  The Stream Control Transmission Protocol (SCTP) is a connection and message
oriented transport protocol. It supports multiple uni-directional streams in
each direction allowing user message sequence preservation within each stream.
This minimizes the re-sequencing delay at the receiver side in case of message
loss. The base protocol, although being optimized for small messages, supports
arbitrary large user messages by using fragmentation and reassembly at the cost
of adding delays at the sender side. To overcome this limitation, a protocol
extension called User Message Interleaving is currently being specified by the
Internet Engineering Task Force (IETF). This paper describes the new extension,
its integration and validation in the context of the INET framework.
