ES2160586T3 - Controlador perfeccionado para conmutador de paquetes con cola de entrada. - Google Patents
Controlador perfeccionado para conmutador de paquetes con cola de entrada.Info
- Publication number
- ES2160586T3 ES2160586T3 ES93303225T ES93303225T ES2160586T3 ES 2160586 T3 ES2160586 T3 ES 2160586T3 ES 93303225 T ES93303225 T ES 93303225T ES 93303225 T ES93303225 T ES 93303225T ES 2160586 T3 ES2160586 T3 ES 2160586T3
- Authority
- ES
- Spain
- Prior art keywords
- transmission time
- port
- departure
- programmer
- output
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/50—Overload detection or protection within a single switching element
- H04L49/505—Corrective measures
- H04L49/508—Head of Line Blocking Avoidance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
- H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
- H04L49/254—Centralised controller, i.e. arbitration or scheduling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3018—Input queuing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3081—ATM peripheral units, e.g. policing, insertion or extraction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0478—Provisions for broadband connections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/55—Piezoelectric transducer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5678—Traffic aspects, e.g. arbitration, load balancing, smoothing, buffer management
- H04L2012/5679—Arbitration or scheduling
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Exchange Systems With Centralized Control (AREA)
Abstract
SE HA CONSEGUIDO UNA MEJORA SIGNIFICATIVA PARA UN CONMUTADOR DE PAQUETES EN COLA DE ENTRADA QUE USE PROGRAMADORES DE PUERTO DE SALIDA PERMITIENDO QUE LOS PROGRAMADORES DE SALIDA RECICLEN O REASIGNEN LOS TIEMPOS DE TRANSMISION DE CELDAS DE LOS PUERTOS DE ENTRADA QUE NO SEAN CAPACES DE USARLOS. CUANDO UN PROGRAMADOR DE SALIDA ASIGNA UN TIEMPO DE TRANSMISION DE CELDA A UN PUERTO DE ENTRADA Y ESE PUERTO DE ENTRADA NO ES CAPAZ DE USAR EL TIEMPO DE TRANSMISION ASIGNADA DEBIDO A UN CONFLICTO DE PLANIFICACION, POR EJEMPLO, EL PUERTO DE ENTRADA EFECTUA UNA NUEVA PETICION DEL MISMO PUERTO DE SALIDA DURANTE EL SIGUIENTE PERIODO DE PETICION SUBSECUENTE Y ENTONCES DEVUELVE LA ASIGNACION DE TIEMPO DE TRANSMISION QUE NO PUEDE USAR DE NUEVO AL PROGRAMADOR DE SALIDA. EL PROGRAMADOR DE SALIDA ALMACENA EL TIEMPO DE TRANSMISION DEVUELTO EN UNA COLA SEPARADA PARA SU ASIGNACION A PETICIONES POSTERIORES DEL PUERTO DE SALIDA EN PARTICULAR. EL RENDIMIENTO DE LA SALIDA SE MEJORA ENTRE UN 58% Y UN 92% PARA MODELOS DETRAFICO DE CELDAS DE PAQUETES AL AZAR.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/878,801 US5255265A (en) | 1992-05-05 | 1992-05-05 | Controller for input-queued packet switch |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2160586T3 true ES2160586T3 (es) | 2001-11-16 |
Family
ID=25372874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93303225T Expired - Lifetime ES2160586T3 (es) | 1992-05-05 | 1993-04-26 | Controlador perfeccionado para conmutador de paquetes con cola de entrada. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5255265A (es) |
EP (1) | EP0569172B1 (es) |
JP (1) | JP2981082B2 (es) |
CA (1) | CA2093849C (es) |
DE (1) | DE69330395T2 (es) |
ES (1) | ES2160586T3 (es) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE515148C2 (sv) * | 1993-06-23 | 2001-06-18 | Ericsson Telefon Ab L M | Styrning av cellväljare |
US5542115A (en) | 1994-06-24 | 1996-07-30 | Pioneer Tech Development Limited | Paging method and apparatus |
US5949781A (en) * | 1994-08-31 | 1999-09-07 | Brooktree Corporation | Controller for ATM segmentation and reassembly |
US5517495A (en) * | 1994-12-06 | 1996-05-14 | At&T Corp. | Fair prioritized scheduling in an input-buffered switch |
US5631908A (en) * | 1995-03-28 | 1997-05-20 | Digital Equipment Corporation | Method and apparatus for generating and implementing smooth schedules for forwarding data flows across cell-based switches |
KR100262682B1 (ko) * | 1995-04-15 | 2000-08-01 | 최병석 | 멀티캐스트 atm교환기 및 그멀티캐스트 경합조정방법 |
US5838684A (en) * | 1996-02-22 | 1998-11-17 | Fujitsu, Ltd. | Low latency, high clock frequency plesioasynchronous packet-based crossbar switching chip system and method |
US5991296A (en) * | 1996-02-22 | 1999-11-23 | Fujitsu, Ltd. | Crossbar switch and method with reduced voltage swing and no internal blocking data path |
US5923644A (en) * | 1996-10-03 | 1999-07-13 | The Board Of Trustees Of The Leland Stanford Junior University | Apparatus and method for processing multicast cells in an input-queued multicast switch |
JP2871650B2 (ja) | 1997-04-17 | 1999-03-17 | 日本電気株式会社 | データ伝送システム |
US5978858A (en) * | 1997-09-30 | 1999-11-02 | Compaq Computer Corporation | Packet protocol and distributed burst engine |
JP3125739B2 (ja) * | 1998-02-17 | 2001-01-22 | 日本電気株式会社 | バススイッチ |
US6044061A (en) * | 1998-03-10 | 2000-03-28 | Cabletron Systems, Inc. | Method and apparatus for fair and efficient scheduling of variable-size data packets in an input-buffered multipoint switch |
US6160812A (en) * | 1998-05-04 | 2000-12-12 | Cabletron Systems, Inc. | Method and apparatus for supplying requests to a scheduler in an input buffered multiport switch |
US6185221B1 (en) | 1998-11-09 | 2001-02-06 | Cabletron Systems, Inc. | Method and apparatus for fair and efficient scheduling of variable-size data packets in an input-buffered multipoint switch |
US6539026B1 (en) | 1999-03-15 | 2003-03-25 | Cisco Technology, Inc. | Apparatus and method for delay management in a data communications network |
US7197044B1 (en) * | 1999-03-17 | 2007-03-27 | Broadcom Corporation | Method for managing congestion in a network switch |
US6895015B1 (en) * | 1999-05-05 | 2005-05-17 | Advanced Micro Devices, Inc. | Dynamic time slot allocation in internal rules checker scheduler |
US7058063B1 (en) * | 1999-06-18 | 2006-06-06 | Nec Corporation | Pipelined packet scheduler for high speed optical switches |
US6731638B1 (en) * | 1999-10-14 | 2004-05-04 | Synchrodyne Networks, Inc. | Switch scheduling with common time reference |
US6934295B2 (en) * | 2000-02-09 | 2005-08-23 | Nec Corporation | Multi-mode scheduler, apparatus including multi-mode scheduler and multi-mode scheduling method |
US7158528B2 (en) * | 2000-12-15 | 2007-01-02 | Agere Systems Inc. | Scheduler for a packet routing and switching system |
US7161906B2 (en) * | 2000-12-15 | 2007-01-09 | Agere Systems Inc. | Three-stage switch fabric with input device features |
US7023841B2 (en) * | 2000-12-15 | 2006-04-04 | Agere Systems Inc. | Three-stage switch fabric with buffered crossbar devices |
JP4072315B2 (ja) * | 2000-12-26 | 2008-04-09 | 富士通株式会社 | パケットスイッチ |
US7433683B2 (en) * | 2000-12-28 | 2008-10-07 | Northstar Acquisitions, Llc | System for fast macrodiversity switching in mobile wireless networks |
US7065046B2 (en) * | 2001-04-06 | 2006-06-20 | Lucent Technologies Inc. | Scalable weight-based terabit switch scheduling method |
US20020191588A1 (en) * | 2001-06-13 | 2002-12-19 | Drexel University | Integrated circuit and packet switching system |
US20030035371A1 (en) * | 2001-07-31 | 2003-02-20 | Coke Reed | Means and apparatus for a scaleable congestion free switching system with intelligent control |
FR2830162B1 (fr) * | 2001-09-27 | 2003-12-05 | Streamcore | Dispositif de gestion partagee |
JP3747839B2 (ja) * | 2001-11-21 | 2006-02-22 | 日本電気株式会社 | 符号変換システム及びその変換方法並びに変換プログラム |
KR100483546B1 (ko) * | 2002-08-22 | 2005-04-15 | 엘지전자 주식회사 | 에이티엠 입력 셀 복제에 의한 멀티캐스트 스위칭 장치 및방법 |
GB2397966B (en) * | 2003-02-01 | 2005-04-20 | 3Com Corp | High-speed switch architecture |
GB2401279B (en) * | 2003-04-29 | 2005-06-01 | 3Com Corp | Switch module architecture |
WO2006018751A1 (en) * | 2004-08-12 | 2006-02-23 | Koninklijke Philips Electronics N.V. | A method for allocating data to at least one packet in an integrated circuit |
US8054487B2 (en) | 2004-12-16 | 2011-11-08 | International Business Machines Corporation | Mechanism to create a reservation against a future scheduling object instantiation |
US7346050B2 (en) * | 2005-01-31 | 2008-03-18 | International Business Machines Corporation | Method, system, and storage medium for delay optimization for scheduling in bufferless crossbar switches |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1196791B (it) * | 1986-11-18 | 1988-11-25 | Cselt Centro Studi Lab Telecom | Elemento di commutazione per reti di interconnessione multistadio autoinstradanti a commutazione di pacchetto |
DE3738177A1 (de) * | 1987-11-10 | 1989-05-18 | Siemens Ag | Vermittlungsknoten fuer die vermittlung von in datenpaketen uebertragenen datensignalen |
JPH0287745A (ja) * | 1988-09-26 | 1990-03-28 | Nippon Telegr & Teleph Corp <Ntt> | セル競合制御回路 |
US4979165A (en) * | 1989-06-23 | 1990-12-18 | At&T Bell Laboratories | Multiple queue bandwidth reservation packet system |
JP2803262B2 (ja) * | 1989-12-15 | 1998-09-24 | 日本電気株式会社 | パケット・スイッチ |
US5157654A (en) * | 1990-12-18 | 1992-10-20 | Bell Communications Research, Inc. | Technique for resolving output port contention in a high speed packet switch |
-
1992
- 1992-05-05 US US07/878,801 patent/US5255265A/en not_active Expired - Lifetime
-
1993
- 1993-04-13 CA CA002093849A patent/CA2093849C/en not_active Expired - Fee Related
- 1993-04-26 DE DE69330395T patent/DE69330395T2/de not_active Expired - Fee Related
- 1993-04-26 ES ES93303225T patent/ES2160586T3/es not_active Expired - Lifetime
- 1993-04-26 EP EP93303225A patent/EP0569172B1/en not_active Expired - Lifetime
- 1993-04-30 JP JP12485193A patent/JP2981082B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0569172B1 (en) | 2001-07-04 |
JPH0637805A (ja) | 1994-02-10 |
EP0569172A3 (en) | 1995-01-25 |
CA2093849C (en) | 1999-06-22 |
JP2981082B2 (ja) | 1999-11-22 |
DE69330395T2 (de) | 2002-05-16 |
CA2093849A1 (en) | 1993-11-06 |
DE69330395D1 (de) | 2001-08-09 |
EP0569172A2 (en) | 1993-11-10 |
US5255265A (en) | 1993-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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