Randall W Johnson

US Patent:

7111102, Sep 19, 2006

Filed:

Oct 6, 2003

Appl. No.:

10/680842

Inventors:

David Doak - Wake Forest NC, US
Garry P. Epps - Sunnyvale CA, US
Guy Fedorkow - Bedford MA, US
Mark A. Gustlin - Campbell CA, US
Steven P. Holmes - Wake Forest NC, US
Randall A. Johnson - Raleigh NC, US
Promode Nedungadi - Santa Clara CA, US
John P. Prokopik - Auburn NH, US
Mohammed I. Tatar - Ottawa, CA
Michael J. Taylor - Pepperell MA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 13/14
H04L 9/00

US Classification:

710305, 710104, 370912

Abstract:

A port adapter for connecting zero or more network interfaces to a host system having a SPI-4 bus is disclosed. The port adapter comprises zero or more network interfaces; a SPI-4 bus coupled to a host system to provide a communication channel between the host and the network interfaces; a control bus coupled to the host system for controlling and monitoring the port adapter; and interface logic that interfaces the SPI-4 bus and the control bus to the network interfaces. Methods are provided for selecting and using one of a small plurality of different packet formats for various networking technologies, so that the port adapter can hide details of the technology that it handles from the host system, and for operating the host system's SPI-4 bus at one of several speeds based on bandwidth requirements of the port adapter.

US Patent:

7433988, Oct 7, 2008

Filed:

Jun 12, 2007

Appl. No.:

11/818006

Inventors:

David Doak - Wake Forest NC, US
Garry P. Epps - Sunnyvale CA, US
Guy Fedorkow - Bedford MA, US
Mark A. Gustlin - Campbell CA, US
Steven P. Holmes - Wake Forest NC, US
Randall A. Johnson - Raleigh NC, US
Promode Nedungadi - Santa Clara CA, US
Mohammed I. Tatar - Ottawa, CA

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 13/14
H04B 7/00
H04L 12/66

US Classification:

710305, 710 52, 710250, 710100, 710104, 370318, 370353, 370354, 370356

Abstract:

A port adapter for connecting zero or more network interfaces to a host system having a SPI-4 bus is disclosed. The port adapter comprises zero or more network interfaces; a SPI-4 bus coupled to a host system to provide a communication channel between the host and the network interfaces; a control bus coupled to the host system for controlling and monitoring the port adapter; and interface logic that interfaces the SPI-4 bus and the control bus to the network interfaces. Methods are provided for selecting and using one of a small plurality of different packet formats for various networking technologies, so that the port adapter can hide details of the technology that it handles from the host system, and for operating the host system's SPI-4 bus at one of several speeds based on bandwidth requirements of the port adapter.

US Patent:

20060277346, Dec 7, 2006

Filed:

Aug 11, 2006

Appl. No.:

11/502965

Inventors:

David Doak - Wake Forest NC, US
Garry Epps - Sunnyvale CA, US
Guy Fedorkow - Bedford MA, US
Mark Gustlin - Campbell CA, US
Steven Holmes - Wake Forest NC, US
Randall Johnson - Raleigh NC, US
Promode Nedungadi - Santa Clara CA, US
John Prokopik - Auburn NH, US
Mohammed Tatar - Ottawa, CA
Michael Taylor - Pepperell MA, US

International Classification:

G06F 13/14

US Classification:

710305000

Abstract:

A port adapter for connecting zero or more network interfaces to a host system having a SPI-4 bus is disclosed. The port adapter comprises zero or more network interfaces; a SPI-4 bus coupled to a host system to provide a communication channel between the host and the network interfaces; a control bus coupled to the host system for controlling and monitoring the port adapter; and interface logic that interfaces the SPI-4 bus and the control bus to the network interfaces. Methods are provided for selecting and using one of a small plurality of different packet formats for various networking technologies, so that the port adapter can hide details of the technology that it handles from the host system, and for operating the host system's SPI-4 bus at one of several speeds based on bandwidth requirements of the port adapter.