Dell N3200-ON EMC Networking N-Series Switches CLI Reference Guide version 6.7 - Page 751

Syntax cos-queue {random-detect queue-id1 [queue-id2..queue-idn]} no cos-queue {random-detect queue-id1 [queue-id2..queue-idn]} • queue-id-An integer indicating the internal CoS queue-id which is to be enabled for WRED. Range 0-6. Up to 7 queues may be simultaneously specified. Default Configuration WRED queue management policy is disabled by default. Tail-drop queue management policy is enabled by default. The threshold for invoking taildrop behavior when WRED is disabled is approximately 1/2 of the remaining free packet buffer in the switch. Command Mode Interface Configuration (Ethernet or port-channel) mode, Interface Range mode, or Global Configuration mode User Guidelines When used on a port-channel, this command will override the settings on the individual interfaces that are part of the port channel. Removing an interface from the port channel restores the individual interface settings. This command can be used in Interface Range mode. Use the cos-queue min-bandwidth command to configure the minimum scheduler bandwidth percentage guarantee for the CoS queues. Use the show interfaces random-detect command to display the WRED configuration, including ECN configuration. Use the policy-map and conform-color commands to mark traffic with a color other than default green color. The drop probability scale supports values in the range 0-10% and the discrete values 25%, 50%, 75%, and 100%. Other values are truncated to the next lower value by the hardware. Layer 2 Switching Commands 751