IPv6-based power line carrier communication network congestion control method

Abstract

The present invention relates to an IPv6-based power line carrier communication network congestion control method, and belongs to the intelligent power grid communication technology field. The method comprises the following steps of S1 using carrier network nodes to construct a congestion control-based IPv6 hierarchical forwarding tree network topology structure to thereby reduce the node congestion probability; S2 when the nodes congest, broadcasting a congestion notification message in a multicast manner to carry out the flow distribution on the parent and child nodes again, and combining an IPv6 protocol to enable the noticed nodes to transmit the message according to a corresponding redundant routing addressing method to transfer the flow of a congestion area to other areas of lighter loads to thereby avoid the congestion nodes; S3 after the congestion of the nodes is released, broadcasting a congestion release message in the multicast manner to enable the parent and child nodes to recover an original flow distribution mode. The method of the present invention enables the network throughput and the network overall communication capability to be improved effectively.

Description

technical field [0001] The invention belongs to the technical field of smart grid communication, and relates to an IPv6-based power line carrier communication network congestion control method. Background technique [0002] With the expansion of power line communication application scenarios and the development of Internet communication technology, applying the IPv6 protocol, the core technology of the next generation Internet, to the power line carrier communication network and realizing the IPv6 resource allocation of power communication equipment will make the power line communication network better. The end-to-end connection optimizes the inheritance of new services and applications on the Internet. [0003] Since the low-voltage power line communication network has a changeable network structure, and in the case of the same network node resources and communication capabilities, the topology of the shortest path tree usually has the advantages of fewer forwarding hops an...

AI Technical Summary

Problems solved by technology

If an emergency occurs in some areas, when more nodes send data to a forwarding node, the rate at which the forwarding node receives messages may increase, causing the forwarding queue to increase or even overflow, resulting in node congestion

Under the tree topology structure with a single link, if the node congestion is not resolved in time, it will not only increase the packet loss rate and affect the transmission reliability, but also reduce the bandwidth utilization rate, cause a waste of resources, and even lead to partial network paralysis

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