Topology Discovery for Backbone of IPv6 Networks
IPv6骨干网络的拓扑发现

With the development of IPv6 networks, proceeding to the stage of large-scale deployment, it is challenging to measure its topology. Although there are some existed methods in the field of IPv4 backbone topology discovery, many of them cannot be applied to IPv6 because of the changes in the protocols. And some of new features of IPv6 make some new methods of topology discovery possible. This paper describes a series of topology discovery algorithms and their implement including topology discovery algorithm of Internet backbone, the method of obtaining the geography information relating to the IPv6 addresses and a new method of distributed topology discovery based on IPv6 tunnel techniques. At last, this paper explains and analyzes the IPv6 backbone topology data obtained using these methods.