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JUNOSe 9.1.x Quality of Service Configuration Guide > Configuring a QoS Parameter > Example: QoS Parameter Configuration for Controlling Subscriber Bandwidth

Example: QoS Parameter Configuration for Controlling Subscriber Bandwidth

The example in this section illustrates how to use parameters to control the minimum and maximum bandwidth of a subscriber. The example includes procedures for both QoS administrators and QoS clients.

Through QoS parameter definitions, the QoS administrator defines a QoS scheduler hierarchy that corresponds to the physical network topology shown in Figure 58.


Figure 58: Physical Network Topology

The S-VLAN scheduler nodes correspond to the DSLAM in the physical network topology; the VLAN scheduler nodes correspond to the subscribers.

Figure 59 shows the QoS scheduler hierarchy that the QoS client creates when configuring a different service for each subscriber.


Figure 59: QoS Scheduler Hierarchy

For Subscriber 1, the QoS client configures a basic best-effort data service, with a maximum rate of 2 Mbps, and assigns a scheduler weight value of 1.

For Subscriber 2, the QoS client configures a basic triple-play service consisting of voice, video, and best-effort data services. This service enables the subscriber to transmit up to 6 Mbps of combined voice, video, and best-effort data traffic. The service limits video traffic to 2 Mbps and enables low-latency bandwidth for one 100 Kbps voice call. The QoS client then assigns this subscriber a scheduler weight value of 3, enabling this subscriber to claim up to three times the bandwidth than the basic data service configured for Subscriber 1.

For Subscriber 3, the QoS client configures an enhanced triple-play service consisting of voice, video and best-effort data services. This enhanced triple-play service enables the subscriber to transmit up to 8 Mbps of combined voice, video, and best-effort data traffic. This service limits video traffic to 3 Mbps and enables low-latency bandwidth for up to three 100 Kbps voice calls. The QoS client then assigns this subscriber a scheduler weight value of 6, enabling this subscriber to claim up to six times the bandwidth of the basic data service subscriber configured for Subscriber 1, and up to twice the bandwidth of the basic triple-play subscriber configured for Subscriber 2.

Procedure for QoS Administrators

This section describes the procedures to configure the scheduler hierarchy shown in Figure 59 by using QoS parameters.

Configuring Traffic Classes and Traffic Class Groups

The QoS administrator configures traffic classes and traffic-class groups for best-effort data, video, and voice services.

  1. Configure the traffic classes.
  1. Configure the traffic class named best-effort.
  2. Configure the traffic class named video.
  3. Configure the traffic class named voice.
  4. Enable the voice traffic class to provide a strict priority treatment throughout the fabric.
    5. host1(config)#traffic-class best-effort

    host1(config-traffic-class)#exit

    

    host1(config)#traffic-class video

    host1(config-traffic-class)#exit

    

    host1(config)#traffic-class voice

    host1(config-traffic-class)#fabric-strict-priority

    host1(config-traffic-class)#exit
  1. Configure a traffic-class group for low-latency expedited forwarding (EF) and add the voice traffic class into the traffic-class group EF.
  1. Configure the EF traffic-class group with strict-priority scheduling.
  2. Add the voice traffic class to the traffic-class group.
    3. host1(config)#traffic-class-group EF auto-strict-priority

    host1(config-traffic-class-group)#traffic-class voice

    host1(config-traffic-class-group)#exit

The remaining traffic classes, best-effort and video, remain in the default traffic-class group.

Configuring the Parameter Definitions

After configuring the traffic classes and traffic-class groups, the QoS administrator configures the parameter definitions for Subscribers 1, 2, and 3.

  1. Configure a parameter definition for the maximum subscriber bandwidth.
  1. Configure the parameter definition named max-subscriber-bandwidth.
  2. Enable the parameter to control VLANs.
  3. Enable the parameter to have instances created on VLAN subinterfaces.
  4. Specify the valid range of this parameter as 512 Kbps–8 Mbps. 
    5. host1(config)#qos-parameter-define max-subscriber-bandwidth

    host1(config-qos-parameter-define)#controlled-interface-type vlan

    host1(config-qos-parameter-define)#instance-interface-type vlan

    host1(config-qos-parameter-define)#range 512000 8192000

    host1(config-qos-parameter-define)#exit
  1. Configure a parameter definition for a subscriber's weight in the hierarchical round-robin (HRR) scheduler. This parameter is used to provide different scheduler weights for each of the three service offerings.
  1. Configure the parameter definition named subscriber-weight.
  2. Enable the parameter to control VLANs.
  3. Enable the parameter to have instances created on VLAN subinterfaces.
  4. Specify the valid range of this parameter as 1–6. 
    5. host1(config)#qos-parameter-define subscriber-weight

    host1(config-qos-parameter-define)#controlled-interface-type vlan

    host1(config-qos-parameter-define)#instance-interface-type vlan

    host1(config-qos-parameter-define)#range 1 6

    host1(config-qos-parameter-define)#exit
  1. Configure a parameter definition for the subscriber's maximum video bandwidth. By creating a parameter instance on S-VLANs, the QoS administrator can specify a subscriber's maximum video bandwidth for each DSLAM in the hierarchy.
  1. Configure the parameter definition named max-subscriber-video-bandwidth.
  2. Enable the parameter to control VLANs.
  3. Enable the parameter to have instances created on both SVLAN and VLAN subinterfaces.
  4. Specify the valid range of this parameter as 1 Mbps–5 Mbps.
    5. host1(config)#qos-parameter-define max-subscriber-video-bandwidth

    host1(config-qos-parameter-define)#controlled-interface-type vlan

    host1(config-qos-parameter-define)#instance-interface-type vlan

    host1(config-qos-parameter-define)#instance-interface-type svlan

    host1(config-qos-parameter-define)#range 1000000 5000000

    host1(config-qos-parameter-define)#exit
  1. Configure a parameter definition for the maximum number of 100 Kbps voice calls supported for the subscriber.
  1. Configure the parameter definition named max-100Kbps-voice-calls.
  2. Enable the parameter to control VLANs.
  3. Enable the parameter to have instances created on VLAN subinterfaces.
  4. Specify the valid range of this parameter as 1–3.
    5. host1(config)#qos-parameter-define max-100Kbps-voice-calls

    host1(config-qos-parameter-define)#controlled-interface-type vlan

    host1(config-qos-parameter-define)#instance-interface-type vlan

    host1(config-qos-parameter-define)#range 1 3

    host1(config-qos-parameter-define)#exit

Configuring the Scheduler Profiles

The QoS administrator can then reference the parameter definitions within a scheduler profile, which defines the shaping rates for the parameter.

  1. Configure a scheduler profile to specify the maximum bandwidth of the subscriber's best-effort data.
  1. Configure the scheduler profile named subscriber-best-effort.
  2. Configure the shared-shaping rate by referencing the max-subscriber-bandwidth parameter and choosing automatic shared shaping.
    3. host1(config)#scheduler-profile subscriber-best-effort

    host1(config-scheduler-profile)#shared-shaping-rate max-subscriber-bandwidth 
auto

    host1(config-scheduler-profile)#exit
  1. Configure a scheduler profile to specify the maximum bandwidth of the subscriber's video service.
  1. Configure the scheduler profile named subscriber-video.
  2. Configure the shaping rate by referencing the max-subscriber-video-bandwidth parameter.
    3. host1(config)#scheduler-profile subscriber-video

    host1(config-scheduler-profile)#shaping-rate max-subscriber-video-bandwidth

    host1(config-scheduler-profile)#exit
  1. Configure a scheduler profile for the subscriber's weight within the HRR scheduler.
  1. Configure the scheduler profile named subscriber-weight.
  2. Configure the weight using the default for the subscriber-weight parameter.
    3. host1(config)#scheduler-profile subscriber-weight

    host1(config-scheduler-profile)#weight subscriber-weight

    host1(config-scheduler-profile)#exit
  1. Configure a scheduler profile for the subscriber's voice service.
  1. Configure the scheduler profile named subscriber-voice.
  2. Configure the shaping rate by referencing the max-100Kbps-voice-calls parameter and multiplying it by 100 Kbps of voice calls.
    3. host1(config)#scheduler-profile subscriber-voice

    host1(config-scheduler-profile)#shaping-rate max-100Kbps-voice-calls * 100000

    host1(config-scheduler-profile)#exit

Configuring the QoS Profiles

By referencing the scheduler profiles within QoS profiles, the QoS administrator creates the scheduler hierarchy. In this portion of the example, the QoS administrator configures QoS profiles for the best-effort data and triple-play service offerings.

  1. Define a QoS profile for the best-effort data service.
  1. Create the QoS profile named subscriber-data-service.
  2. Create a node for S-VLAN subinterfaces.
  3. Specify a node for VLAN subinterfaces and reference the subscriber-weight scheduler profile.
  4. Specify a queue for VLAN subinterfaces, referencing the best-effort traffic class and the subscriber-best-effort scheduler-profile.
    5. host1(config)#qos-profile subscriber-data-service

    host1(config-qos-profile)#svlan node

    host1(config-qos-profile)#vlan node scheduler-profile subscriber-weight

    host1(config-qos-profile)#vlan queue traffic-class best-effort scheduler-profile 
subscriber-best-effort

    host1(config-qos-profile)#exit

The best-effort queue rule for VLAN subinterfaces refers to the subscriber-best-effort scheduler profile. The scheduler profile refers to the max-subscriber-bandwidth parameter that controls the maximum rate of this subscriber's best-effort queue.

  1. Define a QoS profile for the triple-play service and specify S-VLAN nodes and VLAN nodes.
  1. Create a QoS profile named subscriber-triple-play.
  2. Specify a node for S-VLAN subinterfaces.
  3. Specify a node for VLAN subinterfaces and reference the subscriber-weight scheduler profile.
  4. Specify a node for S-VLAN subinterfaces and reference the EF traffic-class group.
  5. Specify a queue for VLAN subinterfaces, referencing the best-effort traffic class and the subscriber-best-effort scheduler profile.
  6. Specify a queue for VLAN subinterfaces, referencing the video traffic class and the subscriber-video scheduler profile.
  7. Specify a queue for VLAN subinterfaces, referencing the voice traffic-class and the subscriber-voice scheduler profile.
    8. host1(config)#qos-profile subscriber-triple-play

    host1(config-qos-profile)#svlan node

    host1(config-qos-profile)#vlan node scheduler-profile subscriber-weight

    host1(config-qos-profile)#svlan node group EF

    host1(config-qos-profile)#vlan queue traffic-class best-effort scheduler-profile 
subscriber-best-effort

    host1(config-qos-profile)#vlan queue traffic-class video scheduler-profile 
subscriber-video

    host1(config-qos-profile)#vlan queue traffic-class voice scheduler-profile 
subscriber-voice

    host1(config-qos-profile)#exit

VLAN queues are used for each service. The VLAN queue rules reference scheduler profiles that define the scheduler rates for the service.

  1. Configure a QoS profile and attach to all Fast Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet interfaces in the chassis.
  1. Create a QoS profile named ethernet-default.
  2. Remove the QoS profile rule for creating IP nodes.
  3. Remove the IP queue for the best-effort traffic-class.
    4. host1(config)#qos-profile ethernet-default

    host1(config-qos-profile)#no ip node

    host1(config-qos-profile)#no ip queue traffic-class best-effort

    host1(config-qos-profile)#exit
  1. Configure the Fast Ethernet interface and VLAN subinterfaces.
  1. Configure the Fast Ethernet interface in slot 9, port 0.
  2. Configure the VLAN major interface.
  3. Configure the VLAN subinterface at slot 9, port 0, subinterface 1.
  4. Assign an S-VLAN ID of 2 and a VLAN ID of 1 to the VLAN subinterface.
  5. Assign an IP address to the VLAN subinterface.
  6. Repeat steps a–e to configure VLAN subinterfaces in slot 9, port 0, subinterface 2 and in slot 9, port 0, subinterface 3.
    7. host1(config)# interface fastEthernet 9/0

    host1(config-if)#encapsulation vlan

    host1(config-if)#exit

    host1(config)#interface fastEthernet 9/0.1

    host1(config-subif)#svlan id 2 1

    host1(config-subif)#ip address 192.1.1.1 255.255.255.0

    host1(config)#interface fastEthernet 9/0.2

    host1(config-subif)#svlan id 2 2

    host1(config-subif)#ip address 192.2.1.1 255.255.255.0

    host1(config-subif)#exit

    host1(config)#interface fastEthernet 9/0.3

    host1(config-subif)#svlan id 2 3

    host1(config-subif)#ip address 192.3.1.1 255.255.255.0

    host1(config-subif)#exit

Procedure for QoS Clients

This section describes procedures to create parameter instances for Subscribers 1, 2, and 3.

Creating a Global Parameter Instance

The QoS client creates global parameter instances to provide a minimal level of default service for the router. In this portion of the example, the QoS client configures 2 Mbps of data traffic and configures a scheduler weight of 1 for Subscriber 1. For Subscribers 2 and 3, the QoS client then configures a maximum of 2 Mbps of video bandwidth and 1 voice call.

To create a global parameter instance:

  1. Create a global parameter instance for max-subscriber-bandwidth with a value of 2000000.
  2. Create a global parameter instance for subscriber-weight with a value of 1.
  3. Create a global parameter instance for subscriber-video-bandwidth with a value of 2000000.
  4. Create a global parameter instance for max-100Kbps-voice-calls with a value of 1.
    5. host1(config)#qos-parameter max-subscriber-bandwidth 2000000

    host1(config)#qos-parameter subscriber-weight 1

    host1(config)#qos-parameter max-subscriber-video-bandwidth 2000000

    host1(config)#qos-parameter max-100Kbps-voice-calls 1

Creating a Global Parameter Instance for Individual DSLAMs

Instead of creating global parameter instances, the QoS client can create different parameter instances for the DSLAMs that correspond to the S-VLAN nodes shown in Figure 59. In this portion of the example, the QoS client creates 1 Mbps video streams by default on DSLAM 1, rather than the 2Mbps global parameter instance.

  1. Specify the Fast Ethernet interface in slot 9, port 0.
  2. Attach the QoS parameter max-subscriber-video-bandwidth to S-VLAN 1.
    3. host1(config)#interface fastEthernet 9/0

    host1(config-if)#svlan 1 qos-parameter max-subscriber-video-bandwidth 1000000

    host1(config-if)#exit

Creating Parameter Instances for Subscribers

The QoS client creates a parameter instance for Subscribers 1, 2, and 3.

  1. Configure the basic-data service for Subscriber 1.
  1. Specify the Fast Ethernet interface in slot 9, port 0.
  2. Attach the QoS profile subscriber-data-service to the subscriber's Fast Ethernet interface. 
    3. host1(config)#interface fastEthernet 9/0.1

    host1(config-subif)#qos-profile subscriber-data-service

    host1(config-subif)#exit

This QoS profile references the scheduler profiles, which then reference the parameter instances max-subscriber-bandwidth and subscriber-weight. These global parameter instances are created with values 2 Mbps and 1.

  1. Configure a basic triple-play service consisting of voice, video, and data services for Subscriber 2.
  1. Specify the Fast Ethernet interface in slot 9, port 0.
  2. Create a parameter instance for max-subscriber-bandwidth, enabling the subscriber to transmit up to 6 Mbps of combined voice, video, and data traffic.
  3. Create a parameter instance for subscriber-weight with a value of 3. This value enables the subscriber to claim up to three times the bandwidth of Subscriber 1, with basic data service.
  4. Create a parameter instance for max-subscriber-video-bandwidth, limiting video traffic to 2 Mbps.
  5. Create a parameter instance for max-100Kbps-voice-calls, enabling bandwidth for one 100 Kbps voice call.
  6. Attach the QoS profile subscriber-triple-play to the subscriber's interface.
    7. host1(config)#interface fastEthernet 9/0.2

    host1(config-if)#qos-parameter max-subscriber-bandwidth 6000000

    host1(config-if)#qos-parameter subscriber-weight 3

    host1(config-if)#qos-parameter max-subscriber-video-bandwidth 2000000

    host1(config-if)#qos-parameter max-100Kbps-voice-calls 1

    host1(config-if)#qos-profile subscriber-triple-play

    host1(config-if)#exit
  1. Configure a enhanced triple-play service consisting of voice, video, and data services for Subscriber 3. Enable the subscriber to have twice as much bandwidth as Subscriber 2, with basic triple-play service.
  1. Create a parameter instance for max-subscriber-bandwidth, enabling the subscriber to transmit up to 8 Mbps of combined voice, video, and data traffic.
  2. Create a parameter instance for subscriber-weight with a value of 6, enabling the subscriber to claim up to six times the bandwidth of Subscriber 1, with basic data service.
  3. Create a parameter instance for max-subscriber-video-bandwidth, limiting video traffic to 3 Mbps.
  4. Create a parameter instance for max-100Kbps-voice-calls, enabling up to three 100 Kbps voice calls.
  5. Attach the QoS profile subscriber-triple-play to the subscriber's interface.
    6. host1(config)#interface fastEthernet 9/0.3

    host1(config-if)#qos-parameter max-subscriber-bandwidth 8000000

    host1(config-if)#qos-parameter subscriber-weight 6

    host1(config-if)#qos-parameter max-subscriber-video-bandwidth 3000000

    host1(config-if)#qos-parameter max-100Kbps-voice-calls 3

    host1(config-if)#qos-profile subscriber-triple-play

    host1(config-if)#exit

Monitoring the Subscriber Configuration

After completing the configuration, both the QoS administrator and the QoS client can monitor it by issuing show commands.

  1. To display the traffic classes for best-effort, video, and voice, issue the show traffic-class command.
    2. host1#show traffic-class

    

                            fabric

      traffic     fabric    strict

       class      weight   priority

    -----------   ------   --------

    best-effort     8         no

    video           8         no

    voice           8        yes
  2. To display the traffic-class group EF, issue the show traffic-class-group command.
    3. host1#show traffic-class-group

    

    traffic-class-group EF auto-strict-priority

      traffic-class voice
  3. To display the settings for all four QoS parameter definitions (max-subscriber-bandwidth, subscriber-weight, max-subscriber-video-bandwidth, and max-100Kbps-voice-calls), issue the show qos-parameter-define command.
    4. host1#show qos-parameter-define

    

    

                                   controlled  instance   subscriber

                                   interface   interface  interface

            parameter name           types       types      types

    ------------------------------ ---------- ----------- ----------

    max-subscriber-bandwidth       vlan       vlan        <none>

    subscriber-weight              vlan       vlan        <none>

    max-subscriber-video-bandwidth vlan       vlan, svlan <none>

    max-100Kbps-voice-calls        vlan       vlan        <none>

            parameter name            value range    properties

    ------------------------------ ----------------- ----------

    max-subscriber-bandwidth       512000 - 8192000  <none>

    subscriber-weight              1 - 10            <none>

    max-subscriber-video-bandwidth 1000000 - 5000000 <none>

    max-100Kbps-voice-calls        1 - 3             <none>
  4. To display the shaping rates and burst for the four scheduler profiles (subscriber-best-effort, subscriber-video, subscriber-weight, and subscriber-voice, issue the show scheduler-profile command.
    5. host1#show scheduler-profile

    

                                                                shaping

          scheduler                    shaping rate              burst

    ----------------------   --------------------------------   -------

    default                                            <none>    <none>

    subscriber-best-effort                             <none>    <none>

    subscriber-video           max-subscriber-video-bandwidth   default

    subscriber-weight                                  <none>    <none>

    subscriber-voice         max-100Kbps-voice-calls * 100000   default

                                                  strict    assured

          scheduler               weight         priority    rate

    ----------------------   -----------------   --------   -------

    default                          8              no       <none>

    subscriber-best-effort           8              no       <none>

    subscriber-video                 8              no       <none>

    subscriber-weight        subscriber-weight      no       <none>

    subscriber-voice                 8              no       <none>

                                                        shared      shared

                                                        shaping     shaping

          scheduler            shared shaping rate       burst    constituent

    ----------------------   ------------------------   -------   -----------

    default                                    <none>    <none>        <none>

    subscriber-best-effort   max-subscriber-bandwidth   default        <none>

    subscriber-video                           <none>    <none>        <none>

    subscriber-weight                          <none>    <none>        <none>

    subscriber-voice                           <none>    <none>        <none>

                                shared

          scheduler          shaping mode

    ----------------------   -------------

    default                         <none>

    subscriber-best-effort   auto implicit

    subscriber-video                <none>

    subscriber-weight               <none>

    subscriber-voice                <none>
  5. To display the settings for the QoS profile subscriber-triple-play, issue the show qos-profile command.
    6. host1#show qos-profile subscriber-triple-play

    

    qos-profile subscriber-triple-play:

    t-class interface rule    traffic                           queue   drop

     group    type    type     class      scheduler profile    profile profile

    ------- --------- ----- ----------- ---------------------- ------- -------

            vlan      node              subscriber-weight

            svlan     node              default

            vlan      queue best-effort subscriber-best-effort default default

            vlan      queue video       subscriber-video       default default

    EF      svlan     node              default

    EF      vlan      queue voice       subscriber-voice       default default

    statistics

     profile

    ----------

    

    

    default

    default

    

    default
  6. To display the attachments on all QoS profiles, issue the show qos-profile references command.
    7. host1#show qos-profile references

    qos profile                              attachment

    --------------------------------  
--------------------------------------------

    atm-default                       (qos-port-type-profile)

    serial-default                    (qos-port-type-profile)

    ethernet-default                  (qos-port-type-profile)

    server-default                    (qos-port-type-profile)

    subscriber-data-service           vlan FastEthernet9/0.1

    subscriber-triple-play            vlan FastEthernet9/0.2

    subscriber-triple-play            vlan FastEthernet9/0.3

    

      Port attachments:       4

      Interface attachments:  3

      Not attached:           0
  7. To display global and interface attachments on all of the QoS parameter instances, issue the show qos-parameter references command.
    8. host1#show qos-parameter references

    

           interface                parameter name          value

    ----------------------- ------------------------------ -------

    global                  max-subscriber-bandwidth       2000000

    global                  subscriber-weight                    1

    global                  max-subscriber-video-bandwidth 2000000

    global                  max-100Kbps-voice-calls              1

    FastEthernet9/0.2       max-subscriber-bandwidth       6000000

    FastEthernet9/0.2       subscriber-weight                    3

    FastEthernet9/0.2       max-subscriber-video-bandwidth 2000000

    FastEthernet9/0.2       max-100Kbps-voice-calls              1

    FastEthernet9/0.3       max-subscriber-bandwidth       8000000

    FastEthernet9/0.3       subscriber-weight                    6

    FastEthernet9/0.3       max-subscriber-video-bandwidth 3000000

    FastEthernet9/0.3       max-100Kbps-voice-calls              3

    FastEthernet9/0 svlan 1 max-subscriber-video-bandwidth 1000000

    

      Global parameter instances:   4

      Parameter instances reported: 13
  8. To display the queue forwarding rates for the VLANs on the Fast Ethernet interface in slot 9, port 0, issue the show egress-queue rates command.
    9. host1#show egress-queue rates full interface fastEthernet 9/0

    

                               traffic   forwarded aggregate minimum  maximum

           interface            class      rate    drop rate  rate     rate

    ------------------------ ----------- --------- --------- ------- ---------

    ethernet FastEthernet9/0 best-effort         *         *       0 100000000

    vlan FastEthernet9/0.1   best-effort         *         *       0   2000000

    vlan FastEthernet9/0.2   best-effort         *         *       0   6000000

                             video               *         *       0   2000000

                             voice               *         *  100000    100000

    vlan FastEthernet9/0.3   best-effort         *         *       0   8000000

                             video               *         *       0   3000000

                             voice               *         *  300000    300000

    

      Queues reported:                    0

      Queues filtered (under threshold):  0

    * Queues disabled (no rate period):   8

    **Queues disabled (no resources):     0

      Total queues:                       8
  9. To display the shared-shaper settings for the VLANs on the Fast Ethernet interface in slot 9, port 0, issue the show qos shared-shaper command.
    10. host1#show qos shared-shaper interface fastEthernet 9/0

    

    

                                            shared

                                            shaping shaping

      interface           resource           rate    rate      other

    ------------- ------------------------- ------- ------- ------------

    vlan Eth9/0.1   vlan node

                  A vlan queue best-effort  2000000         rate 2000000

    vlan Eth9/0.2   vlan node

                  A vlan queue best-effort  6000000         rate 6000000

                  A vlan queue video                2000000

                  A vlan queue EF voice              100000

    vlan Eth9/0.3   vlan node

                  A vlan queue best-effort  8000000         rate 8000000

                  A vlan queue video                3000000

                  A vlan queue EF voice              300000

    

     Total shared shapers:          3

     Total constituents:            10

     Total shared shaper failovers: 0

     Compound shared shapers are not supported.
  10. To display the scheduler hierarchy for the Fast Ethernet interface in slot 9, port 0, issue the show qos scheduler-hierarchy command.
host1#show qos scheduler-hierarchy interface fastEthernet 9/0



Scheduler hierarchy for the default traffic-class group

                                                                  assured

                                                          shared   rate

                                                  shaping shaping   or

     interface                 resource            rate    rate   weight

-------------------- ---------------------------- ------- ------- -------

ethernet Eth9/0      ethernet port                                  wgt 8

ethernet Eth9/0        ethernet queue                               wgt 8

svlan Eth9/0 svlan 2   svlan node                                   wgt 8

vlan Eth9/0.1            vlan node                                  wgt 1

vlan Eth9/0.1              vlan queue best-effort         2000000   wgt 8

vlan Eth9/0.2            vlan node                                  wgt 3

vlan Eth9/0.2              vlan queue video       2000000           wgt 8

vlan Eth9/0.2              vlan queue best-effort         6000000   wgt 8

vlan Eth9/0.3            vlan node                                  wgt 6

vlan Eth9/0.3              vlan queue video       3000000           wgt 8

vlan Eth9/0.3              vlan queue best-effort         8000000   wgt 8



Scheduler hierarchy for traffic-class group EF

                                                               assured

                                                       shared   rate

                                               shaping shaping   or

     interface               resource           rate    rate   weight

-------------------- ------------------------- ------- ------- -------

ethernet Eth9/0        ethernet group node EF                    wgt 8

svlan Eth9/0 svlan 2     svlan node EF                           wgt 8

vlan Eth9/0.2              vlan queue EF voice  100000           wgt 8

vlan Eth9/0.3              vlan queue EF voice  300000           wgt 8

Complete Configuration Example

You can use the complete configuration examples provided for each of the configurations in your own network. To customize the configuration example for your needs, copy the text into a text editor, and modify it.

To use the example for immediate use, copy it to the local console or Telnet session from which you access the router.

You can also save the example as a script (.scr) file that executes the commands as though they were entered at the terminal. For information about executing .scr files, see JUNOSe System Basics Configuration Guide, Chapter 2, Command-Line Interface.

QoS Administrator Configuration

From Global Configuration mode:

! Configure traffic classes and traffic-class groups.

traffic-class best-effort

exit

traffic-class video

exit

traffic-class voice

fabric-strict-priority

exit

traffic-class-group EF auto-strict-priority

traffic-class voice

exit

!Configure the max-subscriber-bandwidth parameter definition.

qos-parameter-define max-subscriber-bandwidth

controlled-interface-type vlan

instance-interface-type vlan

range 512000 8192000

exit

!Configure the subscriber-weight parameter definition.

qos-parameter-define subscriber-weight

controlled-interface-type vlan

instance-interface-type vlan

range 1 6

exit

!Configure the max-subscriber-video parameter definition.

qos-parameter-define max-subscriber-video-bandwidth

controlled-interface-type vlan

instance-interface-type vlan

instance-interface-type svlan

range 1000000 5000000

exit

!Configure the max-100Kbps-voice-calls parameter definition.

qos-parameter-define max-100Kbps-voice-calls

controlled-interface-type vlan

instance-interface-type vlan

range 1 3

exit

! Configure the subscriber-best-effort scheduler profile.

scheduler-profile subscriber-best-effort

shared-shaping-rate max-subscriber-bandwidth auto

exit

! Configure the subscriber-video scheduler profile.

scheduler-profile subscriber-video

shaping-rate max-subscriber-video-bandwidth

exit

! Configure the subscriber-weight scheduler profile.

scheduler-profile subscriber-weight

weight subscriber-weight

exit

! Configure the subscriber-voice scheduler profile.

scheduler-profile subscriber-voice

shaping-rate max-100Kbps-voice-calls * 100000

exit

! Configure the subscriber-data-service QoS profile.

qos-profile subscriber-data-service

svlan node

vlan node scheduler-profile subscriber-weight

vlan queue traffic-class best-effort scheduler-profile subscriber-best-effort

exit

! Configure the subscriber-triple-play QoS profile.

qos-profile subscriber-triple-play

svlan node

vlan node scheduler-profile subscriber-weight

svlan node group EF

vlan queue traffic-class best-effort scheduler-profile subscriber-best-effort

vlan queue traffic-class video scheduler-profile subscriber-video

vlan queue traffic-class voice scheduler-profile subscriber-voice

exit

! Configure the ethernet-default QoS profile.

qos-profile ethernet-default

no ip node

no ip queue traffic-class best-effort

exit

! Attach the QoS profile to the VLAN and S-VLAN subinterfaces.

interface fastEthernet 9/0

encapsulation vlan

exit

interface fastEthernet 9/0.1

svlan id 2 1

ip address 192.1.1.1 255.255.255.0

interface fastEthernet 9/0.2

svlan id 2 2

ip address 192.2.1.1 255.255.255.0

exit

interface fastEthernet 9/0.3

svlan id 2 3

ip address 192.3.1.1 255.255.255.0

exit

QoS Client Configuration

From Global Configuration mode:

! Configure the max-subscriber-bandwidth, subscriber-weight, 
max-subscriber-video-bandwidth, and max-100Kbps-voice-calls global parameter 
instances.

qos-parameter max-subscriber-bandwidth 2000000

qos-parameter subscriber-weight 1

qos-parameter max-subscriber-video-bandwidth 2000000

qos-parameter max-100Kbps-voice-calls 1

! Configure a global parameter instance for individual DSLAMs.

interface fastEthernet 9/0

svlan 1 qos-parameter max-subscriber-video-bandwidth 1000000

exit

! Configure the basic-data service for Subscriber 1.

interface fastEthernet 9/0.1

qos-profile subscriber-data-service

exit

! Configure the basic triple-play service for Subscriber 2.

interface fastEthernet 9/0.2

qos-parameter max-subscriber-bandwidth 6000000

qos-parameter subscriber-weight 3

qos-parameter max-subscriber-video-bandwidth 2000000

qos-parameter max-100Kbps-voice-calls 1

qos-profile subscriber-triple-play

exit

! Configure the enhanced triple-play service for Subscriber 3.

interface fastEthernet 9/0.3

qos-parameter max-subscriber-bandwidth 8000000

qos-parameter subscriber-weight 6

qos-parameter max-subscriber-video-bandwidth 3000000

qos-parameter max-100Kbps-voice-calls 3

qos-profile subscriber-triple-play

exit
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