--- title: From Oscilloscope to Wireshark | daily.dev description: A deep-dive engineering story tracing UDP packets from raw oscilloscope voltage waveforms all the way up to decoded network packets. Starting with a high-speed... canonical: https://daily.dev/posts/from-oscilloscope-to-wireshark-crjffd5bv twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: From Oscilloscope to Wireshark | daily.dev og:description: A deep-dive engineering story tracing UDP packets from raw oscilloscope voltage waveforms all the way up to decoded network packets. Starting with a high-speed... og:url: https://daily.dev/posts/from-oscilloscope-to-wireshark-crjffd5bv og:image: https://api.daily.dev/og/posts/CRJfFD5BV.png og:image:alt: From Oscilloscope to Wireshark og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # From Oscilloscope to Wireshark **[Matt Keeter](https://daily.dev/sources/mattkeeter)** · 26 min read · 0 upvotes · 0 comments ## Summary A deep-dive engineering story tracing UDP packets from raw oscilloscope voltage waveforms all the way up to decoded network packets. Starting with a high-speed active differential probe soldered to an Oxide Computer Company rack switch, the author walks through: parsing Tektronix .wfm binary files using Rust and nom, decoding 8b/10b encoding by detecting comma characters and clock synchronization, demultiplexing QSGMII's four interleaved SGMII streams, converting code-groups to PCS ordered sets per IEEE 802.3, handling 100M-to-gigabit rate adaptation, and finally writing .pcap files for analysis in Wireshark and tshark. The full pipeline runs in ~410ms and was part of debugging an intermittent link failure caused by a switch IC misconfiguration. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [From Oscilloscope to Wireshark](https://daily.dev/posts/from-oscilloscope-to-wireshark-ej0zi6aaf) · Hacker News · 1 upvotes · 0 comments - [I stopped using Wireshark for first-line troubleshooting after discovering Windows' built-in packet capture tool](https://daily.dev/posts/i-stopped-using-wireshark-for-first-line-troubleshooting-after-discovering-windows-built-in-packet--x4ki42qwx) · XDA Developers · 0 upvotes · 0 comments - [Hunting Down Hackers: Incident Response with Wireshark](https://daily.dev/posts/hunting-down-hackers-incident-response-with-wireshark-btxstfa39) · InfoSec Write-ups · 0 upvotes · 0 comments --- Tags: [#rust](https://daily.dev/tags/rust), [#networking](https://daily.dev/tags/networking), [#wireshark](https://daily.dev/tags/wireshark) [View this post on daily.dev](https://daily.dev/posts/from-oscilloscope-to-wireshark-crjffd5bv) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"From Oscilloscope to Wireshark","url":"https://daily.dev/posts/from-oscilloscope-to-wireshark-crjffd5bv","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/from-oscilloscope-to-wireshark-crjffd5bv"},"datePublished":"2026-03-31T12:29:53.734Z","dateModified":"2026-03-31T12:54:22.528Z","description":"A deep-dive engineering story tracing UDP packets from raw oscilloscope voltage waveforms all the way up to decoded network packets. 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