Managing processing utilization in a network node

Details Managing processing utilization in a network node Managing processing utilization in a network node

2005-01-14

2008-10-28

Ho, Duc C (Department: 2619)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

Reexamination Certificate

active

07443856

ABSTRACT:
A technique for managing the utilization of processing resources involves filtering packets that are sent to a CPU for learning before allowing the packets to reach the CPU. The filtering involves determining if related packets have already been allowed to reach the CPU for learning and using the knowledge about related packets to determine if a current packet should be allowed to reach the CPU. In one embodiment, the processing resources of the CPU are conserved by allowing only one packet per flow to reach the CPU for learning. The one packet is used by the CPU to generate the necessary forwarding information and to initiate programming of the hardware-based forwarding table so that subsequent packets of the same flow can be forwarded directly from the hardware-based forwarding engine.

REFERENCES:
patent: 7103055 (2006-09-01), Kadambi et al.
patent: 2003/0035430 (2003-02-01), Islam et al.
patent: 2003/0065812 (2003-04-01), Beier et al.
patent: 2004/0117438 (2004-06-01), Considine et al.
patent: 2004/0186904 (2004-09-01), Oliveira

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