Hi: Could anyone be able to let me know if RIO (RED with In and Out) scheme has been implemented in ns-2? I would appreciate your help on this issue. Thanks. Mahfuzur Rahman Panasonic Information & Networking Technology Lab Panasonic Technologies Inc. 2 Research Way, 3rd Floor Princeton, NJ 08540 Phone: (609) 734-7332 Fax: (609) 987-8827