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Category Archives for "Networking"

Heavy Networking 646: Networking For Spacefaring Rockets

Today on Heavy Networking, aerospace networking. We talk with Lexie Cooper, who works for Blue Origin as an Avionics Integration Engineer. That’s right. Lexie does networking for rockets. We talk about the challenges of building networks for spacefaring vehicles, differences between aerospace and the typical enterprise, continuous learning, the pros and cons of building a social media presence, and more.

The post Heavy Networking 646: Networking For Spacefaring Rockets appeared first on Packet Pushers.

Heavy Networking 646: Networking For Spacefaring Rockets

Today on Heavy Networking, aerospace networking. We talk with Lexie Cooper, who works for Blue Origin as an Avionics Integration Engineer. That’s right. Lexie does networking for rockets. We talk about the challenges of building networks for spacefaring vehicles, differences between aerospace and the typical enterprise, continuous learning, the pros and cons of building a social media presence, and more.

Weekend Reads 090922


CXL is supported by pretty much every hardware vendor and built on top of PCI Express for coherent memory access between a CPU and a device, such as a hardware accelerator, or a CPU and memory.


Challenges pertaining to outdated infrastructure could easily be compounded by the fact that many IT and security teams don’t seem to have a plan in place to mobilize if and when a cyberattack occurs.


Chinese military researchers are threatening that Musk’s Starlink satellites must be destroyed.


Early versions of QUIC had FEC, but for all resources. The redundancy overheads for all data were considered too high, and the feature was dropped.


Aside from counterfeiting, cybersquatting domains can also serve as vehicles for other types of cybercrime, such as spear phishing, scams, and spamming.


In 2020, the ICANN Generic Name Supporting Organization (GNSO) Council approved a plan to revamp the WHOIS system as per the recommendations given by the ICANN Expedited Policy Development Process (EPDP). This plan directed ICANN to develop a centralized System for Standardized Access/Disclosure (SSAD) for WHOIS records.


A couple of months ago, in July 2022, I wrote about our work in measuring the level of use of QUIC in the Continue reading

Brand Protection

I woke up at 5am this morning to order a new iPhone. I did this because I wanted the new camera upgrades along with some other nice-to-haves. Why did I get an iPhone and not a new Samsung? Why didn’t I look at any of the other phones on the market? It’s because I am a loyal Apple customer at this point. Does that mean I think the iPhone is perfect? Far from it! But I will choose it in spite of the flaws because I know it has room to be better.

That whole story is repeated time and again in technology. People find themselves drawn to particular companies or brands. They pick a new phone or computer or car based on their familiarity with the way they work or the design choices that are made. But does that mean they have to be loyal to that company no matter what?

Agree to Disagree

One of the things that I feel is absolutely paramount to being a trusted advisor in the technology space is the ability to be critical of a product or brand. If you look at a lot of the ambassador or influencer program agreements you’ll see Continue reading

Sender Pays

The entire set of issues of network neutrality, interconnection and settlements, termination monopolies, cost allocation and infrastructure investment economics is back with us again. This time it’s not under the banner of “Network Neutrality,” but under a more directly confronting title of “Sender Pays”. The principle is much the same: network providers want to charge both their customers and the content providers to carry content to users.

How to copy files to multiple locations on Linux

Using a series of commands to copy a file to multiple locations or a number of files to a single location can be time-consuming, but there are options to speed up the process. This post explains some of them.Multiple commands like these can to copy a single file to a series of directories on your system:$ cp myfile dir1 $ cp myfile dir2 $ cp myfile dir3 One way to make the task easier is typing the first command and then repeat the command by only specifying the needed changes. This method relies on whether the file or directory names are similar enough to substitute only some portion of the names. [ Get regularly scheduled insights by signing up for Network World newsletters. ]To read this article in full, please click here

How to copy files to multiple locations on Linux

Using a series of commands to copy a file to multiple locations or a number of files to a single location can be time-consuming, but there are options to speed up the process. This post explains some of them.Multiple commands like these can to copy a single file to a series of directories on your system:$ cp myfile dir1 $ cp myfile dir2 $ cp myfile dir3 One way to make the task easier is typing the first command and then repeat the command by only specifying the needed changes. This method relies on whether the file or directory names are similar enough to substitute only some portion of the names. [ Get regularly scheduled insights by signing up for Network World newsletters. ]To read this article in full, please click here

Cisco plans to predict, solve network problems via SaaS

Two years after it was it was acquire by Cisco, ThousandEyes' intelligent network software is now at the heart of the networking giant’s strategy to predict and fix network problems before they cause trouble.When it bought the compnay, Cisco acquired its cloud-based software package that analyzed everything from performance of local and wide-area networks to ISP, cloud, and collaboration-application performance to the health of the internet. Its cloud, enterprise, and endpoint-agent technology has been integrated in one fashion or another across Cisco’s core product lines such as its Catalyst, Nexus switches, and now that technology is part of Cisco's latest effort: predictive networking.To read this article in full, please click here

Upcoming Live Training: Data Center Fabrics

I’ve rebuilt my data center fabrics live training class, adding a lot of new material across the board, and adding a few new topics. To cover all this new material, the class has been expanded from three to six hours. I’m teaching it for the first time on the 29th and 30th of this month.

Register here.

From the Safari Books description—

Data centers are the foundation of the cloud, whether private, public, on the edge, or in the center of the network. This training will focus on topologies and control planes, including scale, performance, and centralization. This training is important for network designers and operators who want to understand the elements of data center design that apply across all hardware and software types.

This class consists of two three-hour sessions. The first session will focus on the physical topology, including a short history of spine-and-leaf fabrics, the characteristics of fabrics (versus the broader characteristics of a network), and laying out a spine-and-leaf network to support fabric lifecycle and scaling the network out. The first session will also consider the positive and negative aspects of using single- and multi-forwarding engine (FE) devices to build a fabric, and various aspects of Continue reading

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