Actually my topic title may be misleading. But I have question about timers in NS2.

For example I have function that sends a packet to arbitrary destination. Question is, is timers in ns2 equal to the calling function multiple time in TCL? To be more clear;

a is arbitrary number in tcl

$ns at 0.20 "[$node_($a) set ragent_] function"

$ns at 0.40 "[$node_($a) set ragent_] function"

$ns at 0.60 "[$node_($a) set ragent_] function"

$ns at 0.80 "[$node_($a) set ragent_] function"

$ns at 1.00 "[$node_($a) set ragent_] function"

Will this code be enough to sending packet at intervals of 0.2 sn.

Thanks in advance.