US5315588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling frame-relay module, and high-speed switching system
Assignee: Fujitsu Ltd
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Filing: 1993-09-07
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Granted: 1994-05-24
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Expires: 2013-09-07
Abstract
Abstract A method of controlling a frame-relay module includes steps of outputting a control-information frame from a control unit connected to an ATM switch, the control-information frame containing data specifying a frame-relay interface circuit as well as a processing command, assembling the control-information frame into an ATM cell and sending the ATM cell, via the ATM switch, to a frame-relay module in which the specified frame-relay interface circuit is present, restoring the ATM cell to a control-information frame by an ATM interface circuit and a cell assembly/disassembly circuit contained in the frame-relay module, causing the specified frame-relay interface circuit to accept the control-information frame, and executing processing, which conforms to the command contained in the control-information frame, in the frame-relay interface circuit.
Inventors
- 👤 Yasuhiro Kajiwara
- 👤 Shigehiko Yazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:38
CPC Classifications
H; H04; H04L; H04L49/00; H04L49/30; H04L49/3081; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5614; H04L2012/5615; H04L2012/5629; H04L2012/5631; H04L2012/5632; H04L2012/5638; H04L2012/5645; H04L2012/5646; H04L2012/5652
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
239 words
A method of controlling a frame-relay module having a plurality of frame-relay interface circuits, each of which is equipped with a logical-path setting table, for adding logical-path information to a frame, which has entered from a local fast bus, upon referring to said logical-path setting table, and for accepting a frame sent from another party and then sending the frame to the local fast bus, a cell assembly/disassembly circuit for assembling a frame into an ATM cell and disassembling an ATM cell into a frame, and an ATM interface circuit for sending an ATM cell that has entered from the cell assembly/disassembly circuit to an ATM switch and inputting an ATM cell, which has entered from the ATM switch, to the cell assembly/disassembly circuit, said method comprising the steps of: outputting a control-information frame from a control unit connected to the ATM switch, said control-information frame containing data specifying a frame-relay interface circuit as well as a processing command; assembling said control-information frame into an ATM cell and sending said ATM cell, via the ATM switch, to a frame-relay module in which the specified frame-relay interface circuit is present; restoring the ATM cell to a control-information frame by the ATM interface circuit and cell assembly/disassembly circuit in the frame-relay module; causing the specified frame-relay interface circuit to accept said control-information frame; and executing processing, which conforms to the command contained in the control-information frame, in the frame-relay interface circuit.
Claim 2
Independent Claim
239 words
A method of controlling a frame-relay module having a plurality of frame-relay interface circuits, each of which is equipped with a logical-path setting table, for adding logical-path information to a frame, which has entered from a local fast bus, upon referring to said logical-path setting table, and for accepting a frame sent from another party and then sending the frame to the local fast bus, a cell assembly/disassembly circuit for assembling a frame into an ATM cell and disassembling an ATM cell into a frame, and an ATM interface circuit for sending an ATM cell that has entered from the cell assembly/disassembly circuit to an ATM switch and inputting an ATM cell, which has entered from the ATM switch, to the cell assembly/disassembly circuit, said method comprising the steps of: outputting a control-information frame from a control unit connected to the ATM switch, said control-information frame containing data specifying a frame-relay interface circuit as well as a processing command; assembling said control-information frame into an ATM cell and sending said ATM cell, via the ATM switch, to a frame-relay module in which the specified frame-relay interface circuit is present; restoring the ATM cell to a control-information frame by the ATM interface circuit and cell assembly/disassembly circuit in the frame-relay module; causing the specified frame-relay interface circuit to accept said control-information frame; and executing processing, which conforms to the command contained in the control-information frame, in the frame-relay interface circuit.
Claim 3
Dependent Claim
71 words
The method according to claim 1, further comprising the steps of: distinguishing a data frame from a control-information frame by an identifier; determining whether a frame accepted in the frame-relay interface circuit is a control-information frame or a data frame; and executing processing conforming to a command if a frame is a control-information frame and sending a data frame to the local fast bus if a frame is the data frame.
Claim 4
Dependent Claim
40 words
The method according to claim 2, wherein when the frame-relay interface circuit executes processing conforming to a command contained in a control-information frame, a control-information frame containing results of processing is sent to the control unit via the ATM switch.
Claim 5
Dependent Claim
73 words
The method according to claim 1, wherein if logical-path information is to be registered in a logical-path setting table possessed by a frame-relay interface circuit, the control unit outputs a control-information frame having data specifying the frame-relay interface circuit, the logical-path information to be registered and a registration command, and the frame-relay interface circuit accepts said control-information frame and registers the logical-path information contained in the control-information frame in the logical-path setting table.
Claim 6
Independent Claim
296 words
A method of controlling a frame-relay module having a plurality of frame-relay interface circuits, each of which is equipped with a logical-path setting table, for adding logical-path information to a frame, which has entered from a local fast bus, upon referring to said logical-path setting table, and for accepting a frame sent from another party and then sending the frame to the local fast bus, a cell assembly/disassembly circuit for assembling a frame into an ATM cell and disassembling an ATM cell into a frame, and an ATM interface circuit for sending an ATM cell that has entered from the cell assembly/disassembly circuit to an ATM switch and inputting an ATM cell, which has entered from the ATM switch, to the cell assembly/disassembly circuit, said method comprising the steps of: entering, from a console, a port address PA of a frame-relay interface circuit, data specifying a frame-relay module to which said frame-relay interface circuit belongs, a processing command and processing data; outputting, from a control unit, a control-information frame containing a port address PA, a processing command and processing data; assembling said control-information frame into an ATM cell and adding VPI/VCI, which conforms to said frame-relay module, to said ATM cell; routing the ATM cell to a frame-relay module based upon the VPI/VCI; restoring the ATM cell to a control-information frame by the ATM interface circuit and cell assembly/disassembly circuit in said frame-relay module, and sending the control-information frame to a bus to which each frame-relay interface circuit is connected; causing a frame-relay interface circuit, to which a port address identical with the port address contained in the control-information frame has been assigned, to accept said control-information frame; and executing processing, which conforms to the command contained in the control-information frame, in the frame-relay interface circuit.
Claim 7
Independent Claim
296 words
A method of controlling a frame-relay module having a plurality of frame-relay interface circuits, each of which is equipped with a logical-path setting table, for adding logical-path information to a frame, which has entered from a local fast bus, upon referring to said logical-path setting table, and for accepting a frame sent from another party and then sending the frame to the local fast bus, a cell assembly/disassembly circuit for assembling a frame into an ATM cell and disassembling an ATM cell into a frame, and an ATM interface circuit for sending an ATM cell that has entered from the cell assembly/disassembly circuit to an ATM switch and inputting an ATM cell, which has entered from the ATM switch, to the cell assembly/disassembly circuit, said method comprising the steps of: entering, from a console, a port address PA of a frame-relay interface circuit, data specifying a frame-relay module to which said frame-relay interface circuit belongs, a processing command and processing data; outputting, from a control unit, a control-information frame containing a port address PA, a processing command and processing data; assembling said control-information frame into an ATM cell and adding VPI/VCI, which conforms to said frame-relay module, to said ATM cell; routing the ATM cell to a frame-relay module based upon the VPI/VCI; restoring the ATM cell to a control-information frame by the ATM interface circuit and cell assembly/disassembly circuit in said frame-relay module, and sending the control-information frame to a bus to which each frame-relay interface circuit is connected; causing a frame-relay interface circuit, to which a port address identical with the port address contained in the control-information frame has been assigned, to accept said control-information frame; and executing processing, which conforms to the command contained in the control-information frame, in the frame-relay interface circuit.
Claim 8
Dependent Claim
71 words
The method according to claim 5, further comprising the steps of: distinguishing a data frame from a control-information frame by an identifier; determining whether a frame accepted in the frame-relay interface circuit is a control-information frame or a data frame; and executing processing conforming to a command if a frame is a control-information frame and sending a data frame to the local fast bus if a frame is the data frame.
Claim 9
Dependent Claim
40 words
The method according to claim 6, wherein when the frame-relay interface circuit executes processing conforming to a command contained in a control-information frame, a control-information frame containing results of processing is sent to the control unit via the ATM switch.
Claim 10
Dependent Claim
44 words
The method according to claim 5, wherein if new logical-path information is to be registered in a logical-path setting table possessed by a frame-relay interface circuit, said processing command is a registration command and said processing data is the logical-path information to be registered.
Claim 11
Dependent Claim
294 words
A high-speed switching system having a plurality of frame-relay interface circuits, each of which is equipped with a logical-path setting table, for adding logical-path information to a frame, which has entered from a local fast bus, upon referring to said logical-path setting table, and for accepting a frame sent from another party and then sending the frame to the local fast bus, a cell assembly/disassembly circuit for assembling a frame into an ATM cell and disassembling an ATM cell into a frame, and an ATM interface circuit for sending an ATM cell that has entered from the cell assembly/disassembly circuit to an ATM switch and inputting an ATM cell, which has entered from the ATM switch, to the cell assembly/disassembly circuit, said system comprising: input means for entering a port address PA of a frame-relay interface circuit, data specifying a frame-relay module to which the frame-relay interface circuit belongs, a processing command and processing data; a control unit for creating and outputting a control-information frame containing a port address PA, a processing command and processing data; an ATM signaling unit for assembling the control-information frame into an ATM cell and adding a VPI/VCI, which conforms to the frame-relay module, to said ATM cell; an ATM switch for routing the ATM cell to a frame relay module based upon the VPI/VCI; means provided in the frame-relay module for restoring the received ATM cell to a control-information frame and sending said control-information frame to a bus to which each frame-relay interface circuit is connected; and a frame-relay interface circuit, to which a prescribed port address has been assigned, for accepting a control-information frame containing a port address identical with the said prescribed port address and executing processing conforming to a command contained in this control-information frame.
Claim 12
Dependent Claim
294 words
A high-speed switching system having a plurality of frame-relay interface circuits, each of which is equipped with a logical-path setting table, for adding logical-path information to a frame, which has entered from a local fast bus, upon referring to said logical-path setting table, and for accepting a frame sent from another party and then sending the frame to the local fast bus, a cell assembly/disassembly circuit for assembling a frame into an ATM cell and disassembling an ATM cell into a frame, and an ATM interface circuit for sending an ATM cell that has entered from the cell assembly/disassembly circuit to an ATM switch and inputting an ATM cell, which has entered from the ATM switch, to the cell assembly/disassembly circuit, said system comprising: input means for entering a port address PA of a frame-relay interface circuit, data specifying a frame-relay module to which the frame-relay interface circuit belongs, a processing command and processing data; a control unit for creating and outputting a control-information frame containing a port address PA, a processing command and processing data; an ATM signaling unit for assembling the control-information frame into an ATM cell and adding a VPI/VCI, which conforms to the frame-relay module, to said ATM cell; an ATM switch for routing the ATM cell to a frame relay module based upon the VPI/VCI; means provided in the frame-relay module for restoring the received ATM cell to a control-information frame and sending said control-information frame to a bus to which each frame-relay interface circuit is connected; and a frame-relay interface circuit, to which a prescribed port address has been assigned, for accepting a control-information frame containing a port address identical with the said prescribed port address and executing processing conforming to a command contained in this control-information frame.
Claim 13
Dependent Claim
44 words
The system according to claim 9, wherein if new logical-path information is to be registered in a logical-path setting table possessed by the frame-relay interface circuit, said processing command is a registration command and said processing data is the logical-path information to be registered.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-23 | 1997-11-22 | 1998-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-23 | 2001-11-22 | 2002-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-23 | 2005-11-22 | 2006-05-24 | $7700.00 | Window Closed / Lapsed |