WO2007003932A3 - Packet switched networks - Google Patents
Packet switched networks Download PDFInfo
- Publication number
- WO2007003932A3 WO2007003932A3 PCT/GB2006/002461 GB2006002461W WO2007003932A3 WO 2007003932 A3 WO2007003932 A3 WO 2007003932A3 GB 2006002461 W GB2006002461 W GB 2006002461W WO 2007003932 A3 WO2007003932 A3 WO 2007003932A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- packet
- paths
- disjoint
- path
- packets
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/24—Multipath
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
Abstract
There is disclosed a method of improving dependability in an OPS network in which a plurality of data packets having the same destination are grouped into a packet set. At least one redundant packet is created for each packet set and each data and redundant packet in the packet is transmitted set over a different disjoint path between two nodes in the network. The disjoint paths are those paths in a selected path set, such that in the event of failure of one of the disjoint paths, a data packet which has failed to be received by the second node can be reconstructed using information from the received packets. The total number of packets in each packet set is equal to the total number of different disjoint paths in the path set and the paths in the path set are selected as being all the paths which have a lower cost than the combined cost of a pre-determined number, preferably two, of the lowest cost paths.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0513586.8 | 2005-07-01 | ||
GB0513586A GB0513586D0 (en) | 2005-07-01 | 2005-07-01 | Optical packet switched networks |
US71097705P | 2005-08-24 | 2005-08-24 | |
US60/710,977 | 2005-08-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2007003932A2 WO2007003932A2 (en) | 2007-01-11 |
WO2007003932A3 true WO2007003932A3 (en) | 2007-09-20 |
WO2007003932A8 WO2007003932A8 (en) | 2007-11-29 |
Family
ID=37309361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2006/002461 WO2007003932A2 (en) | 2005-07-01 | 2006-07-03 | Packet switched networks |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2007003932A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2460434A (en) * | 2008-05-30 | 2009-12-02 | Roke Manor Research | Encoding data with parity information and transmitting it over at least three paths to enable data reconstruction in the event of a path failure |
IT201900022458A1 (en) * | 2019-11-29 | 2021-05-29 | Telecom Italia Spa | Measurement of round-trip packet loss in a packet-switched communications network |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020116715A1 (en) * | 2001-02-16 | 2002-08-22 | Apostolopoulos John G. | Video communication method and system employing multiple state encoding and path diversity |
WO2005004363A1 (en) * | 2003-07-04 | 2005-01-13 | Telenor Asa | Use of polarization for differentiation of information |
-
2006
- 2006-07-03 WO PCT/GB2006/002461 patent/WO2007003932A2/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020116715A1 (en) * | 2001-02-16 | 2002-08-22 | Apostolopoulos John G. | Video communication method and system employing multiple state encoding and path diversity |
WO2005004363A1 (en) * | 2003-07-04 | 2005-01-13 | Telenor Asa | Use of polarization for differentiation of information |
Non-Patent Citations (1)
Title |
---|
H. OVERBY: "Network layer packet redundancy in optical packet switched networks", vol. 12, no. 20, 4 October 2004 (2004-10-04), pages 4881 - 4895, XP002407600, Retrieved from the Internet <URL:http://www.opticsexpress.org/DirectPDFAccess/E1A89DDF-BDB9-137E-C610E7E42124962E_81316.pdf?da=1&id=81316&seq=0&CFID=25970767&CFTOKEN=45506753> [retrieved on 20061113] * |
Also Published As
Publication number | Publication date |
---|---|
WO2007003932A8 (en) | 2007-11-29 |
WO2007003932A2 (en) | 2007-01-11 |
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