As your network changes, is reconfigured, or adds new capabilities, such Diameter and it's associated interfaces, you will have to modify your existing MRA to meet these needs.
To modify MRA cluster profile settings:
From the MRA section of the navigation pane, select Configuration.
The content tree displays a list of MRA groups; the initial group is ALL.
Select the MRA cluster profile located in the content tree.
Select the System tab located in the MRA Administration page.
Click Modify which opens the Modify System Settings page.
Modify those system settings that need modification.