US 7,477,640 B2
Packet processing system
Naoki Oguchi, Kawasaki (Japan); and Tetsumei Tsuruoka, Kawasaki (Japan)
Assigned to Fujitsu Limited, Kawasaki (Japan)
Filed on Oct. 25, 2004, as Appl. No. 10/972,862.
Claims priority of application No. 2004-105973 (JP), filed on Mar. 31, 2004.
Prior Publication US 2005/0220124 A1, Oct. 06, 2005
Int. Cl. H04L 12/28 (2006.01); H04L 12/56 (2006.01); G06F 15/16 (2006.01)
U.S. Cl. 370—389  [709/227; 370/392; 370/401; 370/402] 20 Claims
OG exemplary drawing
 
1. A packet processing system including a forwarding apparatus that sends and receives a packet by using a network interface and a control apparatus that includes an application receiving the packet sent from the forwarding apparatus,
the control apparatus comprising:
a transfer control part for sending a request message to the forwarding apparatus requesting the forwarding apparatus to set a packet transfer rule for transferring a received packet to the application when detecting that a communication port generated by the application corresponds to a virtual interface corresponding to address information of the forwarding apparatus;
the forwarding apparatus comprising:
a transfer control part for setting the packet transfer rule as requested by the request message;
wherein the packet transfer rule includes an interface identifier corresponding to the communication port; and
when the control apparatus detects that the interface identifier is changed, the control apparatus sends a correction message to the forwarding apparatus requesting the forwarding apparatus to correct the interface identifier in the packet transferring rule.