content distribution feature
redundancy technology eg have the video edge-devices controlling external switches and thereby control which content is sent through the network. Another mechanism is to have the video edge-devices more closely integrated with the IP network. A typical scenario uses cost based routing mechanisms to select the best video signal where multiple video sources are available. In some cases, IP networks still suffer from packet loss and the video edge-devices have to cope with these losses and still deliver uninterrupted video signals. Forward error correction (FEC) mechanisms are built into the video edge-devices to reconstruct lost packets. The market is moving towards building intelligence into the edge- devices thereby enhancing the robustness of the entire system: cost- based routing mechanisms are already being integrated in the video devices but there is much more to come. Resource Reservation Protocol (RSVP) is a transport layer protocol designed to reserve resources across a network and is capable of improving both flexibility and robustness in contribution networks. Session Initiation Protocol (SIP) is
widely used for controlling
communication sessions such as voice and video calls over IP and it is possible that this protocol will also find its way into our professional video networks.
T-VIPS has been a pioneer in IP networks through our ASI to IP video gateways deployed in a large variety of systems including the feeding of terrestrial transmitters for digital switch-over and our JPEG2000 gateways for high quality video contribution, but our commitment to reliability doesn’t end with our video gateways.
The following solutions from the T- VIPS range of products all support automated switching: the Transport Stream (TS) monitoring switch, for the intelligent switch-over between two input signals; and the Seamless TS monitoring switch, includes flexible configuration of switching modes, the alignment of two identical TS inputs to provide seamless switching and it also enables SFN and DVB-T2 frame- aligned seamless switching. In addition, T-VIPS provides a TS Monitor to handle multiple transport stream monitoring and error detection both over ASI and IP.
T-VIPS solutions deliver:
The market is moving towards building intelligence into the edge- devices, thereby enhancing the robustness of the entire system.
• Automatic input-stream redundancy. • Improved error resilience in IP networks, with advanced FEC. • Important QoS improvements for satellite network operators through automated traffic shaping designed to protect bit rate overflow in one service affecting other services in the multiplex.
Video-centric IP networks
JPEG2000 compression, redundancy mechanisms and FEC, transport stream monitoring and intelligent switching all combine to make IP-based video- centric networks more flexible, powerful and easier to manage. IP- based transport provides high-quality content delivery and is robust, efficient, ubiquitous and flexible. It’s becoming increasingly clear that content distribution networks need to cater for more than just broadcasting content to the TV. As operators need to reach multiple device types as well as merging broadcast services with broadband content distribution, the flexibility of IP contribution networks will become even more important, with intelligent edge-devices becoming a necessity as complexity increases.
Media puzzles solved.
Front Porch Digital brings you DIVASolutions, the world leader in integrated video migration, management, and online publishing.
Our team of experienced video specialists is dedicated to supporting you 24x7 in the design, delivery and implementation of modular, scalable solutions that ensure your success.
Solutions that work the way you do. It’s that simple.
visit
fpdigital.com sales@fpdigital.com
www.ibeweb.com l march/april 2011 l ibe l 49
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