Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2007-05-08
2007-05-08
To, Doris H. (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
Reexamination Certificate
active
10144187
ABSTRACT:
A system and method for enabling a network switch to transmit queued packets to a device when opened by the device, and thus to utilize the Fibre Channel Arbitrated Loop (FC-AL) in full-duplex mode when possible. The switch may include a plurality of queues each associated with a device on the FC-AL for queuing incoming packets for the device. The switch may determine a next non-empty queue, open the device associated with the queue, and send packets to the device. The device may send packets to the switch concurrently with receiving packets from the switch, thus utilizing the FC-AL in full-duplex mode. When a device opens the switch to transmit packets to the switch, the switch may determine if there are packets for the device in the queue and, if so, send packets to the device concurrently with receiving packets from the device, thus utilizing the FC-AL in full-duplex mode.
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patent: 6317800 (2001-11-01), Westby et al.
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patent: 6425034 (2002-07-01), Steinmetz et al.
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Malik Kamran
Mehta Anil
Mullendore Rodney N.
Oberman Stuart F.
Schakel Keith
Hensley Kim & Edgington LLC
Nishan Systems, Inc.
To Doris H.
Wilson Robert W.
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