I am trying to find out how to add a new connector element to a single
link. This element is a dropper. I can add it to every link (which isn't
very useful) but can't manage to add it to a single link.
Thus far I have tried adding the following code to ns-link.tcl:
SimpleLink instproc insert-drop {dropper} {
$self instvar ttl_
$dropper target [$ttl_ target]
$ttl target $dropper
}
I have then added an appropriate link in my simulation script using:
set l1 [$ns simplex-link $n5 $n3 1Mb 5ms DropTail]
I then create a new dropper and try to call the above function using:
$l1 insert-drop $dropper_
After recompiling everything when I try and run NS I get the error
message
Invalid command name "_o26 _o46 _o70 _o94"
while executing
"$l1 insert-drop $dropper_"
Any idea what I am doing wrong? Is there a better way of doing this?
Toby Moncaster
Future Communications Architecture
Networks Research Centre
BT Group Chief Technology Office
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