Data Networks
Jyrki T. J. Penttinen, Tero Jalkanen, Ilkka Keisala · 2015
Data networks are the basic building blocks for a major part of the telecommunication services today. Internet protocol (IP) is suitable for the delivery of basically all types of packet data, from the smallest local networks up to the largest ones at the international level. The explosive growth of the Internet has surprised developers and has been causing challenges in the assignment of addresses and management of routing tables. Prior to the full-scale IP concept, Asynchronous Transfer Mode (ATM) has been utilized for packet transport. This chapter presents examples about the networks that are suitable for corresponding AAL levels. In the inter-operator environment data networks are being utilized for both roaming and interconnection purposes, that is, traffic needs to find its way from the visited operator to the home operator or there's a need for exchanging traffic between two home operators.