The Impact of IPv6 on Video-to-Video and Mobile Video Communications [chapter]

Latif Ladid, Ioannis P. Chochliouros
2012 IFIP Advances in Information and Communication Technology  
New technologies, viewing paradigms and content distribution approaches are about to take the TV/video services industry by storm. Five emerging trends are observable, among which is the worldwide deployment of IP Version 6 (IPv6), that are all related to the next-generation delivery of entertainment-quality video and can be capitalized upon by progressive service providers, telcos, cable operators, and ISPs. This work aims at exploring the IPv6-based evolving trends and offering practical
more » ... stions of how it could support effective growth of video-to-video and mobile video communications. It also addresses an overview of IPv6; the rapid expansion of video-based solutions in the ICT market sector; IPv6 advantages for enhanced video communications as well as QoS issues from the use of IPv6 and IPv6 multicast approaches. Service (QoS), video, web services. such services, whether in a terrestrial mode on in a satellite-based mode. IP was designed in the late 1970s-early 1980s for the purpose of connecting computers that were in separate geographic locations. Starting in the early 1990s, developers realized that the communication needs of the 21 st century required a protocol with some new features and capabilities while, at the same time, retaining the useful features of the existing protocol. Like IPv4, IPv6 is an Internet-layer protocol for packet-switched interworkings and provides end-to-end datagram transmission across multiple IP networks. IPv6 [2] was initially developed in the early 1990s because of the anticipated need for more end-system addresses based on anticipated Internet growth [3], encompassing mobile phone deployment, smart home appliances, and billions of new users in developing countries (e.g., BRIC: Brazil, Russia, India, China). Technologies and applications such as Voice-Over-IP (VoIP), "always-on access" (e.g., cable modems), broadband and/or Ethernet-to-the-home, converged networks, and evolving ubiquitous computing applications will be driving this need even more in the next few years. IPv6 is now being slowly deployed worldwide: there is documented institutional and commercial interest and activity in Europe and Asia, and there also is evolving interest in the U.S. [4] . The expectation is that in the next few years, deployment of this new protocol will occur worldwide. For example, the U.S. Department of Defense (DoD) announced that from May 2012, all procurements needed to be IPv6-capable; the DoD's goal was to complete the transition to IPv6 for all intra-and inter-networking across the agency by 2013, which was accomplished. The U.S. Government Accountability Office (GAO) has recommended that all agencies become proactive in planning a coherent transition to IPv6. The current expectation is that IPv4 will continue to exist for the foreseeable future, while IPv6 will be used for new broad-scale applications [5] . The two protocols are not directly interworkable, but tunneling and dual-stack techniques allow co-existence and coworking as well. While the basic function of the network layer internetworking protocol is to move information across networks, IPv6 has more capabilities built into its foundation than IPv4. Link-level communication does not generally require a node identifier (address) since the device in intrinsically identified with the link level address; however, communication over a group of links (i.e., a network) does require unique node identifiers (addresses). The IP address is an identifier that is applied to each device connected to an IP network. In this setup, different entities taking part in the network (servers, routers, user computers, and so on) communicate among each other using their IP address, as an entity identifier. The current IPv4 naming scheme was developed in the 1970s and had capacity for about 4.3 billion addresses, which were grouped into 255 blocks of 16 million addresses, each. In version 4 of the IP protocol, addresses consist of four octets. With IPv4, the 32-bit address can be represented as: AdrClass|netID|hostID. The network portion can contain either a network ID or a network ID and a subnet. Every network & every host (or device) has a unique address, by definition. For ease of human conversation, IP protocol addresses are represented as separated by periods, for example: 166.74.110.83, where the decimal numbers are a short hand (and correspond to) the binary code described by the byte in question (an 8 bit number takes a value in the 0-255 range). Since the IPv4 address
doi:10.1007/978-3-642-33412-2_33 fatcat:3rcaagkuw5cpveodfocxw35334