https://ihar.dev/Ihar's Blog. Open Source, OpenStack, Kubernetes, Open vSwitch, OVN, Linux, Nix, Red Hat. 2025-07-12T18:07:42-04:00 Ihar Hrachyshka https://ihar.dev/ Jekyll © 2025 Ihar Hrachyshka /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png 2025-05-17T11:00:00-04:00 2025-05-17T11:00:00-04:00 https://ihar.dev/posts/nix-darwin-community-builders/ Ihar Hrachyshka

This post describes how to set up a nix-darwin machine to use community builders for Nix upstream development.

2023-12-18T12:00:00-05:00 2023-12-18T12:00:00-05:00 https://ihar.dev/posts/fmt_pkt-ovn-testsuite/ Ihar Hrachyshka

Recording of my lightning talk at OVS conference 2023. The talk is about the OVN test suite life quality improvement using `scapy` that allows to express network protocol expectations and generate packets to inject in a symbolic form.

2023-09-19T04:00:00-04:00 2023-09-19T04:00:00-04:00 https://ihar.dev/posts/ovn-chassis-binding-walkthru/ Ihar Hrachyshka

This post explains how ovn-controller binds ports to chassis. It also describes the new multi-chassis port bindings, why they are needed, and how they work.

2022-11-27T12:00:00-05:00 2022-11-27T12:00:00-05:00 https://ihar.dev/posts/ovsconf-live-migration-ovn-multi-chassis-binding/ Ihar Hrachyshka

Recording of my talk at OVS conference 2022. The talk describes how OVN multi chassis bindings may help with reducing network downtime for libvirt based live migration.

2017-03-01T04:00:00-05:00 2017-03-01T04:00:00-05:00 https://ihar.dev/posts/garp-neutron-war-story/ Ihar Hrachyshka

A OpenStack ML2/OVS trip to kernel gratuitous ARP packet handling code and back.