JPH0486043A - Redundant switching system for atm switch - Google Patents

Redundant switching system for atm switch

Info

Publication number
JPH0486043A
JPH0486043A JP19965890A JP19965890A JPH0486043A JP H0486043 A JPH0486043 A JP H0486043A JP 19965890 A JP19965890 A JP 19965890A JP 19965890 A JP19965890 A JP 19965890A JP H0486043 A JPH0486043 A JP H0486043A
Authority
JP
Japan
Prior art keywords
switch
cell
control
active
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP19965890A
Other languages
Japanese (ja)
Other versions
JP2671576B2 (en
Inventor
Ryuichi Ikematsu
Akihiro Miyamoto
Original Assignee
Nec Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nec Corp filed Critical Nec Corp
Priority to JP19965890A priority Critical patent/JP2671576B2/en
Publication of JPH0486043A publication Critical patent/JPH0486043A/en
Application granted granted Critical
Publication of JP2671576B2 publication Critical patent/JP2671576B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To execute the redundant changeover of an synchronous transfer mode (ATM) switch without instantaneous interruption and without abandonning cells by using the idle cell or synchronizing cell of an input data for instructing timing for the write redundant switch of switch information.
CONSTITUTION: The switch information received from a high-order control part 2 is written in the idle cell received at a switch information inserting part 1. A supervisory and control part 3 supervises the appearance of the cell for switch control writing the switch information and controls a branching circuit 4 so as to execute switching from an active system switch 5 to an auxiliary system switch 6. The cell for switch control is finally resident at a buffer 51 in the active system switch 5, and the cell following just after is resident at a buffer 61 of the auxiliary system switch 6. When the cell for switch control is received while selecting an output signal S7 from the active system switch 5, the selection is switched to the selection of an output signal S8 from the auxiliary system switch 6. Thus, without abandonning cells resident in the buffer 51 of the active system switch 5 when receiving switch information from the high-order control part 2, the switch can be changed over without any instantaneous interruption.
COPYRIGHT: (C)1992,JPO&Japio
JP19965890A 1990-07-27 1990-07-27 ATM switch redundant switching method Expired - Lifetime JP2671576B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19965890A JP2671576B2 (en) 1990-07-27 1990-07-27 ATM switch redundant switching method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19965890A JP2671576B2 (en) 1990-07-27 1990-07-27 ATM switch redundant switching method

Publications (2)

Publication Number Publication Date
JPH0486043A true JPH0486043A (en) 1992-03-18
JP2671576B2 JP2671576B2 (en) 1997-10-29

Family

ID=16411490

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19965890A Expired - Lifetime JP2671576B2 (en) 1990-07-27 1990-07-27 ATM switch redundant switching method

Country Status (1)

Country Link
JP (1) JP2671576B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0723032A (en) * 1993-07-05 1995-01-24 Nec Corp Duplex line system switching method
JPH07321816A (en) * 1994-05-24 1995-12-08 Nec Corp System switching control method for atm switch
JPH0998187A (en) * 1995-09-29 1997-04-08 Nec Corp Phase matching control circuit for output buffer type switch
US5671213A (en) * 1994-11-04 1997-09-23 Nec Corporation Duplicated arrangement for ATM switching system
US5896381A (en) * 1996-02-16 1999-04-20 Nec Corporation Instantaneous switching unit and switching method for delay/priority control buffer
US6181675B1 (en) 1997-07-08 2001-01-30 Nec Corporation Uninterrupted switching between active and backup systems in ATM communication apparatus
US6490282B1 (en) 1998-03-12 2002-12-03 Nec Corporation Switching system for asynchronous transfer mode switch
US10292455B2 (en) 2012-07-17 2019-05-21 Shima Seiki Mfg., Ltd. Shoe upper and method for producing shoe upper

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02228146A (en) * 1989-03-01 1990-09-11 Fujitsu Ltd Self-routing exchange system
JPH02246646A (en) * 1989-03-20 1990-10-02 Fujitsu Ltd Self-routing exchange system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02228146A (en) * 1989-03-01 1990-09-11 Fujitsu Ltd Self-routing exchange system
JPH02246646A (en) * 1989-03-20 1990-10-02 Fujitsu Ltd Self-routing exchange system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0723032A (en) * 1993-07-05 1995-01-24 Nec Corp Duplex line system switching method
JPH07321816A (en) * 1994-05-24 1995-12-08 Nec Corp System switching control method for atm switch
US5671213A (en) * 1994-11-04 1997-09-23 Nec Corporation Duplicated arrangement for ATM switching system
JPH0998187A (en) * 1995-09-29 1997-04-08 Nec Corp Phase matching control circuit for output buffer type switch
US5896381A (en) * 1996-02-16 1999-04-20 Nec Corporation Instantaneous switching unit and switching method for delay/priority control buffer
US6181675B1 (en) 1997-07-08 2001-01-30 Nec Corporation Uninterrupted switching between active and backup systems in ATM communication apparatus
US6490282B1 (en) 1998-03-12 2002-12-03 Nec Corporation Switching system for asynchronous transfer mode switch
US10292455B2 (en) 2012-07-17 2019-05-21 Shima Seiki Mfg., Ltd. Shoe upper and method for producing shoe upper

Also Published As

Publication number Publication date
JP2671576B2 (en) 1997-10-29

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