WO2000020986A1 - Dispositif, procede et systeme de mise en oeuvre de qualite de reseaux de service a temps d'attente nul utilisant le multiplexage par repartition en longueur d'onde dense - Google Patents

Dispositif, procede et systeme de mise en oeuvre de qualite de reseaux de service a temps d'attente nul utilisant le multiplexage par repartition en longueur d'onde dense Download PDF

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Publication number
WO2000020986A1
WO2000020986A1 PCT/US1999/023059 US9923059W WO0020986A1 WO 2000020986 A1 WO2000020986 A1 WO 2000020986A1 US 9923059 W US9923059 W US 9923059W WO 0020986 A1 WO0020986 A1 WO 0020986A1
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WO
WIPO (PCT)
Prior art keywords
nic
computer
software
fiber optic
services
Prior art date
Application number
PCT/US1999/023059
Other languages
English (en)
Other versions
WO2000020986A8 (fr
WO2000020986A9 (fr
Inventor
Narayana S. Kamath
Champa Bhushan
Original Assignee
Lightel Systems Corporation
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 Lightel Systems Corporation filed Critical Lightel Systems Corporation
Priority to AU64130/99A priority Critical patent/AU6413099A/en
Priority to CA002346392A priority patent/CA2346392A1/fr
Priority to EP99951760A priority patent/EP1119952A1/fr
Publication of WO2000020986A1 publication Critical patent/WO2000020986A1/fr
Publication of WO2000020986A8 publication Critical patent/WO2000020986A8/fr
Publication of WO2000020986A9 publication Critical patent/WO2000020986A9/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0071—Provisions for the electrical-optical layer interface

Definitions

  • the present invention generally relates to Dense Wavelength Division Multiplexing (DWDM) over fiber optic media.
  • DWDM Dense Wavelength Division Multiplexing
  • the present invention includes a high performance network interface card (HP-NIC) comprising a first interface that connects to a first computer, a second interface that connects to a second computer via at least two fiber optic links, an
  • HP-NIC high performance network interface card
  • HP-NIC communications software that transfers information between the first computer and the second computer. This transfer is accomplished by sending and receiving Dense Wavelength Division Multiplex (DWDM) Laser signals across said at least two fiber optic links.
  • a computer network interface includes a high performance network interface card (HP-NIC) that links application computers using fiber optic links.
  • HP-NIC sends and receives Dense Wavelength Division Multiplex (DWDM) Laser signals to transport computer data bits and bytes to implement parallel independent communications of software services and processes using different wavelength Laser signals.
  • the HP-NIC also includes communication software that exchanges data between a computer and the HP -NIC. Furthermore, the HP -NIC enables transmission and reception of Laser signals to and from fiber optic links.
  • a method of communication of streams of data includes transporting streams of data associated with a software task, service, socket, daemon, software object access, and for an application or parts thereof. This transporting is performed by using, assigning and dedicating one or more Laser wavelength signals to each of the tasks, services, daemons, software object accesses, information streams, and applications or a part thereof, from among the wavelengths in the DWDM signals implemented in a HP-NIC card and the software that implements this method.
  • the uniqueness of the invention is the mapping of the tasks, services, daemons, software object accesses, information streams and applications or a part thereof, that is, any higher layer (layer 4 and above) entities of the protocol stack to wavelengths as compared to the current designs and operations of routing or switching layer 3 network protocol layer or below.
  • the present invention thus results in Quality of Service (QoS) by minimizing delays, delay jitter and delivery assurance of signals or information associated with end to end communications at higher layers of the protocol stack or streams.
  • QoS Quality of Service
  • the present invention also includes a method to network computers and to switch, route and forward parallel independent data streams within and between the computers to implement very high performance 'zero latency' parallel processing networks, and software to implement the methods
  • An additional embodiment of the present invention includes a computer having an operating system connected to a HP-NIC includes an operating system. Examples of such operating systems include Microsoft Windows NT, Microsoft Windows 95, Microsoft Windows 98, several versions of UNIX operating system, as well as any mainframe operating system or platform. Examples of mainframe operating systems and platforms include IBM VM 370, IBM MVS and IBM platforms.
  • the present invention enables an HP-NIC to be connected to any future computer or electronic devices that can communicate using DWDM and/or software based communications.
  • computers connected to an HP -NIC may include distributed database management systems such as Oracle, DB2, Microsoft SQL server.
  • the present invention may comprise high speed disk arrays, CD juke boxes and other memory systems.
  • these computer systems may include core network services such as
  • an embodiment of the present invention implements common channel signaling networks such as Signaling System 7 and other Intelligent Network (IN) systems such as European Advanced Intelligent Network (AIN) systems.
  • IN Intelligent Network
  • AIN European Advanced Intelligent Network
  • Another embodiment of the present invention includes Packet over SONET (POS), and ATM over SONET (AOS) on the same fiber, but on different wavelengths.
  • POS Packet over SONET
  • AOS ATM over SONET
  • an embodiment of the present invention creates connection oriented communications at the network, socket or port, transport, session. presentation, and application process layers to implement Quality of Service (QoS) at these layers by monitoring and managing connections at these layers.
  • QoS Quality of Service
  • an embodiment of the present invention enables the automatic assignment of different wavelength DWDM channels to different data streams associated with software processes and services to implement recovery from failure and re-routing redundancy and back up communications extra capacity.
  • the invention provides software to implement these features.
  • an embodiment of the present invention includes a Zero Latency Network Architecture (ZLNA) with very high performance and independent communications between software process and services in computer systems.
  • ZLNA Zero Latency Network Architecture
  • FIG. 1 illustrates a computer communication system according to a preferred embodiment of the present invention
  • FIG. 2 illustrates an expanded network of computers according to a preferred embodiment.
  • This invention relates to Dense Wavelength Division Multiplexing over fiber optic media to network computers at very fast speeds.
  • this invention consists of a device, a method and a system for integrating software processes and services within computers for 'zero latency' communications between the processes and services using DWDM over fiber optic links.
  • software processes and services that can establish and sustain zero latency communications between computers are distributed database access (DDA), remote procedure calls (RPC), file transfer protocol (FTP), telnet terminal access (telnet), simple mail transfer protocol (SMTP), other similar software daemons and sockets, user applications, and associated software tasks and threads. Since computers were invented and came into use for information processing (circa 1955), they were enabled to communicate with one another in the following ways:
  • Fiber optic communication technology initially used a single wavelength Laser light source over single or multi-mode optical fiber.
  • the speed of fiber optic communications using single wavelength transmission are typically from 100 mega bits per second (MBPS) for fiber distributed data interface (FDDI) networks and Fiber Channels to 9.95 giga bits per second (GBPS) for synchronous optical network optical carrier 192 (SONET OC-192).
  • MBPS mega bits per second
  • FDDI fiber distributed data interface
  • GBPS giga bits per second
  • SONET OC-192 synchronous optical network optical carrier 192
  • Recently fiber optic communications using multiple wavelengths using a technology called Dense Wavelength Division Multiplexing (DWDM) have been introduced which has resulted in increasing the bandwidth on fiber optic links by a factor of up to 40 over the existing fiber optic cables.
  • DWDM Dense Wavelength Division Multiplexing
  • the DWDM technology has been implemented in fiber optic termination equipment such as fiber optic channel banks, cross-connects, and multiplexing equipment that combine and transmit a very large number of channels and circuits from telephone switching equipment such as central office switches, data communication equipment such as Internet Protocol (IP) routers and switches, television video switches, and asynchronous transfer mode (ATM) switches.
  • IP Internet Protocol
  • ATM asynchronous transfer mode
  • FIG. 1 depicts a computer communication system 100 using the device, the method, and the system consistent with the present invention.
  • Computer communication system 100 includes first computer 101 connected to a High Performance Network Interface Card (HP-NIC) 102 via a bus interface.
  • HP-NIC High Performance Network Interface Card
  • First computer 101 communicates to HP-NIC 102 via HP-NIC communication software (HP-NIC CSW), which is an integral part of HP-NIC 102 so that computer software (operating system as well as other software including application software) exchanges information with the HP-NIC communication software which in turn sends and receives computer data via HP-NIC 102, over fiber optic links 110 and 111.
  • HP-NIC 102 receives and transmits computer data such as fiber optic signals encoded in different DWDM wavelengths, designated ⁇ l, ⁇ 2,..., ⁇ n, of Lasers over the fiber optic link.
  • second computer 104 interfaces with fiber optic links 110 and 111 via its HP-NIC card 105.
  • Second computer 104 thus sends and receives data encoded in different wavelengths to and from first computer 101 and the two computers communicate streams of data.
  • a stream of data is the data associated with a software process or service, which is encoded in a selected wavelength, ⁇ i, of Laser from one computer to the other computer. It will be common and normal for the two computers to use the same wavelength Laser to implement a full duplex circuit between an identical or complimentary software process or service in each computer.
  • second computer 104 may communicate a stream of data for a given process or service using a different wavelength Laser signal to first computer 101.
  • Second computer 104 can have a second HP -NIC 106 connected to its bus and communicate over a fiber optic link to a third computer 107.
  • First computer 101 may have a second HP -NIC 103 connected to its bus and communicate over a fiber optic link to third computer 107 using links 114 and 115 as shown in FIG. 1.
  • first computer 101 can directly communicate to third computer 107 or can communicate via second computer 104 to third computer 107 in which case second computer 104 acts as a switch, a router or a gateway, depending on protocol layer at which data stream is processed and forwarded by second computer 104.
  • second computer 104 works as a switch, if processing and forwarding is at the network layer, second computer 104 works as a router, and if processing and forwarding works at higher layers of communication protocol, then second computer 104 works as a gateway.
  • This configuration becomes a network of computers and can be expanded by connecting multiple computers using multiplexers, switches, routers and gateways. This expanded embodiment of the invention is shown in FIG. 2
  • the invention includes expanding and extending the concept to a parallel Zero Latency Network Architecture (ZLNA) to route software processes and services in computers.
  • ZLNA Zero Latency Network Architecture
  • a stream transported by a wavelength of Laser is associated with a specific software service, with a software process, or with a complimentary process (the term process is used as a general term and represents entities such as daemons, software tasks, software threads, etc).
  • RPC Remote Procedure Calls
  • RPCs have a dedicated bandwidth or capacity independent of any other kind of traffic load.
  • Similar associations can be made for FTPs, Distributed Database Access (DDA), Java downloads, and many other data streams.
  • DDA Distributed Database Access
  • Java downloads and many other data streams.
  • even a single program thread communication or distributed access to an important object like a medical database can be streamed over a designated wavelength Laser signal.
  • the invention includes, for achieving robustness, that data streams can be assigned dynamically to different wavelength Laser signals to provide failure/recovery, redundancy and extra capacity for computer communications.
  • the invention enables distributed zero latency parallel computing for multi-processing, multi-threading, and multitasking computer platforms such as

Abstract

L'invention concerne une carte d'interface réseau à haute performance (HP-NIC) (102), comprenant une première interface connectée à un premier ordinateur (101), une seconde interface connectée à un second ordinateur (104) par au moins deux liaisons en fibres optiques (110, 111), un logiciel de communications HP-NIC qui transfère les informations entre les premier et second ordinateurs (101, 104). Ce transfert s'effectue par l'envoi et la réception de signaux laser en multiplexage par répartition en longueur d'onde dense par au moins deux liaisons en fibres optiques (110, 111).
PCT/US1999/023059 1998-10-05 1999-10-05 Dispositif, procede et systeme de mise en oeuvre de qualite de reseaux de service a temps d'attente nul utilisant le multiplexage par repartition en longueur d'onde dense WO2000020986A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU64130/99A AU6413099A (en) 1998-10-05 1999-10-05 Device, method, and system for implementing quality of service zero latency networks using dense wavelength division multiplexing
CA002346392A CA2346392A1 (fr) 1998-10-05 1999-10-05 Dispositif, procede et systeme de mise en oeuvre de qualite de reseaux de service a temps d'attente nul utilisant le multiplexage par repartition en longueur d'onde dense
EP99951760A EP1119952A1 (fr) 1998-10-05 1999-10-05 Dispositif, procede et systeme de mise en oeuvre de qualite de reseaux de service a temps d'attente nul utilisant le multiplexage par repartition en longueur d'onde dense

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10299898P 1998-10-05 1998-10-05
US60/102,998 1998-10-05
US41122599A 1999-10-04 1999-10-04
US09/411,225 1999-10-04

Publications (3)

Publication Number Publication Date
WO2000020986A1 true WO2000020986A1 (fr) 2000-04-13
WO2000020986A8 WO2000020986A8 (fr) 2000-07-06
WO2000020986A9 WO2000020986A9 (fr) 2000-08-31

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PCT/US1999/023059 WO2000020986A1 (fr) 1998-10-05 1999-10-05 Dispositif, procede et systeme de mise en oeuvre de qualite de reseaux de service a temps d'attente nul utilisant le multiplexage par repartition en longueur d'onde dense

Country Status (3)

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EP (1) EP1119952A1 (fr)
CA (1) CA2346392A1 (fr)
WO (1) WO2000020986A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309564A (en) * 1992-03-19 1994-05-03 Bradley Graham C Apparatus for networking computers for multimedia applications
US5335105A (en) * 1992-04-10 1994-08-02 Alcatel Network Systems, Inc. High speed communications interface protection system
US5548579A (en) * 1994-06-23 1996-08-20 International Business Machines Corporation System for effective allocation of network-wide bandwidth
US5729607A (en) * 1994-08-12 1998-03-17 Neosoft A.G. Non-linear digital communications system
US5781320A (en) * 1996-08-23 1998-07-14 Lucent Technologies Inc. Fiber access architecture for use in telecommunications networks
US5808767A (en) * 1996-05-30 1998-09-15 Bell Atlantic Network Services, Inc Fiber optic network with wavelength-division-multiplexed transmission to customer premises

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309564A (en) * 1992-03-19 1994-05-03 Bradley Graham C Apparatus for networking computers for multimedia applications
US5335105A (en) * 1992-04-10 1994-08-02 Alcatel Network Systems, Inc. High speed communications interface protection system
US5548579A (en) * 1994-06-23 1996-08-20 International Business Machines Corporation System for effective allocation of network-wide bandwidth
US5729607A (en) * 1994-08-12 1998-03-17 Neosoft A.G. Non-linear digital communications system
US5808767A (en) * 1996-05-30 1998-09-15 Bell Atlantic Network Services, Inc Fiber optic network with wavelength-division-multiplexed transmission to customer premises
US5781320A (en) * 1996-08-23 1998-07-14 Lucent Technologies Inc. Fiber access architecture for use in telecommunications networks

Also Published As

Publication number Publication date
WO2000020986A8 (fr) 2000-07-06
CA2346392A1 (fr) 2000-04-13
EP1119952A1 (fr) 2001-08-01
WO2000020986A9 (fr) 2000-08-31

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