WO2018108149A1 - Procédé et appareil de commutation de liaison de données et dispositif de commutation de liaison de données - Google Patents

Procédé et appareil de commutation de liaison de données et dispositif de commutation de liaison de données Download PDF

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Publication number
WO2018108149A1
WO2018108149A1 PCT/CN2017/116457 CN2017116457W WO2018108149A1 WO 2018108149 A1 WO2018108149 A1 WO 2018108149A1 CN 2017116457 W CN2017116457 W CN 2017116457W WO 2018108149 A1 WO2018108149 A1 WO 2018108149A1
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Prior art keywords
link
port
information
switching
switch
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PCT/CN2017/116457
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English (en)
Chinese (zh)
Inventor
黄治文
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中兴通讯股份有限公司
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Publication of WO2018108149A1 publication Critical patent/WO2018108149A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • 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
    • H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
    • 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

Definitions

  • the present invention relates to the field of optical communications and computers, and in particular, to a data link switching method and apparatus.
  • An optical line terminal (OLT) device usually needs to have a switching protection function.
  • OLT optical line terminal
  • the packet that should be sent to the failed port needs to be changed. It is sent to an alternate port that is used to replace the failed port to protect the normal use of the OLT device.
  • the port forwarding table needs to be updated synchronously between the peripheral switching chips of the OLT device, the update time of the port forwarding table is long, and another mechanism is needed to reduce the packet loss during the update. rate.
  • the present invention provides a data link switching method, a data link switching device, and a data link switching device, to solve the problem that the device bandwidth utilization is not high, the design is complicated, the versatility is low, and the multi-function cannot be targeted in the data link switching process. At least one of technical problems such as handling of a fault condition differently.
  • a data link switching method comprising the steps of: collecting link failure status information and link port information by a central processor; and transmitting the link failure status information by the central processor And the link port information is encapsulated into The link switch message is sent to the network processor, where the link switch message is used to instruct the network processor to perform link switch.
  • a data link switching method including the steps of: a network processor receiving a message, where the network processor extracts the message if the message is a link switch message Link failure status information and link port information carried in the message; in the case that the failure status indicated by the link failure status information is a handover allowed state, the network processor is based on the priority in the handover port database Selecting a target switching port; and the network processor switching a forwarding function of the port pointed to by the link port information to the target switching port.
  • a data link switching apparatus includes: a collection module, configured to collect link failure status information and link port information; and a packaging module, configured to: The link port information is encapsulated into a link switch message, and the sending module is configured to send the link switch message to the network processor.
  • a data link switching apparatus including: a receiving module, configured to receive a message, and in a case where the packet is a link switching message, extracting the packet Carrying link fault state information and link port information; selecting a module, in the case that the fault state indicated by the link fault state information is a permission to switch state, the selecting module selects according to a priority in the switch port database a target switching port; and a switching module, configured to switch a forwarding function of the port pointed to by the link port information to the target switching port selected by the selecting module.
  • a data link switching device includes a network processor and a central processor, wherein the central processor is configured to collect link failure status information and link port information of a faulty port Transmitting, to the network processor, a link switch message including the link fault status information and the link port information, and the network processor is configured to receive the message sent by the central processor, And in the case that the packet is a link switch message, extracting link fault state information and link port information carried in the packet, where the fault state indicated by the link fault state information is allowed to be switched.
  • the target switching port is selected according to the priority in the switching port database, and the forwarding function of the port pointed to by the link port information is switched to the target switching port.
  • FIG. 1 is a flow chart of a data link switching method in accordance with an embodiment of the present invention
  • FIG. 2 is a flowchart of a data link switching method according to another embodiment of the present invention.
  • FIG. 3 is a schematic block diagram of a data link switching device in accordance with an embodiment of the present invention.
  • FIG. 4 is a schematic block diagram of a data link switching apparatus according to another embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of a network processor based line card in accordance with an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a link switch port conversion table according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a link switching function switch table according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a microcode link switching information table according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a link switch message in accordance with an embodiment of the present invention.
  • FIG. 1 is a flow chart of a data link switching method in accordance with an embodiment of the present invention.
  • a data link switching method may include the steps of collecting link failure state information and link port information by a central processing unit (S101); and causing a link failure through a central processing unit.
  • the status information and link port information are encapsulated into a link switch message and sent to the network processor (S102).
  • the link switch message can be used to instruct the network unit to perform link switch.
  • synchronously updating the data status of all the boards may result in excessive link switching and excessive packet loss, and data link switching may be implemented in different manners in different scenarios. It can lead to complicated logic.
  • the data link switching method according to the present invention can effectively avoid or reduce the packet loss of the forwarding data during the data state synchronization process of the card during the link switching, and can solve the problem that the specific failure scenario cannot be differentiated. The solution to the problem.
  • a Central Processing Unit (CPU) is used as a collection unit of failure information of a collection port, and a Network Processor (NP) is used as a forwarding unit for forwarding data.
  • the CPU notifies the NP of the status information required for the switching of the various types of data links in the form of a message, and the NP searches the specific microcode table according to the received status information to obtain the link switching operation information to be taken, and according to the obtained chain.
  • the path switching operation information forwards the packet.
  • the CPU detects various types of status information in various fault scenarios that need to perform link switching processing, and generates a message according to the status information.
  • the packet header carries all the status information that may affect the link switching processing mode.
  • Link failure status information can be generated by abstracting scenarios of various link failures.
  • the link failure status information may include one of the following link failures: loss of optical network unit signal, port not establishing link, continuity check exception, bidirectional forwarding detection failure, and the like.
  • the link port information indicates the identity of the port and may include, but is not limited to, port type information and port identity information.
  • link failure state information can be divided into a plurality of types.
  • the CPU may generate one or more messages and send them to the NP for processing.
  • Each packet can trigger an operation of searching for a link switching information table, thereby implementing switching processing of multiple data links.
  • the link fault status information may be divided into two sets of serial and parallel by type, and the types may include, but are not limited to, optical network unit signal loss, port not established link, continuity check abnormality, bidirectional forwarding detection failure, and the like. In a serial set, if there are two or more types of link failure status information, multiple messages must be generated accordingly.
  • the NP after receiving the packet sent by the CPU, the NP searches only the link switching information table once. Parallel set If there are two or more types of link fault status information, only one packet can be generated and various link fault status information can be carried in the packet header at the same time. In this case, after receiving the packet sent by the CPU, the NP searches the link switch information table multiple times and performs the corresponding packet forwarding special processing according to the result of the lookup table of the link switch information table, thereby improving the chain. The response speed of the road switch.
  • the link failure state information may be encapsulated using a message having a variable header length, so that only one message carrying multiple types of link failure state information may be generated.
  • the NP After receiving the packet, the NP needs to extract the link fault status information of all types (for example, N types) from the packet header after detecting that the packet header is a variable length header. N parts for loopback processing.
  • Each packet receives the link fault status information at different offset positions of the packet header according to the sequence number of the packet, and performs an operation of searching for the link switching information table, and then performs corresponding operations according to the result of the lookup table. Link switching operation.
  • FIG. 2 is a flow chart of a data link switching method according to another embodiment of the present invention.
  • the data link switching method may include the following steps: the network processor receives the packet, and if the packet is a link switching packet, extracts the packet to carry Link failure status information and link port information (S201); and in the case where the failure status indicated by the link failure status information is the allowable handover status, the network processor selects the target switching port according to the priority in the handover port database. (S202).
  • the link failure state required for switching various types of data links received by the NP is utilized by utilizing the NP's Operation Management and Maintenance (OAM) module's constructing and packet sending functions.
  • OAM Operation Management and Maintenance
  • the information and link port information informs the microcode module in the form of a message.
  • the microcode module searches for a specific microcode table according to the link fault state information, obtains the link switching operation information that should be taken, and forwards the packet according to the obtained link switching operation information.
  • the OAM module forwards the received packet to the microcode module of the NP.
  • the microcode module parses the message to obtain various link fault state information and link port information for performing a link switching operation.
  • the microcode module searches for a specific microcode table (for example, a link switching information table) according to link fault state information and link port information to obtain a link cut for performing Change the operation information of the operation.
  • the microcode module performs corresponding processing on the packet that needs to change the forwarding path according to the operation information obtained by searching the link switching information table, so that the packet is not forwarded to the Forwarding Information Base (FIB) table.
  • the determined port is forwarded to the port obtained by looking up the link switch information table.
  • FIB Forwarding Information Base
  • the microcode module parses the packet sent by the OAM module.
  • the microcode module can process multiple types of packets sent by the OAM module, for example, MAC aging or fast aging packets, 1588 packets, and the like.
  • the type of the packet can be distinguished by a specific field in the header of the customized packet. Different types of packets can correspond to different parsing methods and processing codes.
  • the microcode code for implementing the link switching function is executed when the microcode module receives the link switch message.
  • the microcode module may further determine whether the header of the message is a fixed length header or a variable length header. . If it is a fixed-length header, the number of times the operation of finding the link switching information table needs to be performed is determined according to the number of link failure state information types included in the header; if it is a variable-length header, it will be reported. Copy multiple copies and perform loopback processing.
  • the link switch operation switch table needs to be searched to determine whether to perform the link corresponding to the current link fault state information. Road switching operation. If the link switching operation corresponding to the current link failure status information is forbidden, the microcode module directly exits the relevant processing flow, and does not actually perform any link switching operation. If the link switching operation corresponding to the current link failure state information is allowed to be performed, the microcode module continues to perform the related operations of the link switching process.
  • the microcode module searches for the link switching information table according to the obtained link fault state information
  • multiple optional link switching operations may be simultaneously obtained. For example, when port A cannot forward packets due to passive or active reasons, you can choose to switch the forwarding of packets to port B or switch to port C. At this time, it is necessary to determine the link switching operation to be actually performed according to the priority of each optional link switching operation. The link switching operation with the highest priority can be selected as the link switching operation to be actually performed next.
  • the priority of the link switching operation may be a result calculated by a function including two factors.
  • One factor is the default priority of the link switching operation. The higher the default priority of the link switching operation, the higher the final priority calculated by the link switching operation through the function.
  • Another factor is the number of times the link switching operation is performed within a fixed time interval (i.e., unit time), and the more the number of executions, the lower the final priority calculated by the function.
  • a value can be set as a priority for the link switching operation.
  • the value set can be a fixed value, ie the default priority of the link switch operation.
  • the set value may vary (eg, periodically) depending on the port processing capabilities to be switched.
  • the value set when the port processing capability to be switched is increased can be increased, and the value set when the port processing capability to be switched is lowered can be reduced.
  • the port to be switched having the largest set value can be selected as the target switch port, that is, the link switch operation having the highest priority can be selected as the link switch operation to be actually performed next.
  • the NP performs handover forwarding according to the obtained link failure state information and link port information.
  • the packet is actually forwarded to the port, and finally the link switching operation is implemented.
  • the destination port ie, the faulty port
  • the affected packet can be forwarded without waiting for a large number of MAC address synchronization operations of the boards in the distributed system to be completed. Switching to the new destination port quickly, which enables fast switching of the destination port for packet forwarding without significantly changing the general processing flow of Layer 2 packets. Therefore, while ensuring reliability, the performance of data link switching in a distributed system is effectively improved.
  • FIG. 3 is a schematic block diagram of a data link switching device in accordance with an embodiment of the present invention.
  • the data link switching device 300 may be The collection module 31, the encapsulation module 32, and the transmission module 33 are included.
  • the collection module 31 is configured to collect fault status information and link port information.
  • the encapsulation module 32 is configured to encapsulate the fault state information and the link port information into a link switch message.
  • the sending module 33 is configured to send the link switch message to the network processor.
  • FIG. 4 is a schematic block diagram of a data link switching device in accordance with another embodiment of the present invention.
  • the data link switching apparatus 400 may include a receiving module 41, a selecting module 42, and a switching module 43.
  • the receiving module 41 is configured to receive the packet, and if the packet is a link switching packet, extract the link fault status information and the link port information carried in the packet.
  • the selection module 42 selects the target handover port according to the priority in the handover port database.
  • the switching module 43 is configured to switch the forwarding function of the port (ie, the faulty port) to which the link port information is directed to the target switching port selected by the selection module 42.
  • a data link switching device comprising a network processor and a central processing unit.
  • the central processor is configured to collect link fault status information and link port information of the faulty port, and send a link switch message including link fault status information and link port information to the network processor.
  • the network processor is configured to receive the packet sent by the central processing unit, and extract the link fault status information and the link port information carried in the packet when the packet is a link switching message.
  • the target switch port is selected according to the priority in the switch port database, and the forwarding function of the port (ie, the fault port) pointed to by the link port information is switched to The target switches the port.
  • a data link switching method, a data link switching device, and a data link switching device according to an embodiment of the present invention are further described in detail below with reference to the accompanying drawings.
  • a distributed OLT device may include multiple main control boards, uplink cards, passive optical network cards, and subscriber line cards.
  • 5 is a schematic block diagram of a network processor based line card in accordance with an embodiment of the present invention.
  • the network processor-based line card 500 may include a CPU chip 501 and an NP chip 502.
  • the NP chip 502 can include an OAM module Block 5021 and microcode module 5022.
  • the microcode module 5022 can include a microcode link switching information parsing module 5022_1 and a microcode link switching operation execution module 5022_2.
  • the microcode link switching information table (swap_info_table), the link switching function switch table (swap_enable_table), and the link switching port of the line card 500 may be according to specific application scenarios and functional requirements.
  • the conversion table (swap_port_convert_table) is configured.
  • FIG. 6 is a schematic diagram of a link switching port conversion table (swap_port_convert_table) according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a link switching function switch table (swap_enable_table) according to an embodiment of the present invention
  • FIG. 8 is a diagram according to the present invention.
  • various possible link fault state information may be used (ie, optical network unit signal loss, port not established link, continuity check abnormality, two-way The forwarding detection fails.
  • the combination is used as a table lookup index.
  • the link switching operation to be performed in a specific link switching state environment is specified (the main content is the purpose for which the message should be sent after switching).
  • Port information (swap_port_id)).
  • the link switching function switch table (swap_enable_table) shown in FIG. 7 is used as a table lookup index in the table of the link switching operation type (swap_type) field in the analysis result of the link switching message shown in FIG. 9 to be described below.
  • the entry can record the enabled state of this type of link switch operation. For the most comprehensive OLT devices, all types of link switching operations are enabled.
  • the link switch port conversion table (swap_port_convert_table) shown in FIG. 6 uses the port type (port_type) and the port identity (port_id) as a lookup table index, and the entries in the table record the port and link switching operations before the link switching operation. Correspondence between ports. It should be appreciated that the port described herein may be a physical port of a general subscriber line card or a virtual port (vport) of a passive optical network line card. At the beginning of system power-on, the look-up table result of this table should be consistent with the look-up table index to indicate that there is no link switching process for the data link.
  • the optical network unit When the hardware of the distributed OLT system detects that the port does not establish a link, the optical network unit When the signal is lost, the continuity check is abnormal, or the link failure status information of the two-way forwarding detection fails, the abnormal conditions are reported to the CPU as interrupt information.
  • the CPU can make a link switch decision after receiving the interrupt information. On the one hand, it immediately starts the long-time MAC address synchronization operation, transfers all the MAC addresses learned on the problem port to the new alternate port and notifies all the cards in the distributed system to update the MAC address information.
  • the link failure state information of the port not establishing the link, the optical network unit signal loss, the continuity check abnormality or the bidirectional forwarding detection failure is encapsulated into the link switching information header, and a type is generated to include the Link switch message of the link switch information header.
  • FIG. 9 is a schematic diagram of a link switch message in accordance with an embodiment of the present invention.
  • the message is sent to the microcode module 5022 for processing by calling the packet sending interface of the OAM module 5021 of the NP chip 502.
  • the link switching information header is encapsulated according to the abnormal information, if there are two types of link fault status information belonging to different types (such as the port unchained and the bidirectional forwarding detection failure signal), Then, the two can be encapsulated into the same link switching information header, and a fixed length link switching message is sent to the microcode module 5022 through the OAM module 5021.
  • the OAM module 5021 sends a plurality of fixed-length link switching messages to the microcode module 5022 for parsing and processing.
  • the value of the info_num field in the link switching information header is 0.
  • a plurality of (for example, no more than 5) link failure state information is encapsulated into the same link switching information header, and a variable length message is sent to the microcode through the OAM module 5021.
  • Module 5022 processes that the value of the info_num field in the link switch information header is equal to the number of encapsulated link failure state information.
  • the microcode module 5022 After receiving the packet sent by the OAM module 5021, the microcode module 5022 first checks the func_type field of the packet to check whether the packet is a link switch message. If it is determined to be a link switch message, the link is executed. Switch the parsing program of the message. In the parsing procedure of the link switch packet, check whether the info_num field of the packet is 0. If the info_num field is 0, it is regarded as a fixed-length link switch packet without any packet copy and loopback processing. If the info_num field is not 0 and greater than 1, then follow The value of the info_num field copies multiple fixed-length link switch messages (where each link switch message carries only one link fault status information) and performs loopback processing.
  • Each packet triggers the processing of a fixed-length link switch message.
  • the subsequent processing manner of the microcode module 5022 is the same regardless of the fixed length link switching message sent by the OAM module 5021 or the fixed length link switching message after the loopback processing by the microcode module 5022. .
  • the microcode module 5022 may enter the link switch operation execution phase. At this time, the microcode module 5022 can use the swap_type field in the swap_info_1 as an index to find the link switching function switch table (swap_enable_table) shown in FIG. 7, and confirm whether the link switching operation of this type is enabled in the current system. If not enabled, the link switching procedure is exited directly. On the other hand, after confirming that the link switching operation of the type is enabled, the link fault status information may be used as a lookup table index to find the microcode link switching information table (swap_info_table) shown in FIG. 8 according to the setting.
  • the link fault status information may be used as a lookup table index to find the microcode link switching information table (swap_info_table) shown in FIG. 8 according to the setting.
  • the policy obtains the link switch operation information (swap_info) that should be executed under the current situation, and includes information such as the port type (port_type) and port identity (port_id) of the destination port of the link switch.
  • the microcode module 5022 uses the port type (old_port_type) and the port identity (old_port_id) of the destination port before the switching as the index according to the obtained link switching operation information swap_info, and the port type (new_port_type) of the target switching port after the switching.
  • the link switch port translation table (swap_port_convert_table) shown in FIG. 6 is set, thereby completing the specific execution of the link switching operation.
  • the microcode module 5022 needs to find the link switch function switch table (swap_enable_table) and the link switch information table (swap_info_table) again, and switch the port switch table to the link according to the result of the lookup table (swap_port_convert_table). ) Make the appropriate settings.
  • the data link switching method can implement various abnormal scenarios such as a port not establishing a link, an optical network unit signal loss, a continuity check abnormality, and a bidirectional forwarding detection failure on a general NP.
  • the method of the invention realizes the data link by using the OAM module and the microcode module shared by the general NP Fast switching of the road.
  • the data link switching method has a great advantage in the reliability and efficiency of handover.
  • the time required for the handover of the data link switching method according to the embodiment of the present invention mainly depends on the detection reporting speed of the NP for various abnormal conditions requiring handover processing.
  • the data link switching method according to an embodiment of the present invention can significantly reduce the time required for data link switching, and greatly reduce the handover process.
  • the number of lost packets According to various data link switching methods in various abnormal situations, according to the data link switching method of the embodiment of the present invention, various link switching scenarios can be uniformly processed to avoid logical conflicts and significantly reduce distributed OLT. The average packet loss time and number of lost packets required to perform data link switching in the system.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the embodiment of the present invention uses the NP widely used in the OLT device to utilize the packet aging and packet sending function of the NP OAM module to link the link fault state information required for the various types of data link received by the NP. And the link port information informs the microcode module in the form of a message.
  • the microcode module searches for a specific microcode table (for example, a link switching information table) according to the link fault state information, obtains the link switching operation information that should be taken, and performs the packet according to the obtained link switching operation information. Forward processing.
  • the embodiment of the invention provides a fast and stable data link switching method applicable to multiple fault scenarios, thereby solving the problem that the device bandwidth utilization is not high, the design is complicated, and the universality is low during the data link switching process. At least one of technical problems such as differentiating processing for multiple fault conditions is not possible.

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Abstract

La présente invention concerne un procédé de commutation de liaison de données, un appareil de commutation de liaison de données et un dispositif de commutation de liaison de données. Le procédé de commutation de liaison de données consiste : à collecter des informations d'état de défaillance de liaison et des informations de port de liaison au moyen d'une unité centrale de traitement ; au moyen de ladite unité centrale de traitement, à encapsuler lesdites informations d'état de défaillance de liaison et les informations de port de liaison dans un message de commutation de liaison et à envoyer celles-ci à un processeur de réseau. Le message de commutation de liaison est destiné à ordonner au processeur de réseau d'effectuer un basculement de liaison. Figure 1
PCT/CN2017/116457 2016-12-15 2017-12-15 Procédé et appareil de commutation de liaison de données et dispositif de commutation de liaison de données WO2018108149A1 (fr)

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CN114205263A (zh) * 2021-12-08 2022-03-18 中国信息通信研究院 用于Ether CAT网络的通信方法、系统和存储介质

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* Cited by examiner, † Cited by third party
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101860492A (zh) * 2010-06-28 2010-10-13 中兴通讯股份有限公司 快速切换的方法、装置和系统
CN102857419A (zh) * 2012-10-12 2013-01-02 华为技术有限公司 链路聚合端口故障的处理方法和装置
CN105281927A (zh) * 2014-05-28 2016-01-27 中兴通讯股份有限公司 多链路保护倒换的方法及装置
CN105871674A (zh) * 2015-01-23 2016-08-17 华为技术有限公司 环保护链路故障保护方法、设备及系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006180162A (ja) * 2004-12-22 2006-07-06 Nec Corp パケット交換装置およびパケット交換方法
CN101126997B (zh) * 2007-09-26 2010-06-16 中兴通讯股份有限公司 一种网络处理器微引擎活性检测的方法
CN101277269A (zh) * 2008-05-06 2008-10-01 杭州华三通信技术有限公司 实现可靠通信的终端、终端切换方法及系统和适用该系统的方法
WO2010082290A1 (fr) * 2009-01-13 2010-07-22 株式会社日立製作所 Système de communication, appareil s'adaptant à un abonné et procédé de communication
US8654630B2 (en) * 2010-03-19 2014-02-18 Brocade Communications Systems, Inc. Techniques for link redundancy in layer 2 networks
CN102368722B (zh) * 2011-12-01 2013-06-05 盛科网络（苏州）有限公司 以太网环网保护中快速切换的芯片实现方法及系统
CN102420768A (zh) * 2011-12-15 2012-04-18 北京星网锐捷网络技术有限公司 链路切换方法及装置、数据传输方法及装置、网络设备
WO2013155675A1 (fr) * 2012-04-18 2013-10-24 Telefonaktiebolaget L M Ericsson (Publ) Système et procédé d'envoi de paquets oam sur des chemins de redondance
CN103036716B (zh) * 2012-12-12 2018-06-22 中兴通讯股份有限公司 链路切换方法及系统
CN103200048B (zh) * 2013-04-02 2018-07-13 中兴通讯股份有限公司 一种网络处理器异常检测方法、装置及网络处理设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101860492A (zh) * 2010-06-28 2010-10-13 中兴通讯股份有限公司 快速切换的方法、装置和系统
CN102857419A (zh) * 2012-10-12 2013-01-02 华为技术有限公司 链路聚合端口故障的处理方法和装置
CN105281927A (zh) * 2014-05-28 2016-01-27 中兴通讯股份有限公司 多链路保护倒换的方法及装置
CN105871674A (zh) * 2015-01-23 2016-08-17 华为技术有限公司 环保护链路故障保护方法、设备及系统

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111277440A (zh) * 2020-01-20 2020-06-12 新华三信息安全技术有限公司 网络设备
CN111277440B (zh) * 2020-01-20 2022-04-08 新华三信息安全技术有限公司 网络设备
CN112383471A (zh) * 2020-10-30 2021-02-19 新华三信息技术有限公司 一种刀箱链路管理方法、装置、设备及机器可读存储介质
CN113852547A (zh) * 2021-09-10 2021-12-28 锐捷网络股份有限公司 一种报文转发方法、装置、线卡及存储介质
CN113852547B (zh) * 2021-09-10 2023-07-25 锐捷网络股份有限公司 一种报文转发方法、装置、线卡及存储介质
CN113784411A (zh) * 2021-09-13 2021-12-10 展讯通信（上海）有限公司 链路质量评估方法、链路切换方法、设备和存储介质
CN114205263A (zh) * 2021-12-08 2022-03-18 中国信息通信研究院 用于Ether CAT网络的通信方法、系统和存储介质
CN114205263B (zh) * 2021-12-08 2023-10-13 中国信息通信研究院 用于Ether CAT网络的通信方法、系统和存储介质

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