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IP address automatic configuration method based on link layer topology

An IP address and link layer technology, applied in energy-saving ICT, advanced technology, electrical components, etc., can solve problems such as topology irrelevance, difficulty in managing switches in later maintenance, and uncontrollable addresses

Active Publication Date: 2014-01-22
KYLAND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But like BOOTP, it has the following defects. First, the device to be assigned an IP address is an active request mode, which is not suitable for use in an industrial environment; second, in the same network, multiple servers are allowed to be assigned at the same time. The allocation is uncontrollable and is not suitable for use in industrial environments; third, the address allocation is in accordance with the order in which the equipment responds (unless the MAC address is known, and the address mapping is done on the server), it has nothing to do with the topology, and it will be used for later maintenance and switches. Management creates difficulties

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  • IP address automatic configuration method based on link layer topology
  • IP address automatic configuration method based on link layer topology
  • IP address automatic configuration method based on link layer topology

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Experimental program
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Embodiment Construction

[0031] This article provides an IP address allocation method based on the link layer topology tree, including the following steps:

[0032] 1. The server-side device is an IP address device to be allocated, and must support the LLDP protocol; the server-side device forms different TLVs according to the data information (such as MAC address, device identification, and interface identification information) of the server-side device according to the LLDP protocol (Type / Length / Value, type / length / value), and encapsulated in LLDPDU to form an LLDP message, and then publish the LLDP message to the neighbor device directly connected to the server-side device, and the neighbor device receives The LLDP message is formed, and the neighbor relationship table of the LLDP protocol is saved, as shown in Table 1 below.

[0033] Neighbor relationship table of LLDP protocol 1

[0034]

[0035] 2. The server-side device supports the neighbor query function of the client, and the specific fun...

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Abstract

The invention provides an IP address automatic configuration method based on link layer topology. A server end device supporting an LLDP protocol is a device which distributes IP addresses for a device to be distributed with an IP address and a client end device supporting the LLDP protocol. The client end device completes IP address distribution based on logic topology according to breadth-first search or depth-first search. Since the method is enforced based on software of a switch, the method has the advantages of simple realization, convenience, agility, and simple usage, a plurality of distribution rules and man-machine interaction configuration modes are supported, user management and on-line configuration are facilitated, distribution mode is active, and operation is more visual and reliable.

Description

technical field [0001] The invention relates to a method for automatically assigning IP addresses based on the Link Layer Neighbor Discovery Protocol (LLDP protocol, hereinafter referred to as LLDP), which is suitable for the field of Ethernet communication and the field of embedded devices supporting TCP / IP protocol stack, especially for industrial Controlled Ethernet communication applications. Background technique [0002] When the Ethernet switch and some embedded network devices supporting the TCP / IP protocol stack are shipped from the factory, their IP address configurations are usually default configurations. Pre-configured to enable remote management capabilities. [0003] In order to solve the function of IP address pre-configuration, the TCP / IP protocol family began to solve this problem, and three solutions appeared successively: [0004] A. Reverse Address Resolution Protocol (RARP): There are following defects. First, RARP, like ARP, works on the IP layer, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
CPCY02B60/43Y02D30/00
Inventor 马化一薛百华陈凡民
Owner KYLAND TECH CO LTD