Allocating Buffer Space Between The Ingress Queues - Cisco Catalyst 2960 series Configuration Manual

How to Configure QoS
Command or Action
Step 4 end
Example:
Switch(config)# end
Step 5
show mls qos maps
Example:
Switch# show mls qos maps
Step 6 copy running-config startup-config
Example:
Switch# copy running-config
startup-config
Related Topics
Queueing and Scheduling on Ingress Queues, on page 556
Weighted Tail Drop, on page 554

Allocating Buffer Space Between the Ingress Queues

You define the ratio (allocate the amount of space) with which to divide the ingress buffers between the two
queues. The buffer and the bandwidth allocation control how much data can be buffered before packets are
dropped.
Beginning in privileged EXEC mode, follow these steps to allocate the buffers between the ingress queues.
This procedure is optional.
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
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Purpose
Returns to privileged EXEC mode.
Verifies your entries.
The DSCP input 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 input 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) Saves your entries in the configuration file.
To return to the default CoS input queue threshold map or the default DSCP
input queue threshold map, use the no mls qos srr-queue input cos-map or
the no mls qos srr-queue input dscp-map global configuration command.
To return to the default WTD threshold percentages, use the no mls qos
srr-queue input threshold queue-id global configuration command