During December 2025, GlacierTablet addressed a critical networking issue in the DragonBluep/openwrt repository by delivering a host FDB reachability fix for multi-CPU-port setups. Using C programming and kernel development skills, GlacierTablet merged CPU and DSA-port FDB programming within the qca8k driver, resolving host reachability problems in multi-port configurations. This solution aligned with ongoing kernel patches and OpenWrt pull requests, ensuring compatibility and forward integration. The work improved network reliability and bridging consistency for devices using qca8k/DSA bridges, reducing troubleshooting time for multi-port issues. The depth of the fix demonstrated strong understanding of network programming and driver internals.