MRP redundant domain link fault processing method, network device and system

By switching the port status in the MRP redundancy domain or sending messages to the MIM device, the problem of data message forwarding failure caused by multiple link failures in the MRP redundancy domain is solved, and normal data transmission is achieved in the case of multiple link failures.

CN120710918AActive Publication Date: 2025-09-26NEW H3C TECH CO LTD
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Patent Information

Application Number
CN202510898175.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2025-09-26
Estimated Expiration
2045-06-30

AI Technical Summary

Technical Problem

When multiple links in an MRP redundancy domain fail, data packet forwarding fails.

Method used

By judging whether a message within a preset time period is received on the first network device, if not received, the interconnection port is switched to a forwarding state or a message is sent to the MIM device through the MRP interconnection domain to switch the port state, thereby ensuring that the data message can be forwarded normally.

Benefits of technology

When multiple links fail in an MRP redundancy domain, data packets can be forwarded normally as much as possible, avoiding broadcast storms and ensuring communication connectivity.

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Abstract

The embodiment of the invention provides an MRP redundant domain link fault processing method, network equipment and a system, relates to the technical field of networks, is applied to first network equipment, and comprises the following steps: after determining that a first port fails, judging whether a first message is received within a first preset duration, the first message is broadcasted in the first MRP redundant domain after the second network equipment determines that the second port is in a fault state; under the condition that the first network equipment is the MIM equipment in the MRP interconnection domain, switching the state of the first interconnection port into a forwarding state in which the message is allowed to be forwarded; and under the condition that the first network equipment is not the MIM equipment in the MRP interconnection domain, sending a second message to the MIM equipment, so that the MIM equipment switches the state of a second interconnection port of the MIM equipment to a forwarding state. By applying the scheme provided by the embodiment of the invention, when multiple links in the MRP redundant domain fail, the data message can be normally forwarded as far as possible.
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Citation Information

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