WO2011076046A1

WO2011076046A1 - Method and device for quick primary-standby handover in network devices

Info

Publication number: WO2011076046A1
Application number: PCT/CN2010/078913
Authority: WO
Inventors: 李儆; 焦赵云
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-12-23
Filing date: 2010-11-19
Publication date: 2011-06-30
Also published as: CN101710865A

Abstract

The present invention discloses a device for quick primary-standby handover in network devices, which includes an uplink board and multiple main control boards; the device also includes a multi-path connector, which is configured to connect the uplink board to the multiple main control boards individually, and via which the uplink board transmits the same downlink data to the main control boards, and a logic device, which is configured to judge whether the main control boards are in a primary state or a standby state based on the state signals sent by the main control boards, and control the multi-path connector to receive uplink data sent by the main control board in primary state. The present invention also discloses a method for quick primary-standby handover in network devices. The present invention reduces losses of traffic flow to the greatest extent, and increases the speed of the primary-standby handover.

Description

一种网络设备中主备快速倒换的方法和装置 Method and device for fast switching between active and standby in network equipment

技术领域本发明涉及通讯设备中主备倒换技术，尤其涉及一种通信领域中网络设备的主备快速倒换的方法和装置。 The present invention relates to an active/standby switching technology in a communication device, and more particularly to a method and apparatus for fast switching between active and standby network devices in the communication field.

背景技术在通讯设备中，为了提高设备的可靠性，主控板往往釆用主备机制。而上联板比较简单，不易损坏，一般不釆用主备机制。当主用主控板，也可以称为处于主用状态的主控板（例如，记为 1号主控板）出现故障时，业务控制和业务转发倒换到备用主控板，也可以称为处于备用状态的主控板（例如，记为 2号主控板），而且备用主控板的状态变为主用主控板，原来的主用主控板的状态变为备用主控板。现有设备中，上联板只与主用主控板收发数据 ,与备用主控板是断开的。 ( 1 )上联板上行（主控板到上联板方向 )时，根据***主备指示，上联板只从当前为主用状态的主控板接收数据； ( 2 )上联板下行（从上联板到主控板方向）时，上联板只向当前为主用状态的主控板发送数据。现有技术的缺点在于：在主备倒换的过程中，业务上联从由 1号主控板至上联板切换到 2号主控板至上联板，这个过程中会有较大的数据丟失，上联业务产生中断，导致主备倒换速度较慢。 BACKGROUND In a communication device, in order to improve the reliability of the device, the main control board often uses an active/standby mechanism. The upper board is relatively simple, not easy to damage, and generally does not use the active and standby mechanisms. When the main control board is also called the main control board in the main state (for example, the main control board No. 1), the service control and service forwarding are switched to the standby main control board. The main control board in the standby state (for example, recorded as the main control board No. 2), and the status of the standby main control board becomes the main main control board, and the state of the original main control board becomes the standby main control board. In the existing equipment, the uplink board only sends and receives data to and from the main control board, and is disconnected from the standby main control board. (1) When the upper board is connected to the board (from the main control board to the uplink board), according to the system's active/standby instructions, the uplink board only receives data from the main control board that is currently in the active state; (2) the uplink board is down ( When the board is connected from the uplink board to the main control board, the uplink board only sends data to the main control board that is currently in the active state. The disadvantages of the prior art are: In the process of active/standby switchover, the service uplink is switched from the main control board No. 1 to the uplink board to the main control board No. 2 to the uplink board. In this process, there is a large data loss. The uplink service is interrupted, resulting in slower master/slave switching.

发明内容本发明要解决的技术问题是提供一种网络设备中主备快速倒换的方法和装置，针对现用技术主备倒换时上联业务中断时间较长时，最大限度减少业务流量的丟失，提高主备倒换的速度。为了解决上述技术问题，本发明提供了一种网络设备中主备快速倒换的装置，包括：上联板和多个主控板，所述装置还包括：多路连接器件，其设置为：将所述上联板分别连接至所述多个主控板，所述上联板通过所述多路连接器件向所述主控板发送相同的下行数据；以及逻辑器件，其设置为：根据主控板发出的状态信号判定主控板处于主用状态还是备用状态，并控制所述多路连接器件接收处于主用状态的主控板发来的上行数据。所述逻辑器件是设置为根据一主控板发出的主用状态信号判定该主控板处于主用状态，根据一主控板发出的备用状态信号判定该主控板处于备用状态。所述逻辑器件还设置为：将与处于主用状态的主控板相连的所述多路连接器件的接收端口设为连接状态，接收来自该处于主用状态的主控板的数据；将与处于备用状态的主控板相连的所述多路连接器件的接收端口设为断开状态，丟弃来自该处于备用状态的主控板的数据。所述多路连接器件还设置为：将其与所述多个主控板相连的发送端口设为硬件复制状态，将所述上联板发送给处于主用状态的主控板的数据通过硬件方式复制发送到处于备用状态的主控板。 SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a method and apparatus for fast switching between active and standby devices in a network device, and to minimize the loss of service traffic when the uplink service interruption time is long during the active/standby switchover of the active technology. Improve the speed of active/standby switching. In order to solve the above technical problem, the present invention provides a device for fast switching between active and standby devices in a network device, including: an uplink board and a plurality of main control boards, the device further includes: a multiplexed device, configured to: connect the uplink boards to the plurality of main control boards, and the uplink boards send the same downlink data to the main control board by using the multiple connection device; And the logic device is configured to: determine whether the main control board is in the active state or the standby state according to the status signal sent by the main control board, and control the multi-connected device to receive the uplink data sent by the main control board in the active state . The logic device is configured to determine that the main control board is in an active state according to an active state signal sent by a main control board, and determine that the main control board is in a standby state according to a standby status signal sent by a main control board. The logic device is further configured to: set a receiving port of the multi-connected device connected to the main control board in the active state to a connection state, and receive data from the main control board in the active state; The receiving port of the multi-connected device connected to the main control board in the standby state is set to the disconnected state, and the data from the main control board in the standby state is discarded. The multiplexer device is further configured to: set a transmission port connected to the plurality of main control boards to a hardware copy state, and send the uplink board to the data of the main control board in the active state through the hardware Mode replication is sent to the main control board in standby mode.

所述多路连接器件还设置为：将处于主用状态的主控板实时和 /或定时同步的所述上联板的媒体接入控制（MAC )地址信息、路由表信息和组播表信息设置到处于备用状态的主控板。为了解决上述技术问题，本发明还提供了一种网络设备中主备快速倒换的方法，该方法包括：逻辑器件检测各主控板发出的状态信号并判定其处于主用状态还是备用状态，所述逻辑器件控制多路连接器件仅接收处于主用状态的主控板发来的上行数据，上联板通过多路连接器件向各主控板发送相同的下行数据。处于主用状态的主控板向所述逻辑器件发出主用状态信号，处于备用状态的主控板向所述逻辑器件发出备用状态信号。所述的方法还包括，所述逻辑器件根据主备状态信号产生控制信号设置多路连接器件的接收端口的状态，与处于备用状态的主控板相连的接收端口设为断开状态，丟弃所有收到的数据包，与处于主用状态的主控板相连的接收端口状态设为连接状态。所述的方法还包括，将所述多路连接器件与所述多个主控板相连的发送端口设为硬件复制状态，所述上联板发送给处于主用状态的主控板的数据通过硬件方式复制发送到处于备用状态的主控板。所述的方法还包括，处于主用状态的主控板将所述上联板的媒体接入控制 ( MAC )地址信息、路由表信息和组播表信息实时和 /或定时通过所述多路连接器件同步到处于备用状态的主控板。本发明釆用硬件拷贝数据的方法，使得上联板同时发送数据到主备主控板，而只接收主用主控板的数据；在发生主备切换时，上联板可以立即切换到从备用变主用的主控板接收数据，从而最大限度减少业务流量的丟失，提高主备倒换的速度。 The multi-way connection device is further configured to: media access control (MAC) address information, routing table information, and multicast table information of the uplink board that synchronizes the main control board in the active state in real time and/or timing. Set to the main control board in standby state. In order to solve the above technical problem, the present invention further provides a method for fast switching between active and standby devices in a network device, the method comprising: the logic device detecting a status signal sent by each main control board and determining whether it is in an active state or a standby state, The logic device controls the multi-connected device to receive only the uplink data sent by the main control board in the active state, and the uplink board sends the same downlink data to each main control board through the multi-connected device. The main control board in the active state sends an active state signal to the logic device, and the main control board in the standby state sends a standby status signal to the logic device. The method further includes: the logic device generating a control signal according to the active/standby state signal to set the receiving of the multi-connect device The status of the port is set to the disconnected state of the receiving port connected to the main control board in the standby state. All received data packets are discarded, and the status of the receiving port connected to the main control board in the active state is set to the connected state. The method further includes: setting a sending port of the multiple connection device and the plurality of main control boards to a hardware copy state, and transmitting, by the uplink board, data of the main control board in an active state The hardware mode replication is sent to the main control board in the standby state. The method further includes: the main control board in the active state passes the media access control (MAC) address information, the routing table information, and the multicast table information of the uplink board in real time and/or timing through the multiple channels. The connected device is synchronized to the main control board in standby state. The method for copying data by using the hardware enables the uplink board to simultaneously send data to the active/standby main control board, and only receives data of the main control board; when the active/standby switchover occurs, the uplink board can immediately switch to the slave. The main control board used by the standby master receives data, thereby minimizing the loss of service traffic and improving the speed of active/standby switchover.

附图概述图 1是本发明实施例的带有主控板与上联板的连接关系的装置示意图；图 2是本发明实施例的实例的主备主控板倒换的流程图。 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a device with a connection relationship between a main control board and an uplink board according to an embodiment of the present invention; FIG. 2 is a flow chart of switching between an active and standby main control board according to an example of an embodiment of the present invention.

本发明的较佳实施方式本发明的核心在于：增设多路连接器件，用于将上联板分别连接至多个主控板，所述上联板通过所述多路连接器件向所述主控板发送相同的下行数据；增设逻辑器件，用于根据所述主控板发出的各自的状态信号判定其处于主用状态还是备用状态，并控制所述多路连接器件接收处于主用状态的主控板发来的上行数据。下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。 A preferred embodiment of the present invention is characterized in that: a multi-way connecting device is provided for connecting the upper connecting plates to the plurality of main control boards, and the upper connecting board is connected to the main control by the multi-way connecting device The board sends the same downlink data; adding logic means for determining whether it is in the active state or the standby state according to the respective status signals sent by the main control board, and controlling the multi-connected device to receive the master in the active state Uplink data sent by the control board. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

下面以一个实施例对本发明提出的倒换装置进行说明，如图 1所示，倒换装置，包括：上联板 1、主用主控板 2、备用主控板 3、一多路连接器件 4 以及一逻辑器件 5; 多路连接器件 4设置为：使上联板 1通过其分别连接至主用主控板 2和备用主控板 3 , 向两个主控板发送下行数据；可以选用双通道 2选 1 ( 1 :2 ) 电子开关或类似器件实现；逻辑器件 5设置为：接收主用主控板 2和备用主控板 3的主备状态信号，并根据所述主备状态信号控制所述多路连接器件 4 对上行数据进行选择接收。 The switching device of the present invention is described below with reference to an embodiment. As shown in FIG. 1 , the switching device includes: an uplink board, a main main control board 2, a standby main control board 3, a multi-connecting device 4, and a logic device 5; the multi-connect device 4 is configured to: connect the uplink board 1 to the main control board 2 and the standby main control board 3, respectively, and send downlink data to the two main control boards; 2 select 1 (1:2) electronic switch or similar device implementation; logic device 5 is set to: receive the active and standby status signals of the main control board 2 and the standby main control board 3, and control the location according to the active and standby status signals The multi-connect device 4 selectively receives the uplink data.

请注意，上联板 1、主用主控板 2、备用主控板 3的功能如同现有技术中的倒换装置，而多路连接器件 4以及逻辑器件 5可以封装成独立的器件，也可以设置于上联板内部，本发明并不限于此。其中，上联板 1发送到两个主控板的数据完全相同，这样主用主控板 2 和备用主控板 3都能学习到上联板 1的媒体接入控制（ Media Access Control, MAC )地址，路由表信息和组播表信息通过主备同步的方法设置到备用主控板的交换芯片中。上联板 1的逻辑器件 5根据主用主控板 2和备用主控板 3的主备状态信号控制多路连接器件，使得主用主控板 2能把数据发送到上联板 1 , 备用主控板 3的数据不能发到上联板 1 , 这样可以保证上联板 1只能收到当前主用主控板 2数据；当主备倒换以后，两个主控板（主用和备用）仍然都可以收到上联板 1的下行数据，而由备用主控板变为主用主控板的主控板可以发送上行数据到上联板，由主用主控板变为备用主控板的主控板不能发送上行数据到上联板。下面通过一个应用实例对本发明的装置进行进一步的说明。在釆用主、备主控板的通讯***中，上联板进行业务上联，主控板进行以太网交换，如图 1所示：连接主控板与上联板的多路连接器件可以通过双通道 1 :2电子开关和两组端口实现，相关端口可以使用串行（SERDES )接口或串行吉比特媒体独立接口 ( Serial Gigabit Media Independent Interface, SGMII )或 10吉 t匕特连接单元接口（lOGigabit Attachment Unit Interface, XAUI )或简化的 XAUI ( Reduced XAUI, RXAUI )等类似接口。主用主控板交换芯片通过一组接端口与上联板相连，其中发送端口设置为硬件复制状态，位于上联板侧的接收端口设为连接状态，主用主控板和上联板之间可以正常收发包；备用主控板交换芯片也通过一组端口与上联板相连，其中发送端口设置为硬件复制状态，位于上联板侧的接收端口设为断开状态，备用主控板可以正常接收到上联板发来的包，但是上联板不能收到备用主控板发来的包。上联板发给主用主控板的数据通过双通道 1:2电子开关或类似器件硬件拷贝一份给备用主控板。主备倒换时主备状态信号发生变化，逻辑器件检测到主备状态信号的变化，产生控制信号重新设置多路连接器件的两组端口状态：与由主用控制板变为备用控制板的主控板相连的接收端口设为断开状态；与由备用控制板变为主用控制板的主控板相连的接收端口状态设为连接状态。由于备用主控板总是能够收到上联板发送的数据，因此其 MAC地址表处于正常刷新状态，虚拟局域网（Virtual Local Area Network, VLAN )配置信息通过主用主控板实时和 /或定时同步到备用主控板，并设置到备用主控板的交换芯片上。备用主控板交换芯片的端口上生成的树状态和主干（ TRUNK ) 状态及其他状态，与主用主控板的设置完全相同，在主备倒换时备用主控板变为主用主控板后，二层转发可以立即进行，流量可以到达上联板。如果涉及三层交换，三层转发和各种协议的相关信息也是通过主用主控板实时和 /或定时同步到备用主控板的，备用主控板上的三层转发表和组播表 (包括 L2组播和 IPMC )等也与主用主控板的设置完全一样。这样主备倒换以后新的主用主控板三层转发和组播也能立即处于正常转发状态。 Please note that the functions of the uplink board 1, the main control board 2, and the standby main control board 3 are the same as those in the prior art, and the multi-connecting device 4 and the logic device 5 can be packaged into independent devices. It is disposed inside the upper plate, and the present invention is not limited thereto. The data sent by the uplink board 1 to the two main control boards is completely the same, so that the main control board 2 and the standby main control board 3 can learn the media access control of the uplink board 1 (Media Access Control, MAC). The address, the routing table information, and the multicast table information are set to the switching chip of the standby main control board by the method of master-slave synchronization. The logic device 5 of the uplink board 1 controls the multi-way connection device according to the active/standby status signals of the main control board 2 and the standby main control board 3, so that the main main control board 2 can send data to the uplink board 1 for backup. The data of the main control board 3 cannot be sent to the uplink board 1. This ensures that the uplink board 1 can only receive the data of the current main control board 2; after the master/slave switchover, the two main control boards (primary and standby) The downlink data of the uplink board 1 can still be received, and the main control board that becomes the main control board from the standby main control board can send uplink data to the uplink board, and the main control board becomes the standby master. The main control board of the board cannot send uplink data to the uplink board. The apparatus of the present invention will be further described below by way of an application example. In the communication system using the main and standby main control boards, the uplink board performs service uplink, and the main control board performs Ethernet switching, as shown in FIG. 1: The multi-connection device connecting the main control board and the uplink board can be It can be realized by dual channel 1:2 electronic switch and two sets of ports. The related port can use serial (SERDES) interface or Serial Gigabit Media Independent Interface (SGMII) or 10 Gigabit connection unit interface. (lOGigabit Attachment Unit Interface, XAUI) or simplified XAUI (Redundant XAUI, RXAUI) and other similar interfaces. The main control board switch chip is connected to the uplink board through a set of port, wherein the sending port is set to the hardware copy state, the receiving port on the uplink board side is set to the connection state, and the main control board and the uplink board are connected. The standby main control board switch chip is also connected to the uplink board through a set of ports, wherein the send port is set to the hardware copy state, and the receive port on the uplink board side is set to the disconnected state, the standby main control board The packet sent by the uplink board can be received normally, but the uplink board cannot receive the packet sent by the standby main control board. The data sent from the uplink board to the main control board is copied to the standby main control board through a dual channel 1:2 electronic switch or similar device hardware. During the active/standby switchover, the active/standby status signal changes. The logic device detects the change of the active/standby status signal, and generates a control signal to reset the two port states of the multi-connected device: The master that becomes the standby control board from the active control board The receiving port connected to the control board is set to the disconnected state; the status of the receiving port connected to the main control board changed from the standby control board to the main control board is set to the connected state. Since the standby main control board can always receive the data sent by the uplink board, its MAC address table is in a normal refresh state, and the virtual local area network (VLAN) configuration information is real-time and/or timed through the active main control board. Synchronize to the standby main control board and set it to the switch chip of the standby main control board. The state of the tree and the state of the trunk (TRUNK) and other states generated on the port of the standby main control board are the same as those of the main control board. When the active/standby switchover is performed, the standby main control board becomes the active main control board. After that, Layer 2 forwarding can be performed immediately, and traffic can reach the uplink board. If Layer 3 switching is involved, Layer 3 forwarding and related information of various protocols are also synchronized to the standby main control board through the active main control board in real time and/or timing. The Layer 3 forwarding table and multicast table on the standby main control board. (including L2 multicast and IPMC) and so on are also the same as the settings of the main control board. After the active/standby switchover, the new active main control board's Layer 3 forwarding and multicast can be immediately in the normal forwarding state.

下面再以一个实施例对本发明的方法流程进行说明。在整个数据交互的过程中，进行如下配置： The flow of the method of the present invention will now be described by way of an embodiment. During the entire data interaction process, perform the following configuration:

1 )上联板与处于主用状态的主控板（简称为主用主控板）和处于备用状态的主控板（简称为备用主控板）通过多路连接器件连通，向主用主控板和备用主控板发送相同的数据； 1) The uplink board and the main control board in the main state (referred to as the main control board for short) and the main control board in the standby state (referred to as the standby main control board) are connected through the multi-connection device to the main user. The control board and the standby main control board send the same data;

"发送相同的数据" 可以通过以下方式实现：向主用主控板发送数据的时候，通过多路连接器件的硬件方式（实际应用中如电子开关等器件的硬件方式等）复制一份数据到备用主控板； "Send the same data" can be achieved by: When sending data to the main control board, copying a copy of the data to the hardware of the multi-connected device (in practical applications such as hardware of devices such as electronic switches) Standby main control board;

2 )逻辑器件根据接收的状态信号控制多路连接器件，以控制对主用主控板和备用主控板发送的数据的接收；此时，上联板只接收来自主用主控板的数据，而不接收来自备用主控板的数据，因此与主用主控板相连的多路连接器件的接收端口设为连接状态；与备用主控板相连的多路连接器件的接收端口状态设为断开状态（丟弃所有收到的数据包）。如图 2所示，包括：步骤 100, 倒换装置中的逻辑器件检测接收的主用主控板和备主控板发送的主备状态信号；此时，处于主用状态的主控板发送主用状态信号，处于备用状态的主控板发送备用状态信号；逻辑器件通过对接收的状态信号的判别，检测相应的主控板更处于什么状态，是否发生倒换；步骤 200, 逻辑器件根据主用主控板和备主控板的主备状态信号判定主备主控板是否发生了倒换，如果发生倒换，执行步骤 300, 否则，执行步走 100; 步骤 300, 主备倒换时主备状态信号发生变化，此时，检测到原主用主控板处于备用状态，发送备用状态信号，原备用主控板处于主用状态，发送主用状态信号；逻辑器件则根据主备状态信号的变化产生控制信号重新设置多路连接器件的两组接收端口的状态：与由主变为备的主控板相连的接收端口设为断开状态（丟弃所有收到的数据包）；与由备变为主的主控板相连的接收端口状态设为连接状态；注意，当主备倒换发生时，上联板仍然通过硬件复制的方式向主用主控板和备用主控板发送数据，但是，主备控制信号控制双通道 1 :2电子开关或类似器件只接收来自状态由备用状态变为主用状态的主控板的数据。 2) The logic device controls the multi-connected device according to the received status signal to control the reception of data sent by the main control board and the standby main control board; at this time, the uplink board only receives data from the main control board. , instead of receiving data from the standby main control board, the receiving port of the multi-connected device connected to the main main control board is set to be connected; the receiving port status of the multi-connected device connected to the standby main control board is set to Disconnected state (discard all received packets). As shown in FIG. 2, the method includes: Step 100: The logic device in the switching device detects the active/standby status signals sent by the received main control board and the standby main control board. At this time, the main control board in the active state sends the main Using the status signal, the main control board in the standby state sends a standby status signal; the logic device detects the status of the corresponding main control board by determining the received status signal, and whether the switching occurs; Step 200, the logic device is used according to the main The active/standby status signals of the main control board and the standby main control board determine whether the active/standby main control board has been switched. If the switchover occurs, go to step 300. Otherwise, go to step 100. Step 300: Active/standby status signal during active/standby switchover A change occurs. At this time, it is detected that the original main control board is in the standby state, and the standby status signal is sent, and the original standby main control board is in the active state, and is sent. The main state signal; the logic device generates a control signal according to the change of the active/standby state signal to reset the state of the two sets of receiving ports of the multi-connected device: the receiving port connected to the main control board changed from the main to the standby is set to be disconnected Status (discard all received packets); the status of the receiving port connected to the main control board that is changed to the master is set to the connection status; Note that when the active/standby switchover occurs, the uplink board still passes the hardware copy mode. The active main control board and the standby main control board transmit data, but the active/standby control signals control the dual channel 1:2 electronic switch or the like to receive only data from the main control board whose state changes from the standby state to the active state.

其与前述的装置的操作流程对应，不足之处参考上述装置部分的叙述，在此不——赘述。 It corresponds to the operation flow of the foregoing device, and the deficiencies refer to the description of the above device parts, and are not described here.

通过上述实施例，在不增加设备成本的前提下，大幅提高了主备倒换的性能，减少了业务中断的时间，提升了用户的业务体验。 Through the foregoing embodiments, the performance of the active/standby switchover is greatly improved without increasing the cost of the device, the time for service interruption is reduced, and the service experience of the user is improved.

上述说明示出并描述了本发明的一个优选实施例，但如前所述，应当理解本发明并非局限于本文所披露的形式，不应看作是对其他实施例的排除，而可用于各种其他组合、修改和环境，并能够在本文所述发明构想范围内，通过上述教导或相关领域的技术或知识进行改动。而本领域人员所进行的改动和变化不脱离本发明的精神和范围，则都应在本发明所附权利要求的保护范围内。 The above description shows and describes a preferred embodiment of the present invention, but as described above, it should be understood that the present invention is not limited to the forms disclosed herein, and should not be construed as Other combinations, modifications, and environments are possible and can be modified by the teachings or related art or knowledge within the scope of the inventive concept described herein. The modifications and variations of the present invention are intended to be within the scope of the appended claims.

工业实用性本发明釆用硬件拷贝数据的方法，使得上联板同时发送数据到主备主控板，而只接收主用主控板的数据；在发生主备切换时，上联板可以立即切换到从备用变主用的主控板接收数据，从而最大限度减少业务流量的丟失，提高主备倒换的速度。 Industrial Applicability The method for copying data by hardware enables the uplink board to simultaneously send data to the active and standby main control boards, and only receives data of the main control board; when the active/standby switchover occurs, the uplink board can immediately Switch to receive data from the standby main control board to minimize the loss of service traffic and improve the speed of active/standby switchover.

Claims

权利要求书 Claim

1、一种网络设备中主备快速倒换的装置，包括：上联板和多个主控板，所述装置还包括：多路连接器件，其设置为：将所述上联板分别连接至所述多个主控板，所述上联板通过所述多路连接器件向所述主控板发送相同的下行数据；以及逻辑器件，其设置为：根据主控板发出的状态信号判定主控板处于主用状态还是备用状态，并控制所述多路连接器件接收处于主用状态的主控板发来的上行数据。 A device for quickly switching between the active and standby devices in the network device, comprising: an uplink board and a plurality of main control boards, the device further comprising: a multi-connecting device, configured to: connect the uplink boards to The plurality of main control boards, the uplink board transmits the same downlink data to the main control board through the multiple connection device; and the logic device is configured to: determine the main according to the status signal sent by the main control board Whether the control board is in the active state or the standby state, and controlling the multi-connected device to receive the uplink data sent by the main control board in the active state.

2、如权利要求 1所述的装置，其中，所述逻辑器件是设置为根据一主控板发出的主用状态信号判定该主控板处于主用状态，根据一主控板发出的备用状态信号判定该主控板处于备用状态。 2. The device according to claim 1, wherein the logic device is configured to determine that the main control board is in an active state according to an active state signal sent by a main control board, according to a standby state issued by a main control board. The signal determines that the main control board is in a standby state.

3、如权利要求 2所述的装置，其中，所述逻辑器件还设置为：将与处于主用状态的主控板相连的所述多路连接器件的接收端口设为连接状态，接收来自该处于主用状态的主控板的数据；将与处于备用状态的主控板相连的所述多路连接器件的接收端口设为断开状态，丟弃来自该处于备用状态的主控板的数据。 3. The apparatus according to claim 2, wherein the logic device is further configured to: set a receiving port of the multi-connecting device connected to the main control board in an active state to a connected state, and receive from the Data of the main control board in the active state; setting the receiving port of the multi-connected device connected to the main control board in the standby state to the disconnected state, discarding data from the main control board in the standby state .

4、如权利要求 2所述的装置，其中，所述多路连接器件还设置为：将其与所述多个主控板相连的发送端口设为硬件复制状态，将所述上联板发送给处于主用状态的主控板的数据通过硬件方式复制发送到处于备用状态的主控板。 The device according to claim 2, wherein the multi-connecting device is further configured to: set a transmitting port connected to the plurality of main control boards to a hardware copy state, and send the uplink board The data of the main control board in the active state is copied by hardware to the main control board in the standby state.

5、如权利要求 4所述的装置，其中，所述多路连接器件还设置为：将处于主用状态的主控板实时和 /或定时同步的所述上联板的媒体接入控制（MAC )地址信息、路由表信息和组播表信息设置到处于备用状态的主控板。 5. The apparatus according to claim 4, wherein the multiple connection device is further configured to: media access control of the uplink board that synchronizes the main control board in an active state in real time and/or timing ( MAC) address information, routing table information, and multicast messages The information is set to the main control board in the standby state.

6、一种网络设备中主备快速倒换的方法，该方法包括：逻辑器件检测各主控板发出的状态信号并判定其处于主用状态还是备用状态，所述逻辑器件控制多路连接器件仅接收处于主用状态的主控板发来的上行数据，上联板通过多路连接器件向各主控板发送相同的下行数据。 6. A method for fast switching between active and standby devices in a network device, the method comprising: the logic device detecting a status signal sent by each main control board and determining whether it is in an active state or a standby state, wherein the logic device controls the multi-connected device only The uplink data sent by the main control board in the main state is received, and the uplink board sends the same downlink data to each main control board through the multi-connection device.

7、如权利要求 6所述的方法，其中，处于主用状态的主控板向所述逻辑器件发出主用状态信号，处于备用状态的主控板向所述逻辑器件发出备用状态信号。 7. The method of claim 6, wherein the main control board in the active state issues an active state signal to the logic device, and the main control board in the standby state issues a standby state signal to the logic device.

8、如权利要求 7所述的方法，其还包括，所述逻辑器件根据主备状态信号产生控制信号设置多路连接器件的接收端口的状态，与处于备用状态的主控板相连的接收端口设为断开状态，丟弃所有收到的数据包，与处于主用状态的主控板相连的接收端口状态设为连接状态。 8. The method according to claim 7, further comprising: the logic device generating a control signal according to the active/standby state signal to set a state of a receiving port of the multi-connecting device, and a receiving port connected to the main control board in the standby state. Set to the disconnected state, discard all received packets, and set the status of the receiving port connected to the main control board in the active state to the connected state.

9、如权利要求 7所述的方法，其还包括，将所述多路连接器件与所述多个主控板相连的发送端口设为硬件复制状态，所述上联板发送给处于主用状态的主控板的数据通过硬件方式复制发送到处于备用状态的主控板。 9. The method of claim 7, further comprising: setting a transmission port of the multi-connect device to the plurality of main control boards as a hardware copy state, and transmitting the uplink board to the primary device The data of the status control board is copied to the main control board in standby state by hardware replication.

10、如权利要求 9所述的方法，其还包括，处于主用状态的主控板将所述上联板的媒体接入控制 ( MAC )地址信息、路由表信息和组播表信息实时和 /或定时通过所述多路连接器件同步到处于备用状态的主控板。 10. The method according to claim 9, further comprising: the main control board in the active state real-time and media access control (MAC) address information, routing table information, and multicast table information of the uplink board / or timing is synchronized to the main control board in the standby state by the multi-connected device.