layer2 (OPTIONAL) Enter the keyword layer2 to specify a Layer 2 Class Map. The default isLayer 3.Defaults Layer 3Command Modes INTERFACECommand History This guide is platform-specific. For command information about other platforms, see the relevant Dell NetworkingOS Command Line Reference Guide.Version Description9.10(0.0) Introduced on the S6100-ON.9.8(1.0) Introduced on the Z9100-ON.9.8(0.0P5) Introduced on the S4048-ON.9.8(0.0P2) Introduced on the S3048-ON.9.7(0.0) Introduced on the S6000-ON.9.2(1.0) Introduced on the Z9500.9.0.2.0 Introduced on the S6000.8.3.19.0 Introduced on the S4820T.8.3.11.1 Introduced on the Z9000.8.3.7.0 Introduced on the S4810.7.6.1.0 Introduced on the S-Series.7.5.1.0 Introduced on the C-Series.7.4.1.0 E-Series Only: Expanded to add support for Layer 2.6.1.1.1 Introduced on the E-Series.Usage Information You can attach a single policy-map to one or more interfaces to specify the service-policy for those interfaces. Apolicy map attached to an interface can be modified.NOTE: The service-policy commands are not allowed on a port channel. The service-policyinput policy-map-name command and the service-class dynamic dot1p command are notallowed simultaneously on an interface. However, the service-policy input command (without thepolicy-map-name option) and the service-class dynamic dot1p command are allowed on an interface.Related Commands • policy-map-input — creates an input policy map.service-policy outputApply an output policy map to the selected interface.Syntax service-policy output policy-map-name1284 Quality of Service (QoS)