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Category Archives for "Networking"

5 ways the IoT must improve to achieve enterprise success

If you think you know the problems facing the Internet of Things (IoT), a new Deloitte report, Five vectors of progress in the Internet of Things, offers a great chance to check your assumptions against the IoT experts.Despite the fancy-pants “vectors of progress” language, the report’s authors — David Schatsky, Jonathan Camhi, and Sourabh Bumb — basically lay out the IoT’s chief technical challenges and then look at what’s being done to address them. Some of the five are relatively well-known, but others may surprise you.To read this article in full, please click here

What’s in a Mutable Field? — We Can’t Tell You

In conversations I often hear people using the word “mutable”. Typically it would be something similar to the following.

The IP TTL is a mutable field and decreases as it traverses a router.

If we look up the word “mutable” we find that it is something that is likely to change.

So the IP TTL is a great example of a mutable field. That value is expected to decrease at each hop throughout the network.

By contrast, IP Source Address, Destination Address, and Protocol would be immutable because it is not normal for those to change. They should stay constant from source to destination.

I know someone might consider something like NAT or PAT to change some of these attributes. While that is true, I still would not consider those mutable fields.

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Vagrant + vQFX + Ansible = EVPN-VXLAN Fabric

Did you know that Juniper vQFX images are available in Vagrant Cloud? There is vQFX RE image and vQFX PFE one. You can use only RE image to build simple topologies, or pair every RE with PFE to use more complex protocols. There is also a bunch of examples in Juniper’s github repository.

What is Vagrant? Let me quote official website: “Vagrant is a tool for building and managing virtual machine environments in a single workflow. Vagrant gives you a disposable environment and consistent workflow for developing and testing infrastructure management scripts.” I hope you already knew that. And I also hope there is no need to present Ansible.

I played with this stuff a little bit and created a couple of new examples using full vQFX option (e.g. RE+PFE for every box) – IP fabric and EVPN-VXLAN fabric.

This is really easy way if you want to get yourself familiar with configuration of IP fabric and EVPN-VXLAN on QFX (and some Ansible as well), but don’t want to spend time figuring out how to set everything up in GNS3 or EVE-NG.

Just a few simple steps:

We’ve Added A New Juniper Security Technology Course To Our Video Library!

Our Newest Juniper course, Juniper Security (JSEC) Technology is now live! Whether you’re preparing for your Juniper Specialist Exam, or just looking to brush up on Juniper SRX Devices, this course is an excellent resource for IT security professionals. Tune in for 3 hours of instruction with Juniper expert Mauricio Spinelli by logging into your members account here.



About The Course:

In this course you will learn about the Junos Security platform and be prepared for the Juniper Specialist exam (JN0-332). You will learn about the benefits, architecture and how to deploy environments with Juniper SRX devices. This is the introduction of Security platform of Juniper Networks, after complete this course you will be ready to deploy, manage and troubleshooting Juniper SRX devices.

Weekend Reads 062918

The Internet and related digital systems that the United States did so much to create have effectuated and symbolized US military, economic, and cultural power for decades. The question raised by this essay is whether these systems, like the Roman Empire’s roads, will come to be seen as a platform that accelerated US decline. @The Hoover Institute

Article 13 reverses one of the key legal doctrines that allowed the Internet to thrive: the idea that computer networks are not “publishers” and are therefore not liable for the actions or statements of their users. This means that you can sue an individual user for libel or copyright infringement, but not the e-mail service or bulletin board or social media platform on which he did it. This immunity made it possible for computer networks to open a floodgate of content produced by independent individuals, without requiring service providers to serve as editors or moderators. —Robert Tracinski @The Federalist

The U.S. Supreme Court today ruled that the government needs to obtain a court-ordered warrant to gather location data on mobile device users. The decision is a major development for privacy rights, but experts say it may have limited bearing on the selling Continue reading

Show 396: Ignition Launch And The State Of The Industry

Today on the Weekly Show, the Packet Pushers officially launch Ignition, our new membership site.

Ignition offers exclusive content to help you develop as a networking and IT professional, including blogs, white papers, videos, and e-books. Over time we’ll add in-depth technical courses and other materials to help you advance your career.

You can join for free and get limited access to the site (plus Link Propagation and the Human Infrastructure Magazine), or get a premium membership for $99 a year for full access.

We also spend some time reviewing the state of the networking industry, including a look at the true drivers of automation, whether Intent-Based Networking is a real thing, why legacy networking vendors are flocking to multicloud as a strategy, the trend of AI-washing, and whether SD-WAN is going to kill private circuits.

Sponsor: Cumulus Networks

Cumulus Networks presents Networking with S.O.U.L – Simple, Open, Untethered Linux. These 4 tenants enable modern, agile networks be built to support the new demands of the business. Save an average of 45% on CapEx and approximately 74% on OpenEx by adopting these SOULful networking solutions. Learn how to leverage the top 5 automation tips and tricks Continue reading

Tale From The Trenches: The Debug Of Damocles

My good friend and colleague Rich Stroffolino (@MrAnthropology) is collecting Tales from the Trenches about times when we did things that we didn’t expect to cause problems. I wanted to share one of my own here about the time I knocked a school offline with a debug command.

I Got Your Number

The setup for this is pretty simple. I was deploying a CallManager setup for a multi-site school system deployment. I was using local gateways at every site to hook up fax lines and fire alarms with FXS/FXO ports for those systems to dial out. Everything else got backhauled to a voice gateway at the high school with a PRI running MGCP.

I was trying to figure out why the station IDs that were being send by the sites weren’t going out over caller ID. Everything was showing up as the high school number. I needed to figure out what was being sent. I was at the middle school location across town and trying to debug via telnet. I logged into the router and figured I would make a change, dial my cell phone from the VoIP phone next to me, and see what happened. Simple troubleshooting, Continue reading

Announcing the Internet Society’s New President and Chief Executive Officer

Today is an exciting day for the Internet Society. It gives me great pleasure to announce, on behalf of the Internet Society’s Board of Trustees, that Andrew Sullivan has been selected as the Internet Society’s new President and Chief Executive Officer (CEO). He will formally take up his position on September 1, 2018.

This selection now successfully concludes the CEO search process we began last November.

The CEO selection process involved extensive work on the part of the Board but gave us much food for thought. We received a wealth of extremely impressive applications from more than a hundred internal and external candidates covering a huge range of talent and experience. We had some thought-provoking conversations as part of the process and I would like to express my sincere appreciation to everybody who applied for the position.

I believe Andrew’s success in being selected for this crucial role represents an enormous opportunity for the Internet Society and the global Internet.

Andrew brings a wealth of Internet industry and technology experience with him. He has served in a number of past roles, including time at Dyn, now a Global Business Unit of the Oracle Corporation, managing Domain Name System (DNS) development Continue reading

IDG Contributor Network: Using a hybrid cloud file system to meet your storage needs

An increasing number of businesses are moving their data to the cloud to take advantage of the cost, scalability and efficiency benefits associated with not having to procure or maintain significant amounts of hardware. And indeed, cloud data storage can certainly help organizations achieve superior ROI; however, oftentimes when choosing a cloud-only file system such as Box or Dropbox, these organizations encounter significant problems – some of which can actually outweigh the benefits. These problems include: Due to inherent limitations in cloud protocols, accessing files from the cloud is rife with latency. This is particularly prevalent when accessing large files or simultaneously accessing a large number of files. Active directory access permission control. The permission schemes for cloud-based file systems are often different than your on-premises environment, causing Active Directory permissions to become an issue for both user and administrator levels. User interface. Losing the familiar file server interface, especially the mapped letter drive interface for a network share, forces users to learn and entirely new user interface. In addition to the increased stress, it can also reduce user efficiency in the short term. Shadow IT. Since the files are no longer located within the company’s infrastructure, IT Managers lose Continue reading

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