Datadirect Networks, Inc.

Ixia

Doug Schafer

Jan Olderdissen

Craig Robertson

Dan Olster

Dave Fellinger

Clifford Lee Hannel

Roger Standridge

An object based file system for storing and accessing objects is disclosed. The file system may be implemented as a method in hardware, firmware, software, or a combination thereof. The method may include receiving from an application program an object write request. A selected storage node on which to store the object may be selected, including identifying a least busy storage node and/or a least full storage node. The object and the object write request may be sent to the selected storage node. A write success message may be received from the selected storage node. The successful writing of the object may be reported to the application program.

Object file system

An object based file system for storing and accessing objects is disclosed. The file system may be implemented as a method in hardware, firmware, software, or a combination thereof. The method may include receiving from an application program an object write request. A selected storage node on which to store the object may be selected, including identifying a least busy storage node and/or a least full storage node. The object and the object write request may be sent to the selected storage node. A write success message may be received from the selected storage node. The successful writing of the object may be reported to the application program. An object identifier and object data may be stored in a database.

Hardware time stamping and synchronized data transmission disclosed. In a method, a reference time stamp and a local time stamp are obtained. A synchronization offset is prepared based on the local time stamp and the reference time stamp. Instructions are received to send a plurality of data units at a specified time. The plurality of data units are sent at the specified time based on referring to a local time obtained from a local clock and the synchronization offset to simultaneously send a packet storm comprising the plurality of data units. The method may be achieved by a network communications unit on a plurality of network cards included in a network testing system.

Hardware time stamping and synchronized data transmission

Hardware time stamping is disclosed. In a method, a transmit time stamp may be added to an outgoing data unit in hardware prior to transmitting the outgoing data unit over a communications medium. The outgoing data unit may be received from a processor and may be intended for a node. The outgoing data unit may be transmitted over the communications medium to the node. An incoming data unit may be received over the communications medium. A receive time stamp may be added to the incoming data unit in hardware before the incoming data unit is provided to the processor. The method may be achieved on a hardware device included on a board in a network testing system.

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Agoura Hills, CA, United States of America

Doug Schafer