March 2026 — FRRouting/frr: Delivered Core Dump Collection for Unresponsive Daemons to accelerate debugging and reduce MTTR. When a daemon fails to respond to VTY pings and watchfrr_options includes --collect-core, watchfrr triggers a SIGABRT to the unresponsive daemon to produce a core dump, enabling faster post-mortem analysis. The feature is configurable per host via /etc/frr/daemons and implemented in the commit that adds --collect-core support to watchfrr (43fa5197c8fd4865155f73f4629fa896253caa8e).

February 2026 focused on stabilizing BGP route management in FRRouting/frr. Implemented a fix to remove routes from the RIB when suppress-fib-pending is configured under the GR N bit so stale routes are not advertised to peers. This change also corrects the peer reset flow by unsetting the PEER_STATUS_NSF_WAIT flag in the FIB suppress path, enabling proper route installation after peer reconnect. The work reduces risk of misrouting, improves convergence, and enhances inter-domain stability.

Month 2025-10: LabNConsulting/frr – Reliability improvement in event polling. Major bug fixed: Reliable Event Polling Timeout Handling. Implemented nanosecond-precision timeout handling in ppoll and enforced a minimum 1ms timeout to prevent poll spinning, improving polling efficiency and reliability. No new features delivered this month; primary impact is more stable IO paths under high load, reducing CPU usage and latency in event processing. Skills demonstrated include low-level C timeout management, POSIX poll/ppoll semantics, code debugging/review, and careful change management (commit 85e459f89ac3b47b896fdd3dbe594a841ebcf1c4).