WO2014048128A1 - Procédé de protection de service point à multipoint pour réseau en anneau et nœud d'anneau supérieur sur réseau en anneau - Google Patents

Procédé de protection de service point à multipoint pour réseau en anneau et nœud d'anneau supérieur sur réseau en anneau Download PDF

Info

Publication number
WO2014048128A1
WO2014048128A1 PCT/CN2013/076365 CN2013076365W WO2014048128A1 WO 2014048128 A1 WO2014048128 A1 WO 2014048128A1 CN 2013076365 W CN2013076365 W CN 2013076365W WO 2014048128 A1 WO2014048128 A1 WO 2014048128A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring node
node
link
point
upper ring
Prior art date
Application number
PCT/CN2013/076365
Other languages
English (en)
Chinese (zh)
Inventor
孙光辉
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2014048128A1 publication Critical patent/WO2014048128A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration

Definitions

  • the present invention relates to the field of communications, and in particular, to a point-to-multipoint service protection method in a ring network and an upper ring node in a ring network. Background technique
  • Node B is the source node of a service in a point-to-multipoint service.
  • the source node needs to send the point-to-multipoint service to nodes D, £ and ? .
  • the point-to-multipoint service arrives at the D node from the node B, and then switches to the opposite direction, and then passes through the node C, B, A, and F arrive at node E, and node E re-sends to node F, and completes the transmission of point-to-multipoint service to nodes D, E, and F.
  • the working link of the point-to-multipoint service is B-C-D-E-F; when there is a fault between the nodes D and E, the protection link of the point-to-multipoint service is D-C-B-A-F-E-F.
  • the protection link also grows. When a failure occurs, the time taken to switch to the protection link transmission service is too long, and two-way transmission may occur on a certain path. , wasting the bandwidth of the segment path.
  • Embodiments of the present invention provide a point-to-multipoint service protection method in a ring network and an upper ring node in a ring network, which can reduce the time required to transmit a service through a protection link in the event of a failure.
  • an embodiment of the present invention provides a method for protecting a point-to-multipoint service in a ring network, where the method includes:
  • the upper ring node of the point-to-multipoint service establishes a working link and a protection link with the upper ring node as a starting node on the ring network, where the point-to-multipoint service is in the lower part of the ring network.
  • the point includes at least a first lower ring node and a second lower ring node, where the direction of the working link is opposite to the direction of the protection link; when a failure occurs in the ring network, the upper ring node determines the Whether the working link passes the fault point;
  • the first lower ring node is located downstream of the upper ring node and upstream of the fault point, and the upper ring node passes
  • the working link transmits the point-to-multipoint service to at least the first lower ring node; if the working link passes through a fault point, and in a direction of the working link, the second The ring node is located downstream of the fault point and upstream of the upper ring node, and the upper ring node transmits the point-to-multipoint service to at least the second lower ring node through the protection link.
  • the method for the upper ring node of the point-to-multipoint service to establish a working link with the upper ring node as a starting node on the ring network includes:
  • the upper ring node acquires configuration information of the working link, where the configuration information of the working link includes at least the upper ring node information, the lower ring node information, and the upper ring node to the lower ring node in the working link direction.
  • the node information to be passed; the upper ring node determines the last lower ring node in the direction of the working link according to the configuration information of the working link;
  • the upper ring node configures a forwarding label for other nodes on the working link except the last lower ring node.
  • the upper ring node of the point-to-multipoint service establishes protection on the ring network with the upper ring node as a starting node.
  • the method of the link includes: the upper ring node acquires configuration information of the protection link, and the configuration information of the protection link.
  • the information includes at least upper ring node information, lower ring node information, and node information to be passed from the upper ring node to the lower ring node in the direction of the protection link; the upper ring node determines, according to the configuration information of the protection link, Protecting the last lower ring node in the direction of the link;
  • the upper ring node configures a forwarding label for other nodes on the protection link except the last lower ring node.
  • an embodiment of the present invention provides an upper ring node in a ring network, including: a link establishing module, configured to establish, on a ring network, a working link and a protection chain with the upper ring node as a starting node And the point-to-multipoint service includes at least a first lower ring node and a second lower ring node in a lower ring node of the ring network, where a direction of the working link is opposite to a direction of the protection link ;
  • the link establishing module includes:
  • a first acquiring module configured to acquire configuration information of the working link, where configuration information of the working link includes at least upper ring node information, lower ring node information, and an upper ring node in a direction of the working link
  • the first determining module is configured to determine the last lower ring node in the working link direction according to the configuration information of the working link; the first configuration module is configured to The other nodes on the working link except the last lower ring node are configured with forwarding labels.
  • the link establishing module includes:
  • a second acquiring module configured to acquire configuration information of the protection link, where the configuration information of the protection link includes at least upper ring node information, lower ring node information, and an upper ring node in a direction of the protection link The node information to be passed to the lower ring node;
  • a second determining module configured to determine, according to configuration information of the protection link, a last lower ring node in a direction of the protection link; a second configuration module, configured to use the last link on the protection link A node other than the lower ring node configures the forwarding label.
  • the protection method of the point-to-multipoint service in the ring network provided by the embodiment of the present invention and the upper ring node in the ring network determine whether the working link passes the fault point, and then the upper ring node can bypass the fault point and select the working chain.
  • Road and/or protection links transmit point-to-multipoint services. Compared with the prior art, the time required for switching to the protection link transmission service when the working link fails, and the bidirectional transmission on the same path are avoided, thereby saving bandwidth resources.
  • FIG. 1 is a schematic structural diagram of a working link of a ring network in the prior art
  • FIG. 2 is a schematic diagram of a prior art switching service path
  • FIG. 3 is a flow chart 1 of a method for protecting a point-to-multipoint service in a ring network according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram 1 of a ring network according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a ring network structure according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a method for establishing a working link by an upper ring node according to an embodiment of the present invention
  • FIG. 7 is a schematic flowchart of a method for establishing a protection link by an upper ring node according to an embodiment of the present invention
  • FIG. 8 is a schematic structural diagram 1 of an upper ring node in a ring network according to an embodiment of the present invention
  • FIG. 9 is a schematic structural diagram 2 of an upper ring node in a ring network according to an embodiment of the present invention
  • FIG. 11 is a schematic structural diagram of an upper ring node in a ring network according to an embodiment of the present invention.
  • the embodiment of the invention provides a protection method for a point-to-multipoint service in a ring network, as shown in FIG. 3, which includes:
  • the upper ring node of the point-to-multipoint service establishes the working link and the protection link of the ring node as the starting node respectively on the ring network, where the point-to-multipoint service includes at least the first ring node of the ring network.
  • the lower ring node and the second lower ring node have opposite directions of the working link and the direction of the protection link.
  • the upper ring node can obtain configuration information from the network management or exchange according to multi-protocol labels.
  • MPLS Multi-Protocol Label Switching
  • the ring network includes nodes A, B, C, D, E, and F
  • the node B is the point-to-multipoint service in the ring node of the ring network
  • nodes D and E is the point-to-multipoint service at the lower ring node of the ring network.
  • the working link established by Node B on the ring network with Node B as the starting node is shown by the solid line with arrows in Figure 4 (BCDEF) and the established protection link with Node B as the starting node is shown in Figure 4.
  • the dotted line with the arrow is shown (BAFED).
  • the direction of the working link in Figure 4 is clockwise, and the direction of the protection link is counterclockwise.
  • the upper ring node determines whether the working link passes the fault point.
  • each node in the ring network can utilize operation management and maintenance ( Operation The Administration and Maintenance (OAM) mechanism detects whether an adjacent link or node is faulty. When it is determined that an adjacent link or node is faulty, the node adjacent to the fault point can broadcast the fault information in the ring network.
  • OAM Operation The Administration and Maintenance
  • the fault point is located between node D and node E.
  • Both node D and node E use the OAM mechanism to detect that a neighboring link has failed. Therefore, node D and node E broadcast the fault information in the ring network.
  • the fault information broadcast by the node D indicates that a fault occurs downstream of the node D in the clockwise direction
  • the fault information broadcast by the node E indicates that the fault occurs upstream of the node E in the clockwise direction. Therefore, other nodes on the ring network can know that the node is in the node.
  • the link between D and node E has failed.
  • the two nodes adjacent to the faulty node also broadcast fault information in the ring network.
  • the upper ring node can determine the specific location of the fault point according to the obtained fault information, and further determine whether the working link passes the fault point.
  • the first lower ring node is located downstream of the upper ring node and upstream of the fault point, and the upper ring node uses the working link to connect the point-to-multipoint service.
  • the second lower ring node is located downstream of the fault point and upstream of the upper ring node, and the upper ring node passes the protection link
  • the point-to-multipoint service is transmitted to at least the second lower ring node.
  • the working link passes through the fault point.
  • the lower-loop nodes of the point-to-multipoint service in the ring network are nodes D, E, and F, wherein, in the clockwise direction, the lower ring node D is located downstream of the upper ring node B and upstream of the fault point, and therefore,
  • the ring node B transmits the point-to-multipoint service to the lower ring node D through the working link; the lower ring nodes E and F are located downstream of the fault point and upstream of the upper ring node B, therefore, the upper ring node B passes the protection link
  • the point-to-multipoint service is transmitted to the lower ring nodes E and F.
  • the upper ring node can transmit the point-to-multipoint service to all lower ring nodes through the protection link.
  • the number of the second lower ring nodes it means In the direction of the working link, all the lower ring nodes are located downstream of the upper ring node and upstream of the fault point. Therefore, the upper ring node can transmit the point-to-multipoint service to all under the working link. Ring node.
  • the working link that the upper ring node uses the upper ring node as a starting node on the ring network may include:
  • the upper ring node obtains configuration information of the working link, where the configuration information of the working link includes at least the information of the upper ring node, the information of the lower ring node, and the path from the upper ring node to the lower ring node in the working link direction. Node information.
  • the upper ring node obtains the configuration information of the working link from the network management, or obtains the configuration information of the working link according to the MPLS protocol.
  • the network management device in this embodiment may be a network device consisting of a network management software platform supporting the network management protocol, a network management supporting software, a network management working platform, and a supporting network management protocol, and capable of providing network system configuration, fault, performance, and network user distribution.
  • Basic management a network management software platform supporting the network management protocol, a network management supporting software, a network management working platform, and a supporting network management protocol, and capable of providing network system configuration, fault, performance, and network user distribution.
  • the upper ring node determines the last lower ring node in the working link direction according to the configuration information of the working link.
  • the upper ring node configures a forwarding label for other nodes except the last lower ring node on the working link.
  • the upper ring node B obtains the configuration information of the working link, and the configuration information includes at least the address of the upper ring node B, the addresses of the lower ring nodes D, E, and F, and the working link direction from the upper ring node B to the lower ring node D. , E, F, the address of the node C to pass; the upper ring node B determines, according to the configuration information, that the lower ring node F is the last lower ring node in the working link direction; the upper ring node B is the last one on the working link.
  • the node outside the ring node F is configured to forward the forwarding label of the point-to-multipoint service, that is, the upper ring node B configures a forwarding label for the node C, the lower ring node D, and the lower ring node E, and the node C and the lower ring node D.
  • the lower ring node E forwards the point-to-multipoint service according to the forwarding label configured by itself.
  • Node c replaces the ring label with its own configured forwarding label, and then sends the point-to-multipoint service to the lower ring node D;
  • the lower ring node D copies the point-to-multipoint service into two parts, and the lower ring node D performs one of the following processes: stripping the forwarding label, and then the point-to-multipoint service leaves the ring network from the lower ring node D;
  • the lower ring node D performs the following processing on the other part: replacing the forwarding label of the node C with the forwarding label configured by itself, and then sending the point-to-multipoint service to the lower ring node E;
  • the processing of the point-to-multipoint service of the lower ring node E is the same as that of the lower ring node D, one is stripped after the label is removed, and the other is replaced by the forwarding label and sent to the lower ring node F;
  • the lower ring node F strips the forwarding label, and then the point-to-multipoint service leaves the ring network from the lower ring node F.
  • the upper ring node establishes a protection link on the ring network, where the upper ring node is a starting node, and may include:
  • the upper ring node obtains configuration information of the protection link, where the configuration information of the protection link includes at least information of the upper ring node, the information of the lower ring node, and a node that passes through the upper ring node to the lower ring node in the direction of the protection link. information.
  • the upper ring node obtains the configuration information of the protection link from the network management, or obtains the configuration information of the protection link according to the MPLS protocol.
  • the upper ring node determines the last lower ring node in the protection link direction according to the configuration information of the protection link.
  • the upper ring node configures a forwarding label for the other nodes except the last lower ring node on the protection link.
  • the upper ring node B obtains configuration information of the protection link, and the configuration information includes at least the address of the upper ring node B, the addresses of the lower ring nodes F, E, and D, and the protection link direction from the upper ring node B to the lower ring node F.
  • the address of the node A to be passed by E, D, and the upper ring node B determines that the lower ring node D is the last lower ring node in the direction of the protection link according to the configuration information;
  • the upper ring node B configures a forwarding label for forwarding the point-to-multipoint service for each node except the last lower ring node D on the protection link, that is, the upper ring node B is node A, lower ring node F, and lower
  • the ring node E configures the forwarding label, node A, and lower ring node? After receiving the point-to-multipoint service, the lower ring node E forwards the point-to-multipoint service according to the forwarding label configured by itself.
  • the lower ring node F copies the point-to-multipoint service into two parts, and the lower ring node F processes one of the following: strips the forwarding label, and then the point-to-multipoint service leaves the ring network from the lower ring node F;
  • the lower ring node F performs the following processing on the other part: replacing the forwarding label of the node A with the forwarding label configured by itself, and then sending the point-to-multipoint service to the lower ring node E;
  • the processing of the point-to-multipoint service of the lower ring node E is the same as that of the lower ring node F, one stripping the label and then the lower ring, and the other replacing the forwarding label and sending it to the lower ring node D;
  • the lower ring node D After receiving the point-to-multipoint service, the lower ring node D strips the forwarding label, and then the point-to-multipoint service leaves the ring network from the lower ring node D. It should be noted that there is no chronological limitation between establishing a working link and establishing a protection link.
  • the method provided by the embodiment of the present invention determines whether the working link passes the fault point, and further, the upper ring node can bypass the fault point and select the working link and/or the protection link to transmit the point-to-multipoint service. Compared with the prior art, the time required to switch to the protection link transmission service when the working link fails, the time of the bidirectional transmission on the same path is avoided, and the bandwidth resource is saved.
  • An embodiment of the present invention provides an upper ring node in a ring network.
  • the method includes: a link establishing module 10, configured to establish, on a ring network, a working link that uses the upper ring node as a starting node. And a protection link, where the point-to-multipoint service includes at least a first lower ring node and a second lower ring node in a lower ring node of the ring network, a direction of the working link and the protection link The opposite direction;
  • the determining module 11 is configured to determine whether the working link passes the fault point when a fault occurs in the ring network.
  • the service transmission module 12 if the working link passes the fault point, and in the direction of the working link, the first lower ring node is located downstream of the upper ring node and upstream of the fault point, Transmitting the point-to-multipoint service to at least the first lower ring node through the working link; if the working link passes a fault point, and in a direction of the working link, the The second lower ring node is located downstream of the fault point and upstream of the upper ring node, and is configured to transmit the point-to-multipoint service to at least the second lower ring node by using the protection link.
  • the link establishing module 10 includes: a first acquiring module 100, configured to acquire configuration information of the working link, where configuration information of the working link includes at least an upper ring node Information, lower ring node information, and node information to pass through from the upper ring node to the lower ring node in the working link direction; the first determining module 101 is configured to determine, according to the configuration information of the working link The last lower ring node in the direction of the working link; the first configuration module 102 is configured to configure a forwarding label for other nodes on the working link except the last lower ring node.
  • the link establishing module 10 includes: a second obtaining module 103, configured to acquire configuration information of the protection link, where configuration information of the protection link includes at least an upper ring node The information, the lower ring node information, and the node information to be passed from the upper ring node to the lower ring node in the direction of the protection link; the second determining module 104 is configured to determine, according to the configuration information of the protection link, The last lower ring node in the direction of the protection link; the second configuration module 105 is configured to configure a forwarding label for other nodes on the protection link except the last lower ring node.
  • the upper ring node in the ring network determines whether the working link passes the fault point, and further, the upper ring node can bypass the fault point, select the working link and/or the protection link transmission point to multiple points. business. Compared with the prior art, the time required for switching to the protection link transmission service when the working link fails, and the bidirectional transmission on the same path are avoided, thereby saving bandwidth resources.
  • An embodiment of the present invention provides an upper ring node in a ring network, as shown in FIG.
  • the point-to-multipoint service in the ring network of the ring network includes at least a first lower ring node and a second a lower ring node, the direction of the working link is opposite to the direction of the protection link, and when a fault occurs in the ring network, determining whether the working link passes the fault point, and if the working link passes a point of failure, and in a direction of the working link, the first lower ring node is located downstream of the upper ring node and upstream of the fault point, and the point to multipoint is performed by the working link
  • the service is transmitted to the first lower ring node at least, or, if the working link passes the fault point, and in the direction of the working link, the second lower ring node is located downstream of the fault point and The upstream of the upper
  • the node provided by the embodiment of the present invention can determine whether the working link passes the fault point, and further, the node can bypass the fault point and select the working link and/or the protection link to transmit the point-to-multipoint service. Compared with the prior art, the time required to switch to the protection link transmission service when the working link fails, the time of the bidirectional transmission on the same path is avoided, and the bandwidth resource is saved.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

Selon des modes de réalisation, la présente invention concerne le domaine des communications et porte sur un procédé de protection de service point à multipoint pour réseau en anneau et un nœud d'anneau supérieur sur le réseau en anneau, réduisant le temps requis pour transmettre un service par une liaison de protection lorsqu'une défaillance survient. Le procédé comprend les opérations suivantes : le nœud d'anneau supérieur du service point à multipoint établit une liaison de travail et une liaison de protection qui utilisent le nœud d'anneau supérieur comme nœud initial sur le réseau en anneau; lorsqu'une défaillance survient sur le réseau en anneau, le nœud d'anneau supérieur détermine si la liaison de travail passe ou non par un point de défaillance; si la liaison de travail passe par le point de défaillance, et un premier nœud d'anneau inférieur se trouve à une position en arrière du nœud d'anneau supérieur et une position en avant du point de défaillance dans le sens de la liaison de travail, le nœud d'anneau supérieur envoie le service point à multipoint au moins au premier nœud d'anneau inférieur par la liaison de travail; si la liaison de travail passe par le point de défaillance, et un second nœud d'anneau inférieur se trouve à la position en arrière du point de défaillance et une position en avant du nœud d'anneau supérieur dans le sens de la liaison de travail, le nœud d'anneau supérieur envoie le service point à multipoint au moins au second nœud d'anneau inférieur par la liaison de protection.
PCT/CN2013/076365 2012-09-25 2013-05-29 Procédé de protection de service point à multipoint pour réseau en anneau et nœud d'anneau supérieur sur réseau en anneau WO2014048128A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210361216.1A CN102882757B (zh) 2012-09-25 2012-09-25 环网中点到多点业务的保护方法及环网中的上环节点
CN201210361216.1 2012-09-25

Publications (1)

Publication Number Publication Date
WO2014048128A1 true WO2014048128A1 (fr) 2014-04-03

Family

ID=47483910

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/076365 WO2014048128A1 (fr) 2012-09-25 2013-05-29 Procédé de protection de service point à multipoint pour réseau en anneau et nœud d'anneau supérieur sur réseau en anneau

Country Status (2)

Country Link
CN (1) CN102882757B (fr)
WO (1) WO2014048128A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102882757B (zh) * 2012-09-25 2015-01-28 华为技术有限公司 环网中点到多点业务的保护方法及环网中的上环节点
CN103973536A (zh) * 2013-02-05 2014-08-06 中国移动通信集团公司 点对多点环网保护方法和装置
CN103746891B (zh) * 2013-12-24 2017-09-26 华为技术有限公司 一种环网接入业务的保护方法、装置及系统
CN105681149B (zh) * 2015-12-29 2019-01-22 瑞斯康达科技发展股份有限公司 环网保护方法及装置
CN105978735B (zh) * 2016-06-30 2019-02-26 重庆世纪之光科技实业有限公司 串行总线通信网络的保护方法及装置
CN108075936A (zh) * 2016-11-16 2018-05-25 中国移动通信有限公司研究院 VxLAN探测方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101729229A (zh) * 2009-06-18 2010-06-09 中兴通讯股份有限公司 点到多点闭环系统及其保护方法以及该系统中的节点设备
CN102546425A (zh) * 2012-01-31 2012-07-04 华为技术有限公司 相交环保护方法、设备和系统
CN102882757A (zh) * 2012-09-25 2013-01-16 华为技术有限公司 环网中点到多点业务的保护方法及环网中的上环节点

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101364926B (zh) * 2007-08-08 2011-06-01 华为技术有限公司 一种网络保护的方法和设备
CN102014011A (zh) * 2009-09-04 2011-04-13 中兴通讯股份有限公司 环网保护方法与系统
CN102055658B (zh) * 2009-11-05 2013-01-16 杭州华三通信技术有限公司 快速环网保护协议单环组网中实现故障保护的方法及设备
CN102104520B (zh) * 2009-12-18 2013-08-21 中兴通讯股份有限公司 基于拓扑信息的环网保护方法与装置
CN101977141B (zh) * 2010-09-27 2012-05-23 南京邮电大学 一种基于mpls-tp的多播保护方法
CN102684973B (zh) * 2011-03-09 2017-03-29 中兴通讯股份有限公司 一种环网保护的方法及系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101729229A (zh) * 2009-06-18 2010-06-09 中兴通讯股份有限公司 点到多点闭环系统及其保护方法以及该系统中的节点设备
CN102546425A (zh) * 2012-01-31 2012-07-04 华为技术有限公司 相交环保护方法、设备和系统
CN102882757A (zh) * 2012-09-25 2013-01-16 华为技术有限公司 环网中点到多点业务的保护方法及环网中的上环节点

Also Published As

Publication number Publication date
CN102882757A (zh) 2013-01-16
CN102882757B (zh) 2015-01-28

Similar Documents

Publication Publication Date Title
US9705735B2 (en) System and method using RSVP hello suppression for graceful restart capable neighbors
JP5484590B2 (ja) 擬似ワイヤに基づいてサービストラヒックを処理するための方法、デバイスおよびシステム
US9059902B2 (en) Procedures, apparatuses, systems, and computer-readable media for operating primary and backup network elements
US8509059B2 (en) Method for operating a virtual router redundancy protocol router and communication system therefor
WO2014048128A1 (fr) Procédé de protection de service point à multipoint pour réseau en anneau et nœud d'anneau supérieur sur réseau en anneau
WO2012130034A1 (fr) Procédé et dispositif de reroutage rapide vpls
WO2012075831A1 (fr) Procédé et système de protection de multidiffusion
WO2009046655A1 (fr) Système, procédé et dispositif de commutation de protection automatique
KR20130055392A (ko) 점 대 다점 네트워크에서의 보호 절체 방법 및 장치
JP2013519268A (ja) データ転送方法、データ転送装置及びデータ転送システム
WO2020168854A1 (fr) Procédé, appareil, et système de multidiffusion evpn
WO2011147312A1 (fr) Procédé, dispositif et système de sauvegarde de port d'un routeur d'accès au service
WO2018113294A1 (fr) Procédé, dispositif et système de transfert de paquet
US20130132499A1 (en) Method and system for auto-configuartion, and network node
US10225091B2 (en) Method for implementing point-to-multipoint multicast, network node, and system
WO2012129921A1 (fr) Procédé de diffusion groupée et dispositif de diffusion groupée
WO2014146541A1 (fr) Système de convergence de cdn et de réseau, procédé de sélection de module de planification et support de stockage informatique
WO2011113395A2 (fr) Procédé et appareil d'équilibrage des charges
WO2011097893A1 (fr) Procédé, dispositif et système pour transmettre des données de réseau bouclé bidirectionnel e1
WO2010006524A1 (fr) Procédé de multidiffusion fiable, appareil et système fournisseur de couche supérieure
JP5352502B2 (ja) パケット通信システム及びパケット通信装置制御方法
WO2008040194A1 (fr) Procédé et système pour la protection d'un arbre de multidiffusion
CN103621020A (zh) 电信系统中的中间网络节点
WO2011140873A1 (fr) Procédé et appareil de transport de données pour une couche de transport optique
WO2012092897A2 (fr) Procédé de diagnostic des pannes dans un réseau de transport de paquets de données, noeud de réseau de transport de paquets de données et réseau de transport de paquets de données

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13840639

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13840639

Country of ref document: EP

Kind code of ref document: A1