Dynamic Transport Selection based on Transaction or Origin Host for Wireless Priority Service Messages
Feature Summary and Revision History
Applicable Product(s) or Functional Area |
vDRA |
Applicable Platform(s) |
Not Applicable |
Default Setting |
Enabled - Always ON |
Related Changes in This Release |
Not Applicable |
Related Documentation |
CPS vDRA Configuration Guide |
Revision Details |
Release |
||
---|---|---|---|
First introduced
|
21.1.0 |
Feature Description
Transactions for certain Wireless Priority Service (WPS) user sessions are sent or received with different DSCP marking. You can create two sets of connections for Rx and Gx each with different DSCP marking. Based on the Rx AAR, the Policy Application Server (PAS) chooses the right connection set for all subsequent transactions related to that session until the P-CSCF indicates a different priority. The DRA allows you to create the following policies for WPS users:
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DSCP marking for peer TCP connections: Use this function for WPS to forward WPS messages received from PAS. The WPS messages are treated as high priority in the network.
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Peer Group Message Class Mapping to configure message class for peer groups.
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Peer Group SRK Mapping.
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Peer Route for Priority Messages: Selects peers based on message priority.
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WPS Message Routing: PAS routes WPS messages over available WPS peer connections. If WPS connections are not available, then PAS routes WPS messages over available normal priority peer connection. PAS does not route non-WPS messages over WPS priority peer connection.
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Priority based destination host Re-routing: Supports rerouting of messages with destination-host based routing when WPS message is addressed to normal priority peer. This is allowed when a peer does not know the FQDN of high priority peer. This message rerouting can be enabled through option in Policy builder.
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DRA Endpoint Message class mapping to configure message class for relay endpoints: Supports dedicated relay links for WPS messages with appropriate DSCP marking for the TCP connection. When forwarding WPS messages, PAS selects relay links matching the message priority.
For more information, see Dynamic Transport Selection based on Transaction or Origin Host chapter in the CPS vDRA Configuration Guide.
The following new statistics are added:
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diameter_message_route_total
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diameter_message_timeout_total
The following statistics are modified:
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diameter_request_total
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diameter_request_duration_seconds
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relay_message_total
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relay_peer_messages_total
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relay_error_total
For more information on statistics, see Statistics/KPI Additions or Changes.