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Category Archives for "Networking"

Nutanix and Plexxi – An Affinity to Converge

nutanix-logo

Nutanix has been lighting the hyperconverged world on fire as of late. Strong sales led to a big IPO for their stock. They are in a lot of conversations about using their solution in place of large traditional virtualization offerings that include things like blade servers or big boxes. And even coming off the recent Nutanix .NEXT conference there were some big announcements in the networking arena to help them complete their total solution. However, I think Nutanix is missing a big opportunity that’s right in front of them.

I think it’s time for Nutanix to buy Plexxi.

Software Says

If you look at the Nutanix announcements around networking from .NEXT, they look very familiar to anyone in the server space. The highlights include service chaining, microsegmentation, and monitoring all accessible through an API. If this sounds an awful lot like VMware NSX, Cisco ACI, or any one of a number of new networking companies then you are in the right mode of thinking as far as Nutanix is concerned.

SDN in the server space is all about overlay networking. Segmentation of flows and service chaining are the reason why security is so hard to do in the networking space Continue reading

ZoneSavvy taps big data to help SMBs find best sites for businesses

Location, location, location: As the old joke goes, those are the three keys to business success. Now, with big data analysis, corporations can be smarter than ever before about where to open up new offices or businesses.But what if you run a mom-and-pop shop, or you're dreaming of quitting your corporate job and opening a boutique? Even medium-size businesses do not have the money to spend on the sort of systems and analysis teams that corporate behemoths use to locate new businesses.This is where ZoneSavvy, a new website created by software engineer Mike Wertheim, could help. The site is straightforward: You enter a business type, the ZIP code of the general area where you want to locate the business, and the distance from that ZIP code you are willing to consider. ZoneSavvy then gives you suggestions for which nearby neighborhoods would be the best locations for your business.To read this article in full or to leave a comment, please click here

10 most difficult IT jobs for employers to fill

Most difficult IT jobs for employers to fillImage by Thinkstock The breakneck pace of technological innovation in an era of digital transformation has made it difficult for companies to find and land talent with the right mix of cutting-edge skills and experience. But even harder to find are candidates with the soft skills and leadership potential to match their technical savvy, says Matt Sigelman, CEO of labor market analytics firm Burning Glass. "In IT, most mid- to senior-level folks currently in the market have advanced to where they are because of their technical skills, not based on their management and soft skills. What that means is that certain roles are incredibly hard to fill, as they need both the technical savvy, as well as domain- and industry-specific expertise and leadership skills. Whenever you're asking a candidate to wear two different hats -- in this case, technical and management -- you're inherently making these roles harder to fill as the pool of qualified candidates becomes smaller," Sigelman says. Here, based on Burning Glass's research into more than 40,000 job posting websites from August 2015 to September 2016, and ranked by the number of days it takes to fill these roles, Continue reading

Nokia uses analytics, machine learning to help mobile providers

Wireless carrier competition in the U.S. is white hot — analysts increasingly see signs of wireless market saturation, meaning that growth is most likely going to come from competitors. Of the four major U.S. carriers, T-Mobile USA has led the way, slashing prices, killing the two-year contract and daring its competitors to follow suit.As competition intensifies, Finnish mobile technology provider Nokia believes customer service will emerge as an even more important key differentiator, and analytics and machine learning will take customer service to the next level in the U.S. and around the globe.In 2011, when AT&T announced its intention to acquire T-Mobile USA from Deutsche Telekom, it looked like the wireless market in the U.S. was well on its way to becoming a duopoly. Verizon Wireless and AT&T already held the lion's share of customers between them, and they both held licenses to the majority of wireless spectrum too. But then the Antitrust Division of the U.S. Department of Justice blocked the proposed $39 billion acquisition.To read this article in full or to leave a comment, please click here

Voting security experts call on Clinton to demand recount

Hillary Clinton, the apparent loser in the recent U.S. presidential race, should ask for voting recounts in three states, a group of voting security experts and election lawyers have said, and new results could swing the outcome of the election.There are outstanding questions about voting results in Pennsylvania, Wisconsin, and Michigan, where the initial counts have Clinton losing by 1.2 percent or less, the group has told her campaign.The group has so far given no concrete evidence of voting irregularities but is planning to release a report. One news report suggested significant differences in the margins of victory for Trump in Wisconsin in counties using electronic voting machines, compared to counties using paper ballots, but the group has not confirmed those concerns.To read this article in full or to leave a comment, please click here

Voting security experts call on Clinton to demand recount

Hillary Clinton, the apparent loser in the recent U.S. presidential race, should ask for voting recounts in three states, a group of voting security experts and election lawyers have said, and new results could swing the outcome of the election.There are outstanding questions about voting results in Pennsylvania, Wisconsin, and Michigan, where the initial counts have Clinton losing by 1.2 percent or less, the group has told her campaign.The group has so far given no concrete evidence of voting irregularities but is planning to release a report. One news report suggested significant differences in the margins of victory for Trump in Wisconsin in counties using electronic voting machines, compared to counties using paper ballots, but the group has not confirmed those concerns.To read this article in full or to leave a comment, please click here

Worth Reading: Vehicle CAN denial of service

Contemporary vehicles are getting equipped with an increasing number of Electronic Control Units (ECUs) and wireless connectivities. Although these have enhanced vehicle safety and efficiency, they are accompanied with new vulnerabilities. In this paper, we unveil a new important vulnerability applicable to several in-vehicle networks including Control Area Network (CAN), the de facto standard in-vehicle network protocol. Specifically, we propose a new type of Denial-of-Service (DoS), called the busoff attack, which exploits the error-handling scheme of in-vehicle networks to disconnect or shut down good/uncompromised ECUs. —University of Michigan Research

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The post Worth Reading: Vehicle CAN denial of service appeared first on 'net work.

Cisco sees Wi-Fi market in transition to controller-less solutions

Last week Cisco held its quarterly call for investors. These calls are done to update the financial community on the state of Cisco’s business and discuss other trends that will impact the company in the near future. Because of Cisco’s massive size and dominant market share, the entire industry often looks to Cisco commentary to validate market transitions. One such transition was called out during the Q&A portion by Cisco CEO Chuck Robbins. + Also on Network World: Cisco CEO Robbins: Wait til you see what’s in our innovation pipeline + The wireless business at Cisco is currently going through an evolutionary change. The overall business was down 2 percent due to softness with E-rate funding and declines in traditional Wi-Fi controllers. However, this was offset by strong growth with Cisco’s cloud-managed solution, Meraki. To read this article in full or to leave a comment, please click here

These 7 people passed the CCDE Practical exam with my training

I am glad to announce that 7 of the attendees passed the CCDE Practical Lab exam in November 17, 2016 after attending my CCDE Training Program and got their CCDE numbers.   Chintan Sutaria – CCDE 2016::26 Mazin Ahsan – CCDE 2016::30 Tahir Munir – CCDE 2016::31 Michael Zsiga –  CCDE 2016::32 Felix Nkansah -CCCDE 2016::36 Andre Dufour  – CCDE […]

The post These 7 people passed the CCDE Practical exam with my training appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

48% off Satechi Portable Rechargeable Smartphone Speaker Stand – Deal Alert

The iFit-1 from Satechi is a sliding stand for your phone that also contains a high-fidelity speaker, so you can browse the internet, play games, or watch movies with louder, richer sound. It also features a generous 6 hour rechargeable battery. It averages 4 out of 5 stars on Amazon from 670 people (read reviews). A few reviewers have pointed out that this makes a good gift for the technically un-savvy, since there's no fumbling with a Bluetooth connection. Just connect it to the phone's headphone/audio jack. The iFit-1's typical list price of $24.99 is currently reduced 48% to just $12.99. See it now on Amazon.To read this article in full or to leave a comment, please click here

How to make singing tree faces for holiday light show

Last year I tried out my first holiday light display using a Light-O-Rama controller. I was sure a person could have a holiday light show that delights people of all ages and still keep their privacy intact since people wouldn’t be peering into their houses. That part was true; it’s a different story when two different TV crews show up in vans a couple different times and want interviews. Fortunately, declining is an option that doesn’t seem to impact traffic backing up to watch the lights dance to music they can hear via FM from the warmth of their vehicles.To read this article in full or to leave a comment, please click here

How to make singing tree faces for holiday light show

Last year I tried out my first holiday light display using a Light-O-Rama controller. I was sure a person could have a holiday light show that delights people of all ages and still keep their privacy intact since people wouldn’t be peering into their houses. That part was true; it’s a different story when two different TV crews show up in vans a couple different times and want interviews. Fortunately, declining is an option that doesn’t seem to impact traffic backing up to watch the lights dance to music they can hear via FM from the warmth of their vehicles.To read this article in full or to leave a comment, please click here

38% off X Rocker 51259 Pro H3 4.1 Audio Gaming Chair, Wireless – Deal Alert

With the X Rocker Pro H3 4.1 Wireless Audio Gaming Chair you can not only hear your music but actually feel it. It features four speakers, sub-woofers with Audio Force Modulation Technology, vibration motors that sync to the bass and intensify the full-body sensation, and a wireless audio transmitter/receiver combo. It currently averages 4 out of 5 stars from nearly 550 reviewers (see reviews). Its list price of $250 has been reduced 38% to $155. See it now on Amazon.To read this article in full or to leave a comment, please click here

Book Review :: Juniper QFX5100 Series: A Comprehensive Guide to Building Next-Generation Networks

Juniper QFX5100 Series: A Comprehensive Guide to Building Next-Generation Networks
by Douglas Richard Hanks, Jr.
Paperback: 3 pages10
Publisher: O’Reilly Media
ISBN-13: 978-1491949573

5stars

Much more than just a book about the QFX5100

This was an easy weekend read, and quite honestly I’d never thought I’d say this about a technical book but I literally could not put the book down. Doug has amassed a wealth of great information, approaching the subject matter from a standpoint of brevity, applying the Goldilocks principle — not too much and not too little — but rather just the right amount of information.

Do not be confused by the title — this is not JUST a book about the QFX5100 series. As the subtitle might indicate, it’s more of a book on building next-gen networks, specifically Data Center networks, and serves as a fantastic primer on the various protocols and technologies that are becoming the mainstay of this world.

As the networking world works overtime to catch up to the virtualization offered by storage and compute resources, the reader tasked with creating the network of tomorrow will appreciate the coverage of building various types of fabrics of varying dimensions — whether it’s coverage of Juniper’s Virtual Chassis Fabric for building small to Continue reading

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