Hi all ,I hve some quastion ,I would be grateful if anyone would answer any of them :1) I've used a cbr traffic with wpan examples -that comes with the allinone package written by Zheng& lee -and I've set the packet size 100 but at execution the packet size seem to be changing and after processing trace file I got that packet size range from 21 to 97 with average 47 ,why does this happens...2)I tried to use new trace but it gave an error why is that -I'm working on ns-2.323)can any one till what version of ns2 that execute zigbee routing ,in ns-2.32 it doesn't workthat for now..hope to hear from anyone or anything... _________________________________________________________________ Connect to the next generation of MSN Messenger http://imagine-msn.com/messenger/launch80/default.aspx?locale=en-us&source=wlmailtagline