Aggregate EtherChannel Quality of Service

The Aggregate EtherChannel Quality of Service (QoS) feature allows you to apply an aggregate egress-queuing policy-map on a port-channel main interface or subinterface. This feature enables QoS support on the aggregate port-channel main interface for the Cisco ASR 1000 Series Aggregation Services Routers.

Restrictions for Aggregate EtherChannel Quality of Service

  • The configuration of QoS on Ethernet Virtual Circuit (EVC) with an aggregate port-channel interface is not supported.

  • Point-to-Point Protocol over Ethernet (PPPoE) and IP over Ethernet (IPoE) sessions in the context of the Intelligent Services Gateway (ISG) and Intelligent Wireless Access Gateway (iWAG) (with or without QoS) across an aggregate port-channel interface is not supported.

  • Virtual Private LAN Services (VPLS) with QoS on an aggregate port-channel interface is not supported.

  • Xconnect with QoS on an aggregate port-channel interface is not supported.

  • The use of fragment and service-fragment Modular QoS CLI (MQC) keywords in conjunction with the aggregate port-channel interface type is not supported.

  • The aggregate-type port-channel interfaces have the following limitations:

    • All the member links of a port channel must be of the same speed. This prevents a potential packet reordering issue. It is not supported to combine Gigabit Ethernet, Fast Ethernet, or Ethernet interfaces into the same port channel.

    • 10-Gigabit Ethernet is supported in Cisco IOS XE 3.16.3 or later (it is not supported in Cisco IOS XE 3.17). 10-Gigabit Ethernet is also supported in Cisco IOS XE Denali 16.3 and later.

  • MPOL policy applied on both aggregate port-channel main interface and port-channel sub-interface is not supported by any Cisco IOS XE 3S release and is not supported on Cisco IOS XE Everest 16.5.x or earlier.

  • QoS on an aggregate port-channel subinterface is not supported for Cisco IOS XE 3.16.2 or earlier (and it is also not supported in Cisco IOS XE 3.17).

Information About Aggregate EtherChannel Quality of Service

Supported Features for Aggregate EtherChannel Quality of Service

The Aggregate EtherChannel Quality of Service feature supports:

  • Flow-based load balancing

  • Up to three levels of hierarchy

  • Configuration of shaping, absolute bandwidth, and relative bandwidth

  • A minimum amount of bandwidth for subclasses (VLANs)

  • Input QoS (policing and marking) and output QoS (all queuing features) that are enabled simultaneously on an aggregate port-channel main interface and subinterface

Unsupported Feature Combinations for Aggregate EtherChannel Quality of Service

The following combinations of tunnel-type interfaces with QoS are not supported:

  • Generic Routing Encapsulation (GRE) tunnels with queuing policy-maps applied, which egress via a port channel with aggregate queuing

  • Static virtual tunnel interface (SVTI) and dynamic virtual tunnel interface (DVTI ) with queuing QoS applied, which egress via a port channel with aggregate queuing

  • Sub-interface belongs to service group and sub-interface applied with service-policy cannot be configured on the same aggregate port-channel simultaneously

  • MPOL - policy applied on both aggregate port-channel main interface and port-channel sub-interface


Note
Tunnels without queuing QoS (described above) are supported, but are not recommended because hashing algorithms may overload a given physical interface without adequate diversity in IP addresses.

Scalability for Aggregate EtherChannel Quality of Service

The QoS policy can be applied to an aggregate port-channel interface subject to the following scalability limits:

  • Up to 8 port channels

  • Up to 4 member links in a port channel

  • Member links can be split across multiple shared port adapters (SPAs) and SPA interface processor (SIP) cards

How to Configure Aggregate EtherChannel Quality of Service

This procedure describes how to configure Aggregate EtherChannel QoS on the Cisco ASR 1000 Series Aggregation Services Routers.

SUMMARY STEPS

    1.    enable

    2.    configure terminal

    3.    platform qos port-channel-aggregate port-channel-number

    4.    interface port-channel port-channel-number

    5.    service-policy {output} policy-map

    6.    service-policy {input} policy-map


DETAILED STEPS
     Command or ActionPurpose
    Step 1enable


    Example: 
    Router> enable
     

    Enables privileged EXEC mode.

    Enter your password if prompted.

     

    Step 2configure terminal


    Example: 
    Router# configure terminal
     

    Enters global configuration mode.

     

    Step 3platform qos port-channel-aggregate port-channel-number


    Example: 
    router(config)# platform qos port-channel-aggregate 1
     

    Enables the aggregate port-channel interface.

     

    Step 4interface port-channel port-channel-number


    Example: 
    router(config)# interface port-channel 1
     

    Enters interface configuration mode to configure a specific port channel.

     

    Step 5service-policy {output} policy-map


    Example: 
    router(config-if)# service-policy output egress_policy
     

    Attaches a policy-map to an output interface to be used as the service policy for that interface.

     

    Step 6service-policy {input} policy-map


    Example: 
    router(config-if)# service-policy input ingress_policy
     

    Attaches a policy-map to an input interface to be used as the service policy for that interface.

     

    How to Unconfigure Aggregate EtherChannel Quality of Service

    This procedure describes how to unconfigure Aggregate EtherChannel QoS on the Cisco ASR 1000 Series Aggregation Services Routers.

    SUMMARY STEPS

      1.    enable

      2.    configure terminal

      3.    no interface port-channel port-channel-number

      4.    no platform qos port-channel-aggregate port-channel-number


    DETAILED STEPS
       Command or ActionPurpose
      Step 1enable


      Example: 
      Router> enable
       

      Enables privileged EXEC mode.

      Enter your password if prompted.

       

      Step 2configure terminal


      Example: 
      Router# configure terminal
       

      Enters global configuration mode.

       

      Step 3no interface port-channel port-channel-number


      Example: 
      router(config)# no interface port-channel 1
       

      Unconfigures a specific port channel.

       

      Step 4no platform qos port-channel-aggregate port-channel-number


      Example: 
      router(config)# no platform qos port-channel-aggregate 1
       

      Disables the aggregate port-channel interface and removes the required QoS policies on it.

       

      Configuration Examples for Aggregate EtherChannel Quality of Service

      Example: Configuring Aggregate Port-Channel Interface

      Router# configure terminal
Router(config)# platform qos port-channel-aggregate 1
Router(config)# interface port-channel 1
Router(config-if)# interface GigabitEthernet1/0/1
Router(config-if)# channel-group 1
Router(config-if)# interface GigabitEthernet1/0/0
Router(config-if)# channel-group 1
Router(config-if)# interface port-channel 1.1
Router(config-subif)# encap
Router(config-subif)# encapsulation dot
Router(config-subif)# encapsulation dot1Q 2
Router(config-subif)# ip addr 14.0.1.2 255.255.255.0
Router(config-subif)# interface port-channel 1.2
Router(config-subif)# encapsulation dot1Q 3
Router(config-subif)# ip addr 14.0.2.2 255.255.255.0
Router(config-subif)# interface port-channel 1.3
Router(config-subif)# encapsulation dot1Q 4
Router(config-subif)# ip addr 14.0.3.2 255.255.255.0
Router(config-subif)# end

      Example: Configuring a Class Map for QoS

      Router# configure terminal
Router(config)# class-map vlan_2
Router(config-cmap)# match vlan  2
Router(config-cmap)# class-map vlan_3
Router(config-cmap)# match vlan  3
Router(config-cmap)# class-map vlan_4
Router(config-cmap)# match vlan  4
Router(config-cmap)# class-map prec1
Router(config-cmap)# match precedence 1
Router(config-cmap)# class-map prec2
Router(config-cmap)# match precedence 2
Router(config-cmap)# class-map prec3
Router(config-cmap)# match precedence 3
Router(config-cmap)# class-map prec4
Router(config-cmap)# match precedence 4
Router(config-cmap)# end

      Example: Configuring a Policy-Map for QoS

      Router# configure terminal
Router(config)# policy-map child-vlan
Router(config-pmap)# class prec1
Router(config-pmap-c)# police cir percent 20
Router(config-pmap-c-police)# exit
Router(config-pmap-c)# priority level 1
Router(config-pmap-c)# class prec2
Router(config-pmap-c)# police cir percent 40
Router(config-pmap-c-police)# exit
Router(config-pmap-c)# priority level 2
Router(config-pmap-c)# class prec3
Router(config-pmap-c)# bandwidth remaining ratio 3
Router(config-pmap-c)# class class-default
Router(config-pmap-c)# bandwidth remaining ratio 1
Router(config-pmap-c)# random-detect
Router(config-pmap-c)#!
Router(config-pmap-c)# policy-map egress_policy
Router(config-pmap)# class vlan_2
Router(config-pmap-c)# shape average 100000000
Router(config-pmap-c)# service-policy child-vlan
Router(config-pmap-c)# class vlan_3
Router(config-pmap-c)# shape average 200000000
Router(config-pmap-c)# service-policy child-vlan
Router(config-pmap-c)# class vlan_4
Router(config-pmap-c)# shape average 300000000
Router(config-pmap-c)# service-policy child-vlan
Router(config-pmap-c)#!
Router(config-pmap-c)# policy-map ingress_policy
Router(config-pmap)# class vlan_2
Router(config-pmap-c)# police cir 80000000
Router(config-pmap-c-police)# conform-action set-prec-transmit 1
Router(config-pmap-c-police)# class vlan_2
Router(config-pmap-c)# set dscp AF21
Router(config-pmap-c)# class class-default
Router(config-pmap-c)# set dscp 0
Router(config-pmap-c)# end

      Example: Applying QoS to Port Channel Interface

      Router# configure terminal
Router(config)# interface port-channel 1
Router(config-if)# service-policy output egress_policy
Router(config-if)# service-policy input ingress_policy
Router(config-if)# end

      How to Configure Aggregate EtherChannel Subinterface Quality of Service

      SUMMARY STEPS

        1.    enable

        2.    configure terminal

        3.    platform qos port-channel-aggregate port-channel-number

        4.    interface port-channel port-channel-number

        5.    interface port-channel port-channel-number.subinterface-number

        6.    service-policy {output} policy-map

        7.    service-policy {input} policy-map

        8.    end


      DETAILED STEPS
         Command or ActionPurpose
        Step 1enable


        Example: 
        Device> enable
         

        Enables privileged EXEC mode.

        Enter your password if prompted.

         

        Step 2configure terminal


        Example: 
        Device# configure terminal
         

        Enters global configuration mode.

         

        Step 3platform qos port-channel-aggregate port-channel-number


        Example: 
        Device(config)# platform qos port-channel-aggregate 1
         

        Enables the aggregate port-channel interface.

         

        Step 4interface port-channel port-channel-number


        Example: 
        Device(config)# interface port-channel 1
         

        Enters interface configuration mode to configure a specific port channel.

         

        Step 5interface port-channel port-channel-number.subinterface-number


        Example: 
        Device(config)# interface port-channel 1.2
         

        Enters interface configuration mode to configure a specific port channel subinterface.

         

        Step 6service-policy {output} policy-map


        Example: 
        Device(config-if)# service-policy output egress_policy
         

        Attaches a policy-map to an output interface to be used as the service policy for that interface.

         

        Step 7service-policy {input} policy-map


        Example: 
        Device(config-if)# service-policy input ingress_policy
         

        Attaches a policy-map to an input interface to be used as the service policy for that interface.

         

        Step 8 end


        Example: 
        Device(config)# end
         

        Exits global configuration mode.

         

        How to Unconfigure Aggregate EtherChannel Subinterface Quality of Service

        SUMMARY STEPS

          1.    enable

          2.    configure terminal

          3.    no interface port-channel port-channel-number.subinterface

          4.    no platform qos port-channel-aggregate port-channel-number

          5.    end


        DETAILED STEPS
           Command or ActionPurpose
          Step 1enable


          Example: 
          Device> enable
           

          Enables privileged EXEC mode.

          Enter your password if prompted.

           

          Step 2configure terminal


          Example: 
          Device# configure terminal
           

          Enters global configuration mode.

           

          Step 3no interface port-channel port-channel-number.subinterface


          Example: 
          Device(config)# no interface port-channel 1.2
           

          Unconfigures a specific port channel subinterface.

           

          Step 4no platform qos port-channel-aggregate port-channel-number


          Example: 
          Device(config)# no platform qos port-channel-aggregate 1
           

          Disables the aggregate port-channel interface and removes the required QoS policies on it.

           

          Step 5 end


          Example: 
          Device(config)# end
           

          Exits global configuration mode.

           

          Configuration Examples for Aggregate EtherChannel Subinterface Quality of Service

          Example: Configuring Aggregate Port-Channel Interface and Subinterface

          Device# configure terminal
Device(config)# platform qos port-channel-aggregate 2
Device(config)# interface port-channel 2
Device(config-if)# interface GigabitEthernet1/1/1
Device(config-if)# channel-group 2
Device(config-if)# interface GigabitEthernet1/1/0
Device(config-if)# channel-group 2
Device(config-if)# interface port-channel 2.200
Device(config-subif)# encapsulation dot1Q 200
Device(config-subif)# ip addr 15.0.1.2 255.255.255.0
Device(config-subif)# interface port-channel 2.300
Device(config-subif)# encapsulation dot1Q 300
Device(config-subif)# ip addr 15.0.2.2 255.255.255.0
Device(config-subif)# end

          Example: Configuring a Class Map for QoS

          Device# configure terminal
Device(config)# class-map vlan_2
Device(config-cmap)# match vlan  2
Device(config-cmap)# class-map vlan_3
Device(config-cmap)# match vlan  3
Device(config-cmap)# class-map vlan_4
Device(config-cmap)# match vlan  4
Device(config-cmap)# class-map prec1
Device(config-cmap)# match precedence 1
Device(config-cmap)# class-map prec2
Device(config-cmap)# match precedence 2
Device(config-cmap)# class-map prec3
Device(config-cmap)# match precedence 3
Device(config-cmap)# class-map prec4
Device(config-cmap)# match precedence 4
Device(config-cmap)# end

          Example: Configuring a Policy-Map for QoS

          Device# configure terminal
Device(config)# policy-map subinterface_child
Device(config-pmap)# class prec1
Device(config-pmap-c)# police cir percent 30
Device(config-pmap-c-police)# exit
Device(config-pmap-c)# priority level 1
Device(config-pmap-c)# class prec2
Device(config-pmap-c)# police cir percent 30
Device(config-pmap-c-police)# exit
Device(config-pmap-c)# priority level 2
Device(config-pmap-c)# class prec3
Device(config-pmap-c)# bandwidth remaining ratio 3
Device(config-pmap-c)# class class-default
Device(config-pmap-c)# bandwidth remaining ratio 1
Device(config-pmap-c)#!
Device(config-pmap-c)# policy-map sub_egress_policy
Device(config-pmap-c)# class class-default
Device(config-pmap-c)# shape average 300000000
Device(config-pmap-c)# service-policy subinterface_child
Device(config-pmap-c)#!
Device(config-pmap-c)# policy-map sub_ingress_policy
Device(config-pmap)# class class-default
Device(config-pmap-c)# police cir 80000000
Device(config-pmap-c)# end

          Example: Applying QoS to Port Channel Subinterface

          Device# configure terminal
Device(config)# interface port-channel 2.200
Device(config-if)# service-policy output egress_policy
Device(config-if)# service-policy input ingress_policy
Device(config)# interface port-channel 2.300
Device(config-if)# service-policy output egress_policy
Device(config-if)# service-policy input ingress_policy
Device(config-if)# end

          Additional References

          Related Documents

          Related Topic

          Document Title

          Cisco IOS commands

          Cisco IOS Master Commands List, All Releases

          QoS commands

          Cisco IOS Quality of Service Solutions Command Reference

          MIBs

          MIB

          MIBs Link

          No new or modified MIBs are supported by this feature.

          To locate and download MIBs for selected platforms, Cisco software releases, and feature sets, use Cisco MIB Locator found at the following URL:

          http:/​/​www.cisco.com/​go/​mibs

          Technical Assistance

          Description

          Link

          The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies.

          To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds.

          Access to most tools on the Cisco Support website requires a Cisco.com user ID and password.

          http:/​/​www.cisco.com/​cisco/​web/​support/​index.html

          Feature Information for Aggregate EtherChannel Quality of Service

          The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

          Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.
          Table 1 Feature Information for Aggregate EtherChannel Quality of Service

          Feature Name

          Releases

          Feature Information

          Aggregate EtherChannel Quality of Service

          Cisco IOS XE Release 3.12S

          The Aggregate EtherChannel Quality of Service (QoS) feature allows you to apply an aggregate egress-queuing policy-map on a port-channel main interface or subinterface. This feature enables QoS support on the aggregate port-channel main interface for the Cisco ASR 1000 Series Aggregation Services Routers.

          In Cisco IOS XE Release 3.12S, this feature was implemented on the Cisco ASR 1000 Series Aggregation Services Routers.

          Aggregate GEC QoS 10G support

          Cisco IOS XE Release 3.16.3S

          Cisco IOS XE Denali 16.3.1

          In Cisco IOS XE Release 3.16.3S, this feature was implemented on the Cisco ASR 1000 Series Aggregation Services Routers.

          QoS on GEC portchannel subinterface on ASR1K

          Cisco IOS XE Release 3.16.3S

          Cisco IOS XE Denali 16.3.1

          In Cisco IOS XE Release 3.16.3S, this feature was implemented on the Cisco ASR 1000 Series Aggregation Services Routers.

          QoS on GEC portchannel subinterface on ISR 4000

          Cisco IOS XE Everest 16.6.x

          In Cisco IOS XE Everest 16.6.x release, this feature was implemented on the Cisco ISR 4000 Series Integrated Services Routers.