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[ns] Problems with LAN


I made a small tcl file with two nodes to check the LAN simulation.

the file is:
tmp.tcl:


#Create a simulator object
set ns [new Simulator]
                 

set f [open trace.1 w]
$ns trace-all  $f


proc finish {} {
                 global ns f
                 close $f
                }



#Create two nodes


set n0 [$ns node]
set n1 [$ns node]

#Create a duplex link between the nodes
#$ns duplex-link $n0 $n1 1Mb 10ms DropTail
set lan[$ns make-lan "$n0 $n1" 1Mb 10ms LL Queue/DropTail Mac/Csma/Cd]

#Call the finish procedure after 5 seconds of simulation time
$ns at 5.0 "finish"


#Run the simulation
$ns run



I am getting compilation problems:


_o14: unable to dispatch method init-vars
    while executing
"_o14 init-vars -bw 1Mb -delay 10ms -llType LL -ifqType Queue/DropTail
-macType Mac/Csma/Cd -chanType Channel"
    ("eval" body line 1)
    invoked from within
"eval $self init-vars $args"
    (procedure "_o14" line 2)
    (LanNode init line 2)
    invoked from within
"_o14 init _o3 -bw 1Mb -delay 10ms -llType LL -ifqType Queue/DropTail
-macType Mac/Csma/Cd -chanType Channel"
    (Class create line 1)
    invoked from within
"LanNode create _o14 _o3 -bw 1Mb -delay 10ms -llType LL -ifqType
Queue/DropTail -macType Mac/Csma/Cd -chanType Channel"
    invoked from within
"catch "$className create $o $args" msg"
    (procedure "new" line 3)
    invoked from within
"new LanNode $self  -bw $bw  -delay $delay  -llType $llType  -ifqType
$ifqType  -macType $macType  -chanType $chanType"
    (procedure "_o3" line 2)
    (Simulator make-lan line 2)
    invoked from within
"$ns make-lan "$n0 $n1" 1Mb 10ms LL Queue/DropTail Mac/Csma/Cd"
    (file "tmp.tcl" line 25)

Even simple simulation is not able to run.
Will very much thankful if get the solution.

seema.



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Ms. Seema T. Jadhav.            |Phone:
Research Engg.                  |Driect line to IIT: 5782545 
Department of Electrical Engg.  |Information Networks Lab 
IIT, Bombay                     |Ext: 5736,5738.
Powai, 400076.                  |Email: [email protected]
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