Non-blocking, scalable optical router architecture and method
Abstract
A system and method for providing non-blocking routing of optical data through a telecommunications router that allows full utilization of available capacity. The router includes a number of data links (20) that carry optical data packets to and from an optical router (50). The optical router (50) includes a number of ingress edge units (60) coupled to an optical switch core (30) coupled further to a number of egress edge units (160). The ingress edge units (60) receive the optical data packets from the data links (20) and aggregate the optical data packets into "super packets" where each super packet is to be routed to a particular destination egress edge unit (160). The super packets are sent from the ingress edge units (60) to an optical switch fabric (70) within the optical switch core (30) that routes each super packet through the optical switch fabric (70) to the super packet's particular destination egress edge unit (160) in a non-blocking manner (i.e., without contention or data loss through the optical switch fabric (70)). This routing is managed by a core controller (40) that monitors flow information at each ingress edge unit (60) to control the super packet generation and transmission to the optical switch fabric (70) and schedules each super packet to exit the optical switch fabric (70) so as to avoid contention among the plurality of super packets in the transmission between the optical switch fabric (70) and the egress edge units (160). The egress edge units (160) receive the super packets, de-aggregate the super packets into the original optical data packets, and transmit the optical data packets to the data lines (20).
Term
No projected expiry on record.
- Priority
- Filed
- Published
- Today
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| WO0042811A1 | Cites | World Intellectual Property Organization (WIPO) | A | International search | 1-73 |
| WO0042811A1 | Cites | World Intellectual Property Organization (WIPO) | A | International search | 1-73 |
| EP0849916A2 | Cites | European Patent Office (EPO) | A | International search | 1-73 |
| EP0849916A2 | Cites | European Patent Office (EPO) | A | International search | 1-73 |
| US5978359A | Cites | United States of America | YA | International search | 58-62 |
| US5978359A | Cites | United States of America | YA | International search | 58-62 |
| WO9530318A2 | Cites | World Intellectual Property Organization (WIPO) | A | International search | 1-73 |
| WO9530318A2 | Cites | World Intellectual Property Organization (WIPO) | A | International search | 1-73 |
| KANNAN R ET AL: "STWNET: A HIGH BANDWIDTH SPACE-TIME-WAVELENGTH MULTIPLEXED OPTICAL SWITCHING NETWORK", PROCEEDINGS OF THE IEEE INFOCOM '97. THE CONFERENCE ON COMPUTER COMMUNICATIONS. 16TH ANNUAL JOINT CONFERENCE OF THE IEEE COMPUTER AND COMMUNICATIONS SOCIETIES. DRIVING THE INFORMATION REVOLUTION. KOBE, APRIL 7 - 12, 1997, LOS ALAMITOS, CA: IEEE COMPU, vol. 2, 7 April 1997 (1997-04-07), pages 777 - 784, XP000859147, ISBN: 0-8186-7782-1 | Non-patent | – | – | International search | – |
| MCKEOWN N ET AL: "TINY TERA: A PACKET SWITCH CORE", IEEE MICRO, IEEE INC. NEW YORK, US, vol. 17, no. 1, 1997, pages 26 - 33, XP000642693, ISSN: 0272-1732 | Non-patent | – | – | International search | – |
14 members in 3 offices; this record represents the family
Priority claims1
| Document | Office | Kind | Date |
|---|---|---|---|
| 69866600 | United States of America | A |
Members14
| Document | Office | Kind | |
|---|---|---|---|
| WO0241663A2 | World Intellectual Property Organization (WIPO) | A2 | |
| AU3977202A | Australia | A | |
| US2003063348A1 | United States of America | A1 | |
| US2003067653A1 | United States of America | A1 | |
| US6665495B1 | United States of America | B1 | |
| WO0241663A3This record | World Intellectual Property Organization (WIPO) | A3 | |
| US2006083460A1 | United States of America | A1 | |
| US2006147208A1 | United States of America | A1 | |
| US2006239288A1 | United States of America | A1 | |
| US7145867B2 | United States of America | B2 | |
| US7184444B2 | United States of America | B2 | |
| US7443790B2 | United States of America | B2 | |
| US7526203B2 | United States of America | B2 | |
| US8116315B2 | United States of America | B2 |
6 legal events, as 3 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Non-entry into the national phaseNENP | NENP | JP | |
| Ep: pct application non-entry in european phase122 | 122 | WO | |
| Procedure relating to pct application: ceased to have effect for deCeased8642 | 8642 | DE | |
| Ep: the epo has been informed by wipo that ep was designated in this application121 | 121 | WO | |
| Designated statesAK | AK | WO | |
| Designated countries for regional patentsAL | AL | WO |
Numbers
- Publication
- 02/41663
- Application
- 151237
Titles2
- English
- NON-BLOCKING, SCALABLE OPTICAL ROUTER ARCHITECTURE AND METHOD
- French
- ARCHITECTURE DE ROUTEUR OPTIQUE SCALAIRE NON BLOQUANTE ET PROCEDE D'ACHEMINEMENT
Classification
- CPC, 26
- H04L45/00
- H04L45/302
- H04L45/62
- H04L47/2433
- H04L47/2441
- H04L47/33
- H04L49/101
- H04L49/1523
- H04L49/205
- H04L49/254
- H04L49/3009
- H04L49/3081
- H04L49/357
- H04L49/503
- H04L2012/5662
- H04Q11/0005
- H04Q11/0062
- H04Q11/0066
- H04Q11/0071
- H04Q2011/0024
- H04Q2011/0033
- H04Q2011/0039
- H04Q2011/005
- H04Q2011/0073
- H04Q2011/0079
- H04Q2011/0084
- IPC, 3
- H04L12 56
- H04L45 00
- H04Q11 00
Designated states4
- Regional, 4
- Zimbabwe
- Turkmenistan
- Türkiye
- Togo