This chapter presents various enhancements for 6G networks, focusing on critical challenges, such as low latency, high throughput, and resource efficiency. Achieving these objectives relies on emerging networking technologies, encompassing network function virtualization, software-defined network, and in-network computing. The chapter begins by reviewing contributions related to the placement of existing components in mobile core networks. The flexibility of 6G networks enables the introduction of in-network computing, facilitating computation within mobile networks. Subsequently, the chapter examines key contributions to in-network computing in mobile networks, covering topics such as adaptive compute platforms, application mapping, and mobile edge cloud.