Converting an aggregated flow to a real flow for core nodes

A communication control method for controlling each of core nodes existing in an aggregated network into which one or more the core nodes are aggregated, the method comprising:

• converting a notification received from the core node in the aggregated network to a notification from the aggregated network and sends the converted notification to a control apparatus, and converting a notification which is directed to the aggregated network and received from the control apparatus to a notification to each of the core nodes in the aggregated network and sends the converted notification to the core node;
• updating information in a topology conversion information storage unit for the aggregated network as a unit, the topology conversion information storage unit storing, for each of the aggregated networks, connection relationships between the core nodes in the aggregated network, and information specifying a real port which is a port through which the core node in the aggregated network is connected to a device outside the aggregated network and specifying a real node which is the core node having the real port;
• and
• based on the information stored in the topology conversion information storage unit, converting an aggregated flow specified for the aggregated network and received from the control apparatus to a real flow specified for each of the core nodes in the aggregated network,
• wherein packets of data are communicated within the aggregated network in accordance with the real flow that has been specified for each of the core nodes, in a reliability-improved manner via conversion of the aggregated flow to the real flow specified for each of the core nodes.

A computer readable non-transitory medium embodying a communication control program, the program causing a computer connected between a core node which processes received packets in accordance with a specified flow and a control apparatus which controls the core node, and controlling each of the core nodes existing in an aggregated network into which one or more the core nodes are aggregated to perform a method, the method comprising:

• converting a notification received from the core node in the aggregated network to a notification from the aggregated network and sends the converted notification to the control apparatus, and converting a notification which is directed to the aggregated network and received from the control apparatus to a notification to each of the core nodes in the aggregated network and sends the converted notification to the core node;
• and
• updating information in a topology conversion information storage unit for the aggregated network as a unit, the topology conversion information storage unit storing, for each of the aggregated networks, connection relationships between the core nodes in the aggregated network, and information specifying a real port which is a port through which the core node in the aggregated network is connected to a device outside the aggregated network and specifying a real node which is the core node having the real port;
• and
• based on the information stored in the topology conversion information storage unit, converting an aggregated flow specified for the aggregated network and received from the control apparatus to a real flow specified for each of the core nodes in the aggregated network,
• wherein packets of data are communicated within the aggregated network in accordance with the real flow that has been specified for each of the core nodes, in a reliability-improved manner via conversion of the aggregated flow to the real flow specified for each of the core nodes.