Hi: I want to simulate a multi-constrained routing algorithm in MPLS environment with ns2.28. Who can tell me if ns2.28 support the simulation and how to modify the ns's default routing algorithm? I will thanks very much for your help. --------------------------------- Do You Yahoo!? ×¢²áÊÀ½çÒ»Á÷Æ·ÖʵÄÑÅ»¢Ãâ·ÑµçÓÊ