At present, the closest capability to computing within the network fabric itself is Fog Computing. Cisco's IOx-enabled line of products (https://www.cisco.com/c/en/us/products/cloud-systems-managem...) pair a high-end router with decent computational capabilities. Other companies, like Nebbiolo Technologies (https://www.nebbiolo.tech/) or Fog Horn (https://www.foghorn.io/) provide Fog platforms that are not as locked to specific hardware.
If you would like more information on how Cloud, Edge, and Fog differ, I'll shamelessly plug our blog post from earlier this year: