Partial copying of data to transmit buffer for virtual...

Details Partial copying of data to transmit buffer for virtual... Partial copying of data to transmit buffer for virtual...

2006-11-30

2010-02-02

Chan, Wing F (Department: 2441)

Electrical computers and digital processing systems: multicomput

Network-to-computer interfacing

C711S006000, C718S001000, C370S471000, C370S472000, C370S473000, C370S474000

Reexamination Certificate

active

07657659

ABSTRACT:
In a virtualized computer system, a network frame is transmitted from a virtual machine using a network interface device, possibly through a virtual switch, by copying only a part of the network frame to the transmit buffers that have pre-translated mappings from guest physical addresses to hypervisor virtual addresses and to machine addresses. The length of the part of the network frame that is copied to the transmit buffers may be variable.

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Menon, A. et al., “Optimizing Network Virtualization in Xen,” Proceedings of the 2006 USENIX Annual Technical Conference, May 30-Jun. 3, 2006, Boston, MA, pp. 15-28.

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