Active-standby switchover method and main control board and line card board
A technology of active/standby switchover and main control board, applied in data exchange networks, digital transmission systems, electrical components, etc., to solve performance bottlenecks, difficult to estimate how long it takes for traffic migration, and bandwidth performance bottlenecks of the whole machine.
Active Publication Date: 2011-12-07
NEW H3C TECH CO LTD
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Problems solved by technology
[0007] 1. Traffic will be migrated during active / standby switchover, and packets will be lost along with the migration of traffic, which will affect normal business
[0008] 2. It is difficult to estimate how long traffic migration will take, and the duration of packet loss cannot be controlled
[0009] 3. The system is prone to bottlenecks in the overall bandwidth performance
When the communication device works in Load Balance mode, the bandwidth of the whole machine drops by half after the active / standby switchover occurs, which is prone to performance bottlenecks
Method used
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[0060] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0061] For communication devices under the Crossbar architecture, the following describes how to perform active / standby switchover in Load Single and Load Balance modes.
[0062] figure 2 The embodiment of the present invention provides a flow chart for the processing of the active main control board when the communication equipment working under the Crossbar architecture of the Load Single mode has an active / standby switchover, as shown in figure 2 As shown, the specific steps are as follows:
[0063] Step 201: Pre-set a storage bank for the active main control board, and the storage bank is specially used for storing a soft-reset active-standby switchover flag.
[0064] The storage body in this step only needs to ensure that the main control board is restarted but the stored data is not lost. For example, memory can be reserved ...
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The invention discloses a main / standby switching method, a master control board and a wire clamping board. The main / standby switching method comprises the steps: the master control board undergoes main / standby switching, a main master control board is reset and used for reading a self onsite signal and finding the signal to instruct the site, and a soft reset main / standby switching mark is arranged in a self preset storage body; after being reset, the main master control board is restarted and used for reading the soft reset main / standby switching mark from the preset storage body, finding the mark to instruct soft resetting so that a forwarding device of the main master control board does not undergo hard resetting, and hosting writing operation of the self forwarding device. According to the main / standby switching method, the influence on flow forwarding, caused by main / standby switching, is reduced.
Description
technical field [0001] The present invention relates to the technical field of flow forwarding, in particular to a master-standby switchover method applied to a communication device with master and backup master control boards, a master control board and a line card board located in the communication device with master and slave master control boards. Background technique [0002] On the existing communication equipment of the switching network matrix (CrossBar) architecture, the line card board will be interconnected with the active main control board and the standby main control board to form a main-standby environment that can back up each other. [0003] figure 1 It is a schematic diagram of the internal composition of the communication equipment of the existing CrossBar architecture, such as figure 1 As shown, when the device works in load single mode, the inter-board traffic between line card boards must be forwarded through the active main control board, and the stan...
Claims
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IPC IPC(8): H04L12/24H04L12/56H04L1/22H04L45/28
Inventor 邹昌盛
Owner NEW H3C TECH CO LTD