Cisco Systems 3560 사용자 설명서

Beginning in privileged EXEC mode, follow these steps to map DSCP or CoS values to an egress queue 
and to a threshold ID. This procedure is optional.

To return to the default DSCP output queue threshold map or the default CoS output queue threshold 
map, use the no mls qos srr-queue output dscp-map or the no mls qos srr-queue output cos-map 
global configuration command.

This example shows how to map DSCP values 10 and 11 to egress queue 1 and to threshold 2:

Switch(config)# mls qos srr-queue output dscp-map queue 1 threshold 2 10 11

You can specify how much of the available bandwidth is allocated to each queue. The ratio of the weights 
is the ratio of frequency in which the SRR scheduler sends packets from each queue.

Enter global configuration mode.

mls qos srr-queue output dscp-map 
queue queue-id threshold threshold-id 
dscp1...dscp8

or 

mls qos srr-queue output cos-map 
queue queue-id threshold threshold-id 
cos1...cos8 

Map DSCP or CoS values to an egress queue and to a threshold ID.

By default, DSCP values 0–15 are mapped to queue 2 and threshold 1. 
DSCP values 16–31 are mapped to queue 3 and threshold 1. DSCP values 
32–39 and 48–63 are mapped to queue 4 and threshold 1. DSCP values 
40–47 are mapped to queue 1 and threshold 1.

By default, CoS values 0 and 1 are mapped to queue 2 and threshold 1. 
CoS values 2 and 3 are mapped to queue 3 and threshold 1. CoS values 4, 
6, and 7 are mapped to queue 4 and threshold 1. CoS value 5 is mapped to 
queue 1 and threshold 1.

For queue-id, the range is 1 to 4.

For threshold-id, the range is 1 to 3. The drop-threshold percentage 
for threshold 3 is predefined. It is set to the queue-full state.

For dscp1...dscp8, enter up to eight values, and separate each value 
with a space. The range is 0 to 63.

For cos1...cos8, enter up to eight values, and separate each value with 
a space. The range is 0 to 7.

Return to privileged EXEC mode.

Verify your entries.

The DSCP output queue threshold map appears as a matrix. The d1 
column specifies the most-significant digit of the DSCP number; the d2 
row specifies the least-significant digit in the DSCP number. The 
intersection of the d1 and the d2 values provides the queue ID and 
threshold ID; for example, queue 2 and threshold 1 (02-01).

The CoS output queue threshold map shows the CoS value in the top row 
and the corresponding queue ID and threshold ID in the second row; for 
example, queue 2 and threshold 2 (2-2).

(Optional) Save your entries in the configuration file.