Diameter Routing Option Sets

A Routing Option Set is a collection of Routing Options that are used when a Request message is received. This functionality controls the number of times an application forwards the request message and the processing error delivery situations.

You can perform these tasks on an Active System OAM (SOAM).

A Routing Option Set can be associated with the Peer Node that the Request is received from, or with the Diameter Application ID contained in the Request message header. If Routing Option Sets are associated with both the Peer Node and the Application ID, the one associated with the Peer Node takes precedence. If neither the Peer Node nor the Application ID have an associated Routing Option Set, then the Default Routing Option Set is used.

Users can assign Routing Option Set (ROS) to Diameter messages based on Application ID and (Extended) Command Codes by configuring Transaction Configuration Rule (TCR) with Application ID plus (E)CC as a key in Transaction Configuration Sets.

Select the Routing Option Set as per the precedence selection criterion as described in here, highest to lowest priority.

• If Transaction Configuration Set is selected on ingress Peer Node from which the Diameter Request was received, use Transaction Configuration Set and apply longest/strongest match search criteria for Diameter Request message parameters comparison and if a match is found, apply ROS assigned to the Transaction Configuration Rule defined under this Transaction Configuration Set, if it exists.
• The ROS assigned to the ingress Peer Node from which the Request message was received, if it exists.
• Search Default TCS and apply longest/strongest match. Use ROS associated with best match, if any is found.
• Default ROS.

On the Diameter > Configuration > Route Option Sets page, you can perform the following actions:

• Filter the list of Routing Option Sets to display only the desired Routing Option Sets.
• Sort the list by a column in ascending or descending order by clicking the column heading. The default order is by Routing Option Set Name in ascending ASCII order.
• Click Insert.

  On the Diameter > Configuration > Route Option Sets [Insert] page, you can add a new Routing Option Set.

  The Diameter > Configuration > Route Option Sets [Insert] page does not open if the maximum number of Routing Option Sets (50) already exists in the system

• Select a Routing Option Set in the list and click Edit.

  On the Diameter > Configuration > Route Option Sets [Edit] page, you can edit the selected Routing Option Set.

  If the selected Routing Option Set has been deleted by another user, the Diameter > Configuration > Route Option Sets [Edit] page does not open.

• Select a Routing Options Set in the list and click Delete. You can delete the selected Routing Option Set. The Default Routing Option Set cannot be deleted.