Red Hat, Inc.

Daniel Borkmann

Thomas Graf

Francesco Fusco

An apparatus sets a layer counter to point to a first layer of a data structure. The apparatus determines the layer counter to reference an overflowing cell. The apparatus increments the layer counter to point to a second layer of the data structure. The apparatus determines the incremented layer counter to reference a non-overflowing cell. The apparatus increments a value of the non-overflowing cell, wherein the first layer is stored in a first cache and the second layer is stored in a second cache, and wherein the first cache differs from the second cache with respect to one or more of speed or size.

Fractal approach for probabilistic flow cache maintenance

A hypervisor running on a host machine identifies a first media access control (MAC) address prefix associated with the host machine, wherein the first MAC address prefix comprises one or more bits that are shared by MAC addresses for virtual machines hosted by the host machine. The hypervisor configures the host machine to filter packets based on a first MAC address prefix filter, wherein the first MAC address prefix filter passes packets addressed to MAC addresses that have the identified first MAC address prefix. The hypervisor assigns MAC addresses having the first MAC address prefix to a plurality of virtual machines that will be hosted by the host machine.

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Udorf, Switzerland

Daniel Borkmann