XCAST6 (version 2.0) Protocol Specification
This document describes the specification of Xcast6 (Explicit Multi- unicast (Xcast) for IPv6), a new multicast scheme with complementary scaling properties: Xcast supports a very large number of small multicast sessions. Xcast achieves this by explicitly encoding the list of destinations in the data packets, instead of using a multicast group address. The difference from the experimental specification which is described in [5058] is that this version eliminates Hop-by-Hop header which sometimes suffers hardware router.