CA2161476A1 - Telecommunication System with Synchronous-Asynchronous Interface - Google Patents
Telecommunication System with Synchronous-Asynchronous InterfaceInfo
- Publication number
- CA2161476A1 CA2161476A1 CA2161476A CA2161476A CA2161476A1 CA 2161476 A1 CA2161476 A1 CA 2161476A1 CA 2161476 A CA2161476 A CA 2161476A CA 2161476 A CA2161476 A CA 2161476A CA 2161476 A1 CA2161476 A1 CA 2161476A1
- Authority
- CA
- Canada
- Prior art keywords
- packets
- synchronous communication
- input
- synchronous
- line card
- 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
Links
- 230000001360 synchronised effect Effects 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000001934 delay Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/60—Software-defined switches
- H04L49/606—Hybrid ATM switches, e.g. ATM&STM, ATM&Frame Relay or ATM&IP
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6402—Hybrid switching fabrics
-
- 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
-
- 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
- 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
-
- 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
- H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
- H04J2203/0003—Switching fabrics, e.g. transport network, control network
- H04J2203/0012—Switching modules and their interconnections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
- H04J2203/0003—Switching fabrics, e.g. transport network, control network
- H04J2203/0025—Peripheral units
-
- 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
- H04L2012/5638—Services, e.g. multimedia, GOS, QOS
- H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
- H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6483—Video, e.g. MPEG
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6486—Signalling Protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/20—Support for services
Abstract
Line cards provide an input/output interface between synchronous communication channels and an asynchronous network.
An input line card generates a plurality of packets where each packet contains information carried by a group of synchronous communication channels; each synchronous communication channel of the group having a destination of the same output line card. A
mechanism is provided for selecting a sequence for the sequential transmission of packets from the input line cards to the asynchronous network. The selecting mechanism minimizes the probability that a plurality of the input line cards will concurrently transmit a packet to the same output line card thereby creating a collision of packets requiring that all but one of the colliding packets be stored in a queue. Thus, minimizing collisions also minimizes queuing delays.
An input line card generates a plurality of packets where each packet contains information carried by a group of synchronous communication channels; each synchronous communication channel of the group having a destination of the same output line card. A
mechanism is provided for selecting a sequence for the sequential transmission of packets from the input line cards to the asynchronous network. The selecting mechanism minimizes the probability that a plurality of the input line cards will concurrently transmit a packet to the same output line card thereby creating a collision of packets requiring that all but one of the colliding packets be stored in a queue. Thus, minimizing collisions also minimizes queuing delays.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/350,925 US5519700A (en) | 1994-12-07 | 1994-12-07 | Telecommunication system with synchronous-asynchronous interface |
US350,925 | 1994-12-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2161476A1 true CA2161476A1 (en) | 1996-06-08 |
CA2161476C CA2161476C (en) | 2001-01-02 |
Family
ID=23378787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002161476A Expired - Fee Related CA2161476C (en) | 1994-12-07 | 1995-10-26 | Telecommunication system with synchronous-asynchronous interface |
Country Status (4)
Country | Link |
---|---|
US (1) | US5519700A (en) |
EP (1) | EP0716556A3 (en) |
JP (1) | JP2837651B2 (en) |
CA (1) | CA2161476C (en) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5956342A (en) | 1995-07-19 | 1999-09-21 | Fujitsu Network Communications, Inc. | Priority arbitration for point-to-point and multipoint transmission |
US6108304A (en) | 1996-03-08 | 2000-08-22 | Abe; Hajime | Packet switching network, packet switching equipment, and network management equipment |
DE69727660T2 (en) * | 1996-03-18 | 2004-12-23 | General Instrument Corporation | DYNAMIC BANDWIDTH ASSIGNMENT FOR A COMMUNICATION NETWORK |
US6046999A (en) * | 1996-09-03 | 2000-04-04 | Hitachi, Ltd. | Router apparatus using ATM switch |
US6034950A (en) * | 1996-12-27 | 2000-03-07 | Motorola Inc. | System packet-based centralized base station controller |
US6049543A (en) * | 1996-12-27 | 2000-04-11 | Motorola, Inc. | Transcoder for use in an ATM-based communications system |
US6018521A (en) * | 1996-12-27 | 2000-01-25 | Motorola, Inc. | Network interface subsystem for use in an ATM communications system |
US6128300A (en) * | 1997-12-03 | 2000-10-03 | Nokia High Speed Access Products Inc. | Line card with modem interace |
DE19809439C2 (en) * | 1998-03-05 | 2000-05-18 | Siemens Ag | Device for the immediate output of the response of a synchronous system to an asynchronous event |
US6373837B1 (en) | 1998-06-12 | 2002-04-16 | Lucent Technologies Inc. | System for transmitting data between circuit boards in a housing |
US6381238B1 (en) * | 1998-07-31 | 2002-04-30 | Sonus Networks | Apparatus and method for a telephony gateway |
US6757791B1 (en) * | 1999-03-30 | 2004-06-29 | Cisco Technology, Inc. | Method and apparatus for reordering packet data units in storage queues for reading and writing memory |
US6498792B1 (en) | 1999-06-03 | 2002-12-24 | Fujitsu Network Communications, Inc. | Method and apparatus for switching signals of multiple different communication protocols |
US6317426B1 (en) * | 1999-06-03 | 2001-11-13 | Fujitsu Network Communications, Inc. | Method and apparatus for hybrid protection in a switching network |
US6396847B1 (en) | 1999-06-03 | 2002-05-28 | Fujitsu Networks Communications, Inc. | Dialable data services/TDM bandwidth management |
US6891836B1 (en) | 1999-06-03 | 2005-05-10 | Fujitsu Network Communications, Inc. | Switching complex architecture and operation |
US6674751B1 (en) * | 1999-06-03 | 2004-01-06 | Fujitsu Network Communications, Inc. | Serialized bus communication and control architecture |
US6445712B1 (en) * | 1999-06-08 | 2002-09-03 | Verizon Laboratories Inc. | Broadband architecture using existing twisted pair |
US6668299B1 (en) * | 1999-09-08 | 2003-12-23 | Mellanox Technologies Ltd. | Software interface between a parallel bus and a packet network |
AU7036300A (en) | 1999-09-08 | 2001-04-10 | Mellanox Technologies Ltd. | Bridge between parallel buses over a packet-switched network |
US6765916B1 (en) | 2000-12-30 | 2004-07-20 | Redback Networks Inc. | Method and apparatus for processing of multiple protocols within data transmission signals |
US6950446B2 (en) | 2001-03-31 | 2005-09-27 | Redback Networks Inc. | Method and apparatus for simultaneously sync hunting signals |
US6941381B2 (en) * | 2001-03-31 | 2005-09-06 | Redback Networks Inc. | Method and apparatus for sync hunting signals |
US6959008B2 (en) * | 2001-03-31 | 2005-10-25 | Redback Networks Inc. | Alignment of TDM-based signals for packet transmission using framed and unframed operations |
US7593432B2 (en) * | 2001-03-31 | 2009-09-22 | Redback Networks Inc. | Method and apparatus for deframing signals |
US7245874B2 (en) * | 2001-08-01 | 2007-07-17 | Shiron Satellite Communications (1996) Ltd. | Infrastructure for telephony network |
US7324539B1 (en) | 2001-11-28 | 2008-01-29 | Redback Networks Inc. | Method and apparatus for processing channelized and unchannelized data within a signal |
US7075951B1 (en) | 2001-11-29 | 2006-07-11 | Redback Networks Inc. | Method and apparatus for the operation of a storage unit in a network element |
US7289516B2 (en) * | 2003-07-31 | 2007-10-30 | Lucent Technologies Inc. | Universal interface |
US8243733B2 (en) * | 2008-06-19 | 2012-08-14 | Marvell World Trade Ltd. | Cascaded memory tables for searching |
US20110261832A1 (en) * | 2010-04-23 | 2011-10-27 | Lobuono Mark Anthony | Method, system, and apparatus for exchanging input and output data |
US10397896B2 (en) | 2017-04-19 | 2019-08-27 | International Business Machines Corporation | IP address geo-position detection based on landmark sequencing |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2803262B2 (en) * | 1989-12-15 | 1998-09-24 | 日本電気株式会社 | Packet switch |
US5168492A (en) * | 1991-04-11 | 1992-12-01 | Northern Telecom Limited | Rotating-access ATM-STM packet switch |
US5361255A (en) * | 1991-04-29 | 1994-11-01 | Dsc Communications Corporation | Method and apparatus for a high speed asynchronous transfer mode switch |
JPH05244187A (en) * | 1992-02-14 | 1993-09-21 | Nippon Telegr & Teleph Corp <Ntt> | Intra-device monitoring method |
US5365521A (en) * | 1992-02-20 | 1994-11-15 | Nippon Telegraph And Telephone Corporation | Data transmission and transmission path setting among exchange modules in building block type exchanger |
GB2270820A (en) * | 1992-09-16 | 1994-03-23 | Plessey Telecomm | STM/ATM network interfacing |
-
1994
- 1994-12-07 US US08/350,925 patent/US5519700A/en not_active Expired - Lifetime
-
1995
- 1995-10-26 CA CA002161476A patent/CA2161476C/en not_active Expired - Fee Related
- 1995-11-28 EP EP95308521A patent/EP0716556A3/en not_active Withdrawn
- 1995-12-07 JP JP34473495A patent/JP2837651B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH08293877A (en) | 1996-11-05 |
CA2161476C (en) | 2001-01-02 |
EP0716556A2 (en) | 1996-06-12 |
EP0716556A3 (en) | 1998-12-16 |
US5519700A (en) | 1996-05-21 |
JP2837651B2 (en) | 1998-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |