambient Light to know what is helping it. I got great
success only once out of 3 times of sowing

Issue – Have a sensor on Field, make sure it communicates itself to AWS IOT end platform. This is not that simple, that too without using high cost end products which abstracts everything from end-user. To put it in simple terms, you have a field or a farm which is quite away from your home and without a power resource, what would you do ?

Lora is one the most effective option that works for us, while I did setup a Gateway and end-node Lora Device, this post aims at something more simple without involving Lora, I will cover Continue reading

Heavy Networking 589: Cloud Networking’s Good, Bad, And Ugly: What CSPs Don’t Tell You (Sponsored)

Today's Heavy Networking examines how some of the unpleasant bits of cloud networking can be improved, particularly in the areas of troubleshooting, visibility, security, and automation. Our sponsor is Aviatrix, and they’ve sent us three architects to nerd out about cloud network design and how Aviatrix might fit into the picture. Our guests are Brad Hedlund and James Devine from Aviatrix, and customer Chris Oliver with NI.

Heavy Networking 589: Cloud Networking’s Good, Bad, And Ugly: What CSPs Don’t Tell You (Sponsored)

Today's Heavy Networking examines how some of the unpleasant bits of cloud networking can be improved, particularly in the areas of troubleshooting, visibility, security, and automation. Our sponsor is Aviatrix, and they’ve sent us three architects to nerd out about cloud network design and how Aviatrix might fit into the picture. Our guests are Brad Hedlund and James Devine from Aviatrix, and customer Chris Oliver with NI.

The post Heavy Networking 589: Cloud Networking’s Good, Bad, And Ugly: What CSPs Don’t Tell You (Sponsored) appeared first on Packet Pushers.

Weekend Reads 071621


Social media platforms like Instagram and Facebook have become key places for businesses to communicate with customers and even sell directly to consumers. Yet when it comes to actually making a purchase, do consumers trust a social media site over a domain?


Ransomware payouts are putting the squeeze on cyber-insurance companies and resulting in higher premiums for organizations that want protection against the threat.


Christopher Belfi was waiting tables in a lakeside resort near this Upstate New York town a decade ago when he got the career break he’d been waiting for — an invitation to work at a semiconductor factory


Until we can solve the cybersecurity problem for the user at home, threats will remain a concern even for enterprises, with many having large numbers of work-from-home employees.


Prompted in part by devastating attacks such as those on SolarWinds Orion, Microsoft Exchange, and Colonial Pipeline, the White House issued an executive order on cybersecurity in May.


The InfiniBand interconnect emerged from the ashes of a fight about the future of server I/O at the end of the last millennium, and instead of becoming that generic I/O it became a low latency, high bandwidth interconnect used for high performance computing.


Continue reading

Rich, complex rules for advanced load balancing

Rich, complex rules for advanced load balancing
Rich, complex rules for advanced load balancing

Load Balancing — functionality that’s been around for the last 30 years to help businesses leverage their existing infrastructure resources. Load balancing works by proactively steering traffic away from unhealthy origin servers and — for more advanced solutions — intelligently distributing traffic load based on different steering algorithms. This process ensures that errors aren’t served to end users and empowers businesses to tightly couple overall business objectives to their traffic behavior.

What’s important for load balancing today?

We are no longer in the age where setting up a fixed amount of servers in a data center is enough to meet the massive growth of users browsing the Internet. This means that we are well past the time when there is a one size fits all solution to suffice the needs of different businesses. Today, customers look for load balancers that are easy to use, propagate changes quickly, and — especially now — provide the most feature flexibility. Feature flexibility has become so important because different businesses have different paths to success and, consequently, different challenges! Let’s go through a few common use cases:

  • You might have an application split into microservices, where specific origins support segments of your application. You Continue reading

What is Network as a Service (NaaS)?

The day is coming when enterprise IT professionals will be able to order network infrastructure components from a menu of options, have them designed to fit their business needs, and have the whole thing delivered and running in perhaps hours.The concept is called Network as a Service (NaaS), and it has been around in a number of different forms for a few years, mostly in the service provider arena. Read more about NaaS: NaaS is the future, but it's got challenges Cisco takes its first steps toward network-as-a-service The 10 most powerful companies in enterprise networking How to avoid the network-as-a-service shell game For enterprises, the as-a-service concept took hold as companies started to embrace cloud computing and its model of consumption-based capacity. In the infrastructure space, for example, more than 75% of infrastructure in edge locations and up to 50% of data-center infrastructure will be consumed in the as-a-service model by 2024, according to research firm IDC.To read this article in full, please click here

What is Network as a Service (NaaS)?

The day is coming when enterprise IT professionals will be able to order network infrastructure components from a menu of options, have them designed to fit their business needs, and have the whole thing delivered and running in perhaps hours.The concept is called Network as a Service (NaaS), and it has been around in a number of different forms for a few years, mostly in the service provider arena. Read more about NaaS: NaaS is the future, but it's got challenges Cisco takes its first steps toward network-as-a-service The 10 most powerful companies in enterprise networking How to avoid the network-as-a-service shell game For enterprises, the as-a-service concept took hold as companies started to embrace cloud computing and its model of consumption-based capacity. In the infrastructure space, for example, more than 75% of infrastructure in edge locations and up to 50% of data-center infrastructure will be consumed in the as-a-service model by 2024, according to research firm IDC.To read this article in full, please click here

Calico eBPF Data Plane Deep-Dive

Why Take the Lid Off if it’s Working?

Sometimes the best way to understand something is to take it apart and see how it works. This blog post will help you take the lid off your Calico eBPF data plane based Kubernetes cluster and see how the forwarding is actually happening. The bonus is, unlike home repairs, you don’t even have to try to figure out how to put it back together again!

The target audience for this post is users who are already running a cluster with the eBPF data plane, either as a proof-of-concept or in production. Therefore, we will not go through the steps to set up a cluster from scratch. If you would like to learn how to do that, the best starting point is this documentation.

In the best case and likely scenario, you will have no data plane issues in the future and this knowledge will still help you to make informed decisions about the Calico eBPF data plane and your future clusters, and how to get the best from them. Knowledge is power!

If you are unlucky enough to experience future issues, being armed with a good understanding of the underlying technologies will Continue reading

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