Network queue policies define the network forwarding class queue characteristics. Network queue policies are applied on egress on core network ports or channels and on ingress FPs. Network queue policies can be configured to use as many queues as needed. This means that the number of queues can vary. Not all policies use the same number of queues as the default network queue policy. The multicast queues are only used at ingress.
The queue characteristics that can be configured on a per-forwarding class basis are:
CBS as a percentage of the buffer pool
MBS as a percentage of the buffer pool
low drop tail as a percentage reduction from MBS
PIR as a percentage of the FP ingress capacity or egress port bandwidth
CIR as a percentage of the FP ingress capacity or egress port bandwidth
FIR as a percentage of the FP ingress capacity or egress port bandwidth
Network queue policies are identified with a unique policy name that conforms to the standard router alphanumeric naming conventions.
The system default network queue policy is named default and cannot be edited or deleted. For information about the default network queue policy, see Network queue QoS policies.