Node equipment access method, system and device based on MAC address
A MAC address and node device technology, which is applied in the field of node device access based on MAC addresses, can solve problems such as wasting time and not being able to effectively improve the efficiency of MAC addresses
Active Publication Date: 2014-08-27
KYLAND TECH CO LTD
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[0008] In the above process, each node device can judge whether the MAC address carried in the MAC conflict detection message conflicts with its own MAC address only when it receives the MAC conflict detection message sent by the newly added node device. Only node devices with MAC address conflicts can determine whether the MAC addresses conflict. Therefore, the MAC address detection method when the node device in the prior art is connected is a waste of time and cannot effectively improve the efficiency of MAC address detection.
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[0056] In order to improve the access efficiency of node equipment and improve the security of the system, a MAC address-based node equipment access method, system and device are provided.
[0057] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0058] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0059] figure 2 A MAC address-based node device access process diagram provided for an embodiment of the present invention, t...
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The invention provides a node equipment access method, system and device based on the MAC address. According to the method, first node equipment receives an MAC collision detection message sent by new node equipment, whether the MAC address of the new node equipment conflicts with the MAC addresses of other node equipment in the same network is judged according to the MAC addresses of other node equipment in the same network saved locally, forwarding of the message is stopped if collision exists, and the MAC address of the new node equipment is saved and a timestamp receiving the message is added to the message to be forwarded if no collision exists. Due to the fact that the MAC addresses of other node equipment in the same network are saved in each piece of node equipment, integral judgment can be conducted according to the condition in the network when the MAC collision detection message is received, and then node equipment access efficiency can be improved; furthermore, when no collision is detected, the timestamp is added to the message so that follow-up MAC address counterfeit detection can be facilitated, and the safety of the system is improved.
Description
technical field [0001] The invention relates to the technical field of industrial Ethernet communication, in particular to a MAC address-based node device access method, system and device. Background technique [0002] At present, industrial Ethernet is developing very rapidly and has been widely used in various industries, so that the status of Ethernet communication in the field of industrial automation has risen rapidly. [0003] figure 1 When a new node device in the prior art is connected to the network, the MAC address conflict detection process includes the following steps: [0004] Step 1: The newly added node device sends a MAC conflict detection (ARP) message to the whole network, wherein the MAC conflict detection message carries the MAC address information of the newly added node device. [0005] Step 2: Other node devices that have received the MAC conflict detection message judge whether the MAC address information conflicts with their own MAC address accordi...
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Login to View More IPC IPC(8): H04L12/28H04L12/26H04L12/741H04L45/74
Inventor 何英军孔勇张俭锋张洪雁薛百华丁杰
Owner KYLAND TECH CO LTD