Patent ID: 11929921
Assignee: FUJITSU LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A communication control apparatus for implementing flow control of a software defined network (SDN), the communication control apparatus comprising:
a memory; and
a processor coupled to the memory and configured to:
set, when a packet of a flow that is not registered in transfer control information is detected when a plurality of packets that constitutes a flow is transferred, a destination resolution standby state for the flow in the transfer control information,
store, into an evaluation queue, at least some of packets of the flow received when the flow is in the destination resolution standby state,
stop, after destination resolution for the flow, a pipeline that processes a packet to be transferred,
output, after the destination resolution for the flow, any packets that belong to the flow and are stored in the evacuation queue,
set, after the output of any packets that belong to the flow and are stored in the evacuation queue is completed, a valid state for the flow in the transfer control information, and
operate the pipeline after the output of any packets that belong to the flow and are stored in the evacuation queue is completed.