Alan R Albrecht

US Patent:

7570640, Aug 4, 2009

Filed:

Apr 9, 2007

Appl. No.:

11/784664

Inventors:

Bruce E. LaVigne - Roseville CA, US
Mark Gooch - Roseville CA, US
Alan R. Albrecht - Granite Bay CA, US
Steven G. Jorgensen - Newcastle CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04L 12/28
H04L 12/56

US Classification:

370389, 370392, 370474, 709238

Abstract:

A network, network devices, and methods are described for locating original port information. A network device includes a network chip having a number of network ports for the device for receiving and transmitting packets. The network chip includes logic to locate original port information for a packet returned from a checking functionality.

US Patent:

7602789, Oct 13, 2009

Filed:

Oct 23, 2006

Appl. No.:

11/585034

Inventors:

Alan R. Albrecht - Roseville CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04L 12/28

US Classification:

37039532, 711216

Abstract:

A system and method for detecting new connection rates for network traffic that employs a set of tables and a hash function. Information identifying a connection is hashed to a hash value using the hash function. Each hash value identifies a location in a first table and a second table. The hash values for the connections detected during a predetermined time period are stored in the first table. The hash values for the connections detected during the predetermined time period preceding the current time period are stored in the second table. As the hash values are stored in the first table, they are compared to the hash values stored in the second table to identify new connections. The new connections are accumulated. The second table is then cleared, and the hash values for the detected connections in the next time period are stored in the second table.

US Patent:

7757152, Jul 13, 2010

Filed:

Aug 18, 2005

Appl. No.:

11/207357

Inventors:

John Wickeraad - Granite Bay CA, US
Mark Gooch - Roseville CA, US
Alan Albrecht - Granite Bay CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G11C 29/00

US Classification:

714763, 714766

Abstract:

A method for remedying data corruption in a first circuit, which may be a CAM or a TCAM. The method includes providing a RAM circuit external to the first circuit, the RAM circuit being configured for storing error detection information for data stored in the first circuit. The method also includes scrubbing the data stored in the first circuit during scrubbing cycles of the first circuit. The scrubbing corrects stored bit patterns read from the first circuit that fail an error detection test using error detection information corresponding to individual ones of the stored bit patterns. In an embodiment, ECC may be employed for the error detection test and also to correct any single bit error found.

US Patent:

7792990, Sep 7, 2010

Filed:

Apr 30, 2007

Appl. No.:

11/796973

Inventors:

Mark Gooch - Roseville CA, US
Bruce E. LaVigne - Roseville CA, US
Mauricio Sanchez - Roseville CA, US
Steven G. Jorgensen - Newcastle CA, US
Alan R. Albrecht - Granite Bay CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 15/173

US Classification:

709238, 709245

Abstract:

Embodiments of the invention may include network devices, systems, and methods, including executable instructions and/or logic, for remote client remediation. One method includes identifying a client needing remediation, tunnel-encapsulating packets originating from the client during remediation, and forwarding the tunnel-encapsulated packets to a remote remediation functionality different from an original destination address of the packets and having membership in a remediation VLAN different from the original VLAN.

US Patent:

7849503, Dec 7, 2010

Filed:

Jun 1, 2007

Appl. No.:

11/809512

Inventors:

Mauricio Sanchez - Roseville CA, US
Bruce E. LaVigne - Roseville CA, US
Alan R. Albrecht - Granite Bay CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 17/00

US Classification:

726 13, 726 11, 726 14, 726 23

Abstract:

Network devices, systems, and methods are provided for packet processing. One method includes receiving a checking functionality rule set as an input to a distribution algorithm. The method includes bifurcating and providing configuration instructions, as an output from the distribution algorithm, to a first logic plane associated with a first logical entity and a second logic plane associated with a second logical entity. A collaboration algorithm is used to provide processing coordination between the first logical entity and the second logical entity.

US Patent:

7869367, Jan 11, 2011

Filed:

Nov 30, 2005

Appl. No.:

11/291200

Inventors:

Alan R. Albrecht - Granite Bay CA, US
Steven Glen Jorgensen - Newcastle CA, US
Mark Gooch - Roseville CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G01R 31/08
G06F 11/00
G08C 15/00
H04J 1/16
H04J 3/14
H04L 1/00
H04L 12/26
H04L 12/56
G01R 31/28

US Classification:

370241, 370394, 714 51, 714715, 714742

Abstract:

A method for checking expected network traffic is disclosed. The method for checking expected network traffic includes accessing pre-registered expected results of a network traffic checking exercise that include expected packet content verification information for individual packets of the network traffic. In addition, the method includes accessing network traffic where individual packets of the network traffic include actual packet content verification information. Individual packets are identified that have expected packet content verification information that does not match their actual packet content verification information and individual packets are identified that have expected packet content verification information that does match their actual packet content verification information.

US Patent:

7873038, Jan 18, 2011

Filed:

Apr 30, 2007

Appl. No.:

11/796971

Inventors:

Bruce E. LaVigne - Roseville CA, US
Mark Gooch - Roseville CA, US
Alan R. Albrecht - Granite Bay CA, US
Paul T. Congdon - Granite Bay CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04L 12/28

US Classification:

370389, 370400

Abstract:

Network devices, systems, and methods are provided for packet processing. One network device includes a network chip including logic and a number of network ports for the device for receiving and transmitting packets therefrom. The logic is operable to group a number of ports into a membership group based on a criteria, and define a filter index in association with a network packet to indicate the membership group.

US Patent:

7903655, Mar 8, 2011

Filed:

Apr 19, 2007

Appl. No.:

11/788179

Inventors:

Mark Gooch - Roseville CA, US
Bruce E. LaVigne - Roseville CA, US
Alan R. Albrecht - Granite Bay CA, US
Steven G. Jorgensen - Newcastle CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04L 12/28
H04L 12/56
H04L 12/54
H04J 3/24
G06F 15/16
G06F 15/173
G06F 9/00
G06F 11/00
G08B 23/00

US Classification:

370392, 370409, 370428, 370474, 709236, 709238, 726 13, 726 22

Abstract:

A network, network devices, and methods are described for marked packet forwarding. A network device includes a network chip having a number of network ports for receiving and transmitting packets. The network chip includes logic to decapsulate a packet received from a tunnel, mark the packet with a handle associated with an originating network device of the packet using information from an encapsulation header, and forward the marked packet to a checking functionality having a destination address different from an original destination address of the packet.