netstack.fm

A podcast about networking, Rust, and everything in between. Join us as we explore the stack: from protocols and packet flows to the people and projects building the modern internet — all through the lens of Rust. Featuring deep dives, crate spotlights, and expert interviews.

netstack.fm is a technology podcast hosted by Plabayo BV, with 38 episodes on record and a Required Pod Score of 80. PitchCentric scores this show on Booking Probability, Listen Score, and live audience signals refreshed every 24 hours.

Plabayo BV hosts netstack.fm, a technology show with 38 episodes published.

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  Episode #38

  Building and testing network stacks with Rama

  May 26, 202633 minS1

  Episode 38: Building and testing network stacks with Rama. In this Protocol Shorts episode of Netstack.fm , Glen talks with Brecht Stamper about Rama, the modular Rust framework for building clients, servers, proxies, and other network systems. Brecht shares how he came to understand Rama’s core idea that everything is a service, and why that simple input to output contract makes it easier to compose complex stacks without constantly inventing new traits or glue code. They also discuss how Rama helps with testing, including gRPC client and server logic without spinning up real HTTP or TCP infrastructure. The conversation then moves into practical production lessons, such as gRPC latency caused by TCP_NODELAY, the role of OpenTelemetry and logging, and how Rama can provide better abstractions while still allowing low level control. Later in the episode, Glen and Brecht explore Rama’s evolving extension system, including the move toward append only extensions, clearer separation between request and connection state, and support for complex scenarios such as HTTP/2 streams and protocol upgrades. They close with thoughts on where Rama is heading next, including HTTP/3, QUIC, better developer tooling, performance work, and making more hard won network fixes available to everyone through the framework. Learn more https://ramaproxy.org/ — Rama homepage: modular Rust framework for proxies, clients, servers, inspection, tunneling, and network diagnostics. https://ramaproxy.org/book/ — Rama book: broader introduction to Rama and its approach to fine grained programmable control over network stacks. https://ramaproxy.org/docs/rama/index.html — Rama API documentation: generated Rust docs for the main Rama crate. https://github.com/plabayo/rama — Rama source code on GitHub. Chapters 00:00 Intro 00:48 Introduction to Rama and Brecht's Role 02:46 Understanding Services in Rama 08:22 Testing and Mocking in Rama 10:23 gRPC and TCP Configuration Issues 15:35 Evolution of Extensions in Rama 24:58 Building with Rama and Rama's Horizon 31:52 Outro Netstack.FM More information: https://netstack.fm/#episode-38 Join our Discord: https://discord.gg/29EetaSYCD Reach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj

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  Episode #37

  dial9: from black box to insight in Tokio

  May 5, 20261h 7mS1

  episode 37: dial9: from black box to insight in Tokio. In this episode of Netstack.fm , Glen talks with Jess Izen and Russell Cohen from Amazon about Dial9, a new tool for understanding what’s happening inside Rust and Tokio applications. They explain how it captures events from different layers of your system and puts them into a single timeline, making it much easier to debug tricky performance issues and unexpected behavior. They also share how Dial9 came out of real debugging challenges at Amazon, where engineers often had to rely on complex, low level tools. The goal with Dial9 is to make those kinds of insights more accessible, so developers can diagnose problems faster and with less guesswork, while the tool continues to evolve with new features and improvements. Learn more: https://www.youtube.com/watch?v=yTlThfOcslM — TokioConf 2026 - Lightning Talk: dial9: WTF is Tokio actually doing? by Russell Cohen https://tokio.rs/blog/2026-03-18-dial9 — Introducing dial9: a flight recorder for Tokio https://github.com/dial9-rs/dial9-tokio-telemetry — source code (Tokio Telemetry you can run in production) https://github.com/dial9-rs/dial9-tokio-telemetry/blob/main/dial9-trace-format/SPEC.md — trace format spec https://www.youtube.com/watch?v=kr0RYMu57kU — demo walkthrough (slightly outdated) https://github.com/dial9-rs/dial9-tokio-telemetry/blob/main/dial9-tokio-telemetry/examples/production_use.rs — example Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro 02:01 Meet Russell and Jess 05:27 The Mission of the Rust Team at Amazon 11:47 Integration with OpenTelemetry and Tracing 13:49 The Evolution of Dial 9 17:17 Comparing Dial 9 with Existing Tools 20:07 Continue exploring history and development and UX of Dial9 33:47 Building Self-Serve Solutions 36:22 perf sched 38:30 Task Dumps 41:17 Dial 9: almost a free lunch 43:00 Cross-Platform Considerations for Dial 9 46:20 Future Features and Improvements for Dial 9 50:20 Dial 9 usage today 54:31 Considerations before using Dial 9 01:03:05 Getting Started with Dial 9 01:05:30 Outro Netstack.FM More information: https://netstack.fm/#episode-37 Join our Discord: https://discord.gg/29EetaSYCD Reach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj

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  Episode #36

  Protocol Shorts: WireGuard

  Apr 25, 202617 minS1

  Episode 36 – Protocol Shorts: WireGuard In this Protocol Shorts episode of netstack.fm , we explore WireGuard, a modern and lightweight VPN protocol. Glen explains what makes it different from traditional VPNs and why its simplicity and security model are gaining attention among developers. The episode also highlights real world use cases and why VPNs like WireGuard remain essential for securely accessing private resources. Learn more: https://www.wireguard.com/ — official website of WireGuard https://www.wireguard.com/papers/wireguard.pdf — WireGuard whitepaper https://www.youtube.com/watch?v=OipNNLHLphw — Black Hat USA 2018 - WireGuard Next Generation Secure Network Tunnel Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro 00:18 Introduction to WireGuard 01:41 WireGuard Properties 03:24 Why WireGuard? 07:43 Current Use Cases and Adoption of WireGuard 11:42 Get started with WireGuard 14:37 Final Words 15:17 Outro Netstack.FM More information: https://netstack.fm/#episode-36 Join our Discord: https://discord.gg/29EetaSYCD Reach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj.

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  Episode #35

  OpenTelemetry, eBPF and Metoro (Ep 3 Remastered)

  Apr 15, 202657 minS1

  Episode 35 – OpenTelemetry, eBPF and Metoro (Ep 3 Remastered). In this remastered episode, Chris Batterbee, co-founder of Metoro, discusses the importance of observability in modern software systems, particularly in Kubernetes environments. He explains how Metoro leverages eBPF technology to simplify observability by automatically instrumenting applications. The discussion also covers the integration of OpenTelemetry, the challenges faced by developers in implementing observability, and the potential of AI in diagnosing issues. Chris shares insights from his experience with Y Combinator and the competitive landscape of observability tools, emphasizing the unique position of Metoro in the market. Learn more about OpenTelemetry, eBPF and Metoro: https://opentelemetry.io/ https://ebpf.io/ https://metoro.io/ metoro demo: https://demo.us-east.metoro.io/guardian?startEnd=&service= OpenTelemetry metric examplar: https://opentelemetry.io/docs/specs/otel/metrics/data-model/#exemplars Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro 00:34 Into to Chris Battarbee 02:36 Understanding eBPF and Its Role in Observability 10:13 Integrating OpenTelemetry with eBPF 15:05 Challenges and Experiences with OpenTelemetry 22:28 Future of eBPF and OpenTelemetry in Different Environments 27:53 YCombinator Experience 29:31 Insights from Y Combinator Experience 32:31 Networking and Community in Y Combinator 34:43 Raising Funds Post-Y Combinator 35:39 Post-Y Combinator Relationship with YC 36:27 OpenTelemetry Pain Points 38:31 The Future of OpenTelemetry and Standards 39:47 Competition with Major Cloud Providers 41:40 Understanding eBPF and Its Challenges 43:24 Prometheus vs. OpenTelemetry 44:40 AI Integration in Telemetry 45:36 Metoro 49:03 Profiling 51:43 Metoro Payment Models 53:57 Customer Engagement and Support 55:09 Outro Netstack.FM More information: https://netstack.fm/#episode-35 Join our Discord: https://discord.gg/29EetaSYCD Reach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj .

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  Episode #34

  Tokio with Carl Lerche (Ep 5 Remastered)

  Apr 9, 20261h 36mS1

  Episode 34 — Tokio with Carl Lerche (Ep 5 Remastered). In this remastered episode, Glen speaks with Carl Lerche, the creator and maintainer of the Tokio Runtime, about his journey into technology, the evolution of programming languages, and the impact of Rust on the software development landscape. They discuss the rise of async programming, the development of networking libraries, and the future of Rust in infrastructure. Carl shares insights on the creation of the Bytes crate, the implications of io_uring, and his role at Amazon. The conversation also touches on the upcoming Tokio conference and the introduction of Toasty, a new query engine for Rust. Learn more: https://tokio.rs/ https://www.tokioconf.com/ https://github.com/carllerche Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro 01:26 Introduction to Carl and His Journey in Tech 16:30 How Carl got into Rust 21:18 How Mio/Tokio begun 47:15 The Evolution of IO-URing and Its Practicality 53:11 Amazon's Adoption of Rust and Tokyo 55:06 Transitioning Leadership in the Tokyo Project 57:15 Toasty 01:08:55 AI in Software Development: A Tool for Productivity 01:25:53 First Tokio Conference 01:34:28 Outro Netstack.FM More information: https://netstack.fm/#episode-34 Join our Discord: https://discord.gg/29EetaSYCD Reach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj .

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