US 7,593,337 B2
Packet processing system
Naoki Oguchi, Kawasaki (Japan); and Tetsumei Tsuruoka, Kawasaki (Japan)
Assigned to Fujitsu Limited, Kawasaki (Japan)
Filed on Feb. 03, 2004, as Appl. No. 10/769,752.
Claims priority of application No. 2003-054410 (JP), filed on Feb. 28, 2003; and application No. 2003-144137 (JP), filed on May 21, 2003.
Prior Publication US 2004/0170133 A1, Sep. 02, 2004
Int. Cl. H04L 1/00 (2006.01)
U.S. Cl. 370—235  [370/230; 370/231; 370/244; 370/401] 36 Claims
OG exemplary drawing
 
2. A packet processing system comprising:
a forwarding device that transmits and receives a packet through a network interface: and
a control device that transfers the packet between the control device and the forwarding device, and responds to the packet using an application, wherein
the control device includes
a symbol section that is associated with address information of the forwarding device; and
a first transfer control section that when detecting that the application accesses the symbol section, sets a packet transfer rule in the forwarding device by transmitting to the forwarding device a setting request that the forwarding device sets the packet transfer rule that is used to transfer the received packet to the control device, and the forwarding device includes
a second transfer control section that sets the packet transfer rule in response to the setting request, wherein
the symbol section is a virtual interface corresponding to the network interface, and
the forwarding device further includes an interface determination section that when receiving from the control device an interface request that the forwarding device provides the network interface to the control device, determines whether the network interface is available.