Cisco Systems 6500 Switch User Manual


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Catalyst 6500 Series Switch Command Reference—Release 8.6
OL-8977-01
Chapter 2 Catalyst 6500 Series Switch and ROM Monitor Commands
set qos map
set qos map
To map a specific CoS value to the transmit- or receive-priority queues and the thresholds per available
priority queue for all ports, use the set qos map command.
set qos map port_type
tx | rx q# thr# cos coslist
set qos map port_type
tx | rx q# cos coslist
Syntax Description
Defaults The default mappings for all ports are shown in Table 2-23 and Table 2-24.
port_type Port type; valid values are 2q2t, 1p2q2t, 1p3q1t, and 1p2q1t for transmit. Valid values
are 1q2t, 1p1q4t, 1p1q0t, and 1p1q8t, 2q8t for receive. See the “Usage Guidelines”
section for additional information.
tx Specifies the transmit queue.
rx Specifies the receive queue.
q# Value determined by the number of priority queues provided at the transmit or receive
end; valid values are 1 and 2, with the higher value indicating a higher priority queue.
thr# Value determined by the number of drop thresholds available at a port; valid values are 1
and 2, with the higher value indicating lower chances of being dropped.
cos coslist Specifies CoS values; valid values are from 0 through 7, with the higher numbers
representing a higher priority.
Table 2-23 CoS-to-Queue-to-Threshold Mapping (TX)
Queue Threshold Cos Values
1
1. All CoS values, except CoS 5, are mapped to WRED. CoS 5, which is mapped to
queue 4, does not have an associated WRED threshold.
QoS enabled
110, 1
212, 3, 4
316, 7
405
QoS disabled
1 0 0, 1, 2, 3, 4, 5, 6, 7