Beginning of IPV6:
IPv6 has been proposed by IEFT (Internet Engineering Task Force) and the objective of launching it is to offer the Internet space, as it is currently available, with larger address space. It comes as a direct result of the much talked about problem of internet address exhaustion and it is being anticipated that this setting of addresses through Ipv6 would bring an enhanced performance with it. A lot of research based initiatives were undertaken in the last decade to ensure that the upcoming protocol must be inexhaustible or not easily exhaustible, because the nature of complexity in designing a new protocol and to ensure that the same has been useful in all the previous implementations too, is a really cumbersome task. The design, mechanism for internet based connection on the basis of new addressing scheme and associated routing mechanism, along with the transition mechanisms for the implementation of new protocol Ipv6 in all the previous implementations as well came at the expense of massive research and efforts. The complexity of this protocol Ipv6 is evident from the fact that its needs for the support network equipments are really high in comparison with its predecessor. In other reforms, the associated performance management and evaluation methods are complex and demand additional infrastructure, although platforms in these proportions are proposed, and these platforms mainly focus on the performance of networking hardware, yet their compatibility with the protocol is a complex combination.
IPV6 Performance Scenario:
It took the designers almost a decade to come up with the basic design and testing infrastructure and after this hard work of almost 10 years, the current IPv6 is in a transition phase, where it comes out of the testing phases and is ready for some real and implementable experimental research to allow researchers to understand its working and its impact on the global operational networks. Performance is always a big challenge for any network entity and once such a network becomes public support system, the performance becomes even more important for it. In such situations, there is need for a protocol or a setup that is capable of offering performance which is acceptable on a large scale implementation. As in the case of IPv6, performance and associated support attributes are even more complex because of its nature of dependency on the complex network hardware. As per recent research, the very basis of IPv6 is not suitably designed with the required mapping and as per researchers, it has a tendency to face transition problem since its very inception. The other important factor affecting its performance is the role of tunneling in IPv6 test beds, in addition to which, the process of the migration from IPv4 to IPv6 and IPv6-in-IPv4 tunnels will be widely used and the major challenge would be in the fact that there would be no native IPv6 connectivity accessible in that zone. Some researchers have even established that the whole concept of using tunnels seem to be degrading the network performance and hence, its reliability.
Whereas, additional concern about the migration issues from Ipv4 to Ipv6 are being foreseen because of the actual performance related to IPv6 Internet design, because this protocol is being used by any average Ipv6 internet user. Internet traffic is formed by the end users actually making use of internet and hence their performance in design and deployment of Ipv6 based internet or networks and hence, the performance is of great importance in all senses. Recently, the performance and operational issues of Ipv6 networks are considered seriously.
Issues in mobility support for IPv4:
As per research, the authors have discussed that the issues associated with IPv6-in-IPv4 tunnel can be majorly related with discovery problem, and can also propose numerous techniques to interfere with these tunnels. Every one of these and related techniques is an implemented combination of some basic methods like: Path MTU discovery, DNS lookups, hop limit manipulation, IP spoofing and IPv6 header modification. The outcomes of this technical testing showed that even native networks were seen to reach more than 60% of all Ipv6 translations through tunnels. The authors through their research however, argue that in case of a poorly managed experiment scenario of IPv6 sites can be one of the major hurdles to the performance and the quality of the IPv6 Internet.
With an increased focus on making this protocol the most efficient protocol for internet based communication and to make it useful and more performance oriented in comparison with its predecessor, specific troubleshooting guidelines were implemented and the research groups selected a group of IPv4/IPv6 stack nodes and used them to make specific DNS lookups. The research groups studied the Ipv6 from different perspectives: IPV4 RTT ratios were observed by making use of a dual-stack ping commands and to do specific path analysis by making use of trace route with the path MTU discovery and the same experiment was carried out in three different locations in Japan and Spain. The research performed in this paper is emphasized through the fact that there were no previous work attempts done to identify the migration from Ipv4 to IPv6 Internet Protocol on the basis of the performance of the current protocol and by real TCP traffic management techniques. In addition to it, the study establishing and highlighting the core relationship between RTT and the associated network topology, a proposed effect on the performance of the current version of Internet Protocol method is given to locate the key points of the performance of IPv6 on the basis of its configuration and troubleshooting features. Different studies on the mobility issues and their solutions have been performed in the research associated with the two protocol versions and the established differences have been classified in terms of the methodology of IPv4/IPv6 dual-stack Web server measurement.
The core relationship between the mobility from ipv4 to IPV6 is concrete and validated through core analysis on the basis of better performance and on the basis of complete implementation in terms of full migration facility and by withholding all features that were available in the predecessor and by offering new features of performance, reliability and execution in the newer version. The study of migration to IPV6 is limited due to the problem of availability of sufficient literature, primarily Request for Comment (RFC) reports, that will help in establishing basic flow of experimented information related to performance and migration issues. Moreover, available transition mechanism for the protocols as well as problems concerning the transition from IPv4 to IPv6 is heightened due to the use of non supportable claims. However, the methods of transition have varied requirements of network support and for implementation of required network support, some methods are capable of providing solutions which are more suitable in case of certain network scenarios, but fail in case of others.