A method and system for detecting a lan port loop of an AP
A LAN port and loop technology, which is applied in the field of detecting AP LAN port loops, can solve the problems that the LAN port loops are difficult to be found, so as to prevent the danger of falling into a loop storm, the method is simple, and the loop detection is improved Effect
Active Publication Date: 2021-06-04
台州市吉吉知识产权运营有限公司
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[0006] The present invention provides a method and system for detecting the loop of the LAN port of the AP, which is used to solve the problem that the loop of the two LAN ports on the AP is difficult to be found due to the short connection
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[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0040] The invention discloses a method for detecting a LAN port loop of an AP, and the embodiment is as follows figure 1 shown, including steps:
[0041] S100 judges whether the first LAN port to be tested and the second LAN port to be tested of the AP are both in the enabled state, and if so, enter the next step;
[0042] S200 starts a loop detection polling mechanism, and controls the first LAN port to be tested to regularly send a loo...
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The invention discloses a method for detecting a LAN port loop of an AP, which includes: judging whether the first LAN port to be tested and the second LAN port to be tested of the AP are both in the enabled state, and if so, enter the next step; start the loop Detection polling mechanism, the first LAN port to be tested regularly sends loop detection data frames according to the preset detection cycle; judge whether the data frame received by the second LAN port to be tested is consistent with the loop detection data frame, and if so, judge the data frame to be tested A loop occurs on the first LAN port to be tested and the second LAN port to be tested; otherwise, it is judged that there is no loop on the first LAN port to be tested and the second LAN port to be tested, and the loop detection polling mechanism is turned off to stop the loop detection. The invention also discloses a system for detecting the loop of the LAN port of the AP. Through the method and system of the present invention, whether there is a loop between the two LAN ports of the AP can be quickly and simply detected.
Description
technical field [0001] The invention belongs to the technical field of local area networks, and in particular relates to a method and a system for detecting a loop at a LAN port of an AP. Background technique [0002] In a device with two local Ethernets, it is necessary to ensure that the two Ethernet ports do not form a loop. If the device is in a loop state, messages will be continuously received and forwarded in the device, which will inevitably lead to a loop Once the loop storm is formed, the CPU of the device will be tired of receiving and forwarding at least tens of thousands of data packets per second and at most millions of data packets per second, and have no time to process normal communication network packets. [0003] Two common network topologies that cause loops on network access devices include device port self-loops, where the ports can be the same port or two different ports on the same device. The self-loop caused by the same port is generally caused by ...
Claims
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IPC IPC(8): H04L12/26
CPCH04L43/08H04L43/103
Inventor 王斌
Owner 台州市吉吉知识产权运营有限公司