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Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
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Chapter 41 Configuring QoS
Configuring QoS
1p3q1t Transmit Queues
With
1p3q1t
transmit queues, you can associate a CoS value with either the nonconfigurable tail-drop
threshold or the configurable WRED-drop threshold:
•
To associate a CoS value with the tail-drop threshold, map the CoS value to the queue.
•
To associate a CoS value with the WRED-drop threshold, map the CoS value to the queue and
threshold.
To associate CoS values to the
1p3q1t
transmit-queue drop thresholds, perform this task in privileged
mode:
Queue 1 is standard low priority, queue 2 is medium priority, and queue 3 is high priority. Queue 4 is
strict priority.
To map CoS values to the tail-drop threshold, omit the threshold number or enter 0.
The WRED-drop threshold number is 1.
This example shows how to associate the CoS value 0 to transmit-queue 1/drop threshold 1:
Console> (enable)
set qos map 1p3q1t tx 1 1 cos 0
Qos tx strict queue and threshold mapped to cos successfully.
Console> (enable)
Reverting to CoS Map Defaults
To revert to default CoS value/drop threshold mapping, perform this task in privileged mode:
This example shows how to revert to QoS map defaults:
Console> (enable)
clear qos map 1p3q1t tx
Qos map setting cleared.
Console> (enable)
Task
Command
Step 1
Associate a CoS value to a transmit-queue drop
threshold.
set qos map
1p3q1t tx
q#
[
thr#
]
cos
coslist
Step 2
Verify the configuration.
show qos
info config
{
1p1q4t rx
|
1p1q0t rx
|
1p2q2t tx
|
2q2t tx
|
1p3q1t tx
}
Task
Command
Step 1
Revert to QoS map defaults.
clear qos map
{
1p1q4t rx
|
1p1q0t rx
|
1p2q2t tx
|
2q2t tx
|
1p3q1t tx
}
Step 2
Verify the configuration.
show qos
info config
{
1p1q4t rx
|
1p1q0t rx
|
1p2q2t tx
|
2q2t tx
|
1p3q1t tx
}
