Summary of major functions of QoS policies

The following table describes the major functions performed by the QoS policies for 7210 SAS-D and 7210 SAS-Dxp.

Table: QoS policy types and descriptions for 7210 SAS-D and 7210 SAS-Dxp
Policy type	Applied at…	Description
Service ingress	Access SAP ingress	defines up to 32 FC meters and meter parameters for traffic classification defines match criteria to map flows to the meters based on any one of the criteria (IP or MAC or both IP and MAC)
Access egress	Access port	defines up to eight FC queues and queue parameters for traffic classification maps FCs to the queues defines queue parameters for the queues defines FC-to-remarking values defines CIR levels and PIR weights that determine how the queue is prioritized by the scheduler
Egress rate	Access port and access-uplink port	configures the maximum bandwidth available for traffic sent out of a specified port
Accounting mode	Device level	sets the accounting mode to packet-based or frame-based for ingress and egress QoS policies
Network	Access uplink ports	on ingress, defines dot1p to FC mapping and meters on egress, defines FC-to-remarking values (for example, IEEE 802.1p)
Network queue	Access uplink ports	defines FC mappings to network queues and queue characteristics for the queues
Slope	Port queues	on 7210 SAS-D, enables or disables the high-slope, low-slope, and non-TCP parameters within the egress pool on 7210 SAS-Dxp, enables or disables high-slope and low-slope parameters for TCP traffic
Port scheduler	Access port and Access-uplink port	defines the parameters for the port scheduler