Multicolor Licklider Transmission Protocol: An LTP Version for Future Interplanetary Links

The Licklider Transport Protocol (LTP) is the “convergence layer” of choice in Interplanetary networks based on Delay-/Disruption-Tolerant architecture. It was designed for long-delay scheduled-intermittent links, offering either a reliable or an unreliable service, with “red” and “green” parts, respectively. aim this article to present multicolor LTP, LTP version consisting series enhancements which most significant are use monochrome sessions, introduction additional orange color “notified” definition default link colors. After thorough examination basic mechanisms all variants, discusses two scenarios where seems particularly appealing: video streaming optical interplanetary links. Numerical results offer further insight into complex also highlight difference between retransmissions bundle protocol retransmissions, latter benefitting from routing reprocessing. Multicolor has already been implemented as overlay network (ION) plug-in its have proposed Consultative Committee Space Data Systems Internetworking Services Networking working group possible inclusion next specifications (LTPv2).