Active request management apparatus in stateful forwarding networks and method thereof

A packet management method for controlling a router in content-centric networking (CCN), the packet management method comprising the steps of:

• (a) predicting, by a traffic prediction unit, an amount of data traffic to be generated based on a number of forwarding information items present in a pending interest table (PIT);
• (b) probabilistically dropping, by a proactive congestion control unit, request packets (interests) based on the amount of data traffic predicted by the traffic prediction unit;
• (c) generating, by the proactive congestion control unit, a Negative Acknowledgement (NACK) packet after dropping the request packets in the router;
• and
• (d) when receiving the NACK packet, generating, by the proactive congestion control unit, a request packet corresponding to the corresponding NACK packet and forwarding, by the proactive congestion control unit, the generated request packet to an interface having a rank next to a rank of an interface via which the NACK packet has entered.