Networks on Casper Andersson https://casan.se/categories/networks/ Recent content in Networks on Casper Andersson Hugo -- 0.140.0 en Tue, 11 Aug 2026 00:00:00 +0000 Seamless redundancy in networks https://casan.se/blog/networks/seamless-redundancy-in-networks/ Tue, 11 Aug 2026 00:00:00 +0000 https://casan.se/blog/networks/seamless-redundancy-in-networks/ Redundancy without downtime is crucial in many industries. Try it yourself with HSR in network namespaces. How many ethernet ports are too many? https://casan.se/blog/networks/how-many-ethernet-ports-are-too-many/ Wed, 06 Aug 2025 00:00:00 +0000 https://casan.se/blog/networks/how-many-ethernet-ports-are-too-many/ IEEE 1588 defines the field portNumber as a 16-bit unsigned integer. ts2phc and synchronizing hardware clocks https://casan.se/blog/networks/ts2phc-and-synchronizing-hardware-clocks/ Sat, 06 Jan 2024 00:00:00 +0000 https://casan.se/blog/networks/ts2phc-and-synchronizing-hardware-clocks/ How to use ts2phc to synchronize clocks PTP peer delay measurement https://casan.se/blog/networks/ptp-peer-delay-measurement/ Thu, 12 Oct 2023 00:00:00 +0000 https://casan.se/blog/networks/ptp-peer-delay-measurement/ Methods of measuring peer delay Synchronization and Syntonization https://casan.se/blog/networks/synchronization-and-syntonization/ Mon, 10 Jul 2023 00:00:00 +0000 https://casan.se/blog/networks/synchronization-and-syntonization/ Aligning and keeping clocks aligned PTP and timestamping methods https://casan.se/blog/networks/ptp-and-timestamping-methods/ Wed, 05 Apr 2023 00:00:00 +0000 https://casan.se/blog/networks/ptp-and-timestamping-methods/ A maybe not so gentle introduction to the Precision Time Protocol Hexend - Send raw hex frames https://casan.se/blog/networks/hexend-send-raw-hex-frames/ Thu, 29 Sep 2022 00:00:00 +0000 https://casan.se/blog/networks/hexend-send-raw-hex-frames/ A tool I made for sending raw hex frames TSN: Time-Aware Shaper https://casan.se/blog/networks/tsn-time-aware-shaper/ Thu, 25 Aug 2022 00:00:00 +0000 https://casan.se/blog/networks/tsn-time-aware-shaper/ Time Sensitive Networking and the 802.1Qbv standard What is Time-Sensitive Networking? https://casan.se/blog/networks/what-is-time-sensitive-networking/ Tue, 07 Jun 2022 00:00:00 +0000 https://casan.se/blog/networks/what-is-time-sensitive-networking/ An introduction to Time-Sensitive Networking and some of its techniques Network bridge forwarding and learning https://casan.se/blog/networks/network-bridge-forwarding-and-learning/ Fri, 18 Feb 2022 00:00:00 +0000 https://casan.se/blog/networks/network-bridge-forwarding-and-learning/ Bridge forwarding of unicast and multicast in software and hardware