JPH09507731A - コンピュータ通信ネットワーク - Google Patents
コンピュータ通信ネットワークInfo
- Publication number
- JPH09507731A JPH09507731A JP7519271A JP51927195A JPH09507731A JP H09507731 A JPH09507731 A JP H09507731A JP 7519271 A JP7519271 A JP 7519271A JP 51927195 A JP51927195 A JP 51927195A JP H09507731 A JPH09507731 A JP H09507731A
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Classifications
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
- H04L12/4608—LAN interconnection over ATM networks
-
- 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
- H04L49/309—Header conversion, routing tables or routing tags
-
- 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
- H04L2012/5614—User Network Interface
- H04L2012/5615—Network termination, e.g. NT1, NT2, PBX
-
- 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
- H04L2012/5614—User Network Interface
- H04L2012/5618—Bridges, gateways [GW] or interworking units [IWU]
-
- 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
- H04L2012/5625—Operations, administration and maintenance [OAM]
-
- 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
- H04L12/54—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
- H04L2012/5653—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL]
- H04L2012/5658—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL] using the AAL5
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
- Computer And Data Communications (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. ATMセルを伝送するための複数の相互接続ATMスイッチのネットワー クと、単数又は複数のローカル・エリア・ネットワーク(LAN)への接続用の LANインターフェース・アダプタを有する複数のユーザ側装置とを有するコン ピュータ通信ネットワークであって、前記複数のATMスイッチの少なくともい くつかが、インターフェース手段によって前記LANインターフェース・アダプ タに接続され、前記インターフェース手段が、前記ATMセルを前記LANによ る伝送用に適合させ、これによって、前記ユーザ側装置が、前記LANインター フェース・アダプタを介して透過的に前記ネットワークと通信可能に構成されて いるネットワーク。 2. 請求項1のコンピータ通信ネットワークであって、前記インターフェース 手段は、前記ATMセルを、前記ユーザ側装置へ直接に伝送するべく、前記LA Nフレーム中にてカプセル化する手段である。 3. 請求項2のコンピュータ通信ネットワークであって、前記LANインター フェース・アダプタは、イーサネット・アダプタであって、前記カプセル化手段 は、前記ATMセルを、前記イーサネット・アダプタに伝 送するべく、イーサネット・フレーム中にてカプセル化する。 4. 請求項1のコンピュータ通信ネットワークであって、前記インターフェー ス手段は、前記全ユーザ側装置間の透過通信を許容するため、ブリッジング、ネ ットワーク層転送及びLANエミュレーション機能を提供する。 5. 請求項1のコンピュータ通信ネットワークであって、該ネットワークは、 更に、前記ATMスイッチの少なくとも一つに接続されたネットワーク・マネー ジャを有し、このネットワーク・マネージャは、そのオペレータが前記ネットワ ークを環境設定することを許容する。 6. 請求項1のコンピュータ通信ネットワークであって、該ネットワークは、 更に、前記ATMネットワーク・スイッチの一つに接続されたルート・サーバ手 段を有し、このルート・サーバ手段は、前記ATMネットワークを含む仮想LA Nを形成する管理情報を有している。 7. 請求項1のコンピュータ通信ネットワークであって、更に、前記インター フェース手段の遠隔モニタを許容するためのモニタ手段を有し、該遠隔モニタ手 段 が、被モニタ・ポートから遠隔モニタ・ポートへの、エラーを含むデータを、前 記遠隔モニタ・ポートにおける前記被モニタ・ポートからのデータを複製するデ ータを伝送し、これによって、前記被モニタ・ポートにおいてあたかも現場にお けるようなテストを行うことを可能に構成されている。 8. 請求項4のコンピュータ通信ネットワークであって、更に、受け取ったモ ニタ・パケットにタグを付けて、これらのパケットが、前記受信インターフェー ス手段によって正常に受け取られたパケットとして扱われることを防止する手段 を有している。 9. 請求項1のコンピュータ通信ネットワークであって、更に、前記インター フェース手段と前記ユーザ側装置との間でトークンを交換する手段を有し、これ によって、このトークンが前記インターフェース手段に戻される前に、該トーク ンを受け取った装置によって一定量のデータが送られ、その後、この装置が、前 記トークンをパスする前に、一定量のデータを送り出す。 10.ATMコンピュータ通信ネットワークを、複数のローカル・エリア・ネッ トワーク(LAN)アダプタとインターフェースさせるための装置であって、そ れぞれのローカル・エリア・ネットワーク・アダプタへ の接続用の複数のポートと、これらのポートの内の一つにおいて入力LANフレ ームを受け取るための手段と、出力ATMセルを作るためのATMセグメント化 手段と、前記ATMネットワークから入力ATMセルを受け取るための手段と、 入力ATMセルからLANフレームを再アセンブルするためのリアセンブル手段 と、出力LANフレームを選択された前記ポートに伝送するためのフレーム・キ ューイング伝送手段とを有している。 11.請求項10の装置であって、更に、前記LAN受取手段からのローカルL ANトラフィックを、前記LANフレーム・キューイング伝送手段に向けるため のバイパス手段を有し、これによって前記装置はブリッジとして機能可能に構成 されている。 12.請求項11の装置であって、更に、前記ポートにおいて入力及び出力LA Nフレームをバッファするためのバッファ手段を有し、このバッファ手段が、入 力LANフレーム中のMACヘッダを読み取るための手段を有している。 13.請求項11の装置であって、前記バッファ手段は前記ATMセグメント化 手段に対してn−ビット幅のバスでデータを出力し、前記装置は、更に、前記バ ッ ファ手段と前記ATMセグメント化手段との間のDMAパケット伝送を確実にす るためのトランスレーション・エンジンを有している。 14.請求項13の装置であって、前記トランスレーション・エンジンは、入力 LANパケットを廃棄、ブリッジング又はネットワーク層転送するための手段と 、前記パケットをATM層適合用にカプセル化するための手段と、仮想チャンネ ルをインサートするための手段とを有する。 15.請求項14の装置であって、前記トランスレーションは、RISCプロセ ッサである。 16.請求項15の装置であって、前記セグメント化手段は、ATM化装置と、 その主要バス上のセグメント化RAMと、第2バス上の高速ポインタ・メモリと 、前記リアセンブリ手段へのデュアル・ポート・メモリとを有している。 17.請求項10の装置であって、更に、前記ローカル・エリア・ネットワーク へトークンをパスする手段を有し、前記トークンは、受取ホストからのデータの 伝送を認可する。 18.請求項10の装置であって、ポート・アベイラビリティがハードウェア信 号から導かれるビット・マス クとして提供され、データ・アベイラビリティがパケット・アドレス中のビット ・マスクとして表される。 19.請求項16の装置であって、更に、現在のキューがサービス不能である時 に、次に高いプライオリティを有するポートを戻すためのラウンド・ロビン式プ ライオリティを備えたプライオリティ・エンコーダを有している。 20.請求項10の装置であって、更に、パケット長を検出する手段と、セグメ ント化されるデータパケットを保管するセグメンタRAMと、セグメンタと、前 記セグメンタRAM中においてデータ・パケットのDMAアクセスを許容するパ スと、DMAアクセス中において最後のバイトが読み出された後、前記データ・ バス上のデータを変えるための手段とを有する。 21.コンピュータ通信ネットワークであって、複数の相互接続されたATMス イッチと、ネットワーク・マネジャと、前記ATMスイッチの内の少なくとも一 つに接続されたルート・サーバと、LANインターフェース・アダプタを備えた 複数の装置と、前記LANインターフェース・アダプタの前記複数のATMスイ ッチとの通信を許可する手段、とを有している。 22.請求項21のコンビュータ通信ネットワークであ って、前記許可手段は、前記ATMセルを、前記複数の装置のいくつかの前記L ANインターフェース・アダプタへと直接に伝送するべく、LANフレームにカ プセル化するための手段と、LANフレームを前記複数の装置の内のその他の装 置の前記LANインターフェース・アダプタにLANフレームを転送するための ブリッジング、ネットワーク層転送及びLANエミュレーション機能を提供する ための手段、とを有している。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9401092.3 | 1994-01-21 | ||
| GB9401092A GB9401092D0 (en) | 1994-01-21 | 1994-01-21 | A network management system |
| PCT/CA1995/000029 WO1995020282A1 (en) | 1994-01-21 | 1995-01-20 | TRANSPARENT INTERCONNECTOR OF LANs BY AN ATM NETWORK |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09507731A true JPH09507731A (ja) | 1997-08-05 |
| JP3612626B2 JP3612626B2 (ja) | 2005-01-19 |
Family
ID=10749091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51927195A Expired - Fee Related JP3612626B2 (ja) | 1994-01-21 | 1995-01-20 | コンピュータ通信ネットワーク |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US5818842A (ja) |
| EP (2) | EP0923210B1 (ja) |
| JP (1) | JP3612626B2 (ja) |
| AU (1) | AU687148B2 (ja) |
| CA (1) | CA2181535A1 (ja) |
| DE (2) | DE69535135T2 (ja) |
| GB (1) | GB9401092D0 (ja) |
| WO (1) | WO1995020282A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7978727B2 (en) | 2002-12-12 | 2011-07-12 | Fujitsu Limited | Ethernet frame and synchronous optical network (SONET) frame convertible interface device and frame transmission method |
Families Citing this family (302)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7327688B2 (en) * | 1994-01-21 | 2008-02-05 | Alcatel Canada Inc. | Digital communications system |
| US5659684A (en) * | 1995-02-03 | 1997-08-19 | Isdn Systems Corporation | Methods and apparatus for interconnecting personal computers (PCs) and local area networks (LANs) using packet protocols transmitted over a digital data service (DDS) |
| JP3515263B2 (ja) * | 1995-05-18 | 2004-04-05 | 株式会社東芝 | ルータ装置、データ通信ネットワークシステム、ノード装置、データ転送方法及びネットワーク接続方法 |
| WO1997002718A1 (de) * | 1995-07-05 | 1997-01-23 | Siemens Aktiengesellschaft | Verfahren zum übermitteln von informationspaketen zwischen emulierten lans |
| US6445708B1 (en) * | 1995-10-03 | 2002-09-03 | Ahead Communications Systems, Inc. | ATM switch with VC priority buffers |
| US5684800A (en) * | 1995-11-15 | 1997-11-04 | Cabletron Systems, Inc. | Method for establishing restricted broadcast groups in a switched network |
| JPH09238148A (ja) * | 1996-02-29 | 1997-09-09 | Oki Electric Ind Co Ltd | 加入者系システム |
| US6075776A (en) * | 1996-06-07 | 2000-06-13 | Nippon Telegraph And Telephone Corporation | VLAN control system and method |
| US6064650A (en) * | 1996-06-27 | 2000-05-16 | Xerox Corporation | Rate shaping in per-flow output queued routing mechanisms having output links servicing multiple physical layers |
| US5983332A (en) * | 1996-07-01 | 1999-11-09 | Sun Microsystems, Inc. | Asynchronous transfer mode (ATM) segmentation and reassembly unit virtual address translation unit architecture |
| JP3194868B2 (ja) | 1996-07-10 | 2001-08-06 | 三菱電機株式会社 | パケット転送装置 |
| US6101542A (en) * | 1996-07-19 | 2000-08-08 | Hitachi, Ltd. | Service management method and connection oriented network system using such management method |
| US5812857A (en) * | 1996-08-28 | 1998-09-22 | Extended Systems, Inc. | Field configurable embedded computer system |
| US6128278A (en) * | 1996-08-30 | 2000-10-03 | Mmc Networks, Inc. | Cell queuing in ATM switches |
| US5901147A (en) * | 1996-08-30 | 1999-05-04 | Mmc Networks, Inc. | Apparatus and methods to change thresholds to control congestion in ATM switches |
| US6662205B1 (en) * | 1996-10-01 | 2003-12-09 | International Business Machines Corporation | Scaleable and extensible system management architecture with dataless endpoints |
| US6229822B1 (en) * | 1996-10-24 | 2001-05-08 | Newbridge Networks Corporation | Communications system for receiving and transmitting data cells |
| US6058419A (en) * | 1996-10-30 | 2000-05-02 | Nec Corporation | Communication network control system and control method therefor |
| US6044080A (en) * | 1996-11-19 | 2000-03-28 | Pluris, Inc. | Scalable parallel packet router |
| US6185223B1 (en) * | 1996-12-04 | 2001-02-06 | Conexant Systems, Inc. | Apparatus and method for providing fire wall protection for systems in communication with an a synchronous transfer mode system |
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- 1995-01-20 EP EP95905513A patent/EP0740874B1/en not_active Expired - Lifetime
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- 1995-01-20 US US08/676,256 patent/US5818842A/en not_active Expired - Fee Related
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| GB9401092D0 (en) | 1994-03-16 |
| US5818842A (en) | 1998-10-06 |
| US6650646B1 (en) | 2003-11-18 |
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| EP0923210B1 (en) | 2006-07-26 |
| DE69535135D1 (de) | 2006-09-07 |
| JP3612626B2 (ja) | 2005-01-19 |
| DE69511679D1 (de) | 1999-09-30 |
| WO1995020282A1 (en) | 1995-07-27 |
| EP0923210A2 (en) | 1999-06-16 |
| CA2181535A1 (en) | 1995-07-27 |
| DE69511679T2 (de) | 2000-04-06 |
| EP0740874A1 (en) | 1996-11-06 |
| EP0740874B1 (en) | 1999-08-25 |
| DE69535135T2 (de) | 2007-01-18 |
| AU687148B2 (en) | 1998-02-19 |
| EP0923210A3 (en) | 1999-08-04 |
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