hi all, My simulation is simple, 1 rnc, 1 bs, 4 UEs, Mpeg4 traffic flowing from IP network to the UEs. Why is it that when I am using UMHS RLC mode, packets flow through the rnc on the UMHS (recv() in um-hc.cc) mode whereas they go up the UEs through the UM (recv() in um.cc) mode ??? -- best regards, ________________________ Imad Abdeljaouad