Redundancy routing mechanism based on hierarchical forwarding tree for IPv6 communication in power line carrier networks

摘要

For effectively reducing the packet loss rate and time delay when IPv6 is applied to power line communication system, the redundant routing mechanism based on hierarchical forwarding tree is put forward. A redundancy routing mechanism of IPv6 based on hierarchical forwarding tree is designed for power line carrier communication networks. The hierarchical forwarding tree model for power line carrier networks is constructed by designing IPv6 automatic address allocation method. Each node only needs to maintain a few forwarding entries corresponding to the number of child nodes to generate routing information fast in the subnet. The redundancy routing mechanism of backup parent nodes is designed based on the link quality, address space and networks depth of the beacon frame. By using redundancy routing mechanism, the problem of routing loops in Power Line Communication coming with hierarchical forwarding tree, will be solved and the routing will recover through the shortest path. The actual test results show that the redundancy routing mechanism has good performance on transmitting efficiency and fault-resilient, which efficiently improves the timeliness and reliability of power line carrier communication based on IPv6.