Mls Qos Monitor - Cisco Catalyst 3550 Command Reference Manual

Chapter 2 Cisco IOS Commands

mls qos monitor

Use the mls qos monitor interface configuration command to define up to eight Differentiated Services Code
Point (DSCP) values per command for which byte or packet statistics are gathered by hardware. Use the no
form of this command to return to the default setting.
Syntax Description
bytes
dscp dscp1 ... dscp8
packets
Defaults Statistics are not gathered for any DSCP.
If no keyword is specified when the command is entered, byte statistics are gathered.
Command Modes
Interface configuration
Command History Release
12.1(4)EA1
Usage Guidelines
If you want to monitor more than eight DSCP values, you must enter this command again and specify
another set of DSCP values. Use this command when you want to find out how many packets are policed
and dropped by the quality of service (QoS) process in hardware.
Examples This example shows how to monitor DSCP values 10 to 20. Note that up to eight values can be entered
per command.
Switch(config-if)# mls qos monitor dscp 10 11 12 13 14 15 16 17
Switch(config-if)# mls qos monitor dscp 18 19 20
Switch(config-if)# end
Switch# show mls qos interface statistics
This example shows how to gather packet statistics for DSCPs 10 to 13:
Switch(config-if)# mls qos monitor dscp 10 11 12 13
Switch(config-if)# mls qos monitor packets
You can see the results of the monitoring activity by entering the show mls qos interface statistics
privileged EXEC command.
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mls qos monitor {bytes | dscp dscp1 ... dscp8 | packets}
no mls qos monitor {bytes | dscp dscp1 ... dscp8 | packets}
Gather statistics in bytes.
DSCP values to be monitored. Enter up to eight values per command, with
each value separated by a space. The range is 0 to 63.
Gather statistics in packets.
Modification
This command was first introduced.
Catalyst 3550 Multilayer Switch Command Reference
mls qos monitor
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