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New: ipSpace.net Design Clinic

In early September, I started yet another project that’s been on the back burner for over a year: ipSpace.net Design Clinic (aka Ask Me Anything Reasonable in a more structured format). Instead of collecting questions and answering them in a podcast (example: Deep Questions podcast), I decided to make it more interactive with a live audience and real-time discussions. I also wanted to keep it valuable to anyone interested in watching the recordings, so we won’t discuss obscure failures of broken designs or dirty tricks that should have remained in CCIE lab exams.

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New: ipSpace.net Design Clinic

In early September, I started yet another project that’s been on the back burner for over a year: ipSpace.net Design Clinic (aka Ask Me Anything Reasonable in a more structured format). Instead of collecting questions and answering them in a podcast (example: Deep Questions podcast), I decided to make it more interactive with a live audience and real-time discussions. I also wanted to keep it valuable to anyone interested in watching the recordings, so we won’t discuss obscure failures of broken designs or dirty tricks that should have remained in CCIE lab exams.

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How not to get caught in law-enforcement geofence requests

I thought I'd write up a response to this question from well-known 4th Amendment and CFAA lawyer Orin Kerr:

Question for tech people related to "geofence" warrants served on Google: How easy is it for a cell phone user, either of an Android or an iPhone, to stop Google from generating the detailed location info needed to be responsive to a geofence warrant? What do you need to do?

— Orin Kerr (@OrinKerr) September 15, 2021

(FWIW, I'm seeking info from people who actually know the answer based on their expertise, not from those who are just guessing, or are who are now googling around to figure out what the answer may be,)

— Orin Kerr (@OrinKerr) September 15, 2021

First, let me address the second part of his tweet, whether I'm technically qualified to answer this. I'm not sure, I have only 80% confidence that I am. Hence, I'm writing this answer as blogpost hoping people will correct me if I'm wrong.

There is a simple answer and it's this: just disable "Location" tracking in the settings on the phone. Both iPhone and Android have a one-click button to tap that disables everything.

The trick is knowing which thing Continue reading

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Bringing the Power of SDN Automation to BGP EVPN Overlays

Some customers have asked whether Pluribus can create an overlay using BGP EVPN throughout the fabric, like other vendors do, and not just at the edge. The answer is “yes” we absolutely can do that, but unlike other vendors, we can apply the power of SDN automation to make it simpler.

The post Bringing the Power of SDN Automation to BGP EVPN Overlays appeared first on Pluribus Networks.

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IBM ships high-density tape drives based on lastest spec

IBM announced the general availability of the industry’s first magnetic tapes and drives based on the LTO-9 Ultrium specification for massive data capacity and resilience.The Linear Tape-Open (LTO) 9 spec features a 50% improvement in capacity over LTO-8, which translates to 18TB native capacity, or 45TB after data is compressed. Fujifilm and Sony announced media last month, but IBM is the first with a drive.To read this article in full, please click here

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IBM ships high-density tape drives based on lastest spec

IBM announced the general availability of the industry’s first magnetic tapes and drives based on the LTO-9 Ultrium specification for massive data capacity and resilience.The Linear Tape-Open (LTO) 9 spec features a 50% improvement in capacity over LTO-8, which translates to 18TB native capacity, or 45TB after data is compressed. Fujifilm and Sony announced media last month, but IBM is the first with a drive.To read this article in full, please click here

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Russ’ Rules of Network Design

We have the twelve truths of networking, and possibly Akin’s Laws, but is there a set of rules for network design? I couldn’t find one, so I decided to create one, containing 18 laws I’ve listed below.

Russ’ Rules of Network Design

1. If you haven’t found the tradeoffs, you haven’t looked hard enough.
2. Design is an iterative process. You probably need one more iteration than you’ve done to get it right.
3. A design isn’t finished when everything needed is added, it’s finished when everything possible is taken away.
4. Good design isn’t making it work, it’s making it fail gracefully.
5. Effective, elegant, efficient. All other orders are incorrect.
6. Don’t fix blame; fix problems.
7. Local and global optimization are mutually exclusive.
8. Reducing state always reduces optimization someplace.
9. Reducing state always creates interaction surfaces; shallow and narrow interaction surfaces are better than deep and broad ones.
10. The easiest place to improve or screw up a design is at the interaction surfaces.
11. The optimum is almost always in the middle someplace; eschew extremes.
12. Sometimes its just better to start over.
13. There are a handful of right solutions; there is an infinite array of wrong ones.
14. You are not immensely smarter than anyone else in Continue reading

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Troubleshooting Webinar this Friday

I’m teaching my troubleshooting webinar this Friday. I’ve revamped the slides entirely, so this will likely be a big change for anyone who’s attended previous versions of this. Three hours, 109 slides, and interaction through the chat window … all to develop some really good skills in how to troubleshoot. For those who are curious, I was taught formal troubleshooting skills in my early life in electronics, learning my lessons on ILS, RADAR, and radio systems of various kinds. This webinar is my adaptation of those skills for network engineers.

You can register here.

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What’s your Digital Dilemma?

There are many ways to describe the need for IT organizations to do things better. There are multiple opportunities to get it wrong. Certainly, compromising today in the name of tomorrow is what many IT leaders now call the digital dilemma. Derek Britton of Micro Focus offers the vendor perspective.

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Back-to-Office Canceled: The New Phase of IT Spending

As we hit IT budget season for 2022, many organizations are delaying their back-to-the-office plans. Here's what that will mean for CIO IT spending priorities next year.

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Blessay: Enterprise DevOps is about Hiring More People

The hidden secret of DevOps is headcount justification

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Response: Survey Reveals Talent Shortages as Biggest Barrier to Emerging Technologies Adoption

Lack of training not lack of talent

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Managing and monitoring swap space on Linux

Most of us don't often think about swap space unless we run into a problem on our systems that suggests we don't have enough. Even so, viewing and gauging the adequacy of swap space on a system is not overly complicated, and knowing what's normal for your system can help you spot when something is wrong. So let's check out some commands that can help you look into your swap space. But first, let's review some fundamentals.What swap space is and how it's used Swap space is disk space that acts something like an extension of memory. It gets used when the system's physical memory (RAM) is full and the system needs more memory resources. It's called "swap" because the system will move some inactive pages in memory into the swap space so that it can accommodate more data in RAM. In other words, it provides a way to free up RAM on a busy system.To read this article in full, please click here

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Managing and monitoring swap space on Linux

Most of us don't often think about swap space unless we run into a problem on our systems that suggests we don't have enough. Even so, viewing and gauging the adequacy of swap space on a system is not overly complicated, and knowing what's normal for your system can help you spot when something is wrong. So let's check out some commands that can help you look into your swap space. But first, let's review some fundamentals.What swap space is and how it's used Swap space is disk space that acts something like an extension of memory. It gets used when the system's physical memory (RAM) is full and the system needs more memory resources. It's called "swap" because the system will move some inactive pages in memory into the swap space so that it can accommodate more data in RAM. In other words, it provides a way to free up RAM on a busy system.To read this article in full, please click here

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Stateful Switchover (SSO) 101

Stateful Switchover (SSO) is another seemingly awesome technology that can help you implement high availability when facing a broken non-redundant network design. Here’s how it’s supposed to work:

• A network device runs two copies of the control plane (primary and backup);
• Primary control plane continuously synchronizes its state with the backup control plane;
• When the primary control plane crashes, the backup control plane already has all the required state and is ready to take over in moments.

Delighted? You might be disappointed once you start digging into the details.

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Stateful Switchover (SSO) 101

Stateful Switchover (SSO) is another seemingly awesome technology that can help you implement high availability when facing a broken non-redundant network design. Here’s how it’s supposed to work:

• A network device runs two copies of the control plane (primary and backup);
• Primary control plane continuously synchronizes its state with the backup control plane;
• When the primary control plane crashes, the backup control plane already has all the required state and is ready to take over in moments.

Delighted? You might be disappointed once you start digging into the details.

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Lucky Webapp Add Select2 dropdowns

In this post I will cover the process of adding searchable dropdown boxes to your Lucky webapp with the Select2 Javascript library and styling them with Bootstrap 5. Software The following software versions were used in this post. Lucky - 0.28.0 Select2 - 4.1.0-rc.0 Bootstrap -...continue reading

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Gartner: IT skills shortage hobbles cloud, edge, automation growth

Gartner says the current paucity of skilled IT workers is foiling the adoption of cloud, edge computing, and automation technologies.In its "2021-2023 Emerging Technology Roadmap" based on surveying 437 global firms, Gartner found that IT executives see the talent shortage as the most significant barrier to deploying emerging technologies, including compute infrastructure and platform services, network security, digital workplace, IT automation, and storage.To read this article in full, please click here

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Gartner: IT skills shortage hobbles cloud, edge, automation growth

Gartner says the current paucity of skilled IT workers is foiling the adoption of cloud, edge computing, and automation technologies.In its "2021-2023 Emerging Technology Roadmap" based on surveying 437 global firms, Gartner found that IT executives see the talent shortage as the most significant barrier to deploying emerging technologies, including compute infrastructure and platform services, network security, digital workplace, IT automation, and storage.To read this article in full, please click here

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Network Break 350: Intel Pledges Billions For European Chip Factories; Facebook Reveals New Data Center Design

This week's Network Break podcast wonders what Intel wants in return for a multi-year, multi-billion pledge to build European chip factories, marvels at Facebook's newly revealed data center designs, analyzes Comcast's Masergy acquisition, and more.