Multiple Paths for High Value Content

While ISPs aim to provide a continuous seamless service, there is always the risk of an outage. This presents a real concern when it comes to transporting high value content over IP. In order to mitigate this risk, it is important to use a protocol that supports multiple ISPs, such as RIST.

RIST can send packet retransmissions across multiple ISP networks and switch between them for the highest reliability. When content is traversing multiple networks, if one network has an issue, the other network can carry the load. This implementation is called ‘hitless switching’ or SMPTE ST 2022-7.

For additional reliability, RIST can also be used for bonding, allowing different internet connections such as LAN, 4G or 5G to be used together. Some implementations also allow for weighting so that a wired network can be prioritised over a cellular connection. In this scenario, if the wired network has an issue, the data will fall over to the cellular network. This would only happen as a last resort, in order to avoid costly data charges.

This video demonstrates how RIST can be used to transport high value content using ISPs.