Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2008-09-30
2008-09-30
Nguyen, Steven H (Department: 2619)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
C370S403000, C370S461000
Reexamination Certificate
active
10345707
ABSTRACT:
A switch, switched architecture and process for transferring data through an FCAL switch is disclosed. The switch uses multiple switch control circuits each coupled to one FCAL network and all connected to a crossbar switch. The switch control circuits are coupled together by a protocol bus for coordination purposes. Local conversations can occur on each FCAL loop and crossing conversations through the switch can occur concurrently. The OPN primitive is used to establish the connection before any data is transferred thereby eliminating the need for buffer memory in the switch control circuits. The destination address of each OPN is used to address a lookup table in each switch control circuit to determine if the destination node is local. If not, the destination is looked up and a connection request made on the protocol bus. If the remote port is not busy, it sends a reply which causes both ports to establish a data path through the backplane crossbar switch.
REFERENCES:
patent: 5754549 (1998-05-01), DeFoster et al.
patent: 5831985 (1998-11-01), Sandorfi
patent: 5848251 (1998-12-01), Lomelino et al.
patent: 6118776 (2000-09-01), Berman
patent: 6324181 (2001-11-01), Wong et al.
patent: 6337865 (2002-01-01), Seto et al.
patent: 6396832 (2002-05-01), Kranzler
patent: 0 719 011 (1996-06-01), None
Rickard, W., “Fibre Channel as a Network Backbone,” Weston '94, Western Electronic Show and Convention, Anaheim; Sep. 27-29, 1994; pp. 653-659.
Ravindran, G., et al., “A Comparison of Blocking and Non-Blocking Packet Switching Techniques in Hierarchical Ring Networks,” IEICE Transactions on Information and Systems, vol. E79-D, No. 8; Aug. 1996; pp. 1130-1138.
Black Alistair D.
Chan Kurt
Broadcom Corporation
Nguyen Steven H
Squire Sanders & Dempsey L.L.P.
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