Method and system for detecting LAN port loop of AP
A LAN port and loop technology, which is used in the field of detecting the LAN port loop of APs, can solve the problem that the LAN port loop is difficult to be found, avoid the danger of falling into a loop storm, has strong operability, and reduce the burden Effect
Active Publication Date: 2017-08-11
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 an LAN port loop of an AP. The method comprises the following steps: judging whether a to-be-detected first LAN port and a to-be-detected second LAN port of the AP are in an enabling state, if the to-be-detected first LAN port and the to-be-detected second LAN port of the AP are in the enabling state, entering the next step; starting a loop detection pooling mechanism so that the to-be-detected first LAN port periodically sends a loop detection data frame according to a preset detection period; judging whether the data frame received by the to-be-detected second LAN port is consistent with the loop detection data frame, if the data frame received by the to-be-detected second LAN port is consistent with the loop detection data frame, judging that the loop appears in each of the to-be-detected first LAN port and the to-be-detected second LAN port; or judging that the loop does not appear in each of the to-be-detected first LAN port and the to-be-detected second LAN port, turning off the loop detection polling mechanism, and stopping the loop detection. The invention further discloses a system for detecting the LAN port loop of the AP. By use of the method and system disclosed by the invention, whether the loop appears between two LAN ports of the AP can be simply and effectively 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