Vrajesh E worked on developing a PVST Feature Validation and Testing Suite for the sonic-net/sonic-mgmt repository, focusing on robust end-to-end validation of the Per-VLAN Spanning Tree (PVST) feature. Using Python and pytest, Vrajesh automated BPDU message generation and validation, integrating PTF for test execution and leveraging SONIC DUT configuration via the CLICK CLI. The suite included operational state verification through Redis, ensuring accurate test assertions for spanning-tree state and topology changes. Vrajesh also co-authored a comprehensive test plan and documentation, demonstrating depth in network protocols and testing methodologies while delivering a maintainable, automated validation framework.