CN101257405A - Method for implementing double chain circuits among master-salve equipments - Google Patents

Method for implementing double chain circuits among master-salve equipments Download PDF

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CN101257405A
CN101257405A CN 200810089598 CN200810089598A CN101257405A CN 101257405 A CN101257405 A CN 101257405A CN 200810089598 CN200810089598 CN 200810089598 CN 200810089598 A CN200810089598 A CN 200810089598A CN 101257405 A CN101257405 A CN 101257405A
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link
device
master
default
connection
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CN 200810089598
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CN101257405B (en )
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铭 慈
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中兴通讯股份有限公司
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A method for achieving double link between a master device and a slave device is disclosed in the invention, comprising the following steps of: setting configuration data for a default link on the master device and the slave device; while starting, establishing a default connecting link in a control path between the master device and the slave device based on the configuration data for the default link; after the default connecting link is established normally, assigning the connecting configuration data of a reserve link onto the slave device from the master device via the default connecting link. Therefore, while in the event of the failure of the control link, the communication path between the master device and the slave device can be effectively protected by the technical proposal of the invention, accordingly, the protection of the control link is achieved.

Description

主/人i殳备间双《连路的实现方法技术领域本发明涉及一种主从设备间控制通道的保护技术,具体说,涉及一种主从设备间双链路的实现方法。 Main / people between devices i Shu double "way to achieve even TECHNICAL FIELD The present invention relates to a main control channel from among protection technology apparatus, in particular, to a method of realization of the main link between the dual device. 背景技术在通信设备中,现有主从设备、单板和主控板之间的链接是单链路方式的居多。 Background Art In communication devices, existing between the master and slave devices, boards and MPU links are mostly single link mode. 重要的通信设备的主从设备间的控制通道需要有双链路的主备保护机制,这样才可以保证在某一条链路出错的情况下,另一链路可以接管后继续工作,设备可以继续正常运行。 Important primary communication device from the control channel between the devices need to have dual standby link protection mechanism, so that it can guarantee a certain link in the case of an error, can take over another link to continue working, the device may continue normal operation. 主从设备之间通路控制可以采用高级数据链路控制协议(HDLC High-Levd Data Link Control)、以太网等多种连接方式,在必要的情况下还可以采用混用方式。 From the main passage between the control device may employ a high-level data link control protocol (HDLC High-Levd Data Link Control), Ethernet and other connections, in the necessary manner may be employed also mixed. 但是现在使用的各种协议本身不能提供双链路控制,无法实现设备的控制通路主备的保护;或者,实现双链路保护时主从设备间配置数据设置繁琐,必须在主从设备上同时设置数据。 However, the various protocols now in itself does not provide a dual-link control channel can not achieve the protection control standby device; or to achieve dual link protection between the device configuration data from the master complicated settings, you must be in the master and slave devices setting data. 由于现有技术存在上述缺陷,发明内容本发明要解决的技术问题是提供一种主从设备间双链路的实现方法,当控制链路出现故障时,能有效地保护主从设备之间的通信通路,实现对控制链^各保护。 Because of the above drawbacks of the prior art, SUMMARY OF INVENTION Problems to be solved by the present invention is to provide a master-slave method between devices implement a dual-link, when the control link failure, can effectively protect between master and slave devices communication path, to achieve control of ^ each chain protection. 技术方案如下:一种主从设备间双链i?各的实现方法,包括以下步骤:(1) 在主控设备和从属设备上设置默认链路配置数据;(2) 启动时,在所述主从设备之间的控制通路中才艮据所述默认链i?各配置数据建立默认链接链路;(3)当所述默认链接链路正常建立后,所述主控设备通过所述默认链接链路将备用链路的连接配置数据下发到所述从属设备上。 Technical solutions as follows: A double stranded i between master and slave devices each implemented method, comprising the steps of:? (1) Set the default link configuration data on the master and slave device; (2) starts, the control path between the master and slave devices only according to the default link i Gen each of the links to establish a default configuration data;? (3) when the link is a default link is established, the master device via the default of the links will be sent to the slave device on the spare link connection configuration data. 进一步,步骤(l)中,所述默认链路配置数据包括不同连接方式下的默认配置数据,具体包括:连接时隙位置、采用时钟方式、路由以及建立链^^不成功的切换时间。 Further, the step (l), the default data comprises the default configuration link configuration data at different connection comprises: connecting slot position, with a clock mode, and establishing routing chain ^^ unsuccessful switching time. 进一步,步骤(2)中,所述默认链接链路的连接方式包括:以太网连接方式,或者高级数据链路控制协议HDLC链路连接方式。 Further, the step (2), the default link connection link comprising: an Ethernet connection, or a high-level data link control HDLC link connection. 进一步,所述以太网连接方式根据二层路由方式或三层路由方式进行分类;以及所述HDLC链路连接方式根据速率、端口或上层协议类型进行组合分类。 Further, the Ethernet connection are classified according to Layer 2 routing or routing mode; HDLC link connection and the combination according to the classification rate, port, or the upper layer protocol type. 进一步,步骤(2)中,所述默认链接链路的连接方式至少为两种;在启动默认链接链路过程中,通过轮询方式不断4全测各种连接方式下的所述默认链接链路是否能够链接成功;如果链接不成功,进行连接方式切换,直到默认链接链路能够成功建立。 Further, the step (2), the default of the links of at least two kinds of connections; in the default startup process of the links, by continuously polling the 4 measured under various default full connection chain link whether the road can be linked successfully; if the link is not successful, the connection mode switching, until the default of the links can be set up. 进一步,步骤(3)中,在所述主从设备正常工作过程中,所述默认链4妄链路作为主用链路;如果4全测到所述主用链路故障,4艮据所述备用链路的连接配置数据进行主备链路切换,将主用链路禁用,将备用链路使能。 Further, step (3), the master device from the normal operation, the default jump to 4 chain link as the primary link; 4 if the measured full primary link fails, according to the Gen 4 said connection configuration data backup link is active and standby switching link, the main link is disabled, enabling the standby link. 进一步,步骤(3)中,在所述检测过程中,如果检测到主用链路物理连接断开,立刻进行主备链路切换。 Further, step (3), in the detection process, if the active link is detected physical disconnection, handover performed immediately standby link. 进一步,步骤(3)中,在所述检测过程中,通过检测控制通路中的端口物理状态来确定主用链路物理连接是否断开。 Further, step (3), in the detection process, by detecting a physical status is determined via the main link control the physical connection is disconnected. 进一步,步骤(3)中,在所述检测过程中,所述主控设备和从属设备之间通过逻辑检测方式^r测所述控制通路是否正常,所述从属设备每隔N 秒发送心跳消息给所述主控设备;如果所述主控设备连续M次收不到所述从属设备的心跳消息,进行主从链路切换,其中,M、 N是配置参数。 Further, step (3), in the detection process, between the master and slave device by detecting a logical manner ^ r sensing the control channel is normal, the slave device sends a heartbeat message every N seconds to the master device; if the master device M consecutive times not receive a heartbeat message of the slave device, for switching from the master link, wherein, M, N is a configuration parameter. 进一步,步骤(3)中,在所述主备链路切换过程中,主备切换通过所述主控设备或者从属设备发起;当所述主控设备发起主备切换时,所述主控设备发送切换命令到所述从属设备,所述主控设备和从属设备根据所述备用链路的连接配置数据进行主备链路切换;当主备切换通过所述从属设备发起时,所述主控设备为控制方,所述从属设备发送切换请求到所述主控设备, 所述主控设备再发切换命令到所述从属设备,所述主控设备和从属设备根据所述备用链路的连接配置数据进行主备链路切换。 Further, step (3), the standby link in the handover process, the switchover by the master device or a slave device initiates; when the master device to initiate standby switching, the master device sending a handover command to the slave device, the master device and slave devices according to the connection standby link switchover the standby link configuration data; when the standby switching initiated by the slave device, the master device is the controlling party the slave device transmits a handover request to the master device, the master device then send a handover command to the slave device, the master device and slave devices connected to the standby link is configured in accordance with standby data link switching. 进一步,步骤(3)中,在所述主备链路切换过程中,可以通过人工倒换进行主备链路切换。 Further, step (3), the standby link in a handover procedure, switching may be performed by manual standby link switching. 本发明连接和切换速度快,设置简单,不需要在主从设备进行链接时再去从设备上配置连接数据, 一旦通信异常时,马上自动进行主从链路的切换。 The present invention is connected to and fast switching speed, simple to set up, does not need to go to configuration data from the device connected to the main link from the device, once communication abnormality, automatically and immediately switching from the primary link. 因此,当控制链路出现故障时,本发明能有效地保护主从设备之间的通信通路,从而实现对控制链路保护。 Thus, when the control link failure, the present invention can effectively protect the main device from the communication path between, in order to achieve protection of the control link. 采用这种预先配置链路链接方式,不需要施工人员在设备重启后重新配置数据,可以使主从设备建立链路后正常工作,大大节省了人力物力,降低了运营成本。 With this pre-configured link linking, construction workers do not need to reconfigure the data after reboot, allows the master to work to establish a link from the device, significant savings in manpower and resources, reduce operating costs. 附图说明图1是是主控设备和从属设备之间的组网图。 BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram between the networking for the master and slave device. 具体实施方式本发明通过在主从设备(包括主控设备和从属设备)之间的控制通路上设定主用链路和备用链路,实现了两条控制链路的主备用双链路保护,对通信设备中主从设备控制通路进行主备保护,不管是主备用链路出现问题还是二层(数据链路层)或者三层(网络层)的出现问题,控制通路都可以从当前主用链路切换到备用链路,保证主从设备控制通路正常。 DETAILED DESCRIPTION The present invention is set by the main primary link and a secondary link between a path from the control device (including a master and slave device), to achieve the two control links primary spare link protection bis , communication apparatus master-standby protection path from the control device, or whether the problem layer (data link layer) or layer 3 (network layer) of the primary backup link problem occurs, the control current from the main passage can be of link to the standby link switching, to ensure that the master device from the normal control channel. 下面以接入媒体网关为例,对主从设备之间控制通路的双链路主备保护做详细说明。 Access Gateway below to an example, for double-link master from the master control path between the standby protection apparatus described in detail. 第一,主从设备之间的连接方式。 First, the main connection between the devices. 主从设备之间连接方式可以是各种方式,比如以太网或者HDLC等,的主从链路也可以采用不同的连接方式,主控设备通过控制通路对从属设备进行系统控制和业务控制。 Connection between the master and slave devices may be a variety of ways, such as Ethernet or the like HDLC, the primary link may be different from the connections, master control system and operational control of the slave device through the control channel. 其中,以太网连接方式可根据二层路由方式或三层路由方式进行分类; HDLC链路连接方式可根据速率、端口或上层协议类型进行组合分类。 Wherein, the Ethernet connection may be classified according to the Layer three routing or routing mode; the HDLC link connection may be classified according to a combination of the rate, or the upper layer protocol port type. 第二,主从设备间双链路的实现方法。 Second, the main implementation dual link between the devices. 主从设备的控制通路中,其链路中必须有一条是启动默认链接链路,以保证主从设备在物理连接正常后,可以自动启动链路建立过程,使链接能正常建立。 From the main control path in the device, there must be a link which is the default start of the links, to ensure that the master device from the normal physical connections, link establishment procedure can be started automatically, so that the link can be set up. 如果没有这个默认通信链路,主控设备就不能在从属设备上自动建立链接成功。 If there is no default communication link, the master device can not automatically create links success in the slave device. 具体实现步骤如下:1 、在主从设备上预设置支持多种连接方式的默认链路配置数据。 Specific steps are as follows: 1, supports a variety of preset default link connection configuration data from the master device. 2、 系统重启后,在主从设备之间的控制通路中,根据默认链路配置数据启动默认链接链路。 2, the system is restarted, in the main, from the start default link control path link between a link device according to a default configuration data. 在启动默认链接链路过程中,通过轮询方式不断4企测默认《连路是否链接成功;如果链接不成功,进行连接方式切换,直到默认链接链路能够成功建立。 The default startup of the links during polling by constantly measuring half 4 Default "even if the road link is successful; if the link is unsuccessful, the connection mode switching until the default of the links can be successfully established. 3、 当默认链接链路正常建立后,主控设备可以通过主从设备之间的默认链接链路将备用链路的连接配置数据下发到从属设备上。 3, when the link is a default link is established, the master device may default link from the master link between the slave device will be sent to the connected device configuration data backup link. 在主从设备正常工作过程中,该默认链接链路作为主用链路;如果检测到主用链路故障则需要主备链路切换,主控设备和从属设备根据备用链路的连接配置数据进行主备链路切换,将原来的主用链路禁用,将备用链路使能。 The master and slave devices during normal operation, the default of the links as the primary link; If a link failure is detected by the primary standby link switching is required, the master and slave device configuration data according to the connection of spare links AMB link switchover, the original primary link is disabled, enabling the standby link. 这个过程中主控设备和从属设备都可以发起主备切换,主控设备为控制方。 This process, the master and slave device can initiate the switchover, the master device is the controlling party. 主控设备发起切换时,直接发切换命令到从属设备,主控设备和从属设备根据备用链路的连接配置数据进行主备链路切换;从属设备发起切换时,发切换请求到主控设备,主控设备再发切换命令到从属设备,主控设备和从属设备根据备用链路的连接配置数据进行主备链路切换。 When the master device to initiate a handover, the handover command sent directly to the slave device, the master and slave devices according to the connection standby link switchover configuration data backup link; the slave device initiates a handover, the handover request sent to the master device, then the master device send a handover command to a slave device, the master and slave devices according to the connection standby link switchover configuration data backup link. 当然,可以通过人工倒换实现主备链路的切换。 Of course, the switching can be achieved through manual standby link switching. 的主用链路物理连接断开,立刻进行主备链路切换流程。 Primary link disconnect the physical connection, a standby link handover procedure immediately. 主控设备和从属设备之间通过逻辑检测控制通路是否正常。 By between the master and slave device path detection control logic is normal. 从属设备每隔N秒发心跳消息给主控设备,如果主控设备连续M次收不到从属设备的心跳消息,进行主从链路切换,其中,M、 N是配置参数,可以配置。 Every N seconds slave device to the master device send a heartbeat message, if the master can not continuously receive a heartbeat message of the slave device M times, for switching from the master link, wherein, M, N is a configuration parameter that can be configured. 逻辑检测可以不选择,但是控制通路中的端口物理状态检测是必选。 Detection logic may not be selected, the physical state detection control port passage is mandatory. 下面结合附图,通过具体实例对本发明做进一步详细描述。 DRAWINGS through specific examples further detailed description of the invention. 如图l所示,是主控设备和从属设备之间的组网图,其中,主控设备与从属设备控制通路的通信方式有多种,在主从设备之间每一种连接方式都有连接配置数据。 As shown in FIG. L, is a networking diagram between a master device and slave devices, wherein there are multiple master device and the slave device controls the communication path, from each of the main connection between the device has connection configuration data. 在设备重启以后,主从是采取的服务器-客户端模式,从属设备在各种连接方式轮询进行默认链路建立,建立链接成功后,主设备将备用链路数据配置到从设备上。 After reboot, the server is taken from the master - the client mode, the slave device in a variety of connections polling default link is established, the successful establishment of a link, the master device will configure alternate links to the data from the device. 在主从设备之间有两条链路,链3各一和链路二,其中,链路一是默认链接链路,即主用链路。 From the main there are two links, each link 3 and a link between the two devices, wherein one default link of the links, i.e., the active link. 链路一根据不同连接方式(示例为4种连接方式)预配置不同形式的默认链路数据,即默认链路1至4,在启动默认链接链路过程中,轮询检测默认链路1至4,若成功则建立链接,若不成功则进行切换, 直至默认链路链接成功。 Link different forms of a pre-configured (exemplified by four kinds of connections) depending on the data link connection default, default link 1 to 4, i.e., the default startup process of the links, a link to the default polling detection 4, if successful establishment of the link, if successful, to switch, until the default link link success. 链路二是备用链路,也是进行人工倒换用的链接链路。 Second link backup link is used for manual switching of the links. 如果主用链路故障,主从链路可以通过链路二中的可配置链接方式进行人工倒换。 If the active link fails, the main link can be manually switched through the two way link can be configured from link. 本实施例中,主从设备采用HDLC链路连接方式,HDLC链路可以配置在2M的PCM( Pulse Code Modulation,脉码调制)和16M的HW( High Way, 高速信号线)上,PCM和HW在此用来表示传输容量。 In this embodiment, master and slave devices use HDLC link connection, HDLC link may be disposed on the 2M PCM (Pulse Code Modulation, Pulse Code Modulation) and 16M of the HW (High Way, high speed signal), and the PCM HW It used herein to mean transmission capacity. 首先,在主从设备中预先分别配置这两种连接方式下的HDLC链路默认配置数据。 First, HDLC link are disposed in advance in the main apparatus from the connection of these two default configuration data. HDLC链路默认配置数据包括:连接时隙位置、采用时钟方式、 路由和建立链路不成功的切换时间等。 HDLC link default configuration data comprises: connecting slot position, with a clock mode, and establishing a link routing an unsuccessful switching time and the like. 接下来,当系统重新启动后,主人设备之间首先尝试采用2M的PCM 默认配置数据方式下进行HDLC建链过程;如果在规定时间内没有成功, 就切换到采用16M的HW默认配置数据下进行HDLC建链过程;如果在规定的切换时间内还是没有连接成功,就切换回2M的PCM的默认配置下继续链接。 Subsequently, when the system is restarted, the first attempts to use the default configuration PCM 2M manner HDLC data link establishment procedure between the master device; if not successful within a predetermined time, switches to use the HW 16M for the default configuration data HDLC link setup process; if within a specified time or to switch the connection did not succeed, continue to switch back to 2M link under the default configuration of the PCM. 这两种方式可以反复切换,直到HDLC链路链接成功。 Both methods can be switched repeatedly, until the HDLC link link success.

最后,HDLC建链成功后,可以通过该HDLC链路将备用链路的连接配置数据发送到备用设备,使从属设备按照该连接配置数据的进行配置,以备将来主从链路切换。 Finally, after a successful link establishment HDLC, may be transmitted by the HDLC data link connection configuration standby link to the standby device, the slave device configuration in accordance with configuration data for the connection, the master is switched from the future link.

Claims (10)

  1. 1. 一种主从设备间双链路的实现方法,其特征在于,包括以下步骤: (1)在主控设备和从属设备上设置默认链路配置数据; (2)启动时,在所述主从设备之间的控制通路中根据所述默认链路配置数据建立默认链接链路; (3)当所述默认链接链路正常建立后,所述主控设备通过所述默认链接链路将备用链路的连接配置数据下发到所述从属设备上。 A master-slave method between devices implement a dual-link, characterized by comprising the steps of: (1) Set the default link configuration data on the master and slave device; (2) starts, the the main link is the link to establish a default configuration data from the default control path link between the device; (3) when the link is a default link is established, the master device via the default link link the connection configuration data sent to the backup link is the slave device.
  2. 2、 如权利要求1所述的主从设备间双链路的实现方法,其特征在于, 步骤(l)中,所述默认链路配置数据包括所述默认链接链路在不同连接方式下的默认配置数据,具体包括:连接时隙位置、采用时钟方式、路由以及建立链;f各不成功的切换时间。 2, as claimed in claim 1, said main apparatus from between a dual-link implemented method, wherein the step (l), the default data comprises the default link configuration of the links in different connectors default configuration data, comprises: connector slot position, with a clock mode, and establishing routing chain; F each unsuccessful switching time.
  3. 3、 如权利要求1所述的主从设备间双链路的实现方法,其特征在于, 步骤(2)中,所述默认链接链路的连接方式包括:以太网连接方式,或者高级数据链路控制协议HDLC链路连接方式。 3, as claimed in claim 1, said main apparatus from between a dual-link implemented method, wherein, in step (2), the default link connection link comprising: an Ethernet connection, or a high-level data link HDLC channel link control protocol connection.
  4. 4、 如权利要求3所述的主从设备间双链路的实现方法,其特征在于, 所述以太网连接方式进一步根据二层路由方式或三层路由方式进行分类;以及所述HDLC链路连接方式进一步根据速率、端口或上层协议类型进行组合分类。 And the HDLC link; 4, as claimed in claim 3, said master apparatus from among the dual-link implemented method, wherein the Ethernet connection is further classified according to the embodiment 2 routing or routing Layer connection composition further classified according to the rate, or the upper layer protocol port type.
  5. 5、 如权利要求1至4中任一项所述的主从设备间双链路的实现方法, 其特征在于,步骤(2)中,所述默认链接链路的连接方式至少为两种;在启动默认链接链路过程中,通过轮询方式不断检测各种连接方式下的所述默认链接链路是否能够链接成功;如果链接不成功,进行连接方式切换,直到默认链接链路能够成功建立。 5, in the main as claimed in any one of claims 1 to 4, from the inter-device implemented method of claim double links, wherein the step (2), the default of the links of at least two kinds of connections; the default startup process of the links, by detecting whether the polling continues to link the default link can be a variety of connections successfully link; if the link is unsuccessful, the connection mode switching until the default of the links can be successfully established .
  6. 6、 如权利要求1所述的主从设备间双链路的实现方法,其特征在于, 步骤(3)中,在所述主从设备正常工作过程中,所述默认链接链路作为主用链路;如果检测到所述主用链路故障,根据所述备用链路的连接配置数据进行主备链路切换,将主用链路禁用,将备用链路使能。 6, as claimed in claim 1, said main apparatus from between a dual-link implemented method, wherein step (3), the master device from the normal operation, the default link as the primary link link; if it is detected the primary link fails, the standby link for switching the connection configuration data according to the standby link, the primary link is disabled, enabling the standby link.
  7. 7、 如权利要求1或6所述的主从设备间双链路的实现方法,其特征在于,步骤(3)中,在所述检测过程中,如果才企测到主用链路物理连接断开, 立刻进^f亍主备《连^各切才奂。 7, or as claimed in the main claim from 1 to 6 double link between the device to implement the method, wherein, in step (3), in the detection process, if only the main link to the enterprises measured physical connection off immediately into the right foot ^ F standby "even before the cut Huan ^.
  8. 8、 如权利要求7所述的主从设备间双链路的实现方法,其特征在于, 步骤(3)中,在所述检测过程中,通过检测控制通路中的端口物理状态来确定主用链路物理连接是否断开。 8, as claimed in claim 7, said master apparatus from among the dual-link implemented method, wherein step (3), in the detection process, the master is determined by the physical port state detector control passage downlink physical connection is disconnected.
  9. 9、 如权利要求6所迷的主从设备间双链路的实现方法,其特征在于, 步骤(3)中,在所述检测过程中,所述主控设备和从属设备之间通过逻辑检测方式检测所述控制通路是否正常,所述从属设备每隔N秒发送心跳消息给所述主控设备;如果所述主控设备连续M次收不到所述从属设备的心跳消息,进行主从链路切换,其中,M、 N是配置参数。 9, as claimed in claim 6 of the main fan from the inter-device implemented method of double-link, wherein the step (3), in the detection process, by the main control logic detects and slave device between the control channel mode detector is normal, the slave device sends a heartbeat message every N seconds to the master device; if the master device M consecutive times not receive a heartbeat message of the slave device, a master-slave link switching, wherein, M, N is a configuration parameter.
  10. 10、 如权利要求6所述的主从设备间双链路的实现方法,其特征在于, 步骤(3)中,在所述主备链路切换过程中,主备切换通过所述主控设备或者从属设备发起;当所述主控设备发起主备切换时,所述主控设备发送切换命令到所述从属设备,所述主控设备和从属设备根据所述备用链路的连接配置数据进行主备链路切换;当主备切换通过所述从属设备发起时,所述主控设备为控制方,所述从属设备发送切换请求到所述主控设备,所述主控设备再发切换命令到所述从属设备,所述主控设备和从属设备根据所述备用链路的连接配置数据进行主备链路切换。 10, as claimed in claim 6 from the main device to implement a method between a dual-link, wherein the step (3), the standby link in the handover process, the switchover by the master device dependent or device-initiated; when the master device initiates switchover master, the master device transmits a handover command to the slave device, the master device and slave devices according to the connection configuration data backup link standby switch link; standby when the handover by the slave device, the master device is the controlling party the slave device transmits a handover request to the master device, the master device then send a handover command to the slave device, the master device and slave devices according to the connection standby link switchover the standby link configuration data.
CN 200810089598 2008-04-03 2008-04-03 Method for implementing double chain circuits among master-salve equipments CN101257405B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101771659A (en) * 2008-11-20 2010-07-07 华为终端有限公司 Method, system and equipment for safe switch configuration
CN102118266A (en) * 2011-01-19 2011-07-06 武汉迈威光电技术有限公司 Industrial Ethernet dual-link redundancy technology
CN103441875A (en) * 2013-08-23 2013-12-11 中国铁道科学研究院 Method for achieving redundant communication of signal centralized monitoring system
CN104052615A (en) * 2013-03-15 2014-09-17 瑞昱半导体股份有限公司 Master-slave detection method and master-salve detection circuit
CN104102559A (en) * 2014-07-16 2014-10-15 浪潮电子信息产业股份有限公司 Redundant heartbeat link and opposite-end restarting link based double-controller storage system
CN104104567A (en) * 2014-08-08 2014-10-15 陈璟东 Networking method, control device and networking system for double communication link
CN104135412A (en) * 2014-07-28 2014-11-05 北京航天自动控制研究所 Serial bus redundant communication method oriented to multi-point Internet application
CN104407947A (en) * 2014-10-29 2015-03-11 中国建设银行股份有限公司 Main/backup NAS (Network attached storage) switching method and device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101771659A (en) * 2008-11-20 2010-07-07 华为终端有限公司 Method, system and equipment for safe switch configuration
CN101771659B (en) 2008-11-20 2013-06-12 华为终端有限公司 Method, system and equipment for safe switch configuration
CN102118266A (en) * 2011-01-19 2011-07-06 武汉迈威光电技术有限公司 Industrial Ethernet dual-link redundancy technology
CN104052615B (en) * 2013-03-15 2017-06-09 瑞昱半导体股份有限公司 And a master from the master detection method from the detection circuit
CN104052615A (en) * 2013-03-15 2014-09-17 瑞昱半导体股份有限公司 Master-slave detection method and master-salve detection circuit
CN103441875A (en) * 2013-08-23 2013-12-11 中国铁道科学研究院 Method for achieving redundant communication of signal centralized monitoring system
CN104102559A (en) * 2014-07-16 2014-10-15 浪潮电子信息产业股份有限公司 Redundant heartbeat link and opposite-end restarting link based double-controller storage system
CN104135412A (en) * 2014-07-28 2014-11-05 北京航天自动控制研究所 Serial bus redundant communication method oriented to multi-point Internet application
CN104135412B (en) * 2014-07-28 2017-07-28 北京航天自动控制研究所 Oriented multi-point serial bus redundant communication method Internet applications
CN104104567A (en) * 2014-08-08 2014-10-15 陈璟东 Networking method, control device and networking system for double communication link
CN104407947A (en) * 2014-10-29 2015-03-11 中国建设银行股份有限公司 Main/backup NAS (Network attached storage) switching method and device
CN104407947B (en) * 2014-10-29 2018-04-27 中国建设银行股份有限公司 Nas standby switching method and apparatus

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