Multicast deflector

Abstract Technological evolution is leading telecommunications toward all-IP scenarios, where multiple services are transported as IP packets. Among these services is the broadcast of video. A possible mechanism for broadcasting multiple video channels over IP is to use IP multicast, and let each client decide about the reception of a channel. The secure IP multicast specified by the IETF MSEC working group is a candidate solution for securing these broadcast services. In this paper we propose a new solution for supporting the broadcast of multiple video channels which can be accessed only by authorized users; besides, when a video channel is not visualized in the last mile its transmission is temporarily suspended, so that the cable can be used for other services such as standard Internet access. Keywords Group communications

• Type: Journal
• Year: 2008
• Where: TELSYS
• Authors: António Pinto, Manuel Ricardo
• Keywords: Abstract Technological Evolution, Multicast, Multiple Video Channels, TELSYS 2008