CommandModesCONFIGURATIONCommandHistoryThis guide is platform-specific. For command information about other platforms,refer to the relevant Dell Networking OS Command Line Reference Guide.The following is a list of the Dell Networking OS version history for this command.Version8.3.19.0Introduced on the S4820T.Version8.3.12.0Introduced on the S4810.Version8.3.16.0Introduced on the MXL 10/40GbE Switch IO Module.UsageInformationIf an error occurs in an ETS output-policy configuration, the configuration isignored and the scheduler and bandwidth allocation settings are reset to the ETSdefault values (all priorities are in the same ETS priority group and bandwidth isallocated equally to each priority).If an error occurs when a port receives a peer’s ETS configuration, the port’sconfiguration is reset to the previously configured ETS output policy. If no ETSoutput policy was previously applied, the port is reset to the default ETSparameters.You can only associate output QoS policy profiles with the priority groups in theDCB output profile context; output QoS policy profiles are not permitted on outputpolicy-maps.WRED, ECN, rate shaping, and rate limiting are not supported in output policiesbecause DCBx does not negotiate these parameters with peer devices. You canapply a QoS output policy with WRED and/or rate shaping on a DCBx CIN-enabledinterface.If you enable the scheduler command for a QoS ETS output policy, nobandwidth percentage is assigned to the policy.RelatedCommands• scheduler — schedules the priority traffic in port queues.• bandwidth-percentage — bandwidth percentage allocated to the priority trafficin port queues.schedulerConfigure the method used to schedule priority traffic in port queues.S4810Syntax scheduler valueTo remove the configured priority schedule, use the no scheduler command.544 Data Center Bridging (DCB)