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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-06
Chapter 33 Configuring QoS
Displaying QoS Information
Displaying QoS Information
To display QoS information, use one or more of the privileged EXEC commands in Table 33-2. For
explanations about available keywords, see the command reference for this release.
QoS Statistics
There are several ways to display QoS input and output policy-map statistics.
For input policy maps, you can use the show policy-map interface [interface-id] privileged EXEC
command to display per-class per-policer conform and exceed statistics. Policer conform statistics are
the number of packets that conform to the configured policer profile; policer exceed statistics are the
number of packets that exceed the configured policer profile. The switch does not support per-class
classification statistics, but you can determine these statistics by configuring policing at line rate for the
class. In this case, no packets exceed the configured policer profile, and the policer conform statistics
would equal the class classification statistics.
Another way to view input QoS statistics is in the output of the show platform qos statistics interface
[interface-id] privileged EXEC command. The per-port frame statistics are sorted by the DSCP and CoS
values of the incoming frames on the port. These statistics do not provide any information about the
MQC input policy map configured on the interface.
For output policy maps, you can use the show policy-map interface [interface-id] command to display
per-class classification statistics that show the total number of packets that match the specified class.
This count includes the total number of packets that are sent and dropped for that class. You can use the
same command to view the per-class tail drop statistics.
Configuration Examples for Policy Maps
This section includes configuration examples for configuring QoS policies on the Cisco ME switch,
including configuration limitations and restrictions. The sections are broken into different configurations
actions that a customer might do. Each section provides the exact sequence of steps that you must follow
for successful configuration or modification.
Ta ble 33-2 Commands for Displaying Standard QoS Information
Command Purpose
show class-map [class-map-name] Display QoS class-map information for all class maps or the
specified class map.
show policer aggregate [aggregate-policer-name] Display information about all aggregate policers or the specified
aggregate policer.
show policy-map [policy-map-name | interface
[interface-id] [input | output] [class class-name]]
Display QoS policy map information for the specified policy
map name, interface, input or output policy maps, or policy-map
class.
show cpu traffic qos Display the QoS marking values for CPU-generated traffic.
show running-config Display the configured class maps, policy maps, table maps, and
aggregate policers.
show table-map [table-map-name] Display information for all configured table maps or the
specified table map.