Now OpenStack is the de-facto solution for data center resource virtualization, and there are many commercial solutions using the OpenStack community version. However, the network stack Neutron still has some limitations such as scalability, which degrades the overall network performance.
We have introduced SONA, which is scalable but simple and multi-tenant support network virtualization solution for OpenStack. Also, we have contributed the full source codes to ONOS. Now it is a key component of COSMOS, which is a SDDC architecture for SKT's All-IT infrastructure. In this talk, I am going to present the architecture, features, and a few simple demos including the entire COSMOS architecture.