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Multi-link communication method and system based on LLDP message

A communication method and technology of a communication system, applied in the multi-link communication method and system field based on LLDP messages, capable of solving problems such as mutual interference, affecting network stability, and connecting network management equipment, so as to improve efficiency and avoid network instability , to ensure the effect of stability

Active Publication Date: 2019-09-13
广东九博科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At this time, in order to ensure that the network management device can automatically connect with the device and manage it after the device in the network is connected to the network, a dual-link communication or multi-link communication method is generally used between the device and the network management device, because if There is only one path between the device and the network management. When this path is broken, the network management cannot be connected to the device, resulting in the inability of the device to be managed stably or to communicate with the network management device.
However, when the existing technology adopts multi-link communication, it does not consider that if the multiple ports connected to the two devices and the network management are cross-connected, the communication of multiple ports will be lost without priority or preset communication rules. Constantly jumping and interfering with each other, thus affecting the stability of the network

Method used

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  • Multi-link communication method and system based on LLDP message
  • Multi-link communication method and system based on LLDP message

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 As shown, this embodiment 1 discloses a multi-link communication method based on LLDP packets, including the following steps:

[0052] S1. Obtain the LLDP message sent by the communication port of the peer device received by the communication port of the local device;

[0053] S2. Obtaining the parameters of the local device and parsing and obtaining the parameters of the opposite device in the LLDP message;

[0054] Specifically, the local device parameters include the address information of the local device and the port information of multiple communication ports of the local device; the peer device parameters include the address information of the peer device and the port information of multiple communication ports of the peer device;

[0055] S3. Comparing the parameters of the peer device with the parameters of the local device according to a preset setting rule to generate setting information;

[0056] Specifically, the setting information is us...

specific Embodiment

[0075] In order to realize the dual uplink communication of devices in the DCN network, the LLDP protocol is needed. The LLDP protocol is a link detection and discovery protocol. Since the LLDP message can carry the MAC address and IP address of the device, the ARP of the peer device can be discovered through this information. Request and establish a connection with the peer device.

[0076] When the device starts to establish a connection, both the local device and the peer device send the LLDP protocol. When the local device receives the LLDP packet sent by the peer device, it analyzes the system MAC address of the peer device and compares it with the system MAC address of the local device. The device is configured in passive mode. The device configured in the active mode will actively send LLDP packets through the communication port, and the port of the device configured in the passive mode will reply LLDP packets only after passively receiving LLDP packets from the peer e...

Embodiment 3

[0084] Such as figure 2 As shown, this embodiment corresponds to the multi-link communication method based on LLDP messages in Embodiment 1, and discloses a multi-link communication system based on LLDP messages, including:

[0085] The message obtaining device 1 is arranged in the local device, and is used to obtain the LLDP message sent by the communication port of the opposite device received by the communication port of the local device;

[0086]The parameter obtaining device 2 is used for obtaining the parameters of the local device and parsing and obtaining the parameters of the opposite device in the LLDP message;

[0087] Specifically, the local device parameters include the address information of the local device and the port information of multiple communication ports of the local device; the peer device parameters include the address information of the peer device and the port information of multiple communication ports of the peer device;

[0088] The setting inf...

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Abstract

The invention discloses a multi-link communication method and system based on an LLDP message. By using equipment parameter information in the LLDP message, parameters of the home terminal device arecompared with the parameters of the opposite terminal device. Message sending modes and port priorities of the home terminal device and the opposite terminal device are set by using a preset settingrule. A reasonable priority is set for the multi-link communication of the home terminal device and the opposite terminal device. The efficiency of the multi-link communication between the devices canbe greatly improved, the stability of the multi-link communication between the devices is ensured, and the problem of network instability caused by cross interconnection of a plurality of ports between the devices is avoided.

Description

technical field [0001] The invention belongs to the field of multi-link communication, and in particular relates to a multi-link communication method and system based on LLDP messages. Background technique [0002] In the process of building a data network, in order to ensure the stability of communication between devices, redundant links, that is, backup links are generally used to protect the communication between devices. When the main link fails, the backup link can be used to Communication, so that the communication between devices is more fault-tolerant and more stable. [0003] For example, when building a data communication network (Data Communication Network, DCN), a network management device unit will be introduced to manage the devices in the network. Specifically, each device will be in the DCN network, according to the LLDP protocol (Link Layer Discovery Protocol, Link Layer Discovery Protocol), which organizes the main capabilities, management addresses, devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/22H04L12/711H04L45/247
CPCH04L1/22H04L45/22Y02D30/00
Inventor 赵良郑向东
Owner 广东九博科技股份有限公司