Cisco Catalyst 3550

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Catalyst 3550 Multilayer Switch Command Reference
OL-8566-01
Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
show mls qos interface
show mls qos interface
Use the show mls qos interface user EXEC command to display quality of service (QoS) information
at the interface level.
show mls qos interface [interface-id] [buffers | policers | queueing | statistics]
[ | {begin | exclude | include} expression]
Syntax Description
Command Modes User EXEC
Command History
Usage Guidelines If no keyword is specified with the show mls qos interface command, the display shows the port trusted
mode (DSCP trusted, CoS trusted, untrusted, and so forth), the default CoS value, the
DSCP-to-DSCP-mutation map (if any) attached to the port, and the policy map (if any) attached to the
interface. If a specific interface is not specified, the information for all interfaces appears.
Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output
do not appear, but the lines that contain Output appear.
Examples This is an example of output from the show mls qos interface command:
Switch# show mls qos interface fastethernet0/1
FastEthernet0/1
interface-id (Optional) Display QoS information for the specified interface. Valid interfaces
include physical ports.
buffers (Optional) Display buffer settings of the queues. For Gigabit-capable Ethernet
ports, the display includes the queue depth for each of the four queues and the tail
drop or Weighted Random Early Detection (WRED) thresholds. For 10/100
Ethernet ports, the display includes the configured minimum-reserve settings.
policers (Optional) Display all the policers configured on the interface, their settings, and
the number of policers that are currently unassigned.
queueing (Optional) Display queueing strategy (weighted round robin, priority queueing),
the weights corresponding to the queues, and the class of service
(CoS)-to-egress-queue map.
statistics (Optional) Display all the Differentiated Services Code Points (DSCPs) for which
statistics are maintained and the corresponding ingress and egress statistics,
including the number of bytes dropped.
| begin (Optional) Display begins with the line that matches the expression.
| exclude (Optional) Display excludes lines that match the expression.
| include (Optional) Display includes lines that match the specified expression.
expression Expression in the output to use as a reference point.
Release Modification
12.1(4)EA1 This command was introduced.