Hello ns users! I am using ns 2.29 on Mandriva 2006 and i'm trying to run a simulation with 50 nodes using the DSDV routing protocol, in order to obtain a graphic representation of the parameteres. I have begun with the wireless-dsdv-newnode.tcl script in the ns-allinone-2.29/ns-2.29/tcl/ex directory. I have copied the script in the ns-2.29/tcl/mobility directory, because the tcl script uses a file from the mobility directory.When i try to run the script, a get the error message: num_nodes is set 50 (_o16 cmd line 1) invoked from within "_o16 cmd random-motion 0" invoked from within "catch "$self cmd $args" ret" invoked from within "if [catch "$self cmd $args" ret] { set cls [$self info class] global errorInfo set savedInfo $errorInfo error "error when calling class $cls: $args" $..." (procedure "_o16" line 2) (SplitObject unknown line 2) invoked from within "$node_($i) random-motion 0 " invoked from within "if { [string compare $opt(rp) "dsr"] == 0} { for {set i 0} {$i < $opt(nn) } {incr i} { dsr-create-mobile-node $i } } elseif { [string compare $op..." (file "wireless-dsdv-newnode.tcl" line 176) Anybody can help me solve the problem? And another question related to this script:assuming i'll run the script and get the trace file, how can i use the data in the trace file to get a graphical representation of the packet delivery ratio and other parameters, using xgraph? Any sugestion would help me very much...please give me a hint. Thank you in advance! Alexandra --------------------------------- How low will we go? Check out Yahoo! Messengers low PC-to-Phone call rates.