Top 5 moments from Networking Field Day 2017
Did you miss Cumulus Networks’ session at Networking Field Day 2017 on February 26th? Or maybe you tuned in, and you want to reminisce on the best moments? Don’t worry, we’ve got you covered! Check out our top five favorite highlights from Technical Marketing Engineer Pete Lumbis’ presentation about managing EVPN/VXLAN. (You can also watch the whole session here, if you’d prefer to hear it from the man himself. Prepare for an intelligent demonstration peppered with some good laughs!)
5) The Legos of Linux
It makes sense to start with the basics, and that’s exactly how we begin the presentation. In a daring move, Pete decides to illustrate Cumulus Linux’s capabilities sans-Powerpoint, and whiteboards the architecture of a Mellanox switch running our OS.
One of the great things about Cumulus technology is that it’s all based in Linux. So, any configurations you would make on a Linux device are exactly the same on Cumulus Linux. Simple, right? That’s exactly our goal — allowing customers to easily customize their network as they see fit with basic building blocks. As Pete describes it, building the network is like “taking those Lego pieces and turning them into Saturn V.” Continue reading
Why CASB Is the Fastest Growing Security Category
Symantec, Skyhigh Networks (recently acquired by McAfee), and Netskope are leading vendors.
Portworx Delivers STORK as an Open Source Stateful Storage Project
The company hopes to attract partners and customers on its way into the CNCF.
A Behind the Scenes Look at Mobile Ad Fraud
How did I use over a gigabyte of mobile data in a single day? Why is my phone as warm as a hot plate? If you have ever asked yourself either of these questions, you might be the victim of a malicious application that is using your device and consuming your mobile bandwidth to facilitate ad fraud. We have recently identified a large population of apps being distributed from the Google Play Store that support this behavior. These apps are installed on devices on a majority of the major cell phone carriers around the world. These carriers operate in the US (AT&T, Verizon, Sprint, and T-Mobile), Europe (KPN, Vodafone, Ziggo, Sky, Virgin, Talk Talk, BT, O2, and T-Mobile), and the Asia Pacific region (Optus, Telstra, iinet, and others) [Note: Mobile providers and Google have been notified]. Just this morning, before this article was published, Buzzfeed broke another ad fraud story.
The Mechanics of the Grift
Online advertising consists of a complex ecosystem of ad buyers, sellers, exchanges, and data providers. Operators of websites and application authors have available space in their content layout and interaction in the user experience that can be integrated to include various forms of Continue reading
Show 375: Design & Build 14: DDoS Mitigation
Today's entry the Packet Pushers' Design & Build series focuses on DDoS mitigation strategies. Our guests are Rich Groves and Eric Chou. The post Show 375: Design & Build 14: DDoS Mitigation appeared first on Packet Pushers.
Weekends Reads 020218: GDPR, taxes, and security
Security is always changing and failure always exists. This toxic scenario requires a fresh perspective on how we think about operational security. We must understand that we are often the primary cause of our own security flaws. The industry typically looks at cybersecurity and failure in isolation or as separate matters. We believe that our lack of insight and operational Continue reading
OpenSwitch
This article describes how to enable industry standard sFlow telemetry using the open source Host sFlow agent. The Host sFlow agent uses Control Plane Services (CPS) to configure sFlow instrumentation in the hardware and gather metrics. CPS in turn uses the Open Compute Project (OCP) Switch Abstraction Interface (SAI) as a vendor independent method of configuring the hardware. Hardware support for sFlow is a standard feature supported by Network Processing Unit (NPU) vendors (Barefoot, Broadcom, Cavium, Innovium, Intel, Marvell, Mellanox, etc.) and vendor neutral sFlow configuration is part of the SAI.
Installing and configuring Host sFlow agent
Installing the software is simple. Log into the switch and type the following commands:wget --no-check-certificate https://github.com/sflow/host-sflow/releases/download/v2.0.17-1/hsflowd-opx_2.0.17-1_amd64.debThe sFlow agent requires very little configuration, automatically monitoring all switch ports using the following default settings:
sudo dpkg -i hsflowd-opx_2.0.17-1_amd64.deb
| Link Speed | Sampling Rate | Polling Continue reading |
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Live Training at Safari Books: How the Internet Really Works
I will be teaching my first live training course at Safari Books Online on the 9th of March, starting at noon ET: How the Internet Really Works. It’s hard to describe the level and background for this training, as it will be all over the place; this is a bit of an experiment in this realm. The course description is—
This live training will provide an overview of the systems, providers, and standards bodies important to the operation of the global Internet, including the Domain Name System (DNS), the routing and transport systems, standards bodies, and registrars. For DNS, the process of a query will be considered in some detail, who pays for each server used in the resolution process, and tools engineers can use to interact DNS. For routing and transport, the role of each kind of provider will be considered, along with how they make money to cover their costs, and how engineers can interact with the global routing table (the Default Free Zone, of DFZ). Finally, registrars and standards bodies will be considered, including their organizational structure, how they generate revenue, and how to find their standards.
Sprint Joins 5G Race by Promising Nationwide Network in 2019
Sprint is increasing its capex by $1 billion for the quarter to pay for its network upgrades.
Is ACI Coming For The CLI?
I’m soon to depart from Cisco Live Barcelona. It’s been a long week of fun presentations. While I’m going to avoid using the words intent and context in this post, there is one thing I saw repeatedly that grabbed my attention. ACI is eating Cisco’s world. And it’s coming for something else very soon.
Devourer Of Interfaces
Application-Centric Infrastructure has been out for a while and it’s meeting with relative success in the data center. It’s going up against VMware NSX and winning in a fair number of deals. For every person that I talk to that can’t stand it I hear from someone gushing about it. ACI is making headway as the tip of the spear when it comes to Cisco’s software-based networking architecture.
Don’t believe me? Check out some of the sessions from Cisco Live this year. Especially the Software-Defined Access and DNA Assurance ones. You’re going to hear context and intent a lot, as those are the key words for this new strategy. You know what else you’re going to hear a lot?
Contract. Endpoint Group (EPG). Policy.
If you’re familiar with ACI, you know what those words mean. You see the parallels between the data center Continue reading
SDxCentral’s Weekly Roundup — February 2, 2018
AT&T to release its dNOS to Linux; Cisco buys BroadSoft; Aryaka and Radware team up.
AT&T Data Center Assets on the Block, Report Says
Maybe Kenny Rogers was right in stating you gotta "know when to fold 'em."
Microsoft Azure Revenues Grew 98% in Latest Quarter
AWS and Google also saw big cloud revenue gains.
This History Of Networking, from The Network Collective
I mentioned The Network Collective previously when I responded to the very first episode of the videocast/podcast (what TWiT would call a netcast
). Since then the three founders and co-hosts (Jordan, Eyvonne and Phil) have published an impressive 20 community roundtable episodes and have somehow also found time to launch a History of Networking
series co-hosted by Russ White (yes, that Russ White).
History Of Networking
I’m a bit of a nerd when it comes to computer history, and I love reading books that give the inside story about the birth of the personal computer, the story of Silicon Valley, the rise and fall of technology companies and so on. However, the history of networking is nowhere near as well covered, which is a real shame. Thankfully, The Network Collective are filling that gap handsomely with a list of guests so far that blows my mind. For example:
Paul Vixie
If you’ve ever heard of Vixie cron, BIND DNS, DNSSEC, the Internet Software Consortium (ISC), you’ve found things Mr Vixie has had his hands all over. It’s fascinating to hear him talking about the history of DNS adoption, and his role in maintaining BIND in a nascent Continue reading