The multicast protocol for adding broadcast-like functionality to the Internet has been around for nearly two decades. Various technical limitations, however, have impeded its widespread adoption. Could it be making a comeback?
Yes, if for no other reason than the advent of IPv6, which activates IP multicast by default. It may also gain traction by way of secure multicast for advanced repeating of television (SMART), a technology developed by Ventura CA-based startup Worldcast.