Electrical computers and digital processing systems: multicomput – Network-to-computer interfacing
Reexamination Certificate
2011-01-11
2011-01-11
Harold, Jeffrey F (Department: 2468)
Electrical computers and digital processing systems: multicomput
Network-to-computer interfacing
C709S212000, C709S223000, C709S224000, C709S225000, C709S226000, C709S249000, C370S389000, C370S392000, C370S412000, C718S001000, C718S104000, C718S105000, C710S022000, C710S308000
Reexamination Certificate
active
07870298
ABSTRACT:
Two logical partitions within a single computer communicate with each other internally. The protocol stack of a first logical partition generates a frame in a memory space provided in a driver and referred to by the first logical partition. The driver transfers the frame generated in the memory space of the first logical partition to a communication port of a Layer2switch using DMA. The communication port of the Layer2switch loops back the frame input from the driver. An interrupt is signaled to the driver and the frame is transferred from communication port of the Layer2switch to the driver using DMA. The frame is received in a memory space referred to by a second logical partition.
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Machiyama Kazushige
Shima Koji
Chang Kai J
Frommer William S.
Frommer & Lawrence & Haug LLP
Harold Jeffrey F
Levy Paul A.
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