Cisco WS-C4003 Software Guide - Page 228
Mapping CoS Values to Transmit Queues and Drop Thresholds, Reverting to the Default CoS-to-Transmit
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Configuring QoS Chapter 14 Configuring QoS Mapping CoS Values to Transmit Queues and Drop Thresholds Use the set qos map command to associate CoS values to transmit queue drop thresholds. The port_type is hardware-dependent. Use the show port capabilities command to determine the port_type for your hardware. The port type is defined by the number of transmit queues and the number of drop thresholds supported on the port. For example, the 2q1t port type supports two transmit queues and one drop threshold. The q# is the transmit queue number. The threshold# is the drop threshold number for the specified queue. The cos_list is the list of CoS values to map to the specified transmit queue and drop threshold. CoS values must be specified in pairs (0-1, 2-3, 4-5, and 6-7). To associate CoS values to a transmit queue and drop threshold, perform this task in privileged mode: Task Associate a CoS value to a transmit queue and drop threshold. Command set qos map port_type q# threshold# cos cos_list This example shows how to map CoS values 4 through 7 to the second transmit queue and the first drop threshold for that queue on a 2q1t port: Console> (enable) set qos map 2q1t 2 1 cos 4-7 Qos tx priority queue and threshold mapped to cos successfully. Console> (enable) Reverting to the Default CoS-to-Transmit Queue and Drop Threshold Mapping Use the clear qos map command to revert to the default CoS-to-transmit queue and drop threshold mappings. The port_type is hardware-dependent. Use the show port capabilities command to determine the port_type for your hardware. To revert to the default CoS-to-transmit queue and drop threshold mappings, perform this task in privileged mode: Task Command Revert to default CoS-to-transmit queue and drop clear qos map port_type threshold mappings. This example shows how to return the CoS-to-transmit queue and drop threshold mappings to the default values on 2q1t ports: Console> (enable) clear qos map 2q1t Qos map setting cleared. Console> (enable) 14-6 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-12647-02