Anycast

In the previous few decades we used IPv4 for communication to send and receive data, but there are some problems that appear with this version in the last few years.
In this document there are discussions of the newer version of IP address (IPv6) and the new feature that provided by it to solve the previous version drawbacks in fields of addressing, security and mobility.

An interactive data visualization has been built that can visualize how an anycast network is functioning. Numerous interaction techniques have been utilized to allow the user to view, explore and analyze the data such that unusual routing patterns and deficiencies of the Border Gateway Protocol can be detected. The development of the project has been based on the human-centered design process making use of multiple iteration cycles. In each cycle a prototype was built and evaluated after which the received feedback was prioritized accordingly and taken in to account for the next iteration cycle. The final implementation supports drilling down in to the data such that the distribution of the queries can be viewed per continent, country, anycast site and autonomous system.

This paper conducts a detailed simulation study of stateless anycast routing in a mobile wireless ad hoc network. The model covers all the fundamental aspects of such networks with a routing mechanism using a scheme of orientation-dependent inter-node communication links. The simulation system Winsim is used which explicitly represents parallelism of events and processes in the network. The purpose of these simulations is to investigate the effect of node’s maximum speed, and different TTL over the network performance under two different scenarios. Simulation study investigates five practically important performance metrics of a wireless mobile ad hoc network and shows the dependence of this metrics on the transmission radius, link availability, and maximal possible node speed.