Diameter User Guide Configuring Diameter Diameter Peer Discovery Discovery Attributes Deleting Discovery Attributes Deleting Discovery Attributes Use this task to delete Discovery Attributes. Click Diameter, and then Configuration, and then Peer Discovery, and then Discovery Attributes. Select the row you want to delete. Click Delete.A popup window appears to confirm the delete. Note:Deletion is only possible if all validation checks pass. If validation fails, an error code displays. Click OK or Cancel.