Controlware Failure Detection and Recovery Method in Networkware Architecture Based on Forwarding and Control
A technology of control network and recovery method, applied in the field of computer communication, to achieve the effect of wide practical use effect prospect and broad application prospect
Active Publication Date: 2017-02-22
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology
There is currently no effective mechanism for how the forwarding piece detects an error in the main control piece and determines that it cannot work normally, and how to switch between the main control piece and the backup control piece
Method used
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[0029] Below in conjunction with accompanying drawing, the present invention will be further described.
[0030] Such as Figure 1-5 As shown, the control component failure detection and recovery method based on the forwarding and control network component architecture includes the following steps:
[0031] Step (1) Determine the list of main controls and other available controls through the control management unit, and inform each control of the list, and at the same time, notify the forwarder of the list through the forwarder management unit;
[0032]Step (2) The main control part monitors the changes in the state of other control parts, updates the list of available control parts according to the changes in the state of other control parts, and informs other control parts and forwarding parts of the updated list; Carry out the next step according to the busyness of the file, if the forwarding file has no data packet processing, then go to step (3), if the forwarding file i...
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The invention discloses a failure detection and recovery method for control elements based on a forwarding and control network element framework. The method comprises the steps of controlling a list of available control elements, updating the list of control elements, carrying out unidirectional data backup on the available control elements to realize consistency of related data, detecting availability of a main control element by carrying out a heartbeat and point detection combined method among forwarding and main control elements, carrying out a heartbeat detection method between the main control element and the control element at the head of the list of available control elements, and realizing seamless switching between the main control element and the control element at the head of the list of available control elements if the main control element is detected to be dead halted. The failure detection and recovery method satisfies the requirement of redundant backup of multiple control elements, and the point detection is combined with the heartbeat detection to prevent the forwarding element from switching to different control elements.
Description
technical field [0001] The invention belongs to the technical field of computer communication, and in particular relates to a control component failure detection and recovery method in a network component architecture based on forwarding and control. Background technique [0002] As the core equipment of the computer network, the router is of great importance for its high availability. In terms of hardware, the router needs to have a robust architecture including various complete redundant components, such as routing engine and switching matrix redundancy. In terms of software, in addition to its own robustness, when encountering network adjustments such as replacing hardware, system upgrades, adding boards, and changing links, the software must be able to ensure that the entire network service is not affected by local adjustments, so that the entire network can reflect It provides very high availability and ensures that the routing engine can switch without packet loss and...
Claims
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IPC IPC(8): H04L12/24H04L12/26H04L1/16
Inventor 吴晓春王伟明方琦王超
Owner ZHEJIANG GONGSHANG UNIVERSITY