WO2007003932A8 - Packet switched networks - Google Patents

Packet switched networks

Info

Publication number
WO2007003932A8
WO2007003932A8 PCT/GB2006/002461 GB2006002461W WO2007003932A8 WO 2007003932 A8 WO2007003932 A8 WO 2007003932A8 GB 2006002461 W GB2006002461 W GB 2006002461W WO 2007003932 A8 WO2007003932 A8 WO 2007003932A8
Authority
WO
WIPO (PCT)
Prior art keywords
packet
paths
disjoint
path
packets
Prior art date
Application number
PCT/GB2006/002461
Other languages
French (fr)
Other versions
WO2007003932A3 (en
WO2007003932A2 (en
Inventor
Harald Oeverby
Original Assignee
Ntnu Technology Transfer As
Jackson Robert
Harald Oeverby
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
Priority claimed from GB0513586A external-priority patent/GB0513586D0/en
Application filed by Ntnu Technology Transfer As, Jackson Robert, Harald Oeverby filed Critical Ntnu Technology Transfer As
Publication of WO2007003932A2 publication Critical patent/WO2007003932A2/en
Publication of WO2007003932A3 publication Critical patent/WO2007003932A3/en
Publication of WO2007003932A8 publication Critical patent/WO2007003932A8/en

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.
PCT/GB2006/002461 2005-07-01 2006-07-03 Packet switched networks WO2007003932A2 (en)

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 WO2007003932A3 (en) 2007-09-20
WO2007003932A8 true 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)

* Cited by examiner, † Cited by third party
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7103669B2 (en) * 2001-02-16 2006-09-05 Hewlett-Packard Development Company, L.P. Video communication method and system employing multiple state encoding and path diversity
NO320962B1 (en) * 2003-07-04 2006-02-20 Telenor Asa Use of polarization to distinguish different types of information

Also Published As

Publication number Publication date
WO2007003932A3 (en) 2007-09-20
WO2007003932A2 (en) 2007-01-11

Similar Documents

Publication Publication Date Title
CN103460647B (en) For operating the technology of network node
Guo et al. Controller placement for improving resilience of software-defined networks
US8264949B2 (en) Method and apparatus for selecting between available neighbors in a rapid alternate path calculation
WO2007033179A3 (en) Fault-tolerant communications in routed networks
CN101515885B (en) Method and system for assigning a plurality of MAC to a plurality of processors
CN104168193B (en) A kind of method and routing device of Virtual Router Redundancy Protocol fault detect
WO2009064146A3 (en) Failure recovery method in non revertive mode of ethernet ring network
CN104040974B (en) Apparatus and method for spare capacity allocation on dual link failureS
CN105933228A (en) Traffic engineering for bit indexed explicit replication
GB2426609A (en) Failover and load balancing
WO2007143714A3 (en) Method, system, and computer-readable medium for resource-based route selection
KR20100108545A (en) Method and system for looping back traffic in qiq ethernet rings and 1:1 protected pbt trunks
WO2008085375A3 (en) Method and apparatus for multicast routing
WO2007126616A3 (en) Method and apparatus for improved routing in connectionless networks
WO2008132203A8 (en) Recovering from a failure in a communications network
Asadujjaman et al. Fast control channel recovery for resilient in-band OpenFlow networks
CN101330411A (en) Method and system for simulating large-scale network topological
WO2007003932A3 (en) Packet switched networks
CN103259720A (en) Method and device for transmitting data based on MTR
WO2016090815A1 (en) Switching control method and device in deploying high-capacity service
CN102143076B (en) Multi-protection stacking protection group realization method and device
Ramamurthy et al. Cost and reliability considerations in designing the next-generation IP over WDM backbone networks
WO2006084204A3 (en) Redundant ethernet packet network management
Qiu et al. Reliability and availability assessment of storage area network extension solutions
Xu et al. Selecting shorter alternate paths for tunnel-based IP Fast ReRoute in linear time

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06764887

Country of ref document: EP

Kind code of ref document: A2