[go: up one dir, main page]

WO2007115493A1 - Procédé, dispositif et système pour réaliser la commutation dans le réseau à double anneau de réseau vpls - Google Patents

Procédé, dispositif et système pour réaliser la commutation dans le réseau à double anneau de réseau vpls Download PDF

Info

Publication number
WO2007115493A1
WO2007115493A1 PCT/CN2007/001116 CN2007001116W WO2007115493A1 WO 2007115493 A1 WO2007115493 A1 WO 2007115493A1 CN 2007001116 W CN2007001116 W CN 2007001116W WO 2007115493 A1 WO2007115493 A1 WO 2007115493A1
Authority
WO
WIPO (PCT)
Prior art keywords
network
port
link
vpls
user
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/CN2007/001116
Other languages
English (en)
Chinese (zh)
Inventor
Wenyang Lei
Jianzhong Bi
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2007115493A1 publication Critical patent/WO2007115493A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection

Definitions

  • the present invention relates to the field of network communications, and in particular, to an implementation scheme of dual-homing network switching based on VPLS. BACKGROUND OF THE INVENTION
  • VLAN Virtual Local Area Network
  • VPLS Spanning Tree Protocol
  • VPLS Virtual Private LAN Service
  • VPLS is a point-to-multipoint Layer 2 VPN (Virtual Private Network) service provided in the public network.
  • VPN Virtual Private Network
  • VPLS can enable geographically different user sites to be connected through a metropolitan area network or a wide area network, and a network formed thereby is equivalent to being in the same local area network for each user.
  • VPLS virtual local area network
  • NPEs network-side carrier edge devices
  • UPE user-side carrier edge device
  • MAC in MAC MIM, MAC address in MAC address
  • VLAN TAG Virtual Private Network Label
  • a Layer 2 switching network is a mesh structure in an enterprise application. In order to allow any point in the network to reach other nodes, a mapping relationship is automatically learned through a MAC address to form a forwarding route. At the same time, in order to improve the reliability of the network, each device needs to use more redundant links. This makes the Layer 2 Ethernet switching network inevitably form a network loop. To overcome the network loop, STP (Spanning Tree Protocol) has emerged.
  • STP Spanning Tree Protocol
  • the STP is used to prun a looped network into a loop-free tree topology by transferring device port information between devices in a Layer 2 switched network.
  • one device A is connected to device B and device C at the same time, and the connections between the devices form a link.
  • the two links formed by devices A and B and devices A and C are backups of each other.
  • the structured network is called a dual-homed network.
  • the dual-homing network can provide link backup, node backup, and load balancing functions, which can greatly improve the reliability of the network.
  • the dual-homing technology provides the basic topology of the redundant link. Currently, the dual-homing technology has been widely applied to operators. In the network.
  • a Layer 2 network composed of Ethernet switches the following includes: Using VPLS to provide a local area network access technology; MIM technology can quickly find a target in the network; Problems such as message transmission and link failure in communication and changes in topology structure are handled by the spanning tree protocol. For network reliability, the reliability of the network can be improved through dual-homing networking.
  • the prior art specifically provides a redundant connection of the device in one VLAN, and starts STP on each port of the entire network device, and calculates the primary port and the standby port through the STP protocol, so that the master With the port in the forwarding state, the other backup ports are blocked.
  • the primary port fails, the BPDU (bridge protocol routing unit) bridge protocol data packet spreads the topology change information of the network to the entire network, and recalculates the topology of a loop-free tree. Convert the original blocked port to a normal forwarding port. The failed primary port is blocked or does not participate in topology calculation, thus completing the switchover of the standby port to the primary port.
  • bridge protocol routing unit bridge protocol data packet spreads the topology change information of the network to the entire network, and recalculates the topology of a loop-free tree. Convert the original blocked port to a normal forwarding port. The failed primary port is blocked or does not participate in topology calculation, thus completing the switchover of the standby port to the primary port.
  • the BPDU packet After the fault of the active port is removed, the BPDU packet advertises the changed network topology information, triggers the STP spanning tree calculation, and maintains the new tree network topology.
  • the prior art has the disadvantage that the link switching time and the interrupt service time are long, that is, because the STP is the BPDU4 diffusion of the entire Layer 2 network, according to the entire network.
  • the topology information is switched into the spanning tree calculation, which causes the link switching convergence speed to be 'ft.
  • the corresponding active/standby link switching process takes a long time; Improved RSTP (Rapid Spanning Tree Protocol) ) Still unable to meet the switching time requirement of telecommunication equipment less than 50 ms.
  • the port state has an oscillating phenomenon of repeated changes, resulting in a long interruption of service time in the port state switching process. Summary of the invention
  • An embodiment of the present invention provides a method, a device, and a system for implementing a VPLS-based dual-homed network handover, in which a dual-homed link from a UPE to an NPE can be quickly and securely switched in a VPLS network.
  • An embodiment of the present invention provides a method for implementing VPLS-based dual-homed network switching, including:
  • the primary and secondary ports in the protection group of the dual-homing network of the VPLS network of the virtual private local area network service are switched, and the device that notifies the device in the VPLS network to learn the new mapping relationship is sent;
  • the device in the VPLS network learns the corresponding mappings based on the received broadcast messages and sends the service packets through the standby link.
  • An embodiment of the present invention provides a user-side operator edge device that implements dual-home network switching based on VPLS, including a fault detection processing unit and a broadcast packet sending unit, where: a fault detection processing unit is configured to detect when the link is detected. Controlling the double return of the VPLS network in case of failure The primary and secondary ports in the protection group of the network are switched, and the broadcast packet sending unit is triggered. The broadcast packet sending unit is configured to send a notification under the trigger of the fault detection processing unit.
  • the device in the VPLS network learns the broadcast packets of the new mapping relationship.
  • the embodiment of the present invention provides a network side operator edge device that implements dual-home network switching based on VPLS, and includes a mapping relationship update learning unit and a message sending processing unit, where: a mapping relationship update learning unit is configured to receive the user side. Broadcast packets sent by the edge device of the carrier, and learn to update the mapping information saved by the device;
  • the message sending processing unit is configured to send the service message through the standby link according to the updated mapping relationship.
  • Embodiments of the present invention provide a system for implementing dual-homing network switching based on VPLS, including:
  • the user-side operator edge device is configured to control the primary and secondary ports in the protection group of the dual-homing network of the VPLS network to perform handover after the link detects the fault, and send a notification to the device in the VPLS network to learn a new mapping relationship. Broadcast message
  • the device in the VPLS network learns the corresponding mappings based on the received broadcast packets and sends the service packets through the standby link.
  • FIG. 1 is a flow chart of an embodiment of a method provided by the present invention
  • 2 is a schematic diagram of a dual-homed network in an embodiment of the present invention
  • FIG. 3 is a schematic diagram of dual-homed network port switching in an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a dual-homed network link switching success according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an apparatus and system according to an embodiment of the present invention.
  • Modes for Carrying Out the Invention The implementation provided by the present invention includes: The process of protecting the handover is only implemented locally in the access network of the UPE to the NPE, and does not depend on the state of the peer in the UPE and the NPE, that is, the UPE and the peer are not required.
  • the NPE negotiates to implement fast switching between the active and standby links.
  • the present invention transmits a broadcast message to the NPE connected to the NPE through the UPE of the link, and the NPE continues to send the broadcast message in the VPLS network.
  • Each NPE can learn the MAC address information of the UPE.
  • Step 11 Establish a protection group in the VPLS network.
  • the protection group consists of the primary and backup links and the port 1 +1 backup. Both the link and the port have the forwarding status and the blocking status. In the forwarding state, the link and port forwarding are reported. In the blocked state, the link and port do not forward packets.
  • the protection group G1 is composed of the P1 port of the UPE1 and the link of the NPE1, and the P2 port of the UPE1 and the NPE2.
  • MAC in MAC protection channel.
  • protection group G1 is applied to port P1 and port P2, and the primary port and the alternate port are specified through configuration. Assuming that the primary port is P1 and the standby port is P2, P1 needs to be set to the forwarding state and P2 is set to the blocking state.
  • the outer Ethernet packet header needs to be added based on the MAC in MAC, and the packet header includes a source address, a destination address, and a VLAN tag.
  • the protection group is as shown in Figure 2.
  • the corresponding packet header includes the source address SP-MAC1, the destination address SP-MAC2, and the VLAN tag SP-VLAN1.
  • the purpose of adding an Ethernet packet header is to enable rapid utilization when the link is switched. Destination The binding relationship between the address and the port and the link quickly finds the destination, and because it contains the source address, according to it, the loss of the data packet when the link failure recovery is close to zero packet loss rate.
  • the present invention will cite two methods for illustrating the basic binding relationship between the user packet information, the outer Ethernet header information, and the protection group outgoing port (or outgoing VLAN) in UPE1; of course, in practical applications, It is limited to these two specific embodiments for managing basic binding relationships.
  • Example 1 The following two mapping tables are created in UPE1.
  • Table 1 is based on the user's MAC address and VLAN class classification. According to this classification, users correspond to different protection groups, and the outer Ethernet header information is obtained.
  • Table 2 shows the corresponding primary and backup ports according to different protection groups. In multiple applications, the information about the primary SP-VLAN and the secondary SP-VLAN is obtained.
  • the mapping relationship in the method 1 of the present invention is based on the detailed information of the user and other different protection group relationships, establishing a correspondence between the user and the primary and backup ports, and enabling the user to switch between the primary port and the alternate port according to the corresponding relationship.
  • Example 2 The following three mapping tables are established in UPE1.
  • Table 3 is based on the user information packets, to find the next hop destination MAC address of the Ethernet layer t Table 4 UPE1 protective group mapping table
  • SP-MAC2 PI P2 Optional Optional Table 4 Find the primary and secondary outgoing port and the secondary outgoing port information based on the outer Ethernet destination MAC address. In a multi-instance application, information about the primary SP-VLAN and the alternate SP-VLAN is obtained.
  • Table 5 Find the outer Ethernet source MAC address based on the port information.
  • the mapping relationship of the second embodiment of the present invention is based on the process of searching for a destination when the user performs the switching between the active and standby ports, and the correspondence between the established user and the primary and backup ports, and the user is configured to perform the primary port and the standby port according to the corresponding relationship. Switch.
  • mapping relationships listed in the present invention describe the basic relationship between the user packet information, the outer Ethernet header information, and the protection group outgoing port. Obviously, the basic relationship may also be determined according to the needs of the user. , ⁇ use other methods to describe.
  • the packet encapsulation and forwarding processing can be performed based on the above-mentioned setting of the user packet information, the outer Ethernet header information, and the basic binding relationship of the protection group egress port (or out VLAN).
  • the corresponding switching between the active and standby links can also be performed according to the above information to ensure the reliability of the communication.
  • Step 12 After the primary link fails, the UPE sends a broadcast packet carrying the source address to the backup port. After receiving the broadcast packet, the corresponding NPE re-learns the mapping relationship according to the information carried in the broadcast packet. The mapping relationship information in the MAC table in the NPE is updated, so that normal communication can be resumed.
  • the fault information can be detected by a specific fault detection mechanism.
  • the method can also add a new method according to the needs of the user.
  • the specific implementation of the step includes changing the port P2 of the UPE1 from the blocking state to the forwarding state, and setting the port P1 state of the UPE1 to the blocking state.
  • UPE1 sends the carrier to the P2 port.
  • the NPE2 sends the broadcast packet to all the relevant NPE devices in the local VPN, and the broadcast packet carries the MAC address SP-MAC1 to make all the broadcast packets.
  • the NPE re-learns the SP-MAC1 address; for example, in Figure 3, the address in the MAC entry of the NPE3 is changed from the original port PW5 of the SP-MAC2 to the outbound port PW6 of the SP-MAC2, ensuring the UPE2.
  • the transmitted Ethernet service packet is changed, the information can be forwarded to the PW6 port.
  • an NPE On a VPLS network, after an NPE receives a broadcast packet from another NPE, it does not forward it to other NPEs. That is, the broadcast packet is forwarded only within a specific VPLS range. For example, in Figure 3, the corresponding packet is forwarded.
  • the transmission path of broadcast packets is UPE1—> NPE2—> NPE1, NPE3, and NPE4.
  • Step 13 After the active/standby switchover succeeds, the standby communication link is started.
  • the UPE sends information through the alternate communication link according to the information in the protection group mapping table.
  • the corresponding path for forwarding packets from UPE2 to UPE1 is: UPE2 —>NPE3—>NPE2—>UPE1.
  • UPE1 JUPE2 ⁇ i H'J finds the protection group mapping table because of the forwarding table in UPE1.
  • the outgoing port of the user packet of the protection group is changed to port P2, and the source MAC address and destination MAC address remain unchanged. Therefore, the service packets from UPE1 to UPE2 are forwarded according to the path UPE1 -> NPE2 -> NPE3 -> UPE2. Got it.
  • the outbound port of the SP-MAC2 entry in the MAC table of the NPE2 is PW2, and the information of this entry is learned by the MAC broadcast packet sent by the NPE3. If the SP-MAC2 is deleted due to aging, the first information sent by the NPE3 is the destination address, the destination address is SP-MAC1, and the source address is learned by the NPE3 from the SP-MAC2 packet.
  • the SP-SA-MAC and the SP-DA-MAC of the protection group G1 remain unchanged, thereby avoiding the handover caused by the modification of the MAC address by the UPE2. Prolonged.
  • Step 14 When the primary port P1 is recovered by the fault detection mechanism, the UPE1 is pressed. According to the reverse process of the above process (that is, the process of switching from the P2 port to the P1 port), that is, the operation mode of the active/standby switchover is switched back to the active port P1 from the currently used standby port P2, so that the UPE1 is adopted.
  • the original primary link performs communication with UPE2;
  • failover switching is controllable, and the failover is caused by an external trigger and cannot be controlled.
  • the primary link and the primary port are restored from the blocked state to the forwarded state, and the original standby link and the original standby port are again converted into the blocked state.
  • the UPE1 sends the broadcast message with the source address, and refreshes the information in the MAC table in the NPE3, so that the protection group G1 in the UPE1 is successfully switched to the protection group egress port to ensure the loss rate of the data packet when the fault is recovered. Close to zero packet loss rate.
  • UPE1 After the primary port P1 and the standby port are successfully switched, UPE1 has a suppression time for the continuous switching of the protection group. That is, after the failure of the primary port P1 is recovered, the switch does not immediately switch, but after the switch is forbidden for a period of time, the link can be used. Continuous switching operations are performed, so that it is possible to avoid repeated switching of ports in the link due to unstable communication at the time when the communication link resumes connection. At the same time, the link state will not oscillate due to the control plane cause caused by the protocol calculation.
  • the present invention also provides a user-side operator edge device that implements dual-homed network switching based on VPLS, a network-side operator edge device that implements dual-homed network switching based on VPLS, and a dual-home network switching system for VPLS, wherein the The system includes the user-side operator edge device and the network-side operator edge device.
  • the specific implementation of the device and system of the present invention is as shown in FIG. 5, and the following functional units may be specifically included in the system:
  • the user-side operator edge device is configured to switch between the primary and secondary ports in the protection group of the dual-homing network of the VPLS network when the link detects the fault, and trigger a broadcast message sending unit.
  • the fault detection processing unit specifically includes:
  • a fault detecting unit configured to detect a fault in the link, and after detecting the fault, triggering the master
  • the port processing unit and the alternate port processing unit broadcast the message sending unit;
  • the primary port processing unit is configured to convert the primary port in the user-side operator edge device into a blocking state, that is, control the primary port to be no longer performed. Text transmission processing;
  • the backup port processing unit is configured to convert the standby port in the user-side operator edge device into a forwarding state, that is, control the transmission processing of the packet by the standby port.
  • the broadcast packet of the relationship if it is set in the edge device of the network side, is used to forward the received broadcast packet, specifically, forwarding the broadcast packet only in the VPLS network (that is, the local VPN). deal with;
  • the unit is disposed in the VPLS network, and is configured to be in the edge device of the network side, and is configured to learn the mapping relationship according to the received broadcast message, that is, update the mapping relationship information in the MAC table.
  • the specific processing of the information in the MAC table saved in the device includes: if the broadcast packet is triggered by the fault detection processing unit, the mapping relationship information in the updated MAC table is After the broadcast packet is triggered by the link failure recovery processing unit, the broadcast packet is learned to update the mapping relationship information in the MAC table according to the received broadcast packet. , indicating that the primary link needs to be used for sending a service packet. '
  • the unit may be configured in the network side carrier edge device in the VPLS network, and configured to send the service packet through the standby link according to the updated mapping relationship information.
  • Link failure recovery processing unit The unit is configured in the user-side operator edge device, and is configured to restore the primary link and the primary port from the blocked state to the forwarding state when the link is faulty, that is, the primary link and the primary port are responsible for reporting.
  • the sending process of the file converts the standby link and the standby port into a blocking state, that is, the message is no longer sent by the standby link and the standby port; and the unit further includes triggering the broadcast message sending unit, so as to update the corresponding
  • the MAC table information in the edge device of the network side operator triggers the broadcast message sending unit to send a broadcast message with a source address.
  • the system may also be provided with a delay triggering unit for controlling the triggering time of the link fault recovery processing unit, which is set in the edge device of the user side operator, and is used to control when the primary and secondary ports are switched. After the delay is delayed for a predetermined period of time, the link failure recovery processing unit is triggered.
  • the user-side operator edge device of the present invention includes the fault detection processing unit and the broadcast packet sending unit, and may include the link fault recovery processing unit and the extension of the connection communication.
  • the network side operator edge device includes the mapping relationship update learning unit and the message sending processing unit, and may include the broadcast message sending unit; wherein, the specific function of each unit functions in front It has been described and will not be described in detail.
  • the present invention utilizes the information in the protection group to enable the handover of the dual-homing network to be protected in the local network. After the fault is recovered, the recovery link is not immediately switched, but is suppressed for a period of time. Perform link recovery switching, which avoids repeated switching due to link instability. Therefore, the present invention can perform local network switching operations reliably and securely, making network topology calculation simple and fast, and avoiding repeated oscillations during network switching.

Landscapes

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

Abstract

La présente invention concerne un procédé, un dispositif et un système pour réaliser la commutation dans le réseau à double anneau de réseau VPLS, comprenant: l'établissement du groupe de protection comportant le lien principal et le lien auxiliaire dans le réseau à double anneau de réseau VPLS; lors de la détection de défaillance de lien, la transmission du message diffusé pour informer les dispositifs dans le réseau VPLS d'apprendre le mappage d'une nouvelle adresse de commande d'accès au support dans le groupe de protection, afin de réaliser la commutation depuis le lien et le port principal vers le lien et le port auxiliaire; lorsque la défaillance est éliminée, le rétablissement du lien principal après une certaine période d'interdiction au lieu d'effectuer l'opération de commutation immédiatement, de sorte que l'oscillation répétée ne soit pas présente lors de la commutation des liens. La présente invention permet la commutation rapide, sûre et simple de la partie des liens du réseau VPLS dans le réseau à double anneau.
PCT/CN2007/001116 2006-04-10 2007-04-06 Procédé, dispositif et système pour réaliser la commutation dans le réseau à double anneau de réseau vpls Ceased WO2007115493A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610073158.7 2006-04-10
CN 200610073158 CN101047601B (zh) 2006-04-10 2006-04-10 基于vpls的双归属网络的实现方法及系统

Publications (1)

Publication Number Publication Date
WO2007115493A1 true WO2007115493A1 (fr) 2007-10-18

Family

ID=38580712

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001116 Ceased WO2007115493A1 (fr) 2006-04-10 2007-04-06 Procédé, dispositif et système pour réaliser la commutation dans le réseau à double anneau de réseau vpls

Country Status (2)

Country Link
CN (1) CN101047601B (fr)
WO (1) WO2007115493A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102104489A (zh) * 2009-12-16 2011-06-22 中兴通讯股份有限公司 一种通信链路保护方法、装置和系统
US8233379B2 (en) 2007-12-14 2012-07-31 Huawei Technologies Co., Ltd. Method, network element device and network system for establishing connection between maintenance node and base station
WO2014202026A1 (fr) * 2013-06-21 2014-12-24 中兴通讯股份有限公司 Procédé et système de protection de mappage de réseau virtuel et support d'informations informatique
CN106230728A (zh) * 2013-12-12 2016-12-14 福建三元达网络技术有限公司 线路震荡的情况下路由快速收敛的方法及装置
CN109815065A (zh) * 2019-01-31 2019-05-28 杭州迪普科技股份有限公司 双机的主备切换方法、装置、电子设备
CN110278094A (zh) * 2018-03-13 2019-09-24 中兴通讯股份有限公司 链路恢复方法及装置、系统、存储介质、电子装置
CN115065614A (zh) * 2022-06-22 2022-09-16 杭州云合智网技术有限公司 Vpws多活的业务连通性的识别方法
TWI892162B (zh) * 2023-06-20 2025-08-01 四零四科技股份有限公司 網路交換器及其雙宿制的鏈路恢復方法

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101159690B (zh) * 2007-11-19 2010-10-27 杭州华三通信技术有限公司 多协议标签交换转发方法、装置及标签交换路径管理模块
CN101615989A (zh) * 2008-06-26 2009-12-30 中兴通讯股份有限公司 以太网双归组网及其mac地址表刷新方法
CN101626335B (zh) * 2008-07-09 2013-02-27 中兴通讯股份有限公司 一种双归连接网络的数据保护方法
CN101340351A (zh) * 2008-08-19 2009-01-07 华为技术有限公司 一种vpls网络中的数据传输方法、装置和系统
CN101465858B (zh) * 2008-12-31 2013-03-20 中兴通讯股份有限公司 监控业务中实现私网穿越的方法、网络设备和服务器
CN102549979A (zh) * 2009-07-10 2012-07-04 诺基亚西门子通信公司 用于传送业务的方法和设备
CN101958812B (zh) * 2009-07-15 2015-10-21 中兴通讯股份有限公司 链路故障检测方法及系统
CN102548026B (zh) * 2009-08-06 2014-12-31 华为技术有限公司 连接资源释放处理方法和装置
CN101640941B (zh) 2009-08-06 2012-03-21 华为技术有限公司 连接资源释放处理方法和装置
WO2011044731A1 (fr) * 2009-10-15 2011-04-21 中兴通讯股份有限公司 Procédé et appareil pour reprise de service rapide d'équipement de données
US8990411B2 (en) * 2010-04-22 2015-03-24 Microsoft Technology Licensing, Llc Dynamic connection management on mobile peer devices
CN102316014B (zh) * 2010-07-01 2015-01-21 杭州华三通信技术有限公司 分层虚拟专用局域网服务环境下的负载分担方法及路由器
CN102325037B (zh) * 2011-05-25 2016-01-20 中兴通讯股份有限公司 一种伪线双归网络的切换方法、系统和双归属运营商设备
CN102223660B (zh) * 2011-08-02 2013-10-09 华为技术有限公司 一种控制主备伪线切换的方法和装置
CN102638469B (zh) * 2012-04-12 2015-07-22 北京星网锐捷网络技术有限公司 路径切换方法、装置、系统和网络设备
CN103580961B (zh) * 2012-08-06 2016-12-21 杭州华三通信技术有限公司 Vlan分配方法和设备
CN103888353B (zh) * 2012-12-19 2017-07-14 北京华为数字技术有限公司 保护组保护倒换回切处理方法及客户边缘设备
CN104125083A (zh) * 2013-04-24 2014-10-29 中兴通讯股份有限公司 一种网络设备的主备倒换方法、装置、设备及系统
CN113542093B (zh) * 2013-05-24 2024-11-29 华为技术有限公司 用于以太虚拟专用网的方法和设备
CN103634215B (zh) * 2013-12-17 2016-09-07 中国联合网络通信集团有限公司 一种mac地址同步的方法、装置
CN104734874B (zh) * 2013-12-20 2018-04-27 华为技术有限公司 一种确定网络故障的方法及装置
CN104869055B (zh) * 2014-02-20 2019-11-05 南京中兴软件有限责任公司 一种数据转发方法及装置
CN103888356B (zh) * 2014-04-12 2018-03-02 湖南省通信建设有限公司 Vpls实现方法、系统和提供商边缘设备
CN104468233B (zh) * 2014-12-23 2018-01-12 新华三技术有限公司 以太网虚拟化互联双归属站点故障切换方法及装置
CN104601381B (zh) * 2015-01-30 2018-07-20 新华三技术有限公司 防止流量中断的方法和设备
CN106209398A (zh) * 2015-04-30 2016-12-07 中兴通讯股份有限公司 一种基于管理信息模型获取业务错误信息的方法及装置
CN106937254A (zh) * 2015-12-31 2017-07-07 希姆通信息技术（上海）有限公司 Zigbee定位组网设备定时自检系统及方法
CN105979490B (zh) * 2016-07-20 2019-05-07 浙江昱能科技有限公司 一种无线通信组网的通信设置修改方法
CN107579899B (zh) * 2017-09-29 2020-04-28 烽火通信科技股份有限公司 一种vpls中实现vlan隔离的接入方法及装置
CN108270624A (zh) * 2018-01-30 2018-07-10 中波动光工业通信（江苏）有限公司 一种耦合网络中冗余网路传输路径快速切换的方法
CN110177010B (zh) * 2019-05-07 2022-05-24 京信网络系统股份有限公司 一种链路切换方法及装置
CN110120891A (zh) * 2019-05-13 2019-08-13 北京东土军悦科技有限公司 组网中阻止链路回切的方法、装置、网络设备及存储介质
CN112039766B (zh) * 2020-09-04 2022-08-02 苏州盛科通信股份有限公司 基于以太网的保护切换实现方法和装置
CN115277545A (zh) * 2022-06-21 2022-11-01 浪潮通信技术有限公司 主备网络切换方法及装置
CN115051946A (zh) * 2022-07-05 2022-09-13 杭州云合智网技术有限公司 双归属场景的报文转发成环的消除方法
CN114978296B (zh) * 2022-08-01 2022-11-15 成都星联芯通科技有限公司 设备切换方法、装置、地球站及可读存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1561041A (zh) * 2004-02-26 2005-01-05 中兴通讯股份有限公司 一种以太网接口热备份的装置及方法
CN1610314A (zh) * 2003-10-22 2005-04-27 华为技术有限公司 Pvc组通信网络中实现pvc组备份的方法
WO2006019536A2 (fr) * 2004-07-15 2006-02-23 Riverstone Networks, Inc. Obtention d'informations de trajectoire liees a un reseau base sur des services de lan prive virtuel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1610314A (zh) * 2003-10-22 2005-04-27 华为技术有限公司 Pvc组通信网络中实现pvc组备份的方法
CN1561041A (zh) * 2004-02-26 2005-01-05 中兴通讯股份有限公司 一种以太网接口热备份的装置及方法
WO2006019536A2 (fr) * 2004-07-15 2006-02-23 Riverstone Networks, Inc. Obtention d'informations de trajectoire liees a un reseau base sur des services de lan prive virtuel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LASSERRE M.: "Virtual Private LAN Services over MPLS", INTERNET DRAFT DOCUMENT L2VPN WORKING GROUP DRAFT-IETF-12VPN-VPLS-LDP-08.TXT, November 2005 (2005-11-01), XP015042479 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8233379B2 (en) 2007-12-14 2012-07-31 Huawei Technologies Co., Ltd. Method, network element device and network system for establishing connection between maintenance node and base station
CN102104489A (zh) * 2009-12-16 2011-06-22 中兴通讯股份有限公司 一种通信链路保护方法、装置和系统
WO2014202026A1 (fr) * 2013-06-21 2014-12-24 中兴通讯股份有限公司 Procédé et système de protection de mappage de réseau virtuel et support d'informations informatique
US10411949B2 (en) 2013-06-21 2019-09-10 Zte Corporation Method and system for virtual network mapping protection and computer storage medium
CN106230728A (zh) * 2013-12-12 2016-12-14 福建三元达网络技术有限公司 线路震荡的情况下路由快速收敛的方法及装置
CN106453095A (zh) * 2013-12-12 2017-02-22 福建三元达网络技术有限公司 基于is‑is模块的路由快速收敛的方法
CN106230728B (zh) * 2013-12-12 2019-05-21 安科讯(福建)科技有限公司 线路震荡的情况下路由快速收敛的方法及装置
CN110278094A (zh) * 2018-03-13 2019-09-24 中兴通讯股份有限公司 链路恢复方法及装置、系统、存储介质、电子装置
CN109815065A (zh) * 2019-01-31 2019-05-28 杭州迪普科技股份有限公司 双机的主备切换方法、装置、电子设备
CN109815065B (zh) * 2019-01-31 2022-09-30 杭州迪普科技股份有限公司 双机的主备切换方法、装置、电子设备
CN115065614A (zh) * 2022-06-22 2022-09-16 杭州云合智网技术有限公司 Vpws多活的业务连通性的识别方法
CN115065614B (zh) * 2022-06-22 2023-10-13 杭州云合智网技术有限公司 Vpws多活的业务连通性的识别方法
TWI892162B (zh) * 2023-06-20 2025-08-01 四零四科技股份有限公司 網路交換器及其雙宿制的鏈路恢復方法

Also Published As

Publication number Publication date
CN101047601A (zh) 2007-10-03
CN101047601B (zh) 2010-12-01

Similar Documents

Publication Publication Date Title
WO2007115493A1 (fr) Procédé, dispositif et système pour réaliser la commutation dans le réseau à double anneau de réseau vpls
US7751329B2 (en) Providing an abstraction layer in a cluster switch that includes plural switches
CN101931520B (zh) 一种切换方法及系统
EP2533475B1 (fr) Procédé et système pour l'accessibilité de route hôte dans une boucle d'accès de réseau de transport par paquets
JP4899959B2 (ja) Ｖｐｎ装置
CN102638389B (zh) 一种trill网络的冗余备份方法及系统
CN104221336B (zh) 用于虚拟网络架构链路故障恢复的系统和方法
US20130272114A1 (en) Pseudo wire switching method and device
WO2008083590A1 (fr) Procédé et appareil de convergence rapide d'un service point à point
CN101340351A (zh) 一种vpls网络中的数据传输方法、装置和系统
CN101610221B (zh) 一种stp切换时ip单播平滑切换的方法及装置
WO2012159489A1 (fr) Procédé de commutation, système et dispositif fournisseur de double anneau pour réseau à double anneau de pseudo-circuit
US8520509B2 (en) System and a method for routing data traffic
WO2007062559A1 (fr) Procede et passerelle de restitution de service au moment de la permutation entre passerelles pilote et asservie
CN102142948A (zh) 一种数据转发方法、装置及系统
WO2012171378A1 (fr) Procédé et routeur pour prévenir une interruption de flux provoquée par basculement de vpls vers l3
WO2012162946A1 (fr) Procédé et système de traitement de message
WO2009111955A1 (fr) Procédé destiné à mettre à jour une table d'adresses d'un nœud de réseau ethernet en anneau
JP2003258822A (ja) パケットリングネットワーク及びそれに用いるパケットリングネットワーク間の接続方法
WO2012146097A1 (fr) Réseau vpls et procédé et dispositif de commutation d'anneau ethernet
CN102239670B (zh) 一种负载分担方法和装置
CN100571205C (zh) 一种接入网络中的组播业务保护方法及其系统、装置
WO2010006524A1 (fr) Procédé de multidiffusion fiable, appareil et système fournisseur de couche supérieure
WO2014101125A1 (fr) Procédé, dispositif et système de négociation de liaison d'un groupe d'agrégation
EP2547041B1 (fr) Procédé de mise en oeuvre de multidiffusion, équipement de couche d'accès et système sous architecture de réseau en anneau

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: 07720689

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: 07720689

Country of ref document: EP

Kind code of ref document: A1