Auto-QoS

This chapter contains the following auto-QoS commands:

auto qos classify

To automatically configure quality of service (QoS) classification for untrusted devices within a QoS domain, use the auto qos classify command in interface configuration mode. To return to the default setting, use the no form of this command.

auto qos classify [police]

no auto qos classify [police]

Syntax Description

police

(Optional) Configure QoS policing for untrusted devices.

Command Default

Auto-QoS classify is disabled on the port.

Command Modes

Interface configuration

Command History

Release

Modification

Cisco IOS XE 3.2SE

This command was introduced.

Usage Guidelines

Use this command to configure the QoS for trusted interfaces within the QoS domain. The QoS domain includes the device, the network interior, and edge devices that can classify incoming traffic for QoS.

When auto-QoS is enabled, it uses the ingress packet label to categorize traffic, to assign packet labels, and to configure the ingress and egress queues.

Table 1. Auto-QoS Configuration for the Egress Queues

Egress Queue

Queue Number

CoS-to-Queue Map

Queue Weight (Bandwidth)

Queue (Buffer) Size for Gigabit-Capable Ports

Queue (Buffer) Size for 10/100 Ethernet Ports

Priority (shaped)

1

4, 5

up to 100 percent

25 percent

15 percent

SRR shared

2

2, 3, 6,7

10 percent

25 percent

25 percent

SRR shared

3

0

60 percent

25 percent

40 percent

SRR shared

4

1

20 percent

25 percent

20 percent

Auto-QoS configures the device for connectivity with a trusted interface. The QoS labels of incoming packets are trusted. For nonrouted ports, the CoS value of the incoming packets is trusted. For routed ports, the DSCP value of the incoming packet is trusted.

To take advantage of the auto-QoS defaults, you should enable auto-QoS before you configure other QoS commands. You can fine-tune the auto-QoS configuration after you enable auto-QoS.


Note

The device applies the auto-QoS-generated commands as if the commands were entered from the command-line interface (CLI). An existing user configuration can cause the application of the generated commands to fail or to be overridden by the generated commands. These actions occur without warning. If all the generated commands are successfully applied, any user-entered configuration that was not overridden remains in the running configuration. Any user-entered configuration that was overridden can be retrieved by reloading the device without saving the current configuration to memory. If the generated commands fail to be applied, the previous running configuration is restored.

After auto-QoS is enabled, do not modify a policy map or aggregate policer that includes AutoQoS in its name. If you need to modify the policy map or aggregate policer, make a copy of it, and change the copied policy map or policer. To use the new policy map instead of the generated one, remove the generated policy map from the interface, and apply the new policy map.

To display the QoS configuration that is automatically generated when auto-QoS is enabled, enable debugging before you enable auto-QoS. Use the debug auto qos privileged EXEC command to enable auto-QoS debugging.

The following policy maps and class maps are created and applied when running the auto qos classify and auto qos classify police commands:

Policy maps (For the auto qos classify police command):

  • AutoQos-4.0-Classify-Police-Input-Policy

  • AutoQos-4.0-Output-Policy

Class maps:

  • AutoQos-4.0-Multimedia-Conf-Class (match-any)

  • AutoQos-4.0-Bulk-Data-Class (match-any)

  • AutoQos-4.0-Transaction-Class (match-any)

  • AutoQos-4.0-Scavanger-Class (match-any)

  • AutoQos-4.0-Signaling-Class (match-any)

  • AutoQos-4.0-Default-Class (match-any)

  • class-default (match-any)

  • AutoQos-4.0-Output-Priority-Queue (match-any)

  • AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)

  • AutoQos-4.0-Output-Trans-Data-Queue (match-any)

  • AutoQos-4.0-Output-Bulk-Data-Queue (match-any)

  • AutoQos-4.0-Output-Scavenger-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)

To disable auto-QoS on a port, use the no auto qos classify interface configuration command. Only the auto-QoS-generated interface configuration commands for this port are removed. If this is the last port on which auto-QoS is enabled and you enter the no auto qos classify command, auto-QoS is considered disabled even though the auto-QoS-generated global configuration commands remain (to avoid disrupting traffic on other ports affected by the global configuration).

Examples

This example shows how to enable auto-QoS classification of an untrusted device and police traffic: 


Device(config)# interface gigabitEthernet1/0/6
Device(config-if)# auto qos classify police
Device(config-if)# end
Device# show policy-map interface gigabitEthernet1/0/6

GigabitEthernet1/0/6

  Service-policy input: AutoQos-4.0-Classify-Police-Input-Policy

    Class-map: AutoQos-4.0-Multimedia-Conf-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-MultiEnhanced-Conf
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp af41
      police:
          cir 5000000 bps, bc 156250 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          drop
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Bulk-Data-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Bulk-Data
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp af11
      police:
          cir 10000000 bps, bc 312500 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Transaction-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Transactional-Data
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp af21
      police:
          cir 10000000 bps, bc 312500 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Scavanger-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Scavanger
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp cs1
      police:
          cir 10000000 bps, bc 312500 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          drop
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Signaling-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Signaling
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp cs3
      police:
          cir 32000 bps, bc 8000 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          drop
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Default-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Default
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp default
      police:
          cir 10000000 bps, bc 312500 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps

  Service-policy output: AutoQos-4.0-Output-Policy

    queue stats for all priority classes:
      Queueing
      priority level 1

      (total drops) 0
      (bytes output) 0

    Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
      0 packets
      Match:  dscp cs4 (32) cs5 (40) ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      Priority: 30% (300000 kbps), burst bytes 7500000,

      Priority Level: 1

    Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
      0 packets
      Match:  dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue-limit dscp 16 percent 80
      queue-limit dscp 24 percent 90
      queue-limit dscp 48 percent 100
      queue-limit dscp 56 percent 100

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%

      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
      0 packets
      Match:  dscp af41 (34) af42 (36) af43 (38)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  4
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
      0 packets
      Match:  dscp af21 (18) af22 (20) af23 (22)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  2
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
      0 packets
      Match:  dscp af11 (10) af12 (12) af13 (14)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  1
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 4%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
      0 packets
      Match:  dscp cs1 (8)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 1%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
      0 packets
      Match:  dscp af31 (26) af32 (28) af33 (30)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 25%
      queue-buffers ratio 25

You can verify your settings by entering the show auto qos interface interface-id privileged EXEC command.

auto qos trust

To automatically configure quality of service (QoS) for trusted interfaces within a QoS domain, use the auto qos trust command in interface configuration mode. To return to the default setting, use the no form of this command.

auto qos trust {cos | dscp}

no auto qos trust {cos | dscp}

Syntax Description

cos

Trusts the CoS packet classification.

dscp

Trusts the DSCP packet classification.

Command Default

Auto-QoS trust is disabled on the port.

Command Modes

Interface configuration

Command History

Release

Modification

Cisco IOS XE 3.2SE

This command was introduced.

Usage Guidelines

Use this command to configure the QoS for trusted interfaces within the QoS domain. The QoS domain includes the device, the network interior, and edge devices that can classify incoming traffic for QoS. When auto-QoS is enabled, it uses the ingress packet label to categorize traffic, to assign packet labels, and to configure the ingress and egress queues.

Table 2. Traffic Types, Packet Labels, and Queues

VOIP Data Traffic

VOIP Control Traffic

Routing Protocol Traffic

STP1 BPDU2 Traffic

Real-Time Video Traffic

All Other Traffic

DSCP3

46

24, 26

48

56

34

–

CoS4

5

3

6

7

3

–

CoS-to-egress queue map

4, 5 (queue 1)

2, 3, 6, 7 (queue 2)

0 (queue 3)

2 (queue 3)

0, 1 (queue 4)

1 STP = Spanning Tree Protocol
2 BPDU = bridge protocol data unit
3 DSCP = Differentiated Services Code Point
4 CoS = class of service
Table 3. Auto-QoS Configuration for the Egress Queues

Egress Queue

Queue Number

CoS-to-Queue Map

Queue Weight (Bandwidth)

Queue (Buffer) Size for Gigabit-Capable Ports

Queue (Buffer) Size for 10/100 Ethernet Ports

Priority (shaped)

1

4, 5

Up to 100 percent

25 percent

15 percent

SRR shared

2

2, 3, 6,7

10 percent

25 percent

25 percent

SRR shared

3

0

60 percent

25 percent

40 percent

SRR shared

4

1

20 percent

25 percent

20 percent


Note

The device applies the auto-QoS-generated commands as if the commands were entered from the command-line interface (CLI). An existing user configuration can cause the application of the generated commands to fail or to be overridden by the generated commands. These actions occur without warning. If all the generated commands are successfully applied, any user-entered configuration that was not overridden remains in the running configuration. Any user-entered configuration that was overridden can be retrieved by reloading the device without saving the current configuration to memory. If the generated commands fail to be applied, the previous running configuration is restored.

After auto-QoS is enabled, do not modify a policy map or aggregate policer that includes AutoQoS in its name. If you need to modify the policy map or aggregate policer, make a copy of it, and change the copied policy map or policer. To use the new policy map instead of the generated one, remove the generated policy map from the interface, and apply the new policy map.

To display the QoS configuration that is automatically generated when auto-QoS is enabled, enable debugging before you enable auto-QoS. Use the debug auto qos privileged EXEC command to enable auto-QoS debugging.

The following policy maps and class maps are created and applied when running the auto qos trust cos command.

Policy maps:

  • AutoQos-4.0-Trust-Cos-Input-Policy

  • AutoQos-4.0-Output-Policy

Class maps:

  • class-default (match-any)

  • AutoQos-4.0-Output-Priority-Queue (match-any)

  • AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)

  • AutoQos-4.0-Output-Trans-Data-Queue (match-any)

  • AutoQos-4.0-Output-Bulk-Data-Queue (match-any)

  • AutoQos-4.0-Output-Scavenger-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)

The following policy maps and class maps are created and applied when running the auto qos trust dscp command:

Policy maps:

  • AutoQos-4.0-Trust-Dscp-Input-Policy

  • AutoQos-4.0-Output-Policy

Class maps:

  • class-default (match-any)

  • AutoQos-4.0-Output-Priority-Queue (match-any)

  • AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)

  • AutoQos-4.0-Output-Trans-Data-Queue (match-any)

  • AutoQos-4.0-Output-Bulk-Data-Queue (match-any)

  • AutoQos-4.0-Output-Scavenger-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)

To disable auto-QoS on a port, use the no auto qos trust interface configuration command. Only the auto-QoS-generated interface configuration commands for this port are removed. If this is the last port on which auto-QoS is enabled and you enter the no auto qos trust command, auto-QoS is considered disabled even though the auto-QoS-generated global configuration commands remain (to avoid disrupting traffic on other ports affected by the global configuration).

Examples

This example shows how to enable auto-QoS for a trusted interface with specific CoS classification. 


Device(config)# interface gigabitEthernet1/0/17
Device(config-if)# auto qos trust cos
Device(config-if)# end
Device# show policy-map interface GigabitEthernet1/0/17

GigabitEthernet1/0/17

  Service-policy input: AutoQos-4.0-Trust-Cos-Input-Policy

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        cos cos table AutoQos-4.0-Trust-Cos-Table

  Service-policy output: AutoQos-4.0-Output-Policy

    queue stats for all priority classes:
      Queueing
      priority level 1

      (total drops) 0
      (bytes output) 0

    Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
      0 packets
      Match:  dscp cs4 (32) cs5 (40) ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      Priority: 30% (300000 kbps), burst bytes 7500000,

      Priority Level: 1

    Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
      0 packets
      Match:  dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue-limit dscp 16 percent 80
      queue-limit dscp 24 percent 90
      queue-limit dscp 48 percent 100
      queue-limit dscp 56 percent 100

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%

      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
      0 packets
      Match:  dscp af41 (34) af42 (36) af43 (38)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  4
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
      0 packets
      Match:  dscp af21 (18) af22 (20) af23 (22)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  2
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
      0 packets
      Match:  dscp af11 (10) af12 (12) af13 (14)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  1
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 4%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
      0 packets
      Match:  dscp cs1 (8)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 1%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
      0 packets
      Match:  dscp af31 (26) af32 (28) af33 (30)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 25%
      queue-buffers ratio 25

This example shows how to enable auto-QoS for a trusted interface with specific DSCP classification. 


Device(config)# interface GigabitEthernet1/0/18
Device(config-if)# auto qos trust dscp
Device(config-if)# end
Device#show policy-map interface GigabitEthernet1/0/18

GigabitEthernet1/0/18

  Service-policy input: AutoQos-4.0-Trust-Dscp-Input-Policy

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp dscp table AutoQos-4.0-Trust-Dscp-Table

  Service-policy output: AutoQos-4.0-Output-Policy

    queue stats for all priority classes:
      Queueing
      priority level 1

      (total drops) 0
      (bytes output) 0

    Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
      0 packets
      Match:  dscp cs4 (32) cs5 (40) ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      Priority: 30% (300000 kbps), burst bytes 7500000,

      Priority Level: 1

    Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
      0 packets
      Match:  dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue-limit dscp 16 percent 80
      queue-limit dscp 24 percent 90
      queue-limit dscp 48 percent 100
      queue-limit dscp 56 percent 100

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%

      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
      0 packets
      Match:  dscp af41 (34) af42 (36) af43 (38)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  4
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
      0 packets
      Match:  dscp af21 (18) af22 (20) af23 (22)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  2
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
      0 packets
      Match:  dscp af11 (10) af12 (12) af13 (14)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  1
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 4%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
      0 packets
      Match:  dscp cs1 (8)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 1%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
      0 packets
      Match:  dscp af31 (26) af32 (28) af33 (30)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 25%
      queue-buffers ratio 25

You can verify your settings by entering the show auto qos interface interface-id privileged EXEC command.

auto qos video

To automatically configure quality of service (QoS) for video within a QoS domain, use the auto qos video command in interface configuration mode. Use the no form of this command to return to the default setting.

auto qos video { cts | ip-camera | media-player}

no auto qos video { cts | ip-camera | media-player}

Syntax Description

cts

Specifies a port connected to a Cisco TelePresence System and automatically configures QoS for video.

ip-camera

Specifies a port connected to a Cisco IP camera and automatically configures QoS for video.

media-player

Specifies a port connected to a CDP-capable Cisco digital media player and automatically configures QoS for video.

Command Default

Auto-QoS video is disabled on the port.

Command Modes

Interface configuration

Command History

Release

Modification

Cisco IOS XE 3.2SE

This command was introduced.

Usage Guidelines

Use this command to configure the QoS appropriate for video traffic within the QoS domain. The QoS domain includes the device, the network interior, and edge devices that can classify incoming traffic for QoS. When auto-QoS is enabled, it uses the ingress packet label to categorize traffic, to assign packet labels, and to configure the ingress and egress queues. For more information, see the queue tables at the end of this section.

Auto-QoS configures the device for video connectivity to a Cisco TelePresence system, a Cisco IP camera, or a Cisco digital media player.

To take advantage of the auto-QoS defaults, you should enable auto-QoS before you configure other QoS commands. You can fine-tune the auto-QoS configuration after you enable auto-QoS.

The device applies the auto-QoS-generated commands as if the commands were entered from the command-line interface (CLI). An existing user configuration can cause the application of the generated commands to fail or to be overridden by the generated commands. These actions occur without warning. If all the generated commands are successfully applied, any user-entered configuration that was not overridden remains in the running configuration. Any user-entered configuration that was overridden can be retrieved by reloading the device without saving the current configuration to memory. If the generated commands fail to be applied, the previous running configuration is restored.

If this is the first port on which you have enabled auto-QoS, the auto-QoS-generated global configuration commands are executed followed by the interface configuration commands. If you enable auto-QoS on another port, only the auto-QoS-generated interface configuration commands for that port are executed.

After auto-QoS is enabled, do not modify a policy map or aggregate policer that includes AutoQoS in its name. If you need to modify the policy map or aggregate policer, make a copy of it, and change the copied policy map or policer. To use the new policy map instead of the generated one, remove the generated policy map from the interface, and apply the new policy map.

To display the QoS configuration that is automatically generated when auto-QoS is enabled, enable debugging before you enable auto-QoS. Use the debug auto qos privileged EXEC command to enable auto-QoS debugging.

The following policy maps and class maps are created and applied when running the auto qos video cts command:

Policy maps:

  • AutoQos-4.0-Trust-Cos-Input-Policy

  • AutoQos-4.0-Output-Policy

Class maps

  • class-default (match-any)

  • AutoQos-4.0-Output-Priority-Queue (match-any)

  • AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)

  • AutoQos-4.0-Output-Trans-Data-Queue (match-any)

  • AutoQos-4.0-Output-Bulk-Data-Queue (match-any)

  • AutoQos-4.0-Output-Scavenger-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)

The following policy maps and class maps are created and applied when running the auto qos video ip-camera command:

Policy maps:

  • AutoQos-4.0-Trust-Dscp-Input-Policy

  • AutoQos-4.0-Output-Policy

Class maps:

  • class-default (match-any)

  • AutoQos-4.0-Output-Priority-Queue (match-any)

  • AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)

  • AutoQos-4.0-Output-Trans-Data-Queue (match-any)

  • AutoQos-4.0-Output-Bulk-Data-Queue (match-any)

  • AutoQos-4.0-Output-Scavenger-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)

The following policy maps and class maps are created and applied when running the auto qos video media-player command:

Policy maps:

  • AutoQos-4.0-Trust-Dscp-Input-Policy

  • AutoQos-4.0-Output-Policy

Class maps:

  • class-default (match-any)

  • AutoQos-4.0-Output-Priority-Queue (match-any)

  • AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)

  • AutoQos-4.0-Output-Trans-Data-Queue (match-any)

  • AutoQos-4.0-Output-Bulk-Data-Queue (match-any)

  • AutoQos-4.0-Output-Scavenger-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)

To disable auto-QoS on a port, use the no auto qos video interface configuration command. Only the auto-QoS-generated interface configuration commands for this port are removed. If this is the last port on which auto-QoS is enabled, and you enter the no auto qos video command, auto-QoS is considered disabled even though the auto-QoS-generated global configuration commands remain (to avoid disrupting traffic on other ports affected by the global configuration).

Table 4. Traffic Types, Packet Labels, and Queues

VOIP Data Traffic

VOIP Control Traffic

Routing Protocol Traffic

STP5 BPDU6 Traffic

Real-Time Video Traffic

All Other Traffic

DSCP7

46

24, 26

48

56

34

–

CoS8

5

3

6

7

3

–

CoS-to-egress queue map

4, 5 (queue 1)

2, 3, 6, 7 (queue 2)

2, 3, 6, 7 (queue 2)

2, 3, 6, 7 (queue 2)

0 (queue 3)

2 (queue 3)

0, 1 (queue 4)

5 STP = Spanning Tree Protocol
6 BPDU = bridge protocol data unit
7 DSCP = Differentiated Services Code Point
8 CoS = class of service
Table 5. Auto-QoS Configuration for the Egress Queues

Egress Queue

Queue Number

CoS-to-Queue Map

Queue Weight (Bandwidth)

Queue (Buffer) Size for Gigabit-Capable Ports

Queue (Buffer) Size for 10/100 Ethernet Ports

Priority (shaped)

1

4, 5

up to 100 percent

25 percent

15 percent

SRR shared

2

2, 3, 6, 7

10 percent

25 percent

25 percent

SRR shared

3

0

60 percent

25 percent

40 percent

SRR shared

4

1

20 percent

25 percent

20 percent

Examples

The following is an example of the auto qos video cts command and the applied policies and class maps: 


Device(config)# interface gigabitEthernet1/0/12
Device(config-if)# auto qos video cts
Device(config-if)# end
Device# show policy-map interface gigabitEthernet1/0/12

GigabitEthernet1/0/12

  Service-policy input: AutoQos-4.0-Trust-Cos-Input-Policy

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        cos cos table AutoQos-4.0-Trust-Cos-Table

  Service-policy output: AutoQos-4.0-Output-Policy

    queue stats for all priority classes:
      Queueing
      priority level 1

      (total drops) 0
      (bytes output) 0

    Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
      0 packets
      Match:  dscp cs4 (32) cs5 (40) ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      Priority: 30% (300000 kbps), burst bytes 7500000,

      Priority Level: 1

    Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
      0 packets
      Match:  dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue-limit dscp 16 percent 80
      queue-limit dscp 24 percent 90
      queue-limit dscp 48 percent 100
      queue-limit dscp 56 percent 100

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%

      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
      0 packets
      Match:  dscp af41 (34) af42 (36) af43 (38)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  4
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
      0 packets
      Match:  dscp af21 (18) af22 (20) af23 (22)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  2
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
      0 packets
      Match:  dscp af11 (10) af12 (12) af13 (14)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  1
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 4%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
      0 packets
      Match:  dscp cs1 (8)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 1%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
      0 packets
      Match:  dscp af31 (26) af32 (28) af33 (30)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 25%
      queue-buffers ratio 25

The following is an example of the auto qos video ip-camera command and the applied policies and class maps: 


Device(config)# interface GigabitEthernet1/0/9
Device(config-if)# auto qos video ip-camera
Device(config-if)# end
Device# show policy-map interface GigabitEthernet1/0/9

GigabitEthernet1/0/9

  Service-policy input: AutoQos-4.0-Trust-Dscp-Input-Policy

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp dscp table AutoQos-4.0-Trust-Dscp-Table

  Service-policy output: AutoQos-4.0-Output-Policy

    queue stats for all priority classes:
      Queueing
      priority level 1

      (total drops) 0
      (bytes output) 0

    Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
      0 packets
      Match:  dscp cs4 (32) cs5 (40) ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      Priority: 30% (300000 kbps), burst bytes 7500000,

      Priority Level: 1

    Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
      0 packets
      Match:  dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue-limit dscp 16 percent 80
      queue-limit dscp 24 percent 90
      queue-limit dscp 48 percent 100
      queue-limit dscp 56 percent 100

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%

      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
      0 packets
      Match:  dscp af41 (34) af42 (36) af43 (38)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  4
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
      0 packets
      Match:  dscp af21 (18) af22 (20) af23 (22)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  2
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
      0 packets
      Match:  dscp af11 (10) af12 (12) af13 (14)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  1
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 4%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
      0 packets
      Match:  dscp cs1 (8)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 1%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
      0 packets
      Match:  dscp af31 (26) af32 (28) af33 (30)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 25%
      queue-buffers ratio 25

The following is an example of the auto qos video media-player command and the applied policies and class maps. 


Device(config)# interface GigabitEthernet1/0/7
Device(config-if)# auto qos video media-player
Device(config-if)# end
Device# show policy-map interface GigabitEthernet1/0/7

GigabitEthernet1/0/7

  Service-policy input: AutoQos-4.0-Trust-Dscp-Input-Policy

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp dscp table AutoQos-4.0-Trust-Dscp-Table

  Service-policy output: AutoQos-4.0-Output-Policy

    queue stats for all priority classes:
      Queueing
      priority level 1

      (total drops) 0
      (bytes output) 0

    Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
      0 packets
      Match:  dscp cs4 (32) cs5 (40) ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      Priority: 30% (300000 kbps), burst bytes 7500000,

      Priority Level: 1

    Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
      0 packets
      Match:  dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue-limit dscp 16 percent 80
      queue-limit dscp 24 percent 90
      queue-limit dscp 48 percent 100
      queue-limit dscp 56 percent 100

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%

      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
      0 packets
      Match:  dscp af41 (34) af42 (36) af43 (38)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  4
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
      0 packets
      Match:  dscp af21 (18) af22 (20) af23 (22)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  2
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
      0 packets
      Match:  dscp af11 (10) af12 (12) af13 (14)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  1
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 4%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
      0 packets
      Match:  dscp cs1 (8)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 1%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
      0 packets
      Match:  dscp af31 (26) af32 (28) af33 (30)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 25%
      queue-buffers ratio 25

You can verify your settings by entering the show auto qos video interface interface-id privileged EXEC command.

auto qos voip

To automatically configure quality of service (QoS) for voice over IP (VoIP) within a QoS domain, use the auto qos voip command in interface configuration mode. Use the no form of this command to return to the default setting.

auto qos voip { cisco-phone | cisco-softphone | trust}

no auto qos voip { cisco-phone | cisco-softphone | trust}

Syntax Description

cisco-phone

Specifies a port connected to a Cisco IP phone, and automatically configures QoS for VoIP. The QoS labels of incoming packets are trusted only when the telephone is detected.

cisco-softphone

Specifies a port connected to a device running the Cisco SoftPhone, and automatically configures QoS for VoIP.

trust

Specifies a port connected to a trusted device, and automatically configures QoS for VoIP. The QoS labels of incoming packets are trusted. For nonrouted ports, the CoS value of the incoming packet is trusted. For routed ports, the DSCP value of the incoming packet is trusted.

Command Default

Auto-QoS is disabled on the port.

When auto-QoS is enabled, it uses the ingress packet label to categorize traffic, to assign packet labels, and to configure the ingress and egress queues.

Command Default

Interface configuration

Command History

Release

Modification

Cisco IOS XE 3.2SE

This command was introduced.

Usage Guidelines

Use this command to configure the QoS appropriate for VoIP traffic within the QoS domain. The QoS domain includes the device, the network interior, and edge devices that can classify incoming traffic for QoS.

Auto-QoS configures the device for VoIP with Cisco IP phones on device and routed ports and for devices running the Cisco SoftPhone application. These releases support only Cisco IP SoftPhone Version 1.3(3) or later. Connected devices must use Cisco Call Manager Version 4 or later.

To take advantage of the auto-QoS defaults, you should enable auto-QoS before you configure other QoS commands. You can fine-tune the auto-QoS configuration after you enable auto-QoS.


Note

The device applies the auto-QoS-generated commands as if the commands were entered from the command-line interface (CLI). An existing user configuration can cause the application of the generated commands to fail or to be overridden by the generated commands. These actions occur without warning. If all the generated commands are successfully applied, any user-entered configuration that was not overridden remains in the running configuration. Any user-entered configuration that was overridden can be retrieved by reloading the device without saving the current configuration to memory. If the generated commands fail to be applied, the previous running configuration is restored.

If this is the first port on which you have enabled auto-QoS, the auto-QoS-generated global configuration commands are executed followed by the interface configuration commands. If you enable auto-QoS on another port, only the auto-QoS-generated interface configuration commands for that port are executed.

When you enter the auto qos voip cisco-phone interface configuration command on a port at the edge of the network that is connected to a Cisco IP phone, the device enables the trusted boundary feature. The device uses the Cisco Discovery Protocol (CDP) to detect the presence of a Cisco IP phone. When a Cisco IP phone is detected, the ingress classification on the port is set to trust the QoS label received in the packet. The device also uses policing to determine whether a packet is in or out of profile and to specify the action on the packet. If the packet does not have a DSCP value of 24, 26, or 46 or is out of profile, the device changes the DSCP value to 0. When a Cisco IP phone is absent, the ingress classification is set to not trust the QoS label in the packet. The policing is applied to those traffic matching the policy-map classification before the device enables the trust boundary feature.

  • When you enter the auto qos voip cisco-softphone interface configuration command on a port at the edge of the network that is connected to a device running the Cisco SoftPhone, the device uses policing to decide whether a packet is in or out of profile and to specify the action on the packet. If the packet does not have a DSCP value of 24, 26, or 46 or is out of profile, the device changes the DSCP value to 0.
  • When you enter the auto qos voip trust interface configuration command on a port connected to the network interior, the device trusts the CoS value for nonrouted ports or the DSCP value for routed ports in ingress packets (the assumption is that traffic has already been classified by other edge devices).

You can enable auto-QoS on static, dynamic-access, and voice VLAN access, and trunk ports. When enabling auto-QoS with a Cisco IP phone on a routed port, you must assign a static IP address to the IP phone.


Note

When a device running Cisco SoftPhone is connected to a device or routed port, the device supports only one Cisco SoftPhone application per port.

After auto-QoS is enabled, do not modify a policy map or aggregate policer that includes AutoQoS in its name. If you need to modify the policy map or aggregate policer, make a copy of it, and change the copied policy map or policer. To use the new policy map instead of the generated one, remove the generated policy map from the interface, and apply the new policy map.

To display the QoS configuration that is automatically generated when auto-QoS is enabled, enable debugging before you enable auto-QoS. Use the debug auto qos privileged EXEC command to enable auto-QoS debugging.

The following policy maps and class maps are created and applied when running the auto qos voip trust command:

Policy maps:

  • AutoQos-4.0-Trust-Cos-Input-Policy

  • AutoQos-4.0-Output-Policy

Class maps:

  • class-default (match-any)

  • AutoQos-4.0-Output-Priority-Queue (match-any)

  • AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)

  • AutoQos-4.0-Output-Trans-Data-Queue (match-any)

  • AutoQos-4.0-Output-Bulk-Data-Queue (match-any)

  • AutoQos-4.0-Output-Scavenger-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)

The following policy maps and class maps are created and applied when running the auto qos voip cisco-softphone command:

Policy maps:

  • AutoQos-4.0-CiscoSoftPhone-Input-Policy

  • AutoQos-4.0-Output-Policy

Class maps:

  • AutoQos-4.0-Voip-Data-Class (match-any)

  • AutoQos-4.0-Voip-Signal-Class (match-any)

  • AutoQos-4.0-Multimedia-Conf-Class (match-any)

  • AutoQos-4.0-Bulk-Data-Class (match-any)

  • AutoQos-4.0-Transaction-Class (match-any)

  • AutoQos-4.0-Scavanger-Class (match-any)

  • AutoQos-4.0-Signaling-Class (match-any)

  • AutoQos-4.0-Default-Class (match-any)

  • class-default (match-any)

  • AutoQos-4.0-Output-Priority-Queue (match-any)

  • AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)

  • AutoQos-4.0-Output-Trans-Data-Queue (match-any)

  • AutoQos-4.0-Output-Bulk-Data-Queue (match-any)

  • AutoQos-4.0-Output-Scavenger-Queue (match-any)

  • AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)

The following policy maps and class maps are created and applied when running the auto qos voip cisco-phone command:

Policy maps:

  • service-policy input AutoQos-4.0-CiscoPhone-Input-Policy

  • service-policy output AutoQos-4.0-Output-Policy

Class maps:

  • class AutoQos-4.0-Voip-Data-CiscoPhone-Class

  • class AutoQos-4.0-Voip-Signal-CiscoPhone-Class

  • class AutoQos-4.0-Default-Class

To disable auto-QoS on a port, use the no auto qos voip interface configuration command. Only the auto-QoS-generated interface configuration commands for this port are removed. If this is the last port on which auto-QoS is enabled and you enter the no auto qos voip command, auto-QoS is considered disabled even though the auto-QoS-generated global configuration commands remain (to avoid disrupting traffic on other ports affected by the global configuration).

The device configures egress queues on the port according to the settings in this table.

Table 6. Auto-QoS Configuration for the Egress Queues

Egress Queue

Queue Number

CoS-to-Queue Map

Queue Weight (Bandwidth)

Queue (Buffer) Size for Gigabit-Capable Ports

Queue (Buffer) Size for 10/100 Ethernet Ports

Priority (shaped)

1

4, 5

Up to 100 percent

25 percent

15 percent

SRR shared

2

2, 3, 6, 7

10 percent

25 percent

25 percent

SRR shared

3

0

60 percent

25 percent

40 percent

SRR shared

4

1

20 percent

25 percent

20 percent

Examples

The following is an example of the auto qos voip trust command and the applied policies and class maps: 


Device(config)# interface gigabitEthernet1/0/31
Device(config-if)# auto qos voip trust
Device(config-if)# end
Device# show policy-map interface GigabitEthernet1/0/31

GigabitEthernet1/0/31

  Service-policy input: AutoQos-4.0-Trust-Cos-Input-Policy

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        cos cos table AutoQos-4.0-Trust-Cos-Table

  Service-policy output: AutoQos-4.0-Output-Policy

    queue stats for all priority classes:
      Queueing
      priority level 1

      (total drops) 0
      (bytes output) 0

    Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
      0 packets
      Match:  dscp cs4 (32) cs5 (40) ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      Priority: 30% (300000 kbps), burst bytes 7500000,

      Priority Level: 1

    Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
      0 packets
      Match:  dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue-limit dscp 16 percent 80
      queue-limit dscp 24 percent 90
      queue-limit dscp 48 percent 100
      queue-limit dscp 56 percent 100

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%

      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
      0 packets
      Match:  dscp af41 (34) af42 (36) af43 (38)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  4
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
      0 packets
      Match:  dscp af21 (18) af22 (20) af23 (22)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  2
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
      0 packets
      Match:  dscp af11 (10) af12 (12) af13 (14)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  1
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 4%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
      0 packets
      Match:  dscp cs1 (8)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 1%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
      0 packets
      Match:  dscp af31 (26) af32 (28) af33 (30)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 25%
      queue-buffers ratio 25

The following is an example of the auto qos voip cisco-phone command and the applied policies and class maps: 

 
Device(config)# interface gigabitEthernet1/0/5
Device(config-if)# auto qos voip cisco-phone
Device(config-if)# end
Device# show policy-map interface gigabitEthernet1/0/5

GigabitEthernet1/0/5

  Service-policy input: AutoQos-4.0-CiscoPhone-Input-Policy

    Class-map: AutoQos-4.0-Voip-Data-CiscoPhone-Class (match-any)
      0 packets
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp ef
      police:
          cir 128000 bps, bc 8000 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Voip-Signal-CiscoPhone-Class (match-any)
      0 packets
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp cs3
      police:
          cir 32000 bps, bc 8000 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Default-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Default
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp default

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps

  Service-policy output: AutoQos-4.0-Output-Policy

    queue stats for all priority classes:
      Queueing
      priority level 1

      (total drops) 0
      (bytes output) 0

    Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
      0 packets
      Match:  dscp cs4 (32) cs5 (40) ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      Priority: 30% (300000 kbps), burst bytes 7500000,

      Priority Level: 1

    Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
      0 packets
      Match:  dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue-limit dscp 16 percent 80
      queue-limit dscp 24 percent 90
      queue-limit dscp 48 percent 100
      queue-limit dscp 56 percent 100

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%

      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
      0 packets
      Match:  dscp af41 (34) af42 (36) af43 (38)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  4
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
      0 packets
      Match:  dscp af21 (18) af22 (20) af23 (22)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  2
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
      0 packets
      Match:  dscp af11 (10) af12 (12) af13 (14)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  1
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 4%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
      0 packets
      Match:  dscp cs1 (8)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 1%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
      0 packets
      Match:  dscp af31 (26) af32 (28) af33 (30)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 25%
      queue-buffers ratio 25

The following is an example of the auto qos voip cisco-softphone command and the applied policies and class maps: 


Device(config)# interface gigabitEthernet1/0/20
Device(config-if)# auto qos voip cisco-softphone
Device(config-if)# end
Device# show policy-map interface gigabitEthernet1/0/20

 GigabitEthernet1/0/20

  Service-policy input: AutoQos-4.0-CiscoSoftPhone-Input-Policy

    Class-map: AutoQos-4.0-Voip-Data-Class (match-any)
      0 packets
      Match:  dscp ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp ef
      police:
          cir 128000 bps, bc 8000 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Voip-Signal-Class (match-any)
      0 packets
      Match:  dscp cs3 (24)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp cs3
      police:
          cir 32000 bps, bc 8000 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Multimedia-Conf-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-MultiEnhanced-Conf
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp af41
      police:
          cir 5000000 bps, bc 156250 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          drop
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Bulk-Data-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Bulk-Data
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp af11
      police:
          cir 10000000 bps, bc 312500 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Transaction-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Transactional-Data
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp af21
      police:
          cir 10000000 bps, bc 312500 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Scavanger-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Scavanger
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp cs1
      police:
          cir 10000000 bps, bc 312500 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          drop
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Signaling-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Signaling
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp cs3
      police:
          cir 32000 bps, bc 8000 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          drop
        conformed 0000 bps, exceed 0000 bps

    Class-map: AutoQos-4.0-Default-Class (match-any)
      0 packets
      Match: access-group name AutoQos-4.0-Acl-Default
        0 packets, 0 bytes
        5 minute rate 0 bps
      QoS Set
        dscp default
      police:
          cir 10000000 bps, bc 312500 bytes
        conformed 0 bytes; actions:
          transmit
        exceeded 0 bytes; actions:
          set-dscp-transmit dscp table policed-dscp
        conformed 0000 bps, exceed 0000 bps

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps

  Service-policy output: AutoQos-4.0-Output-Policy

    queue stats for all priority classes:
      Queueing
      priority level 1

      (total drops) 0
      (bytes output) 0

    Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
      0 packets
      Match:  dscp cs4 (32) cs5 (40) ef (46)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  5
        0 packets, 0 bytes
        5 minute rate 0 bps
      Priority: 30% (300000 kbps), burst bytes 7500000,

      Priority Level: 1

    Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
      0 packets
      Match:  dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  3
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue-limit dscp 16 percent 80
      queue-limit dscp 24 percent 90
      queue-limit dscp 48 percent 100
      queue-limit dscp 56 percent 100

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%

      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
      0 packets
      Match:  dscp af41 (34) af42 (36) af43 (38)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  4
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
      0 packets
      Match:  dscp af21 (18) af22 (20) af23 (22)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  2
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
      0 packets
      Match:  dscp af11 (10) af12 (12) af13 (14)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Match: cos  1
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 4%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
      0 packets
      Match:  dscp cs1 (8)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 1%
      queue-buffers ratio 10

    Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
      0 packets
      Match:  dscp af31 (26) af32 (28) af33 (30)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 10%
      queue-buffers ratio 10

    Class-map: class-default (match-any)
      0 packets
      Match: any
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing

      (total drops) 0
      (bytes output) 0
      bandwidth remaining 25%
      queue-buffers ratio 25

You can verify your settings by entering the show auto qos interface interface-id privileged EXEC command.

debug auto qos

To enable debugging of the automatic quality of service (auto-QoS) feature, use the debug auto qos command in privileged EXEC mode. Use the no form of this command to disable debugging.

debug auto qos

no debug auto qos

Syntax Description

This command has no arguments or keywords.

Command Default

Auto-QoS debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release

Modification

Cisco IOS XE 3.2SE

This command was introduced.

Usage Guidelines

To display the QoS configuration that is automatically generated when auto-QoS is enabled, enable debugging before you enable auto-QoS. You enable debugging by entering the debug auto qos privileged EXEC command.

The undebug auto qos command is the same as the no debug auto qos command.

When you enable debugging on a device stack, it is enabled only on the active device. To enable debugging on a stack member, you can start a session from the active device by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the active device to enable debugging on a member device without first starting a session.

Examples

This example shows how to display the QoS configuration that is automatically generated when auto-QoS is enabled: 


Device# debug auto qos
AutoQoS debugging is on
Device# configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Device(config)# interface gigabitethernet2/0/1
Device(config-if)# auto qos voip cisco-phone

show auto qos

To display the quality of service (QoS) commands entered on the interfaces on which automatic QoS (auto-QoS) is enabled, use the show auto qos command in privileged EXEC mode.

show auto qos [interface [interface-id] ]

Syntax Description

interface [interface-id]

(Optional) Displays auto-QoS information for the specified port or for all ports. Valid interfaces include physical ports.

Command Modes

User EXEC

Privileged EXEC

Command History

Release

Modification

Cisco IOS XE 3.2SE

This command was introduced.

Usage Guidelines

The show auto qos command output shows only the auto qos command entered on each interface. The show auto qos interface interface-id command output shows the auto qos command entered on a specific interface.

Use the show running-config privileged EXEC command to display the auto-QoS configuration and the user modifications.

Beginning in Cisco IOS Release 12.2(40)SE, the show auto qos command output shows the service policy information for the Cisco IP phone.

Examples

This is an example of output from the show auto qos command after the auto qos voip cisco-phone and the auto qos voip cisco-softphone interface configuration commands are entered: 


Device# show auto qos
GigabitEthernet2/0/4
auto qos voip cisco-softphone

GigabitEthernet2/0/5
auto qos voip cisco-phone


GigabitEthernet2/0/6
auto qos voip cisco-phone

This is an example of output from the show auto qos interface interface-id command when the auto qos voip cisco-phone interface configuration command is entered: 


Device# show auto qos interface gigabitethernet 2/0/5
GigabitEthernet2/0/5
auto qos voip cisco-phone

This is an example of output from the show auto qos interface interface-id command when the auto qos voip cisco-phone interface configuration command is entered: 


Device# show auto qos interface gigabitethernet1/0/2
GigabitEthernet1/0/2
auto qos voip cisco-phone

These are examples of output from the show auto qos interface interface-id command when auto-QoS is disabled on an interface: 


Device# show auto qos interface gigabitethernet3/0/1
AutoQoS is disabled