John F Tracey, Age 791021F Aberdeen Dr, Lakewood, NJ 08701

6968358, Nov 22, 2005

Jul 25, 2002

10/205024

Douglas Freimuth - New York NY, US
Roland Mraz - South Salem NY, US
Erich M. Nahum - New York NY, US
Prashant Pradhan - New Rochelle NY, US
Sambit Sahu - Mahopac NY, US
John Michael Tracey - Yonkers NY, US

International Business Machines Corporation - Armonk NY

G06F015/16
G06F012/00

709203, 709250, 711118, 711133, 711144

A method, apparatus, and computer instructions for transferring data objects. A request for a data object is received at a communication adapter. A determination is made as to whether the data object is stored in a memory in the communication adapter in response to receiving the request. The data object is transferred from the memory to a receiver of the data object through the communication adapter in which transfer of the data across a bus connecting the communication adapter to the data processing system is unnecessary in response to the data object being present in the memory.

7114096, Sep 26, 2006

Apr 2, 2003

10/406095

Douglas Morgan Freimuth - New York NY, US
Ronald Mraz - South Salem NY, US
Erich Nahum - New York NY, US
Prashant Pradhan - New Rochelle NY, US
Sambit Sahu - Mahopac NY, US
John Michael Tracey - Yonkers NY, US

International Business Machines Corporation - Armonk NY

G06F 11/00

714 13, 714 4, 714 15, 370220

The present invention provides a method, computer program product, and data processing system for efficiently recovering state and performing failover of a network offload engine. The present invention distinguishes between the hard state and the soft state of a protocol. Hard state is state information that, when lost, leads to incorrect protocol behavior. Soft state is state information that may be lost or become inconsistent without loss of correctness. The present invention ensures correctness by always being able to recover the hard state of the protocol. A preferred embodiment of the present invention performs a failover of a network offload engine by temporarily blocking the reception of network packets, recovering hard state from host information, resuming network operation using a substitute network offload engine, and recovering soft state from the subsequent network activity.

7139268, Nov 21, 2006

Jan 29, 1999

09/240374

Pravin Bhagwat - Scarsdale NY, US
John Michael Tracey - Yonkers NY, US

H04L 12/28

370389

A method and apparatus for splicing a first data flow inbound to an intermediate node and second data flow outbound from the intermediate node transforms the first data flow and the second data flow into a single composite data flow originating at the source of the first data flow and terminating at the destination of the second data flow. The method allows any other data flows associated with the first or second data flow, such as other data flows associated with connections that encompass either the first or second data flow, to remain unaffected by the splice. The method allows intermediate nodes in a network to influence data flow between a pair of nodes at or above the transport layer without incurring all the overhead commonly associated with transport and higher layer processing.

7493427, Feb 17, 2009

Jul 14, 2004

10/891196

Douglas Morgan Freimuth - New York NY, US
Elbert C. Hu - Elmhurst NY, US
Ronald Mraz - South Salem NY, US
Erich M. Nahum - New York NY, US
Prashant Pradhan - New Rochelle NY, US
Sambit Sahu - Mahopac NY, US
John Michael Tracey - Scarsdale NY, US

International Business Machines Corporation - Armonk NY

G06F 3/00
G06F 15/167
G06F 13/00

710 52, 709213, 710 56, 711148, 711149

A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, an improved mechanism for handling receipt of data packets in a system utilizing an offload network adapter. The offload network adapter may include logic that permits the offload network adapter to delay notification of data reception to the host system in different ways. The advantage of delaying the notice of data packet reception to the host system is the potential for aggregation of several data packets, which can arrive immediately after the first one, for example, in a single notification. Given a stream with continuous data packet arrival, a value may be set, either statically or dynamically, for notification delay and this value may be configurable for the host system per communication socket.

7522581, Apr 21, 2009

Aug 1, 2006

11/497948

Arup Acharya - Nanuet NY, US
Erich M. Nahum - New York NY, US
John Michael Tracey - Scarsdale NY, US
Xiping Wang - Putnam Valley NY, US
Charles P. Wright - Hartsdale NY, US
Zhen Xiao - White Plains NY, US

International Business Machines Corporation - Armonk NY

H04L 12/66
H04L 12/28
H04L 12/56

370352, 37039542

A method for operating a server having a maximum capacity for servicing requests comprises the following steps: receiving a plurality of requests; classifying each request according to a value; determining a priority for handling the request according to the value, such that requests with higher values are assigned higher priorities; placing each request in one of multiple queues according to its priority value; and dropping the requests with the lowest priority when the plurality of requests are received at a rate that exceeds the maximum capacity. The server operates according to a session initiation protocol. Classifying each request comprises running a classification algorithm. The classification algorithm comprising steps of: receiving a rule set, each rule comprising headers and conditions; creating a condition table by taking a union of all conditions in the rules; creating a header table by extracting a common set of headers from the condition table; extracting the relevant headers from the header table; determining a matching rule; creating a bit vector table; selecting the matching rule according to data in the bit vector table; and applying the rule to place the message in the appropriate queue.

7930422, Apr 19, 2011

Jul 14, 2004

10/890978

Douglas Morgan Freimuth - New York NY, US
Elbert C. Hu - Elmhurst NY, US
Ronald Mraz - South Salem NY, US
Erich M. Nahum - New York NY, US
Prashant Pradhan - New Rochelle NY, US
Sambit Sahu - Mahopac NY, US
John Michael Tracey - Scarsdale NY, US

International Business Machines Corporation - Armonk NY

G06F 15/16

709234, 709250

A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, mechanisms for handling memory management and optimization within a system utilizing an offload network adapter are provided. The memory management mechanism permits both buffered sending and receiving of data as well as zero-copy sending and receiving of data. In addition, the memory management mechanism permits grouping of DMA buffers that can be shared among specified connections based on any number of attributes. The memory management mechanism further permits partial send and receive buffer operation, delaying of DMA requests so that they may be communicated to the host system in bulk, and expedited transfer of data to the host system.

7962628, Jun 14, 2011

May 12, 2009

12/464741

Douglas Morgan Freimuth - New York NY, US
Elbert C. Hu - Elmhurst NY, US
Ronald Mraz - South Salem NY, US
Erich M. Nahum - New York NY, US
Prashant Pradhan - New Rochelle NY, US
Sambit Sahu - Mahopac NY, US
John Michael Tracey - Scarsdale NY, US

International Business Machines Corporation - Armonk NY

G06F 15/16

709227, 709225, 709226, 709201, 709217, 370235, 370389, 370419

A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, a mechanism for improving connection establishment in a system utilizing an offload network adapter is provided. The connection establishment mechanism provides the ability to offload connection establishment and maintenance of connection state information to the offload network adapter. As a result of this offloading of connection establishment and state information maintenance, the number of communications needed between the host system and the offload network adapter may be reduced. In addition, offloading of these functions to the offload network adapter permits bulk notification of established connections and state information to the host system rather than piecemeal notifications as is present in known computing systems.

8139477, Mar 20, 2012

Jul 24, 2009

12/508736

Douglas M. Freimuth - Hawthorne NY, US
Charles L. Haymes - Yorktown Heights NY, US
David P. Olshefski - Hawthorne NY, US
John M. Tracey - Hawthorne NY, US
Dinesh Verma - Hawthorne NY, US
Charles P. Wright - Hawthorne NY, US

International Business Machines Corporation - Armonk NY

G01R 31/08

370217, 370222

A method and apparatus in accordance with the present invention provides monitoring a self-adjusting multi-tier processing system. At least one computing resource of one of the tiers of the self-adjusting multi-tier processing system is dynamically bypassed based on at least one predetermined criterion, wherein dynamically bypassing energizes or de-energizes a bypass control switch that operates to route data between tiers of the system in a manner that excludes the at least one computing resource.