Setting Network-Wide Options

Use this task to set Network-Wide Options on the NOAM.

The fields are described in Network-Wide Options elements.

The following Policy DRA configuration options apply to the entire Policy DRA Network:

Origin-Host and Origin-Realm for Policy DRA generated RAR messages
Enable PCRF Pooling
Early Binding
Topology Hiding

Select Policy and Charging > Configuration > Policy DRA > Network-Wide Options.
The Policy DRA Network-Wide Options page appears.
Select the Local Host or PCRF radio button.
This sets the Origin-Host and Origin-Realm that will be used in the RAR messages constructed and sent by Policy DRA to policy clients.
Select the Enable PCRF Pooling check box.
Checking the box allows a subscriber's policy sessions to be routed to different PCRFs depending on the Access Point Network the session originated from. This box must be checked following acceptance of upgrade or future upgrades will be disallowed.
Set the Early Binding Polling Interval.
The number of milliseconds between sending queries to the early binding master to determine which PCRF the master session was routed to so that the slave session can be routed to the same PCRF.

The goal is to set this value such that the master session has time to receive an answer a high percentage of the time. Choosing a low value increases database queries, but may reduce latency. A high value does the opposite.

Note: This value is used only when PCRF Pooling is Enabled.
Set the Maximum Early Binding Lifetime.
The maximum time that a binding is allowed to remain as an early binding.

The ideal setting for this value is 100 - 200 msec longer than the Diameter transaction timeout. This value prevents bindings from becoming stuck for long periods in the early binding state due to congestion or other error conditions. If a new Diameter request or polling attempt discovers a binding session that has been in the early state for longer than this time, the binding session is removed.

Note: This value is used only when PCRF Pooling is Enabled.
Select the Enable Topology Hiding check box.
Enable or disable topology hiding using the check box. Once enabled or disabled here, the Topology Hiding is enabled or disabled at all SOAMs under this NOAM.
Select a Topology Hiding Scope.
This sets the scope of messages where topology hiding will be applied. Select 'All Messages' to perform topology hiding for all messages destined to policy clients. Select 'All Foreign Realms' to perform topology hiding for messages destined to the policy clients whose realms are different from the realm of the PCRF to be bound. Select 'Specific Clients' to perform topology hiding for the policy clients that are configured in one of SOAM GUI Main Menu: Policy and Charging > Configuration > Policy DRA > Policy Clients screen. Select 'All Foreign Realms + Specific Clients' to perform topology hiding if either condition ('All Foreign Realms' or 'Specific Clients') is met.
Enter a Default Topology Hiding Virtual Name.
The entered FQDN is used as a default value in the Origin-Host AVP for answer messages routed from a PCRF to a policy client, or in the Destination-Host AVP for request messages routed from a PCRF to a policy client, only if Topology Hiding Virtual Name FQDN is not configured at a SOAM relevant to the policy client and PCRF.

The entered Realm is used as a default value in the Origin-Realm AVP for answer messages routed from a PCRF to a policy client, or in the Destination-Realm AVP for request messages routed from a PCRF to a policy client, only if Topology Hiding Virtual Name Realm is not configured at a SOAM relevant to the policy client and PCRF.
Click:
- Apply to save the changes and remain on this page.
- Cancel to discard changes and remain on the Policy and Charging > Configuration > Policy DRA > Network-Wide Options page.
If Apply is clicked and the following condition exists, an error message appears: