Methods, systems, and computer readable media for priority routing of diameter messages

• US 10,425,342 B2
• Filed: 12/16/2016
• Issued: 09/24/2019
• Est. Priority Date: 12/16/2016
• Status: Active Grant

• Current Assignee: Oracle International Corporation (Oracle Corporation)
• Original Assignee: Oracle International Corporation (Oracle Corporation)
• Inventors: Gupta, Nitin, Mahalank, Shashikiran Bhalachandra, Aravamudhan, Venkatesh
• Primary Examiner(s): Taha, Shukri
• Application Number:
  US15/382,057
• Publication Number:
  US 20180176141A1
• Time in Patent Office: 1,012 Days
• Field of Search: None
• CPC Class Codes: H04L 41/5003 Managing SLA; Interaction between SLA and QoS
• CPC Class Codes: H04L 45/74 Address processing for routing
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 47/2433 Allocation of priorities to traffic types
• CPC Class Codes: H04L 61/503 using an authentication, authorisation and accounting [AAA] protocol, e.g. remote authentication dial-in user service [RADIUS] or Diameter
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers

Abstract

Methods, systems, and computer readable media for priority routing of Diameter messages are disclosed. In some examples, a method includes determining a Diameter Routing Message Priority (DRMP) priority value for a Diameter message. The method includes marking each of one or more Internet protocol (IP) packets carrying the Diameter message with an IP quality of service (QoS) value for the Diameter message based on the DRMP priority value. The method includes sending the one or more IP packets carrying the Diameter message to a destination Diameter node by way of an IP router on a data communications network providing quality of service using IP QoS values.

Claims

1. A method for routing Diameter messages, the method comprising:

determining, by a Diameter node comprising at least one processor, a Diameter Routing Message Priority (DRMP) priority value for a Diameter message;

marking, by the Diameter node, each of one or more Internet protocol (IP) packets carrying the Diameter message with an IP quality of service (QoS) value for the Diameter message based on the DRMP priority value, including determining the IP QoS value as a differentiated services code point (DSCP) value for the Diameter message based on the DRMP priority value and a mapping of DRMP priority values to DSCP code points; and

sending, by the Diameter node, the one or more IP packets carrying the Diameter message to a destination Diameter node by way of an IP router on a data communications network providing quality of service using IP QoS values±

wherein the IP router on the data communications network provides Quality of service using differentiated services;

wherein the mapping is implemented as a table indexed by DRMP priority values;

wherein marking each of the one or more IP packets carrying the Diameter message comprises inserting the DSCP value into a differentiated services field in a header of each IP packet.

2. The method of claim 1, wherein determining the IP QoS value as a DSCP value for the Diameter message based on the DRMP priority value and the mapping of DRMP priority values to DSCP code points comprises selecting the mapping from a plurality of subscriber-specific mappings for a plurality of different levels of service.

3. The method of claim 1, wherein the Diameter node comprises a Diameter Routing Agent (DRA), and wherein determining the DRMP priority value for the Diameter message comprises receiving the Diameter message and extracting the DRMP priority value from an attribute-value pair of the Diameter message reserved for DRMP priority values.

4. The method of claim 1, wherein the Diameter node comprises a Diameter client or Diameter server originating the Diameter message, and wherein determining the DRMP priority value for the Diameter message comprises determining the DRMP priority value based on one or more other attribute-value pairs of the Diameter message.

5. The method of claim 1, wherein the Diameter node is configured for carrying signaling traffic for a telecommunications network comprising a long term evolution (LTE) and/or IP multimedia system (IMS) network.

6. The method of claim 5, comprising determining a subscriber identifier for the telecommunications network associated with the Diameter message and determining the IP QoS value for the Diameter message by selecting the mapping from a plurality of subscriber-specific mappings using the subscriber identifier.

7. A system for routing Diameter messages, the system comprising:

a Diameter node comprising at least one processor; and

a Diameter-to-IP priority mapper implemented on the Diameter node and configured for;

determining a Diameter Routing Message Priority (DRMP) priority value for a Diameter message;

marking each of one or more Internet protocol (IP) packets carrying the Diameter message with an IP quality of service (QoS) value for the Diameter message based on the DRMP priority value, including determining the IP QoS value as a differentiated services code point (DSCP) value for the Diameter message based on the DRMP priority value and a mapping of DRMP priority values to DSCP code points; and

sending the one or more IP packets carrying the Diameter message to a destination Diameter node by way of an IP router on a data communications network providing quality of service using IP QoS values, wherein the IP router on the data communications network provides Quality of service using differentiated services;

wherein the mapping is implemented as a table indexed by DRMP priority values;

wherein marking each of the one or more IP packets carrying the Diameter message comprises inserting the DSCP value into a differentiated services field in a header of each IP packet.

8. The system of claim 7, wherein determining the IP QoS value as a DSCP value for the Diameter message based on the DRMP priority value and the mapping of DRMP priority values to DSCP code points comprises selecting the mapping from a plurality of subscriber-specific mappings for a plurality of different levels of service.

9. The system of claim 7, wherein the Diameter node comprises a Diameter Routing Agent (DRA), and wherein determining the DRMP priority value for the Diameter message comprises receiving the Diameter message and extracting the DRMP priority value from an attribute-value pair of the Diameter message reserved for DRMP priority values.

10. The system of claim 7, wherein the Diameter node comprises a Diameter client or Diameter server originating the Diameter message, and wherein determining the DRMP priority value for the Diameter message comprises determining the DRMP priority value based on one or more other attribute-value pairs of the Diameter message.

11. The system of claim 7, wherein the Diameter node is configured for carrying signaling traffic for a telecommunications network comprising a long term evolution (LTE) and/or IP multimedia system (IMS) network.

12. The system of claim 11, wherein the Diameter-to-IP priority mapper is configured for determining a subscriber identifier for the telecommunications network associated with the Diameter message and determining the IP QoS value for the Diameter message by selecting the mapping from a plurality of subscriber-specific mappings using the subscriber identifier.

13. A non-transitory computer readable medium storing executable instructions that when executed by at least one processor of a Diameter node cause the Diameter node to perform operations comprising:

determining a Diameter Routing Message Priority (DRMP) priority value for a Diameter message;

marking each of one or more Internet protocol (IP) packets carrying the Diameter message with an IP quality of service (QoS) value for the Diameter message based on the DRMP priority value, including determining the IP QoS value as a differentiated services code point (DSCP) value for the Diameter message based on the DRMP priority value and a mapping of DRMP priority values to DSCP code points; and

sending the one or more IP packets carrying the Diameter message to a destination Diameter node by way of an IP router on a data communications network providing quality of service using IP QoS values, wherein the IP router on the data communications network provides Quality of service using differentiated services;

wherein the mapping is implemented as a table indexed by DRMP priority values;

wherein marking each of the one or more IP packets carrying the Diameter message comprises inserting the DSCP value into a differentiated services field in a header of each IP packet.

14. The non-transitory computer readable medium of claim 13, wherein the Diameter node is configured for carrying signaling traffic for a telecommunications network comprising a long term evolution (LTE) and/or IP Multimedia Subsystem (IMS) network.