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WO2012038006A1 - Procédé, dispositif et réseau de télécommunication permettant d'analyser des itinéraires de protection sur des chemins de couches inférieures sur un réseau à hiérarchie numérique de synchronisation - Google Patents

Procédé, dispositif et réseau de télécommunication permettant d'analyser des itinéraires de protection sur des chemins de couches inférieures sur un réseau à hiérarchie numérique de synchronisation Download PDF

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Publication number
WO2012038006A1
WO2012038006A1 PCT/EP2011/004018 EP2011004018W WO2012038006A1 WO 2012038006 A1 WO2012038006 A1 WO 2012038006A1 EP 2011004018 W EP2011004018 W EP 2011004018W WO 2012038006 A1 WO2012038006 A1 WO 2012038006A1
Authority
WO
WIPO (PCT)
Prior art keywords
route
sdh
trail
protecting
segments
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2011/004018
Other languages
English (en)
Inventor
Mary Luz Mouronte Lopez
Francisco Javier RAMOS GUTIÉRREZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonica SA
Original Assignee
Telefonica SA
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
Application filed by Telefonica SA filed Critical Telefonica SA
Publication of WO2012038006A1 publication Critical patent/WO2012038006A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0289—Optical multiplex section protection

Definitions

  • SDH defines two path layer networks: lower-order path layer network (LO) and higher-order path layer network (HO) that differ in the information structure (virtual container) used to support connections in the layer network.
  • a lower-order path layer network supports 2 Mbit/s and 34/45 Mbit/s signals in virtual containers VC-12 and VC-3.
  • a higher-order path layer supports lower-order path layer networks and 140 Mbit/s circuit networks.
  • the topology of a layer network is described by subnetworks, links and access groups. In each layer, a subnetwork is defined as a set of access points that transfer characteristic information among them. Each subnetwork can be partitioned in smaller ones.
  • a matrix in network equipment is the smallest subnetwork in SDH networks.
  • FIG 2. Shows the main flowchart of the method for analyzing protecting routes in lower-layer paths over a SDH network, object of the present invention.
  • FIG 3. Shows a schematic view of an example of a circuit route.
  • the total number of unprotected segments generated is determined by the expression (((n-(m+1)*(n-m))/2, where n is the number of equipments included into the working route and m is the number of protected equipments which are not the source and target equipments in the LO trail.
  • server layer protection if there is server layer protection, it chooses the first equipment in the route where no link connection included in server layer protection the collection ends. From that source equipment, it repeats the following operations for all the equipments in the working route:
  • Route includes HO Path B-P and HO Path P-C.
  • Route includes HO Path l-R and HO Path R-K.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention se rapporte à un procédé qui consiste à : analyser une ou plusieurs pistes de couche d'ordre inférieur en considérant ses itinéraires de travail et de protection ; obtenir, de ladite analyse, des segments d'itinéraire de travail protégés et non protégés, lesdits segments non protégés étant définis comme étant ceux qui n'ont pas de protection sur leur itinéraire de protection ou sur les chemins de couches d'ordre supérieur qui supportent l'itinéraire de travail ; protéger, au niveau de ladite couche d'ordre inférieur, lesdits segments d'itinéraire de travail non protégés ; et générer un nouvel itinéraire de protection comprenant les segments d'itinéraire de travail protégés trouvés à partir de ladite analyse et les segments protégés après avoir été considérés comme étant non protégés à partir de ladite analyse. Le dispositif comprend les moyens pour effectuer le procédé. Le réseau de télécommunication comprend le dispositif. L'invention se réfère à un procédé permettant de maximiser les segments protégés dans la couche de chemin d'ordre inférieur dans des réseaux à hiérarchie numérique de synchronisation (SDH, Synchronous Digital Hierarchy), de réduire à un minimum le nombre de ressources réseau nécessaires.
PCT/EP2011/004018 2010-09-24 2011-08-11 Procédé, dispositif et réseau de télécommunication permettant d'analyser des itinéraires de protection sur des chemins de couches inférieures sur un réseau à hiérarchie numérique de synchronisation Ceased WO2012038006A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201001224A ES2385814B1 (es) 2010-09-24 2010-09-24 Método, dispositivo y red de telecomunicación para analizar rutas de protección en trayectos de capa inferior sobre una red de sdh.
ESP201001224 2010-09-24

Publications (1)

Publication Number Publication Date
WO2012038006A1 true WO2012038006A1 (fr) 2012-03-29

Family

ID=44587757

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/004018 Ceased WO2012038006A1 (fr) 2010-09-24 2011-08-11 Procédé, dispositif et réseau de télécommunication permettant d'analyser des itinéraires de protection sur des chemins de couches inférieures sur un réseau à hiérarchie numérique de synchronisation

Country Status (3)

Country Link
AR (1) AR083097A1 (fr)
ES (1) ES2385814B1 (fr)
WO (1) WO2012038006A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114422420A (zh) * 2021-12-29 2022-04-29 中国电信股份有限公司 路由信息处理方法及网络数据管理系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004008685A2 (fr) 2002-01-31 2004-01-22 Nortel Networks Limited Procédé et appareil de signalement de mailles partagées
US6813241B1 (en) 1999-12-18 2004-11-02 Nortel Networks Limited Network architecture and method of providing link protection in a bidirectional data traffic network
EP1499049A1 (fr) * 2003-07-18 2005-01-19 Alcatel Restauration de réseau
WO2007149886A1 (fr) 2006-06-19 2007-12-27 Qualcomm Incorporated Routage de données par l'intermédiaire de couches inférieures dans un système de communication
US20080144510A1 (en) 2006-12-14 2008-06-19 Telefonaktiebolaget Lm Ericsson (Publ) Path management for enhanced protection
US7542414B1 (en) 2003-10-31 2009-06-02 Cisco Technology, Inc. Computing a diverse path while providing optimal usage of line protected links
EP2099172A1 (fr) 2007-03-31 2009-09-09 Huawei Technologies Co., Ltd. Procédé de protection par redondance du flux de diffusion multiple, et dispositif correspondant

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6813241B1 (en) 1999-12-18 2004-11-02 Nortel Networks Limited Network architecture and method of providing link protection in a bidirectional data traffic network
WO2004008685A2 (fr) 2002-01-31 2004-01-22 Nortel Networks Limited Procédé et appareil de signalement de mailles partagées
EP1499049A1 (fr) * 2003-07-18 2005-01-19 Alcatel Restauration de réseau
US7542414B1 (en) 2003-10-31 2009-06-02 Cisco Technology, Inc. Computing a diverse path while providing optimal usage of line protected links
WO2007149886A1 (fr) 2006-06-19 2007-12-27 Qualcomm Incorporated Routage de données par l'intermédiaire de couches inférieures dans un système de communication
US20080144510A1 (en) 2006-12-14 2008-06-19 Telefonaktiebolaget Lm Ericsson (Publ) Path management for enhanced protection
EP2099172A1 (fr) 2007-03-31 2009-09-09 Huawei Technologies Co., Ltd. Procédé de protection par redondance du flux de diffusion multiple, et dispositif correspondant

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
D. TORRIERI, ALGORITHMS FOR FINDING AN OPTIMAL SET OF SHORT DISJOINT PATH IN A COMMUNICATION NETWORK, 1992
D. WALDEN: "Distributed Bellman-Ford", THE BELLMAN-FORD ALGORITHM, 2003
M. NOUR, A. HAFID AND M. GENDREAU, A DYNAMIC ROUTING PROCEDURE FOR CONNECTIONS WITH QUALITY OF SERVICE REQUIREMENTS, 1997
V. V. GEORGIEVSKII AND E. G. DAVYDOV, A METHOD OF CONSTRUCTING INDEPENDENT ROUTES AND SECTIONS OF NETWORK MODELS, 1974

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114422420A (zh) * 2021-12-29 2022-04-29 中国电信股份有限公司 路由信息处理方法及网络数据管理系统

Also Published As

Publication number Publication date
AR083097A1 (es) 2013-01-30
ES2385814B1 (es) 2013-06-12
ES2385814A1 (es) 2012-08-01

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