Selective header field dispatch in a network processing system

Details Selective header field dispatch in a network processing system Selective header field dispatch in a network processing system

2007-07-12

2010-06-22

Kumar, Pankaj (Department: 2467)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S395100, C370S476000, C370S397000, C370S389000

Reexamination Certificate

active

07742480

ABSTRACT:
A method and structure are disclosed for dispatching appropriate data to a network processing system comprising an improved technique for extracting protocol header fields for use by the network processor. This technique includes basic classification of a packet according to the types of protocol headers present in the packet. Based on the results of the classification, specific parameter fields are extracted from corresponding headers. All such parameter fields from one or more protocol headers in the packet are concatenated into a compressed dispatch message. Multiples of such dispatch messages are bundled into a single composite dispatch message. Thus, selected header fields from N packets are passed to the network processor in a single composite dispatch message, increasing the network processor's packet forwarding capacity by a factor of N. Likewise, multiple enqueue messages are bundled into a single composite enqueue message to direct enqueue and frame alterations to be taken on the bundle of N packets.

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