Table Of Contents

Quality of Service Debug Commands on Cisco IOS XR Software

debug qos control

debug qos control hardware

debug qos data

debug snmp mib qosmib

Quality of Service Debug Commands on Cisco IOS XR Software

---

This chapter describes the commands used to debug the quality-of-service (QoS) software system.

debug qos control

To turn on the various quality-of-service (QoS) control plane debug functions, use the debug qos control command in EXEC mode. To turn off the QoS control plane debug functions, use the no form of this command.

debug qos control {all | classify | fq | mark | police | qosmgr | txm | wred}

no debug qos control {all | classify | fq | mark | police | qosmgr | txm | wred}

Syntax Description

all	Displays all the QoS control plane debug actions.
classify	Displays the Classify debug events.
fq	Displays the fair queueing events.
mark	Displays the mark events.
police	Displays the police events.
qosmgr	Displays the QoS manager events.
txm	Displays the TXM events.
wred	Displays the weighted random early detection (WRED) events.

Defaults

No default behavior or values

Command Modes

EXEC

Command History

Release	Modification
Release 2.0	This command was introduced on the Cisco CRS-1.
Release 3.0	No modification.
Release 3.2	This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0	No modification.
Release 3.4.0	No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Debugging output is assigned high priority in the CPU process and, therefore, can affect system performance. For more information about the impact on system performance when using debug commands, refer to Using Debug Commands on Cisco IOS XR Software.

Task ID

Task ID	Operations
qos	read, write

Examples

The following example shows how to enable QoS control plane classify debug events:

RP/0/RP0/CPU0:router# debug qos control all 

debug qos control hardware

To turn on the various quality-of-service (QoS) control hardware debug functions, use the debug qos control hardware command in EXEC mode. To turn off the QoS control hardware debug functions, use the no form of this command.

debug qos control hardware [classify | cong-avoid | cong-mgmt | error | mark | misc | police | stats]

no debug qos control hardware [classify | cong-avoid | cong-mgmt | error | mark | misc | police | stats]

Syntax Description

classify	(Optional) Displays classification-related information.
cong-avoid	(Optional) Displays WRED-related information.
cong-mgmt	(Optional) Displays queuing-related information.
error	(Optional) Displays errors while applying policies.
mark	(Optional) Displays marking-related information.
misc	(Optional) Displays miscellaneous information.
police	(Optional) Displays policing-related information.
stats	(Optional) Displays QoS statistics-related information.

Defaults

No default behavior or values

Command Modes

EXEC

Command History

Release	Modification
Release 2.0	This command was introduced on the Cisco CRS-1.
Release 3.0	No modification.
Release 3.2	This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0	No modification.
Release 3.4.0	The checkpoint keyword was removed.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Debugging output is assigned high priority in the CPU process and, therefore, can affect system performance. For more information about the impact on system performance when using debug commands, refer to Using Debug Commands on Cisco IOS XR Software.

Task ID

Task ID	Operations
qos	read, write

Examples

The following example shows how to enable the QoS control hardware debug function:

RP/0/RP0/CPU0:router# debug qos control hardware

debug qos data

To turn on the various quality-of-service (QoS) data plane debug functions, use the debug qos data command in EXEC mode. To turn off the QoS data plane debug functions, use the no form of this command.

debug qos data {classify | mark | mdrr | police | qfifo | txm}

no debug qos data {classify| mark | mdrr | police | qfifo | txm}

Syntax Description

classify	Displays the classify debug events.
mark	Displays the mark events.
mdrr	Displays the modified deficit round robin (MDRR) events.
police	Displays the police events.
qfifo	Displays the queue first in first out (QFIFO) events.
txm	Displays the TXM events.

Defaults

No default behavior or values

Command Modes

EXEC

Command History

Release	Modification
Release 2.0	This command was introduced on the Cisco CRS-1.
Release 3.0	No modification.
Release 3.2	This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0	No modification.
Release 3.4.0	No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Debugging output is assigned high priority in the CPU process and, therefore, can affect system performance. For more information about the impact on system performance when using debug commands, refer to Using Debug Commands on Cisco IOS XR Software.

Task ID

Task ID	Operations
qos	read, write

Examples

The following example shows how to enable the QoS data plane debug function:

RP/0/RP0/CPU0:router# debug qos data classify 

debug snmp mib qosmib

To turn on the various quality-of-service (QoS) qosmib debug functions, use the debug snmp mib qosmib command in EXEC mode. To turn off the QoS qosmib debug functions, use the no form of this command.

debug snmp mib qosmib

no debug snmp mib qosmib

Syntax Description

There are no keywords or arguments for this command.

Defaults

No default behavior or values

Command Modes

EXEC

Command History

Release	Modification
Release 3.3.0	This command was introduced on the Cisco CRS-1 and the Cisco XR 12000 Series Router.
Release 3.4.0	No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Debugging output is assigned high priority in the CPU process and, therefore, can affect system performance. For more information about the impact on system performance when using debug commands, refer to Using Debug Commands on Cisco IOS XR Software.

Task ID

Task ID	Operations
snmp	read, write
sysmgr	read

Examples

The following example shows how to enable the QoS data plane debug function:

RP/0/RP0/CPU0:router# debug snmp mib qosmib