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End-to-End Segmentation with NSX SD-WAN and NSX Data Center

As you may have read earlier this month, NSX Data Center and NSX SD-WAN by VeloCloud are part of the expanded VMware NSX portfolio to enable virtual cloud networking.  A Virtual Cloud Network provides end-to-end connectivity for applications and data, whether they reside in the data center, cloud or at the edge. I wanted to follow up, and walk through an example using NSX Data Center and NSX SD-WAN of how one could build an end to end segmentation model from the data center to the branch.

NSX SD-WAN Segmentation

Beyond lowering cost and increasing agility and simplicity of branch connectivity, one of the key values provided by NSX SD-WAN by VeloCloud is enterprise segmentation, which provides isolated network segments across the entire enterprise, enabling data isolation or separation by user or line of business, support for overlapping IP addresses between VLANs and support for multiple tenants. NSX SD-WAN provides this segmentation using a VRF-like concept with simplified, per-segment topology insertion. This is accomplished by inserting a “Segment ID” into the SD-WAN Overlay header as traffic is carried from one NSX SD-WAN Edge device to another Edge. Networks on the LAN-side of an NSX SD-WAN Edge with different Continue reading

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The Week in Internet News: Artificial Intelligence Heads to the Final Frontier

Coming to a space station near you: Artificial intelligence is going to space – maybe not a space station, but a satellite – predicts an aerospace executive, quoted in SpaceNews.com. So-called geospatial intelligence, housed on satellites, will collect massive amounts of data in space and analyze it, she says.

More blockchain believers: Tech giant Oracle plans to release its own blockchain software with a platform-as-a-service product coming this month and decentralized ledger-based applications coming next month, Bloomberg notes. Oracle is working with Banco de Chile to log inter-bank transactions on a hyperledger and with the government of Nigeria to document customs and import duties on blockchain.

Does blockchain even lift? Blockchain can help improve the sports and fitness industry by allowing instructors to securely stream workouts, allowing customers to avoid that annoying trip to the gym, Forbes suggests.

Social media eyes encryption: Facebook and Twitter are both looking at encrypting some user communications, according to news reports. Facebook has voiced support for end-to-end encryption on its blog, apparently in response to concerns it was moving to weaken encryption on its WhatsApp messaging service, BGR.com notes. However, Facebook hasn’t enabled encryption by default on it Messenger service, the story Continue reading

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5 Campus Network Upgrade Planning Tips

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10 Hot IoT startups to watch

The Internet of Things (IoT) promises to make machines smarter, industrial processes more efficient and consumer devices more responsive to our needs. According to research firm Gartner, there will be more than 20 billion connected things in use worldwide by 2020.But these constrained devices often run on woefully out-of-date software that must be manually patched and upgraded; the market potential is enormous, but so are the risks.[ Click here to download a PDF bundle of five essential articles about IoT in the enterprise. ] Figuring out successful IoT business models is still a work in progress, and many are trying. We’ve looked at a large sampling of companies that have formed to work on these problems and pared the list down to 10 that warrant special attention. (See how we did it.)To read this article in full, please click here

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How we chose 10 hot IoT startups to watch

The competition to find 10 hot IoT startups to watch began with 79 contenders, 14 of which were eliminated in round 1 for not really being IoT startups or for not following directions. (Pro tip: if you try the hard-to-get strategy - making us chase you down for the information we already asked for in my query – we won’t play that game. We just hit “delete” instead.)In Round 2, visitors to our website, Startup50.com, cast votes for their three favorite startups, with votes weighted at five points for a first-place vote, two points for a second-place vote and one point for a third-place vote. Only the top 20 startups moved into the final round.To read this article in full, please click here

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What Is EVPN?

EVPN might be the next big thing in networking… or at least all the major networking vendors think so. It’s also a pretty complex technology still facing some interoperability challenges (I love to call it SIP of networking).

To make matters worse, EVPN can easily get even more confusing if you follow some convoluted designs propagated on the ‘net… and the best antidote to that is to invest time into understanding the fundamentals, and to slowly work through more complex scenarios after mastering the basics.

Read more ...

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Tracing System CPU on Debian Stretch

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Networking With Fish: YouTube Channel

Blogging, originally, was my go to and preferred method for sharing information to others – teaching, sharing, etc.  For a few corner case type things I found video (YouTube) to be a better tool for those specific items.  Recently, however, I am finding about half of my ideas of things I want to “pass on” to others… would be best (in my opinion) via video.

I’ve been trying to figure out and think about how best to have the two sharing tools – this blog site and the YouTube channel – best compliment each other.  So I have been experimenting with this.  What I have come up with that I like and works for me is the following…..

• “Standalone Video” – If the YouTube is really a “standalone” and blogging with additional text around it here doesn’t “help” communicate what I’m trying to get across… then I won’t be blogging about it here.
• “Video Series” – There will be series that will be building on each other – like the videos in the playlist “BGP Show and Tell: Beginners” and the playlist “Label Swapping Fun”.   Video series, I believe, would definitely benefit from larger big Continue reading

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Worth Reading: Cognitive Dissonance

I always wondered why it’s so hard to accept that someone might not find your preferred solution beautiful but would call it complex or even harmful (or from the other side, why someone could not possibly appreciate the beauty of your design)… and then stumbled upon this blog post by Scott Adams describing cognitive dissonance (the actual topic they’re discussing in the mentioned video doesn’t matter – look for the irrational behavior).

You might say “but we could politely agree to disagree” but unfortunately that implies that at least one of us is not fully rational due to Aumann’s Agreement Theorem.

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Link Propagation 118

Welcome to Link Propagation, a Packet Pushers newsletter. Link Propagation is included in your free membership. Each week we scour the InterWebs to find the most relevant practitioner blog posts, tech news, and product announcements. We drink from the fire hose so you can sip from a coffee cup. Blogs Foundations of MPLS: Label Switching […]

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Time To Get Back To Basics?

I’ve had some fascinating networking discussions over the past couple of weeks at Dell Technologies World, Interop, and the spring ONUG meeting. But two of them have hit on some things that I think need to be addressed in the industry. Both Russ White and Ignas Bagdonas of the IETF have come to me and talked about how they feel networking professionals have lost sight of the basics.

How Stuff Works

If you walk up to any network engineer and ask them to explain how TCP works, you will probably get a variety of answers. Some will try to explain it to you in basic terms to avoid getting too in depth. Others will swamp you with a technical discussion that would make the protocol inventors proud. But still others will just shrug their shoulders and admit they don’t really understand the protocol.

It’s a common problem when a technology gets to the point of being mature and ubiquitous. One of my favorite examples is the fuel system on an internal combustion engine. On older cars or small engines, the carburetor is responsible for creating the correct fuel and air mixture that is used to power the cylinders. Getting that Continue reading

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SeaMeWe-3 Experiences Another Cable Break

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Weekend Reads: 051118: New spectre-class vulnerabilities, scraping data, and no middle ground on encryption

A team of security researchers has reportedly discovered a total of eight new “Spectre-class” vulnerabilities in Intel CPUs, which also affect at least a small number of ARM processors and may impact AMD processor architecture as well. Dubbed Spectre-Next Generation, or Spectre-NG, the partial details of the vulnerabilities were first leaked to journalists at German computer magazine Heise, which claims that Intel has classified four of the new vulnerabilities as “high risk” and remaining four as “medium.” —Mohit Kumar @Hacker News

As cities get smarter, their appetite and access to information is also increasing. The rise of data-generating technologies has given government agencies unprecedented opportunities to harness useful, real-time information about citizens. But governments often lack dedicated expertise and resources to collect, analyze, and ultimately turn such data into actionable information, and so have turned to private-sector companies and academic researchers to get at this information. —Joseph Jerome @CDT

Despite this renewed rhetoric, most experts continue to agree that exceptional access, no matter how you implement it, weakens security. The terminology might have changed, but the essential question has not: should technology companies be forced to develop a system that inherently harms their users? The answer hasn’t changed either: Continue reading

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IDG Contributor Network: Defining network performance with Google’s 4 golden signals

You’re supposed to meet someone for coffee. If they’re three minutes late, no problem, but if they’re thirty minutes late, its rude. Was the change from “no problem” to “rude” a straight line, or were there steps of increasing rudeness? Do we care why? A good reason certainly increases our tolerance. Someone who is always late reduces it.Network performance follows many of the same dynamics. We used to talk about outages, but they have become less frequent. “Slow” is the new “out.” But how slow is slow? Do we try to understand the user experience and adjust our performance monitoring to reflect it? Or is the only practical answer to just wait until someone complains?To read this article in full, please click here

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IDG Contributor Network: Defining network performance with Google’s 4 golden signals

You’re supposed to meet someone for coffee. If they’re three minutes late, no problem, but if they’re thirty minutes late, its rude. Was the change from “no problem” to “rude” a straight line, or were there steps of increasing rudeness? Do we care why? A good reason certainly increases our tolerance. Someone who is always late reduces it.Network performance follows many of the same dynamics. We used to talk about outages, but they have become less frequent. “Slow” is the new “out.” But how slow is slow? Do we try to understand the user experience and adjust our performance monitoring to reflect it? Or is the only practical answer to just wait until someone complains?To read this article in full, please click here

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Project Jengo Celebrates One Year Anniversary by Releasing Prior Art

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Symantec Cops to Internal Investigation, Sends Stock Crashing 35%

The mysterious probe isn’t related to a breach or any security concern about its products.

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SDxCentral’s Weekly Roundup — May 11, 2018

Oracle spreads AI across the cloud; Nokia makes successful 5G call in France; Cisco completes $270 million purchase of AI company.

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How to Manage Cloud Expenses With a Solution You Probably Already Have

Over the years, Telecom Expense Management has helped organizations optimize and gain visibility into usage trends, expenses, and financial allocation — and now it can address a broader set of IT and cloud services.

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You can Fly!