4A0-107 Exam Dumps : Nokia Quality of Service

The available bandwidth of the port is divided in a strict priority over its children.

Expedited queues must be serviced before best-effort queues.

Orphaned queues are serviced on the 8th scheduling priority.

The configured CIR dictates the maximum port bandwidth that can be allocated during the within-CIR pass for that level.

A packet is accepted into a queue based on its priority and forwarding class.

Buffer admission control limits the number of out-of-profile packets that enter the queue.

Both high priority-only buffer space and WRED can be used in a queue.

Priority is used when a packet enters a SAP-ingress queue.

The first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress.

The EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied.

The 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header.

The EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress.