Multiplex communications – Channel assignment techniques – Details of circuit or interface for connecting user to the...
Patent
1998-02-11
2000-11-14
Nguyen, Chau
Multiplex communications
Channel assignment techniques
Details of circuit or interface for connecting user to the...
370537, H04L 1266, H04J 302
Patent
active
061480045
ABSTRACT:
A method and apparatus for the establishment of dynamic Enterprise System Connection ("ESCON") connections over a Fibre Channel connection allows a port state machine (or port module) to request dynamic ESCON connections from the exchange context of the Fibre Channel frame and to implement dynamic linking of the Fibre Channel exchanges to ESCON ports while also linking and monitoring the status of these connections for all subsequent frames associated on a particular exchange. In a particular embodiment, the method and apparatus provides the ability to establish dynamic connections through an ESCON Director switch based off of the Originator Exchange Identifier ("OX.sub.-- ID") of the FC-2 header and information contained in the FC-4 header of the Fibre Channel frame. Once a connection path has been established for a particular OX.sub.-- ID, that connection is maintained until the exchange is terminated.
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Grant Robert Hale
Nelson Jeffrey J.
Bachand Richard A.
Kubida William J.
Langley Stuart T.
Lee Chiho Andrew
McDATA Corporation
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