For configuring the CBS value, the following must be considered:
If Jumbo frames need to be accommodated, then CBS must be set to at least a minimum of 10 kbytes. The default value set for the queue allows for jumbo frames. It is recommended to set the CBS to twice the amount of maximum frame size the queues is expected to carry.
CBS pool cannot be oversubscribed.
For configuring the MBS value, the following must be considered:
MBS value determines the maximum delay a packet can experience when using that queue. It should be set to a value such that the delay is acceptable.
It is recommended to set the minimum value for MBS to be about four to five times the maximum size of the frame the queue is expected to carry to ensure better scheduling performance.