Extreme Networks ExtremeWare XOS Command Reference Manual page 883

ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.
configure ports rate-limit map cos high
Example
The following command sets the high queue to a CoS value of 6 on the ingressing packet on ports 4:2 to
4:10 (the other values follow in cascading order):
configure ports 4:2-10 rate-limit map cos high 6
History
This command was first available in ExtremeWare XOS 11.4.
Platform Availability
The command is available only on the BlackDiamond 12804 R-Series switch.
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ExtremeWare XOS 11.5 Command Reference Guide