[ns] Protocol implementation

[Namita Dalal]

Hi!!!!
I have got the answer for the previous problem. But now my code is giving another problem. My protocol implementation is successful but it is giving following error when i use it in setup.

    (_o17 cmd line 1)
    invoked from within
"_o17 cmd if-queue _o20"
    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" $..."
    (procedure "_o17" line 2)
    (SplitObject unknown line 2)
    invoked from within
"$agent if-queue [$self set ifq_(0)]   "
    (procedure "_o14" line 18)
    (Node/MobileNode add-target line 18)
    invoked from within
"$self add-target $agent $port"
    (procedure "_o14" line 15)
    (Node attach line 15)
    invoked from within
"$node attach $ragent [Node set rtagent_port_]"
    (procedure "_o3" line 78)
    (Simulator create-wireless-node line 78)
    invoked from within
"_o3 create-wireless-node"
    ("eval" body line 1)
    invoked from within
"eval $self create-wireless-node $args"
    (procedure "_o3" line 23)
    (Simulator node line 23)
    invoked from within
"$ns_ node"
    ("for" body line 2)
    invoked from within
"for {set i 0} {$i < $val(nn) } {incr i} {
                set node_($i) [$ns_ node]
                $node_($i) random-motion 0
                # disable random motion
        }"
Pse help me for the same at the earliest as it is required for my project.

Regards
Namita

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