Page 1416 - 5G Basics - Core Network Aspects

3 Signalling aspects

Meanings and explanations:

1) SDN-controller-Address uniquely specifies the SDN controller;
2) SBAN-node-Address uniquely specifies the SBAN node address, which is equal to
Master-Aggregate-node-Address;

3) SBAN-node-ID uniquely specifies the SBAN node;
4) Flow-ID uniquely specifies the flow sent by the SDN controller;
5) Flow-Parameter-ID is optional, some of the status may need this ID to specify the intended
status;
6) Flow-Status-Value is used for describing the status of the flow specified by Flow-ID.

8.3 Signalling requirements for northbound interface

8.3.1 Signalling requirements for registration
8.3.1.1 SDN application Register message and response message

The SDN application Register message is defined as APP-RE message.
The APP-RE message, indicated by the message type in the message header field, is sent by the SDN
application to be registered in the SDN controller.
Message format:

< APP-RE-Message > ::= < Message header >
{ SDN-controller-Address }
{ SDN-application-Address }
{ SDN-application-ID }
*{ SDN-application-Attribute-ID }

Meanings and explanations:
1) SDN-controller-Address uniquely specifies the SDN controller;
2) SDN-application-Address uniquely assigned to the SDN application;

3) SDN-application-ID uniquely specifies the SDN application;
4) SDN-application-Attribute-ID is used for the SDN application attributes. There may be
multiple SDN application attribute items.

The response message to the APP-RE message is defined APP-REP message.
The APP-REP message, indicated by the message type in the message header field, is sent by the SDN
controller to the SDN application in response to the APP-RE message.
Message format:

< APP-REP-Message> ::= < Message Header >
{ SDN-controller-Address }
{ SDN-application-Address }
{ SDN-application-ID }
{ Result }

Meanings and explanations:
1) SDN-controller-Address uniquely specifies the SDN controller;
2) SDN-application-Address uniquely assigned to the SDN application;
3) SDN-application-ID uniquely specifies the SDN application;

4) Result shows the handling results of registering the SDN application in the SDN controller.

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