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Registration Open for Applied Networking Research Workshop: TLS, Routing, Privacy, and More

The third Applied Networking Research Workshop will take place on Monday, 16 July, during the IETF 102 meeting in Montreal, Quebec, Canada.

The full workshop program is now available online and includes sessions on TLS, routing, Internet infrastructure, congestion control, traffic engineering, and anonymous communications. The workshop will conclude with a poster session. Accepted papers will be made available at no charge via the Association for Computing Machinery (ACM) Digital Library in due course.

The ACM, IRTF & Internet Society Applied Networking Research Workshop 2018 is an academic workshop that provides a forum for researchers, vendors, network operators and the Internet standards community to present and discuss emerging results in applied networking research. It is sponsored by ACM SIGCOMM, the IRTF, and the Internet Society. The workshop is also generously supported by Comcast and Akamai.

This academic workshop is open to all; registration is free for IETF attendees and $150 USD otherwise. Registration information is available. Student travel grants are also available and the deadline to apply for these is 15 June 2017.

If you’re already planning to be in Montreal for IETF, check out the workshop program and consider registering for the ANRW 2018 to take in these great Continue reading

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IBM launches new availability zones worldwide for hybrid enterprise clouds

CIOs and data center managers who run large hybrid clouds worldwide have a good chance of hearing IBM knock on their doors in the next few months.That's because IBM is opening 18 new "availability zones" for its public cloud across the U.S., Europe, and Asia-Pacific. An availability zone is an isolated physical location within a cloud data center that has its own separate power, cooling and networking to maximize fault tolerance, according to IBM.Along with uptime service level agreements and high-speed network connectivity, users have gotten used to accessing corporate databases wherever they reside, but proximity to cloud data centers is important. Distance to data centers can have an impact on network performance, resulting in slow uploads or downloads.To read this article in full, please click here

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IBM launches new availability zones worldwide for hybrid enterprise clouds

CIOs and data center managers who run large hybrid clouds worldwide have a good chance of hearing IBM knock on their doors in the next few months.That's because IBM is opening 18 new "availability zones" for its public cloud across the U.S., Europe, and Asia-Pacific. An availability zone is an isolated physical location within a cloud data center that has its own separate power, cooling and networking to maximize fault tolerance, according to IBM.Along with uptime service level agreements and high-speed network connectivity, users have gotten used to accessing corporate databases wherever they reside, but proximity to cloud data centers is important. Distance to data centers can have an impact on network performance, resulting in slow uploads or downloads.To read this article in full, please click here

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Cisco, HPE Invest in Cohesity’s $250 Million Series D

This brings the secondary storage and data management company’s total funding to $410 million, which Cohesity says laps all other Series D enterprise software investments in the U.S. over the last 18 months.

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Supermicro is the latest hardware vendor with a security issue

Security researchers with Eclypsium, a firm created by two former Intel executives that specializes in rooting out vulnerabilities in server firmware, have uncovered vulnerabilities affecting the firmware of Supermicro servers. Fortunately, it’s not easily exploited.The good news is these vulnerabilities can be exploited only via malicious software already running on a system. So, the challenge is to get the malicious code onto the servers in the first place. The bad news is these vulnerabilities are easily exploitable and can give malware the same effect as having physical access to this kind of system.“A physical attacker who can open the case could simply attach a hardware programmer to bypass protections. Using the attacks we have discovered, it is possible to scale powerful malware much more effectively through malicious software instead of physical access,” Eclypsium said in a blog post announcing its findings.To read this article in full, please click here

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Supermicro is the latest hardware vendor with a security issue

Security researchers with Eclypsium, a firm created by two former Intel executives that specializes in rooting out vulnerabilities in server firmware, have uncovered vulnerabilities affecting the firmware of Supermicro servers. Fortunately, it’s not easily exploited.The good news is these vulnerabilities can be exploited only via malicious software already running on a system. So, the challenge is to get the malicious code onto the servers in the first place. The bad news is these vulnerabilities are easily exploitable and can give malware the same effect as having physical access to this kind of system.“A physical attacker who can open the case could simply attach a hardware programmer to bypass protections. Using the attacks we have discovered, it is possible to scale powerful malware much more effectively through malicious software instead of physical access,” Eclypsium said in a blog post announcing its findings.To read this article in full, please click here

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Network Break 188: Microsoft Buys More Friends, Huawei is No2, Tofino plus more Politics

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Cloud Connectivity: Methods and Myths

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IoT has an obsolescence problem

The Internet of Things (IoT) is a long way from becoming a mature technology. From wearable devices to industrial sensors and consumer conveniences, IoT vendors and users are still trying to figure out what the technology does best as it grows into a $9 trillion market by 2020 (according to some estimates).And yet, IoT is somehow already faced with a huge and growing problem of obsolescence. The problem, ironically, lies in the “things” themselves.Apple Watch: A premature antique Don’t believe me? Consider the solid gold Apple Watch Edition, launched in 2015 and sold for $10,000 to as much as $17,000 a pop. A traditional watch at that price point would be expected to last decades, perhaps even generations as it turns into a family heirloom. But with the announcement of Apple Watch OS 5 at the company’s World Wide Developers Conference this week, the original version of these fancy timepieces can no longer keep up. They simply won’t run the latest version of the operating system due out this fall, and they won’t have the features of brand-new Apple Watches that cost a tiny fraction of that amount.To read this article in full, please click here

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MAC Address Learning Basics

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CLIC Québec – L’heure du déclic pour la découverte et l’accès en ligne au contenu culturel québécois

Dans un contexte de renouvellement des politiques culturelles du Québec et du Canada à l’ère du numérique, ISOC Québec a lancé le projet « CLIC Québec » grâce à la subvention Beyond The Net octroyée par l’Internet Society en juillet 2017. Ainsi, depuis bientôt un an, ISOC Québec oeuvre à travers « CLIC Québec » d’une part à sensibiliser les décideurs politiques et les utilisateurs finaux et d’autre part à identifier et valoriser les bonnes pratiques des milieux culturels en matière de diffusion, de promotion et d’accès en ligne aux contenus et produits culturels locaux.

Profitant de la tenue du 1^er Forum sur la Gouvernance d’Internet au Québec (FGI Québec), qui coïncidait avec les célébrations des 25 ans de l’Internet Society en septembre 2017, ISOC Québec a organisé un atelier intitulé Cultures en réseaux et découvrabilité des contenus locaux au cours duquel une soixantaine de participants (professionnels de la culture, experts et consultants en politiques culturelles, spécialistes des métadonnées et du Web sémantique, chercheurs/universitaires, citoyens et utilisateurs finaux) ont identifié ensemble dix pistes d’action susceptibles d’accroître la présence et le rayonnement des contenus culturels québécois sur Internet.

Pour mobiliser davantage les acteurs des différents secteurs des industries culturelles québécoises Continue reading

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What is digital twin technology? [and why it matters]

Digital twin technology has moved beyond manufacturing and into the merging worlds of the Internet of Things, artificial intelligence and data analytics.As more complex “things” become connected with the ability to produce data, having a digital equivalent gives data scientists and other IT professionals the ability to optimize deployments for peak efficiency and create other what-if scenarios.[ Click here to download a PDF bundle of five essential articles about IoT in the enterprise. ] What is a digital twin? The basic definition of a digital twin: it’s a digital representation of a physical object or system. The technology behind digital twins has expanded to include larger items such as buildings, factories and even cities, and some have said people and processes can have digital twins, expanding the concept even further.To read this article in full, please click here

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Avoid Summarization in Leaf-and-Spine Fabrics

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 ...

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Ansible Tips and Tricks

A collection of useful Ansible tips and tricks.

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Ansible Tips and Tricks

A collection of useful tips and tricks for Ansible which don't really justify a full blog post on their own. I'll keep updating this post when I come across something of value. Callbacks Convert the output of a playbook run to json. Either set the stdout_callback = json setting in...

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Switch stacking for campus design: There’s a better way

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

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Cisco IOSXRv Vagrant Libvirt Box Install

Build a Cisco IOSXRv Vagrant box for use with the libvirt provider.

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Cisco IOSXRv Vagrant Libvirt Box Install

In this post I will cover how to create a Cisco IOSXRv Vagrant box for use with the vagrant-libvirt provider as well as enabling the netconf API. This post assumes a working installation of Vagrant with the vagrant-libvirt plugin already installed. You can follow this post to get the...

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Boston, London, & NY developers: We can’t wait to meet you

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At Cisco Live!

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.