This document provides a clear and well-scoped architectural framework for Computing Aware Traffic Steering (CATS). The separation of functional components and workflows makes it easy to understand. 

From a security perspective, the document correctly identifies key risks, including frequent metric updates, control-plane abuse, information disclosure, and the need for authentication and integrity protection between CATS components. The acknowledgment of potential attack vectors (e.g., metric manipulation, service instance churn) and the recommendation for safeguards such as aggregation, dampening, and threshold based updates are appropriate at the framework level.

Best Regards, 

Linda Dunbar