2.21.4 Application Routing Rules Configuration

An Application Routing Rule defines message routing to a diameter application based on message content matching the Application Routing Rule's conditions.

If the redirect ART instance is not configured, redirect processing skips ART evaluation for the redirected request, and it goes directly to PRT (Peer Route table) evaluation. If the redirect ART is configured, redirect processing searches for that ART and performs ART evaluation of the redirect request.

There are six Application Routing Rule parameters:
  • Destination-Realm
  • Destination-Host
  • Application-ID
  • Command-Code
  • Origin-Realm
  • Origin-Host

When a Diameter message matches the conditions of an Application Routing Rule then message is routed to the diameter application specified in the rule.

Application Routing Rules are assigned a priority in relation to other Application Routing Rules. A message is handled based on the highest priority routing rule that it matches. The lower the number an Application Routing Rule is assigned the higher priority it has. (1 is highest priority and 1000 is lowest priority.)

One or more diameter applications must be activated before Application Routing Rules can be configured.

Perform the following actions on Application Route Tables Page:
  1. Filter the list of Rule Names to display only the desired Rules.
  2. Click column heading to sort the list entries in ascending or descending order by Rule Name, Priority, or Application Name.

    By default, the list is sorted by priority in ascending order. The lowest priority value indicates the highest priority for Rules with the same priority, the Rule Name is used for sorting.

  3. On Inserting Rule for Application Route Table page, you can add a new Application Routing Rule. For more information, see Adding an Application Routing Rule. click Insert.

    Note:

    If the system already has the maximum number of Application Routing Rules (65000), an error message appears and the Inserting Rule for Application Route Table does not appear.
  4. Select the Rule Name from the Application Route Table Name list and click View/Edit Rules.

    On the Viewing Rules for Application Route Table page, you can edit the selected Application Routing Rule. For more information, see Editing an Application Routing Rule.

  5. Select the Rule Name from the Application Route Table Name list and click Delete to remove the selected Application Routing Rule. For more information, see Deleting an Application Routing Rule.