The CBS parameter specifies the committed buffer space allocated for a given queue.
The CBS is provisioned on ingress and egress service queues within service ingress QoS policies and service egress QoS policies, respectively. The CBS for a queue is specified in kilobytes.
The CBS values for network queues are defined within network queue policies based on the forwarding class. The CBS values for the queues for the forwarding class are defined as a percentage of buffer space for the pool.