Dell Force10 S4820T FTOS Command Reference Guide - Page 467
bandwidth-percentage, clear ets counters
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bandwidth-percentage Configure the bandwidth percentage allocated to priority traffic in port queues. Syntax bandwidth-percentage percentage To remove the configured bandwidth percentage, use the no bandwidth-percentage command. Parameters percentage (Optional) Enter the bandwidth percentage. The percentage range is 1 to 100% in units of 1%. Defaults none Command Modes QOS-POLICY-OUT-ETS Command History Version 8.3.19.0 Version 8.3.12.0 Version 8.3.16.0 Introduced on the S4820T. Introduced on the S4810. Introduced on MXL 10/40GbE Switch IO Module Usage Information By default, equal bandwidth is assigned to each port queue and each dot1p priority in a priority group. Use the bandwidth-percentage command to configure bandwidth amounts in associated dot1p queues. When specified bandwidth is assigned to some port queues and not to others, the remaining bandwidth (100% minus assigned bandwidth amount) is equally distributed to unassigned non-strict priority queues in the priority group. The sum of the allocated bandwidth to all queues in a priority group should be 100% of the bandwidth on the link. ETS-assigned bandwidth allocation applies only to data queues, not to control queues. The configuration of bandwidth allocation and strict-queue scheduling is not supported at the same time for a priority group. If both are configured, the configured bandwidth allocation will be ignored for priority-group traffic when you apply the output policy on an interface. By default, equal bandwidth is assigned to each priority group in the ETS output policy applied to an egress port if no bandwidth allocation is configured. The sum of configured bandwidth allocation to dot1p priority traffic in all ETS priority groups must be 100%. You must allocate at least 1% of the total bandwidth to each priority group and queue. If bandwidth is assigned to some priority groups but not to others, the remaining bandwidth (100% minus assigned bandwidth amount) is equally distributed to non-strict-priority groups which have no configured scheduler. Related Commands qos-policy-output ets scheduler Create a QoS output policy. Schedule priority traffic in port queues. clear ets counters Clear all ETS TLV counters on an interface. Data Center Bridging | 467