This document describes the Quality-of-Service (QoS) and queuing architecture of the Cisco® Catalyst® 9000 family of switches. It explains the buffer, scheduling, policing, and remarking features. It provides details on how to manage the buffer sharing between multiple ports, on how AutoQoS can simplify deployments, and on how to specify custom QoS policies to meet application requirements.
Cisco Catalyst 9000 Switching Platforms: QoS and Queuing White Paper
