Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-10-10
2006-10-10
To, Doris H. (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S392000, C370S477000, C711S003000
Reexamination Certificate
active
07120152
ABSTRACT:
A method of routing a packet in a routing device having a main processor that includes a main cache table and an instant cache table is disclosed. The instant cache stores a recent address and a recent interface associated with the most recent packet transmission process made by the routing device. The method includes the steps of receiving a packet that includes its destination address, checking whether the destination address belongs to the routing device, checking whether the destination address is identical to the recent address if the destination address does not belong to the routing device, and transmitting the packet to the recent interface if the destination address is identical to the recent address. As a result, the core information related to the routing path determination is stored not only in the routing table of the protocol layer but also in the main and instant cache tables included in the main processor. Since the selection of the routing path for a given packet depends on the individual characteristic of the packet, the data processing time of the packet is greatly reduced. Consequently, the routing performance of the routing device is greatly enhanced.
REFERENCES:
patent: 6424659 (2002-07-01), Viswanadham et al.
patent: 6570875 (2003-05-01), Hegde
patent: 6614795 (2003-09-01), Jimmei et al.
patent: 6768739 (2004-07-01), Kobayashi et al.
patent: 6839346 (2005-01-01), Kametani
patent: 2004/0003126 (2004-01-01), Boucher et al.
patent: 2005/0047411 (2005-03-01), Kadambi et al.
patent: 2005/0089016 (2005-04-01), Zhang et al.
Elallam Ahmed
Fleshner & Kim LLP
LG Electronics Inc.
To Doris H.
LandOfFree
Method of routing a packet in a routing device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of routing a packet in a routing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of routing a packet in a routing device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3718958