Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Patent
1995-08-10
1998-05-05
Nguyen, Chau
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
370244, 370468, H04J 316, H04J 314
Patent
active
057486123
ABSTRACT:
A method and apparatus for removing a virtual connection between first and second devices in a communication system that includes at least one switch virtually connecting the first and second devices. An error in the virtual connection can be detected in at least one of the first and second devices and the at least one switch, with the detector transmitting a request to remove the virtual connection. The virtual connection then is removed from the communication system in response to the transmission of the request. The request to remove the virtual circuit may be in the form of an information frame transmitted over the virtual connection, with each system component being removed from the virtual circuit upon its processing of the information frame. Additionally, a method and apparatus for operating the virtual connection between the first and second devices. The virtual connection includes a live state in which information frames are transmitted between the first and second devices over the virtual connection at a minimum guaranteed bandwidth. The virtual connection further includes a dormant state wherein information frames are not transmitted over the virtual connection and the bandwidth guaranteed to the connection is made available to other connections in the system.
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Kumar Malavalli & Bent Stoevhase; "Distributed Computing With Fibre Channel Fabric", Canstar, 3900 Victoria Park Ave. , N.York, Ontario, Canada; Publication Date :Feb. 24, 1992, Institute of Electrical and Electronics Engineers, Inc.--Digest of Papers--Spring Compcon 92.
Malavalli Kumar
Stoevhase Bent
Kubida, Esq. William J.
Langley, Esq. Stuart T.
McDATA Corporation
Nguyen Chau
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