Xi (Chase) Jiang ‘21 won first place in the undergraduate ACM Student Research Competition (SRC) at SIGCOMM 2021 for his poster on “Non-interoperability Detection for Routing Protocol Implementations.” Xi designed a system that infers packet causal relationships to detect inconsistencies in network routing protocol implementations that arise due to ambiguities in routing protocol standards. A detailed description of Xi’s work is available at https://aaron.gember-jacobson.com/docs/sigcomm2021interop.pdf