Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2008-04-08
2008-04-08
Orgad, Edan (Department: 2619)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C709S230000
Reexamination Certificate
active
10667562
ABSTRACT:
A system and method for describing multiple packets to a communication module or device without requiring descriptors for each packet. A device driver for the communication apparatus receives a set of packet headers and a set of packet payloads from an upper layer protocol. The headers may be received in a header buffer, and the payloads may be received in a separate data buffer. Or, the packets may be received, in assembled form, in a single buffer. The device driver configures a single descriptor to describe the multiple packets to the communication apparatus. The descriptor includes base address(es) of the buffer(s) in which the headers, payloads or assembled packets are stored, and the lengths of the individual headers, payloads or assembled packets. If the buffer contents are not packed, the descriptor may also include offsets of the headers, payloads or packets.
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Burrowes Lawrence J
Orgad Edan
Park Vaughan & Fleming LLP
Sun Microsystems Inc.
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