APRESIA is a Japanese distributor of open networking products such as white box switch, Network OS, network orchestrator and so on. KDDI, NTT PC Communications and some other customers have deployed SONiC in commercial network and we've supported their activities. In this presentation, I'd like to share takeaways of SONiC commercial deployments and operations: - use case: Management network, AI/ML network - requirements: Change of interface name, uplink tracking, ZTP, - network design: Interoperability of EVPN/VXLAN with server NIC teaming and IPv6 - trouble shooting: Analysis of sairedis debug log for EVPN routing issue.