"Stream Control Transmission Protocol" complements [TCP] and [UDP].
Useful reading includes "SCTP for Beginners"
[http://tdrwww.exp-math.uni-essen.de/inhalt/forschung/sctp_fb/]
and http://www.sctp.de/ .

The big question for [Tclers] is whether [Tcl] deserves an SCTP-savvy
[extension].  Is [ceptcl] a good location?