A system for optimally mapping circuits into packets based on round trip delay (RTD), and a system for measuring RTD for use in packet communications systems such as circuit emulation (CEM) systems is disclosed. The measured RTD value can be used in a system that adjusts packet size to reduce capture...http://www.google.de/patents/US6768748?utm_source=gb-gplus-sharePatent US6768748 - Flexible mapping of circuits into packets
