An empirical evaluation of virtual circuit holding times inIP-over-ATM networks

摘要

When carrying Internet Protocol (IP) traffic over an asynchronoustransfer mode (ATM) network, the ATM adaptation layer must determine howlong to hold a virtual circuit opened to carry an IP datagram. Theauthors present a formal statement of the problem and an empirical studyof holding time policies taking network pricing into account. They findthat IP traffic shows temporal locality of reference and so leastrecently used (LRU)-based policies perform well. A system-wide timeout,which is a special case of an LRU policy, is quite effective when thetimeout value is chosen correctly. The policies proposed are easy toimplement and solve the problem satisfactorily