For access port and access SAP marking functionality (SAP-based and port-based), the 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 support SAP-based egress marking and port-based egress marking on only access ports when using access SAP-based egress queuing. Users have an option to use either SAP-based marking or port-based marking. In SAP-based marking, the remark policy defined in the SAP egress policy associated with each SAP is used to mark the packets egressing out of the SAP, if marking is enabled. In port-based marking, the remark policy defined in the access-egress policy associated with the access port determines the marking values to use for all the SAPs defined on that port. See Access egress QoS policies for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 for more information.
The 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 support only access port-based marking when port-based egress queues are configured. See Access egress QoS policies for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 for more information.
If DSCP remarking or both dot1p and DSCP remarking is specified, the DSCP field for traffic sent out of SAPs configured in a Layer 2 services are not marked.