The following table is the QoS feature support on the SLX-OS platforms:
| Platform | User Ingress maps and DSCP Trust support | User Egress maps and DSCP Remark | 
|---|---|---|
| SLX 9150, SLX 9250, Extreme 8520, and Extreme 8720 | Yes | Yes | 
| SLX 9740 and Extreme 8820 | Yes | Yes. No DSCP Remark support on Layer 2 Switchport | 
| SLX 9540 and SLX 9640 | No | No |