Layer 2 Switching Commands 678ExampleThe following example displays how to set the DiffServ operational mode toactive.console(Config)#diffservdropUse the drop command in Policy-Class-Map Configuration mode to specifythat all packets for the associated traffic stream are to be dropped at ingress.NOTE: This command is not available on the N1500 Series switches.SyntaxdropDefault ConfigurationThis command has no default configuration.Command ModePolicy-Class-Map Configuration modeUser GuidelinesThis command has no user guidelines.ExampleThe following example displays how to specify that matching packets are tobe dropped at ingress.console(config-policy-classmap)#dropmark cosUse the mark cos command in Policy-Class-Map Configuration mode tomark all packets for the associated traffic stream with the specified class ofservice value in the user priority field of the 802.1p header. If the packet doesnot already contain this header, one is inserted.NOTE: This command is not available on the N1500 Series switches.