MPLS Protocol Research Paper Example | Topics and Well Written Essays - 1250 words

MPLS Protocol - Research Paper Example The current version could hold around four billion connections and since in last few years the technological advancements have brought about more devices and connections all over, for this reason IPv6 was worked out in last few years. Internet Engineering Task Force (I.E.T.F) is the entity that defines new protocol standards and hence is responsible for ensuring the new version fulfils the demands by equipping the new version with all the essentials. While the previous version was brought into practical use, little or no consideration was given to the space, and security, and it was believed that around 4 billion address spaces would be sufficient for generations, however with time those addresses ran short, and security became a more serious issue with all types of malwares, and other insurgent forces that came to the world of internet communication.(Kahng et al 2004) The need for a larger network system was felt due to the depletion of I.P address spaces and since about 2 billion p eople across the globe use internet in form of tablets, p.d.a ,smart phones, internet is part of every cafe, airport, office, educational institute , for this purpose a network was needed that could accommodate large number of upcoming connections. IP v4 provided a 32 bit address space.IPv6 users are likely to have faster connectivity. It is gaining popularity with time and need is being felt in Asia and Europe for its implementation on full scale.(Mun,young Song et al, 2005) .Internet protocol version 6 is a network layer protocol of the O.S.I model; it is termed as the next generation internet protocol, which is a new version of I.P, successor to IPv4.The main aim has been to bring about improvement and advancements in the existing version. The overall design is an improved one. The large address space (128 bits) can accommodate many more number of networks, users and devices. The addresses are arranged in eight groups of four hexadecimal digits that are separated by colons. The a ddress types are either unicast which uniquely identifies an interface on IPV6 node, while a multicast is for identifying group of interfaces and Anycast is assigned to multiple interfaces on multiple hosts (Eastep et al 2009), further there are three classes of unicast interfaces that includes link local, site local and global.6 to 4 is another technical term associated with the entire concept which enables the packet transmission of IPv6 to a version 4 network. The 6 to 4 feature allows testing and experimenting the IPV6, even if the version is not provided by the Internet service provider. Global unicast network is dedicated for the 6to4 mechanism. Gateways creates interface between the two. Salient Features of IPV-6 Large address space Stateless auto configuration Quality of service capabilities Improved Security Streamlined Protocol header Mobility IPV6 is packed with large number of improvements which includes large addressing space, and hence accommodation of more users on th e network, this is followed by mobility, which enables tablets, and other handheld devices to be connected even when on the go. A salient feature of the new version is its increased security. IPSec a security protocol is made mandatory in this version while it was only optional in case of its predecessor. Hence it makes it more secure