High-speed mesh connected local area network
Abstract
A mesh connected local area network provides automatic packet switching and routing between host computers coupled to the network. The network has a multiplicity of cut-through, nonblocking switches, each capable of simultaneously routing a multiplicity of data packets. Low host-to-host latency is achieved through the use of cut-through switches with separate internal buffers for each packet being routed. The switches are interconnected with one another and are coupled to the host computers of the network by point to point full duplex links. While each switch can be coupled to ten or more network members, i.e., switches and hosts, each link is coupled to only two network members and is dedicated to carrying signals therebetween. Whenever a new switch or link is added to the network, and whenever a switch or link fails, the switches in the network automatically reconfigure the network by recomputing the set of legal paths through the network.

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1 sheet
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Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0274709A2 | Cites | European Patent Office (EPO) | Y | Search report |
| US4466060A | Cites | United States of America | A | Search report |
| US4701756A | Cites | United States of America | A | Search report |
| IEEE COMMUNICATIONS MAGAZINE, vol. 22, no. 8, August 1984, pages 36-40, US; C. PETITPIERRE: "Meshed local computer networks" | Non-patent | – | – | Search report |
| COMPUTER NETWORKS, vol. 3, 1979, pages 267-286, Amsterdam, NL; P. KERMANI et al.: "Virtual cut-through: A new computer communication switching technique" | Non-patent | – | – | Search report |
| IEEE TRANSACTIONS ON COMPUTERS, vol. C-36, no. 5, May 1987, pages 547-553, New York, US; W.J. DALLY et al.: "Deadlock-free message routing in multiprocessor interconnection networks" | Non-patent | – | – | Search report |
| IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, Tokyo, 15th - 18th November 1987, vol. 2, pages 1410-1414; T. SUDA et al.: "Tree lans with collision avoidance: Protocol and switch architecture" | Non-patent | – | – | Search report |
| COMPUTER COMMUNICATION REVIEW. vol. 18, no. 4, August 1988, NEW YORK US pages 330 - 338 C.CHENG ET AL 'A PROTOCOL TO MAINTAIN A MINIMUM SPANNING TREE IN A DYNAMIC TOPOLOGY' | Non-patent | – | – | Search report |
| IEEE TRANSACTIONS ON SOFTWARE ENGINEERING. vol. 13, no. 3, March 1987, NEW YORK US pages 398 - 405 Y.K.DALAL 'A DISTRIBUTED ALGORITHM FOR CONSTRUCTING MINIMAL SPANNING TREES' | Non-patent | – | – | Search report |
14 members in 6 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 370285 | United States of America | – | |
| 37028589 | United States of America | A | |
| 37028589 | United States of America | A | |
| US19890370285 | – | – | – |
Members14
| Document | Office | Kind | |
|---|---|---|---|
| CA2011593A1 | Canada | A1 | |
| EP0404337A2 | European Patent Office (EPO) | A2 | |
| JPH0332252A | Japan | A | |
| US5088091A | United States of America | A | |
| EP0404337A3This record | European Patent Office (EPO) | A3 | |
| US5260945A | United States of America | A | |
| JP2577269B2 | Japan | B2 | |
| EP0817424A2 | European Patent Office (EPO) | A2 | |
| EP0404337B1 | European Patent Office (EPO) | B1 | |
| AT178175T | Austria | T | |
| ATE178175T1 | Austria | T1 | |
| DE69033016D1 | Germany | D1 | |
| DE69033016T2 | Germany | T2 | |
| EP0817424A3 | European Patent Office (EPO) | A3 |
52 legal events, as 3 offices reported them to INPADOC
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
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| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
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| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)732E | 732E | GB | |
| European patent in force as of 2002-01-01IF02 | IF02 | GB | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)732E | 732E | GB | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents actLapsedNLV1 | NLV1 | EP | |
| Fr: translation filedET | ET | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
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| Corresponds to:REF | REF | EP | |
| European patent takes effect as a national patent in ch/liEP | EP | CH | |
| Designated contracting statesAK | AK | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Corresponds to:REF | REF | EP | |
| Miscellaneous (additional remarks)TEILANMELDUNG 97201068.0 EINGEREICHT AM 10/04/97.XX | XX | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
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| First examination report despatched17Q | 17Q | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
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| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
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| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 0404337
- Publication, DOCDB
- 0404337
- Publication, EPODOC
- EP0404337
- Application
- 305289
- Application, DOCDB
- 90305289
- Application, EPODOC
- EP19900305289
Titles3
- German
- Lokales Maschennetzwerk hoher Geschwindigkeit
- English
- High-speed mesh connected local area network
- French
- Réseau maillé local à grande vitesse
Classification
- CPC, 13
- H04L45/02
- H04L12/28
- H04L45/16
- H04L45/28
- H04L45/48
- H04L49/101
- H04L49/201
- H04L49/25
- H04L49/251
- H04L49/3009
- H04L49/351
- H04L2012/445
- H04L45/00
- IPC, 3
- H04L12 28
- H04L12 44
- H04L12 56
Designated states1
- Contracting states, 1
- Sweden