Alcatel-Lucent 7210 SAS E OS Quality Of Service Manual page 18

QoS Overview
and marks the traffic accordingly. The FCs are mapped onto the queues. There are 8 queues at the
port level. FC-to-queue mapping is static and is not configurable. The number of queues are static
and there are always 8 queues at the port level. An access egress policy also defines how to remark
the forwarding class to IEEE 802.1p bits in the customer traffic.
Network QoS policies are applied to access uplink ports. On ingress, the policy maps incoming
Dot1p values to forwarding class and profile state for the traffic received from the core network.
On egress, the policy maps forwarding class and profile state to Dot1p values for traffic to be
transmitted into the core network.
Network queue policies are applied on egress to access uplink ports. The policies define the
forwarding class queue characteristics for these entities.
Service ingress, access egress, and network QoS policies are defined with a scope of either
template or exclusive. Template policies can be applied to multiple entities (such as SAPs and
ports) whereas exclusive policies can only be applied to a single entity.
One service ingress QoS policy can be applied to a specific SAP. One access egress QoS policy
can be applied to the access port. One network QoS policy can be applied to a specific port. A
network QoS policy defines both ingress and egress behavior. One network queue policy can be
applied to the access uplink port.
If no QoS policy is explicitly applied to a SAP or port, a default QoS policy is applied.
Page 18 7210 SAS-E OS Quality of Service Guide