Samuel C Lay

age ~63

from Superior, CO

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Automatic Testing Of Redundant Switching Element And Automatic Switchover
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US Patent:

6643602, Nov 4, 2003
Filed:

Oct 29, 2002
Appl. No.:

10/284120
Inventors:

Samuel C. Lay - Broomfield CO
Jeffrey J. Nelson - Louisville CO
James Rodgers - Boulder CO
Kenneth N. Jessop - Arvada CO
Assignee:

Mcdata Corporation - Broomfield CO
International Classification:

G02B 628
US Classification:

702117, 398 43
Abstract:

A non-disruptive, on-line testing and switchover method and apparatus in a high availability, fibre channel switching environment. In a network having an active switching element, a redundant switching element and a port, one aspect of the present invention provides for verifying a working data path from the port to the redundant switching element, and thereafter verifying a working control path to the redundant switching element. Both verification tests take place without interrupting operation on the network. In addition, another aspect of the present invention provides for recognizing a failure occurrence in the active switching element, and thereafter switching to the redundant switching element with the potential for minimal frame loss.

Method And Apparatus For Providing Optimized High Speed Link Utilization
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US Patent:

6862293, Mar 1, 2005
Filed:

Nov 13, 2001
Appl. No.:

10/010813
Inventors:

Samuel C. Lay - Superior CO, US
Jeffrey J. Nelson - Louisville CO, US
Assignee:

McData Corporation - Broomfield CO
International Classification:

H04L012/50
H04Q011/00
H04J003/02
US Classification:

370420, 370360, 370428, 370463, 370537
Abstract:

A method and apparatus for providing link aggregation and 10. 2 gigabit per second throughput in a Fibre Channel fabric. One aspect of the present invention provides a port module for receiving a 10. 2 gigabit link on a fiber interface and providing trunking of a plurality links on the backplane, wherein the backplane is coupled to a switching element. In addition, another aspect of the present invention provides a first port module coupled to a switching element for receiving a 10. 2 gigabit link from a fabric on a fiber interface and thereafter transmitting fiber channel frames to a second port module coupled to the switching element that interfaces to the fabric at 10. 2 gigabits, thereby providing 10. 2 gigabit to 10. 2 gigabit throughput from the first port module to the second port module.

Automatic Testing Of Redundant Switching Element And Automatic Switchover
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US Patent:

20020147569, Oct 10, 2002
Filed:

Apr 9, 2001
Appl. No.:

09/829448
Inventors:

Samuel Lay - Broomfield CO, US
Jeffrey Nelson - Louisville CO, US
James Rodgers - Boulder CO, US
Kenneth Jessop - Arvada CO, US
International Classification:

G06F011/30
US Classification:

702/183000
Abstract:

A non-disruptive, on-line testing and switchover method and apparatus in a high availability, fiber channel switching environment. In a network having an active switching element, a redundant switching element and a port, one aspect of the present invention provides for verifying a working data path from the port to the redundant switching element, and thereafter verifying a working control path to the redundant switching element. Both verification tests take place without interrupting operation on the network. In addition, another aspect of the present invention provides for recognizing a failure occurrence in the active switching element, and thereafter switching to the redundant switching element with the potential for minimal frame loss.