Best of the Hedge: Episode 4

26 September 2025


 
Multicloud is all the rage — but is this always an intentional state of affairs, or do companies just “fall into” multicloud? Security in multicloud and certifications round out this episode of the Hedge, where we are joined by Joe Cozzupoli. You can get in touch with Joe through twitter at @jcozzupo24150.

Worth Reading 091925

19 September 2025


“Classic” TCP uses an extremely simple loss-based congestion detection algorithm that is intended to save networks from collapsing under extreme overload.


The endgame is a society where corporate algorithms make decisions about employment, education, and social interaction with no accountability.


The rise of Agentic AI, the emergence and adoption of AI agents and agent-to-agent networking to autonomously perform tasks on behalf of humans, has introduced unique challenges for existing security products.


In the landscape of organizational management, a distinction exists between teams that (a.) efficiently deliver a high-quality service or product, and (b.) those that innovate and develop their thought leadership in an area of emerging technology.


Broadcom CEO Hock Tan delivered a rather defiant keynote to open the VMware Explore conference in Las Vegas recently, telling the audience they are better off using the latest version of VMware Cloud Foundation (VCF) on-premises than hyperscale cloud service providers.


The public is told that AI systems are super smart and have the world’s info at their electronic beck and call. At the same time, it is humans and human organizations who claim professional expertise and so deliver their “truth” via media and Internet.


While Eutelsat’s OneWeb operates the second-largest commercial LEO satellite network, its real-world network performance remains largely unexplored by researchers, due to its targeted enterprise and government markets.


If AI is to become pervasive, as the model builders and datacenter builders who are investing enormous sums of money are clearly banking on it to be, then it really goes have to be a global phenomenon.


It looks to me like history is repeating itself. We’re seeing the same hype cycle for 6G that we saw for 5G.


This article taxonomizes the 25-year history of IPID-based exploits and the corresponding changes to IPID selection methods. By mathematically analyzing these methods’ correctness and security and empirically evaluating their performance, we reveal recommendations for best practice as well as shortcomings of current operating system implementations, emphasizing the value of systematic evaluations in network security.


But for NaaS to truly transform enterprise networking, one thing has been missing: standards. Enter Mplify (formerly the Metro Ethernet Forum), a non-profit focused on standardizing NaaS service definitions.

Hedge 281: Blockchain

19 September 2025


 
What is the relationship between blockchain technologies and network engineering? Is blockchain “just another application,” or are there implications for naming, performance, and connectivity? Austin Federa joins Tom and Russ to discuss the intersection of blockchain and networks.

Hedge 280: Networking Careers

12 September 2025


 
When you think of careers in network engineering, you probably think of being a console jockey, racking and stacking and configuring boxes. There is, however, much larger than just these things. Ethan Banks joins Eyvonne and Russ to talk about the broader world of careers in network engineering.

Worth Reading 090925

9 September 2025


The arrangements regarding the composition and organisation of the provision and operation of authoritative root servers are one of the more long-lasting aspects of the public Internet.


Microsoft has achieved a breakthrough in the hollow core fiber technology, reducing data transmission loss to just 0.091 dB per kilometer, the lowest ever achieved and significantly below the 0.14 dB/km limit that has constrained fiber networks for decades.


China has pursued a strategy of competition among government-owned organizations, and it initiated two government-owned constellation projects, Hongyun and Hongyan, in 2018.


There is no question that one of the smartest things that chip designer, packager, and manufacturing process manager Marvell Technology did was to shell out $650 million in May 2019 to buy Avera Semiconductor.


In early 2024, a Hong Kong-based clerk at multinational consulting engineering firm Arup was duped into transferring about $25 million to scammers who used AI to impersonate the company’s CFO, and other senior executives, in a live video meeting.

Hedge 279: Learning Theory

5 September 2025

Returning to a thread here at the Hedge, Rick Graziani joins Tom and Russ to discuss a college professor’s perspective on why network engineers should learn the theory, and not just the configuration.

Worth Reading 090325

3 September 2025


Among the plethora of advanced attacker tools that exemplify how threat actors continuously evolve their tactics, techniques, and procedures (TTPs) to evade detection and maximize impact, PipeMagic, a highly modular backdoor used by Storm-2460 masquerading as a legitimate open-source ChatGPT Desktop Application, stands out as particularly advanced.


In this episode of PING, APNIC’s Chief Scientist, Geoff Huston, explores the economic inevitability of centrality in the modern Internet.


Philipp delivers a sober message for innovators: invention is only half the battle; defending your invention can define your company’s fate.


Google now estimates that the specs for a Cryptographically Relevant Quantum Computer (CRQC), which can break conventional public key encryption in a useful amount of time, are lower than they had previously estimatedﾅby 95%.


In this report, I’ll focus on the material presented at the DELEG and DNSOP Working Groups.

Worth Reading 090125

1 September 2025


Can we trust AI? Will AI take our jobs? Is an AI app safe? Shall we invest in AI company? Create an AI startup? Will AI accelerate cybercrime?


This study highlights the inadequacy of current privacy protection measures and proposes an automated, sustainable approach to correlate user profiles, including homonyms and pseudonyms, solely through publicly available data.


Bargury’s attack starts with a poisoned document, which is shared to a potential victim’s Google Drive. (Bargury says a victim could have also uploaded a compromised file to their own account.)


I wrote last week about three examples of the new GPT 5.0 chatbot contradicting Sam Altman’s claim that “it really feels like talking to an expert in any topic, like a PhD-level expert.”


RFCs are, inherently, the result of a design-by-committee writing process; usually intended for engineers to read. Especially with cryptography, they err on the side of technical specification rather than introductory blog post.


The transition to IPv6 is now a practical necessity for networks under pressure to scale, secure, and streamline their operations.

Worth Reading 082925

29 August 2025


In this episode of PING, Robert Kisteleki from the RIPE NCC discusses the RIPE Atlas system — a network of over 13,000 measurement devices deployed worldwide in homes, exchange points, stub and transit Autonomous Systems, densely connected regions and sparse island states.


The common denominator in both tests was technology called “Innovative Optical and Wireless Network” (IOWN), an all-optical networking stack that NTT hopes will mature in 2030 and expects will reduce power consumption by 100x, improve transmission capacity by 125x, and reduce network latency to 0.5 percent of current levels.


Internet Exchange Points (IXPs) are often overlooked in discussions about critical infrastructure. Yet their role in routing stability, local resilience, and digital sovereignty is undeniable.


Is adding AI to your environment a software purchase? Or is it more like hiring an employee?


Design by committee should always ring alarm bells, particularly in technology. The desire to achieve acceptable compromises between various opinions often leads to compromised technical outcomes, and it seems to me that the current work on redefining zone cuts and delegation in the DNS is leading to this same outcome


The TCP/IP Interoperability Conference—later renamed Interop—began as a small workshop in August 1986. It quickly grew in scope to incorporate tutorials, and by 1988 an exhibition network connected 51 exhibitors to each other and to the global Internet.


There is a relatively new fiber technology that most readers will not have heard about. Multi-core fiber (MCF) is a technology that packs multiple strands of fiber inside a bundle that is about the same size as a single strand of fiber today.


This is where the “Jericho” StrataDNX switch/router chips and their related “Ramon” fabric elements come in, which are an important part of the Broadcom datacenter networking portfolio.


We had a series of mini-outages at sketch.dev on July 15th, caused by LLM-written code.

Hedge 278: Advocating for Yourself

29 August 2025


 
“Advocate for yourself!” What does this mean, and how can you do it? Alexis Bertholf joins Tom and Russ to discuss practical strategies to advocate for yourself.