2025-09 Monthly Summary: Delivered a new DHCPv4 Relay configuration model for SONiC OS, enabling model-driven management of relay settings across VRF, interfaces, and relay behavior; integrated into the build system to enable runtime configuration of DHCPv4 Relay.

In August 2025, delivered a comprehensive high-level design for a SONiC-native DHCPv4 relay agent to replace ISC-DHCP. The design addresses VLAN/VRF awareness, streamlined configuration, monitoring capabilities, Redis-DB integration for configuration and statistics, and EVPN topology support. This work provides a solid architectural foundation and a migration path to a scalable, observable DHCP solution. Commit reference included: f415128406f6baced4f3677665d5604618563a89 (DHCPv4 Relay Agent High Level Design #1938).

April 2025 performance summary: Strengthened network resilience and operational efficiency across SONiC platforms with targeted enhancements to ECMP hashing, dynamic nexthop management, and automated configuration tooling. Delivered documentation for a new prefix-based ECMP hashing mode, expanded the Fine-Grained Hashing (FGH) YANG model to support dynamic nexthop groups, and introduced auto-generated FG-NHG CLI to simplify lifecycle management of nexthop groups, prefixes, and members. These changes reduce manual configuration effort, improve routing stability, and enable dynamic, route-driven nexthop updates aligned with route changes.