Creating a traffic classifier

You can create a traffic classifier in an SD-WAN instance template or in the controller configuration menu. If you create a traffic classifier in an SD-WAN instance template, that traffic classifier is not created in the controller configuration menu of already deployed SD-WAN instances.

To create a traffic classifier:

  1. Create a traffic classifier in one of the following ways:
    • If you want to create a traffic classifier in an SD-WAN instance template, go to the SD-WAN → SD-WAN instance templates section, click the SD-WAN instance template, and select the Traffic classifiers tab.
    • If you want to create a traffic classifier in the controller settings menu, go to the Infrastructure section, click Management → Configuration menu next to the controller, and go to the QoS section and select the Traffic classifiers tab.

    A table of traffic classes is displayed.

  2. Click + Classifier.
  3. This opens a window; in that window, in the Name field, enter the name of the traffic classifier.
  4. In the Type list, select one of the following values:
    • Trust means that the traffic classifier trusts the DSCP values set in the header fields of traffic packets. Default value.
    • Untrust means that the traffic classifier does not trust the DSCP values set in the header fields of traffic packets.
  5. If you selected Trust in the Type list, map the traffic classes to DSCP values in the traffic packet headers:
    1. In the Traffic class column, select the traffic class into which the traffic classifier puts traffic.
    2. In the External tag column, click Select next to the traffic packet header field.
    3. Select the check boxes next to the displayed DSCP values that must be present in the traffic packet header field for the traffic classifier to put traffic in the traffic class.
    4. Click Ok.
  6. If in the Type list you selected Untrust, select the traffic class in which the traffic classifier places all traffic in the Traffic class drop-down list.
  7. Click Create.

    The traffic classifier is created and displayed in the table.

  8. If you have created a traffic classifier in the SD-WAN instance template, in the upper part of the settings area, click Save to save the SD-WAN instance template settings.

You can specify a traffic classifier when creating or editing a quality of service rule to make the quality of service rule use this traffic classifier.

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