Satellite Networking: Principles and Protocols, 2nd Edition

Chapter 6Internet Protocol (IP) over Satellite Networks

This chapter aims to provide an introduction to the Internet protocol (IP) over satellite networks. It explains satellite networking from different viewpoints: protocol centric, network centric and satellite centric. It also explains: how to encapsulate IP packet into different frames of different network technologies; IP extensions including IP multicast, IP security and IP QoS; the concepts of DVB over satellite (DVB-S and DVB-RCS) and the new generation DVB-S2 and DVB-RCS2; and IP QoS architectures. When you have completed this chapter, you should be able to:

• Understand the concepts of satellite IP networking.
• Understand IP packet encapsulation concepts.
• Describe different views of satellite networks.
• Describe IP multicast over satellite.
• Explain DVB and related protocol stack.
• Explain DVB over satellite including DVB-S/S2 and DVB-RCS/RCS2.
• Explain IP over DVB-S and DVB-RCS security mechanisms.
• Knows IP QoS performance objectives and parameters and QoS architectures of Intserv and Diffserv.

6.1 Different Viewpoints of Satellite Networking

Like terrestrial networks, satellite networks are mainly carrying more and more Internet and digital broadcasting traffic, which has well exceeded the telephony traffic. Until recently, Internet traffic is mainly due to classical Internet services and applications, such as WWW, FTP and emails. Satellite networks only need to support the classical Internet network applications in ...