Managing traffic classifiers

The table of traffic classifiers is displayed in the SD-WAN instance template and in the controller configuration menu:

• To display the table of traffic classifiers 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.
• To display the table of traffic classifiers in the controller settings menu, go to the Infrastructure menu section, click Management → Configuration menu next to the controller, and go to the Traffic classifiers section.

By default, the Untrust-BE-Classifier is created, which does not trust DSCP values in traffic packet header fields and puts all traffic in the Best effort traffic class. Information about traffic classes is displayed in the following columns of the table:

• Name is the name of the traffic classifier.
• Type indicates whether the classifier trusts the DSCP values set in the header fields of traffic packets:
  • Yes
  • No
• Traffic class are traffic classes into which the traffic classifier puts traffic.
• Packet field are traffic packet headers.
• External tag is the DSCP value that the traffic packet headers must contain for the traffic classifier to put traffic in the traffic class.

The actions you can perform with the table are described in the Managing solution component tables instructions.

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 Traffic classifiers section.

   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. 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.

The traffic classifier is created and displayed in the table.

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.

Editing a traffic classifier

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

To edit a traffic classifier:

1. Edit a traffic classifier in one of the following ways:
   • If you want to edit 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 edit 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 Traffic classifiers section.

   A table of traffic classes is displayed.

2. Click Management → Edit next to the traffic classifier that you want to edit.
3. This opens a window; in that window, if necessary, edit the traffic classifier settings. For a description of the settings, see the instructions for creating a traffic classifier.
4. Click Save. If you have edited 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.

The traffic classifier is modified and updated in the table.

Deleting a traffic classifier

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

Deleted traffic classifiers cannot be restored.

To delete a traffic classifier:

1. Delete a traffic classifier in one of the following ways:
   • If you want to delete 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 delete 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 Traffic classifiers section.

   A table of traffic classes is displayed.

2. Click Management → Delete next to the traffic classifier that you want to delete.
3. In the confirmation window, click Delete. If you have deleted 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.

The traffic classifier is deleted and is no longer displayed in the table.