Networking Archives - Page 929 of 3455

Ericsson, Nokia, Samsung Hype Open Virtualization

Ericsson, Nokia, and Samsung have much to lose if the RAN space flattens to a point where their...

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Balancing patient security with healthcare innovation | TECH(talk)

Healthcare organizations are one of the most targeted verticals when it comes to cyberattacks. While those organizations must work to secure patients' sensitive data, it can also be helpful to analyze that data to improve patient outcomes. Jason James, CIO of Net Health, joins Juliet to discuss why attackers target healthcare organizations, Google's Project Nightingale and what it means for a tech giant to have access to the medical data of millions of people.

Google, Microsoft Azure Beat AWS in Cloud Performance

The variance in performance hasn't shaken Amazon's grip on the market. AWS remains the largest...

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VMware Expands Nokia Test Integration

The increased interoperability testing will include Nokia’s virtual network functions and...

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Cisco Sinks on Rocky Q1, Dour Q2 Revenue Outlook

Service provider revenue dropped 13% year over year in Q1, while Cisco’s enterprise business...

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AWS Launches Data Exchange, Simplifies Third-Party Sharing

The cloud giant is pitching the platform as a way to help customers find, subscribe to, and use...

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BrandPost: Addressing Scalability Challenges with SD-WANs

It’s always difficult to tell how fast your business will grow, and hence how quickly you’ll need to scale your network and other IT infrastructure. When it comes to software-defined wide-area networks (SD-WAN), the scalability issue is particularly thorny because of the myriad factors that play into the equation.Some will tell you scaling an SD-WAN is a simple matter of adding appliances, but that is far from the case, says David Greenfield, Secure Networking Evangelist with Cato Networks. Cato provides a cloud-based SD-WAN service, so Greenfield is well-versed in the factors that make SD-WAN scalability so challenging. In this post, we’ll examine a handful of them.To read this article in full, please click here

Samsung Taps HPE, Openet for Multi-Vendor 5G SA Core Test

A 5G SA core will allow operators to offer 5G-specific services, including network slicing, mobile...

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Cray to license Fujitsu Arm processor for supercomputers

Cray says it will be the first supercomputer vendor to license Fujitsu’s A64FX Arm-based processor with high-bandwidth memory (HBM) for exascale computing.Under the agreement, Cray – now a part of HPE – is developing the first-ever commercial supercomputer powered by the A64FX processor, with initial customers being the usual suspects in HPC: Los Alamos National Laboratory, Oak Ridge National Laboratory, RIKEN, Stony Brook University, and University of Bristol.[Get regularly scheduled insights by signing up for Network World newsletters.] As part of this new partnership, Cray and Fujitsu will explore engineering collaboration, co-development, and joint go-to-market to meet customer demand in the supercomputing space. Cray will also bring its Cray Programming Environment (CPE) for Arm processors over to the A64FX to optimize applications and take full advantage of SVE and HBM2.To read this article in full, please click here

Cray to license Fujitsu Arm processor for supercomputers

IoT Security Policy Platform Wants to Raise the Bar On Global IoT Security

By next year, five Internet of Things (IoT) devices are projected to be in use for every person on the planet.

IoT devices offer endless opportunities to improve productivity, economic growth, and quality of life. Think smart cities, self-driving cars, and the ways connected medical devices can monitor our health. The potential growth of IoT is virtually infinite.

But with opportunity comes a significant amount of risk. As much as we’d like to trust manufacturers to make sure burglars can’t watch our homes through data from an automated vacuum, many new devices lack even basic security features. And thousands of new devices are coming online each year without commitment to basic measures such as using unique passwords, encrypting our data, or updating software to address vulnerabilities.

To help people and businesses around the world prepare, a dedicated group is rising to the challenge of securing the Internet of Things though cooperation across borders and sectors.

They are government agencies, non-governmental organizations, and other organizations and experts working on IoT security joined together to form the IoT Security Policy Platform. We are proud to say the Internet Society is amongst them too. Together we’ve been discussing and sharing best practices and Continue reading

BrandPost: SD-WAN as MPLS Replacement: Why the Internet Isn’t Enough

As companies turn to SD-WAN services, they’re often looking to migrate away from expensive MPLS services at the same time and employ Internet services instead. But the public Internet doesn’t provide the kind of predictable performance that enterprises need, and it can introduce unacceptable security risks.A sound alternative is a global, privately managed cloud-based network that can provide the consistent performance and low latency that enterprises demand, but at a fraction of the cost of MPLS – and with security built in. To get a sense for the requirements companies should look for in a managed cloud backbone to make for a successful SD-WAN migration, I spoke with Dave Greenfield, Secure Networking Evangelist with Cato Networks, which has built just such a backbone.To read this article in full, please click here

IPv6 Buzz 039: Bringing IPv6 Into Enterprise Wireless

This week's IPv6 Buzz discusses getting IPv6 into enterprise wireless environments. We discuss what proper vendor support for v6 looks like, evaluate the impact of a lack of DHCPv6 support in Android, why running dual stack is more work than a clean cutover, and more. Our guest is Joe Neville, a technical consultant at HPE Aruba.

IPv6 Buzz 039: Bringing IPv6 Into Enterprise Wireless

The post IPv6 Buzz 039: Bringing IPv6 Into Enterprise Wireless appeared first on Packet Pushers.

BrandPost: The Challenges of SD-WAN Network Planning in an Era of Unknowns

As interest in software-defined wide-area networks (SD-WAN) continues to rise, enterprises are coming face to face with the challenge of planning an SD-WAN migration that will serve the company today and into the future, forcing them to deal with a number of unknowns.The uncertainties include how fast the company will grow, whether new sites will be required, and what revenue and cash flow will look like. Existing and emerging security threats must be considered as well. About the only certainty is that cloud services will continually factor into the equation.Challenges inherent in network future-proofingNetwork planning in this kind of environment requires a degree of future-proofing, meaning implementing a network that is comprehensive and agile enough to accommodate new requirements without compromising on service quality or total cost of ownership. But doing so comes with considerable challenges.To read this article in full, please click here

DMVPN Point-to-Point GRE and mGRE

DMVPN spokes can use either point-to-point GRE tunnels or multipoint GRE tunnel interface. Recently, I received a question regarding DMVPN.

In fact, the Reader asked me two questions: When is GRE used in network design? When is mGRE used in network design?

Answering the aforementioned questions are the basics that you must know if you are planning to design DMVPN network.

As you might have known, DMVPN is a hub, spoke type of topology. And the most useful, important functionality of DMVPN is that it provides excellent scalability by reducing the number of tunnel interfaces configured on the hub and spokes.

I mentioned the DMVPN phases in one of my articles. Because of that, I will not explain them here again. However, if you don’t understand the meaning of DMVPN phases, I would recommend that you peruse the article on DMVPN basics before reading this article.

Point-to-Point GRE interface is used, only in Phase 1, on the spokes.

In all the Phases, mGRE interface type is always used on the hubs.

In Phase 2 and Phase 3 of DMVPN implementation, spokes also use mGRE (not multicast GRE, but multipoint GRE) interface types.

Compared to the point-to-point GRE interface, mGRE provides Continue reading

2017 CCDE Exam Dates!

2017 CCDE Exam dates has been announced.There are four CCDE exam every year. More precisely there are four CCDE Practical/Lab exam every year. There is no limitation for the CCDE Written exam.

You can join CCDE Written exam anytime in any Pearson Vue Center. It is not only 4 times in a year.

CCDE Practical exam is not only in the Cisco Office anymore, but it is in the Professional Pearson Vue Locations. There are 275 of them and unfortunatelly, not every country has PPC (Professional PearsonVue Center)

If you are in Middle East, India, Turkey, Greece and Europe would be nice location.

I attended and passed the exam in Greece and Athens is one of the most beautiful city guys I definitely recommend it.

Below is the 2017 CCDE Practical/Lab exam dates and I wish Good Luck for everyone and definitely recommend my Self Paced CCDE Training or Instructor Led CCDE Training.

Nothing Should Stop You!

As many of you know, I was born in Turkey. And unfortunately, the educational system of that country is very weak. And guess what: If you can’t afford to go to private school in Turkey, you may not be able to learn English in the government school.

However, if you are a very diligent student, you may learn the basics of writing or speaking English. I have decided not to allow my proofreader to edit this post. My reason is simple. I want you to notice that I am still struggling with English. But that’s okay. It’s a learning curve. So, nothing should stop you !|

My aim of writing this post is to share some of my thoughts with you. And I know many people will read this and I hope it will inspire some of you.

I worked as a network operation center engineer, presales engineer and consultant while I was in Turkey. Fortunately, I joined and managed many design projects during that time. After that, I moved to other countries with the aim of sharing my knowledge with others and getting some money of course

At this point, you might be having this thought: “With your weak Continue reading

Is Cisco CCDE Exam Vendor Neutral?

Is Cisco CCDE Exam really vendor neutral?.Recently one of my CCDE Bootcamp students asked me this question. He heard that DMVPN might come in the exam.

In the beginning of my each CCDE class, I introduce the topics which will most likely asked in the CCDE Practical exam. Cisco claims that CCDE Practical exam is vendor neutral network design exam.

And I totally agree. Actually not only DMVPN, but also HSRP, GLBP, EIGRP, GETVPN might come in the exam and you should know the details of these technologies from the design point of view.

All these technologies are Cisco specific, why then it is vendor neutral ?

Reason is simple but not maybe obvious for those who don’t know the details of the exam.

These are very commonly deployed technologies in the networks. Almost everyone learned HSRP when they studied first hop redundancy protocols, I believe, right ?

Or, can be any decent network engineer who don’t know EIGRP ?

If you think that you know routing protocols, or you think that you are familiar with them, you have to know it.

But it is not about that they are commonly used technologies.

They are actually derived from the very well known Continue reading

Mobile Broadband – Trending Technologies

For me and for most of Mobile broadband professionals, we are used to meeting the Telco Vendors such as Ericsson, Huawei, Cisco, Nokia, etc. It was a mind-shift for me personally when I started to meet RedHat, Mirantis, & VMware as a part of the NFV talks and I was really surprised that a company like RedHat is a member of the European Telecommunications Standards Institute (ETSI) with more focus on the Mobile Broadband Evolution participating in Mobile Edge Computing (MEC) Work Group.

To have a great understanding of SP Networks, you can check my new published “Service Provider Networks Design and Architecture Perspective” Book.

It is obvious nowadays that the borders between different technology domains are fading in the sense that Networks are shifting into software-defined Networks with new abstraction layers realizing network convergence.

With this post being the last one, I chose to talk a little bit about some trending and future Mobile Broadband technologies with the goal of having an overview of the Technology Roadmap.

NFV (Network Functions Virtualization)

NFV offers a way to design, deploy, & manage Network Services via decoupling the Network Functions from proprietary Hardware enabling them to run in Continue reading

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