EIGRP is an 'advanced' distance vector routing protocol and is the evolution of IGRP. Originally EIGRP was a Cisco proprietary protocol but in 2013 Cisco announced its intention to make EIGRP on open standard. At the time of writing there is an only informational RFC: RFC7868. ...continue reading
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The world of scholarly communication is broken. Giant, corporate publishers with racketeering business practices and profit margins that exceed Apple’s treat life-saving research as a private commodity to be sold at exorbitant profits. Only around 25 per cent of the global corpus of research knowledge is ‘open access’, or accessible to the public for free and without subscription, which is a real impediment to resolving major problems, such as the United Nations’ Sustainable Continue reading
Listen, you can’t name an open networking podcast “Kernel of Truth,” and NOT have an episode dedicated to the Linux kernel! So we got two of the brightest, most enthusiastic Linux experts we know into the recording booth and let them wax poetic about the language of the data center. As I soon found out, it’s harder to get Linux fans to STOP talking about Linux that it is to get them going — but hey, that just makes my job as host a lot easier! There’s nothing like listening to knowledgeable people discuss something they’re passionate about, and that’s what we’ve got in store for you.
In this episode, I’m joined by Roopa Prabhu, leader of the kernel team at Cumulus Networks, and Shrijeet Mukherjee, Cumulus’ former VP of Engineering. Specifically, our discussion revolves around the Linux kernel and Linux community. We get into some pretty interesting questions: why Linux in the data center? What has Cumulus contributed to the kernel? How has the prolific Linux community evolved? What the heck is a “boffin”?? I’m not a fan of spoilers, (thanks for ruining Avengers: Infinity War for me, Twitter!) so I’ll let you guys tune in and find Continue reading
Wireless carriers say not being able to use Huawei equipment would “gravely impair” their ability to do business. And they can’t afford to “rip and replace” their equipment.
Cumulus NetQ is on FIRE!!
Just one year ago, Cumulus launched a new product that fundamentally changes the way organizations validate and troubleshoot not just their network, but the entire Linux ecosystem as a whole. The product was named NetQ (think Network Query). It provides deep insight on the connectivity of all network devices either now or in the past — including all switches, Linux hosts, inside Linux hosts (Containers, direct interaction with container orchestration tools like Kubernetes, VMs, Openstack environment) and any other devices running a Linux-based operating system connected to the network. No more manual box-by-box troubleshooting, no more wondering what happened last night, no more pulling cables to find where the issue was stemming from, no more finger pointing, no more human-led misconfigurations and no more frustration of not having sight past the edge of the network.
Instead, Cumulus NetQ, the agent-based technology that runs on anything Linux, changes all that. NetQ brings the efficiencies of web-scale to network operations with an algorithmic, preventive, centralized telemetry system built for the modern automated cloud network. NetQ aggregates and maintains data from across all Linux nodes in the data center in a time-series database, making the fabric-wide events, Continue reading
A recent survey from DigitalOcean found that half of developers said they did not have a strong understanding of serverless. Of those, a vast majority said they plan to research the topic within the next 12 months.
I recorded a fantastic episode of The Network Collective last night with some great friends from the industry. The topic was privacy. Originally I thought we were just going to discuss how NAT both was and wasn’t a form of privacy and how EUI-64 addressing wasn’t the end of days for people worried about being tracked. But as the show wore on, I realized a few things about privacy.
My mom is a Baby Boomer. We learn about them as a generation based on some of their characteristics, most notably their rejection of the values of their parents. One of things they hold most dear is their privacy. They grew up in a world where they could be private people. They weren’t living in a 1 or 2 room house with multiple siblings. They had the right of privacy. They could have a room all to themselves if they so chose.
Baby Boomers, like my mom, are intensely private adults. They marvel at the idea that targeted advertisements can work for them. When Amazon shows them an ad for something they just searched for they feel like it’s a form of dark magic. They also aren’t trusting Continue reading
A new survey from SDxCentral found 71 percent or respondents use public clouds — up from just 43 percent three years ago.
Hey, it's HighScalability time:
Could RAINB (Redundant Array of Independent Neanderthal ‘minibrains’) replace TPUs as the future AI core?
Do you like this sort of Stuff? Please lend me your support on Patreon. It would mean a great deal to me. And if you know anyone looking for a simple book that uses lots of pictures and lots of examples to explain the cloud, then please recommend my new book: Explain the Cloud Like I'm 10. They'll love you even more.
Apple snubs Intel's 5G modem for its next-gen iPhone; ZTE names a new CEO; Ericsson opens a 5G lab in Delhi, India; InterDigital shows a 5G control plane.
In this Network Collective Short Take, Russ White examines why our industry continually introduces complexity even though most engineers recognize that simpler solutions are usually more robust and maintainable.
The post Short Take – Complexity Sells appeared first on Network Collective.
There are plenty of public DNS resolvers. The best known was Google Public DNS i.e. 8.8.8.8 and 8.8.4.4 for IPv4 and 2001:4860:4860::8888 and 2001:4860:4860::8844 for IPv6. But there are a few other options available now, each with different policies and technical features.
Two new Public DNS resolvers were recently launched. Quad9 (launched Nov 2017) and 1dot1dot1dot1 (launched Apr 2018). We have already covered 1.1.1.1 in detail in a recent blog. So let’s talk about Quad9 (9.9.9.9).
The Global Cyber Alliance (GCA), an organization founded by a partnership of law enforcement (New York County District Attorney and City of London Police) and research (Center for Internet Security – CIS) organizations focused on combating systemic cyber risk in real, measurable ways, partnered with IBM and Packet Clearing House (PCH) to launch a Global Public Recursive DNS Resolver Service. Quad9 protects users from accessing known malicious websites, leveraging threat intelligence from multiple industry leaders; it currently blocks up to two million threats per day.
A handy little infographic on the Quad9 website helps show how it works. Essentially, you set up Quad 9 as your Continue reading
Our next installment of the Future Of Networking series brings Peter Wohlers to the podcast.
Way back in the early history of Packet Pushers, we received a presentation from Peter when he worked at Force10 as part of a Tech Field Day event. It was blunt, knowledgeable, cynical and nerd-funny.
Today Peter is VP of Engineering at a large CDN. I invited him to come on talk about the current and future state of the industry.
We discuss the effect of cloud computing on the networking industry and its impact on skills and careers, the early hype around SDN and where it stands today, how much skill you really need in coding, the rise of APIs in networking, and a passionate debate about whether different networks are actually all that unique.
TFD Bonus 3 Peter Wohlers of Force10 Presents to Tech Field Day San Jose 09/16/2010 – Packet Pushers
The post Show 397: The Future Of Networking With Peter Wohlers appeared first on Packet Pushers.
The expansion is in the form of a new 115,000-square foot building that can support up to 21 megawatts of capacity.
Current researches show that children are exposed to both increased risks and increased opportunities when accessing the Internet and using apps and social media. The UNICEF’s “Children in a Digital World” 2017 report takes a comprehensive look at the different ways digital technology affects children. It is critical that children have necessary training in digital literacy to acquire the skills to minimize risks and to confidently navigate the web to maximize their opportunities. Evidence suggests that technology has benefits where positive human forces for learning are already in place.
The University of the Republic in partnership with the Internet Society Uruguay Chapter and the financial support of the Beyond the Net Funding Programme has taken significant steps to help children and teenagers to develop digital skills in a creative and innovative way in three of the nineteen segments in which Uruguay is politically divided, Paysandú, Rivera, and Salto. Their project Flor de Ceibo Conecta2 aims to train young people from disadvantaged communities using digital resources in creative and challenging learning classes to help them improve their everyday lives and expand their chances for a better future.
María Julia Morales González, project manager and professor at the Department of Sociology and Continue reading
Internally our DDoS mitigation team is sometimes called "the packet droppers". When other teams build exciting products to do smart things with the traffic that passes through our network, we take joy in discovering novel ways of discarding it.
CC BY-SA 2.0 image by Brian Evans
Being able to quickly discard packets is very important to withstand DDoS attacks.
Dropping packets hitting our servers, as simple as it sounds, can be done on multiple layers. Each technique has its advantages and limitations. In this blog post we'll review all the techniques we tried thus far.
To illustrate the relative performance of the methods we'll show some numbers. The benchmarks are synthetic, so take the numbers with a grain of salt. We'll use one of our Intel servers, with a 10Gbps network card. The hardware details aren't too important, since the tests are prepared to show the operating system, not hardware, limitations.
Our testing setup is prepared as follows:
We transmit a large number of tiny UDP packets, reaching 14Mpps (millions packets per second).
This traffic is directed towards a single CPU on a target server.
We measure the number of packets handled by the kernel on that Continue reading
