SCTP, where one or more endpoints are mobile and occasionally disconnected. http://www.ietf.org/rfc/rfc2960.txt http://www.ietf.org/rfc/rfc2960.txt Or protocol

SCTP, where one or more endpoints are mobile and occasionally disconnected. http://www.ietf.org/rfc/rfc2960.txt http://www.ietf.org/rfc/rfc2960.txt Or protocols for personal area networks; for instance the suite of protocols that would be needed for a personal soundtrack to follow you from your home to your vehicle to your office w/ multiple endpoints some public, some private.