error while assigning mobile nodes in ns-2
 

hi
i totally new to linux and network simulator so i have absolutely no clue as to what this error means. when i try to initialize a few mobile nodes in network simulator 2 i get a few errors with the node-config statement

this is my program code :

$ns_ node-config -adhocRouting $val(adhocRouting) \
-llType $val(ll) \
-macType $val(mac) \
-ifqType $val(ifq) \
-ifqLen $val(ifqlen) \
-antType $val(ant) \
-propType $val(prop) \
-phyType $val(netif) \
-channelType $val(chan) \
-topoInstance $topo \
-agentTrace ON \
-routerTrace OFF \
-macTrace ON

the error i get is :

num_nodes is set 10
can't read "val(ll)": no such element in array
while executing
"$ns_ node-config -llType $val(ll) \
-macType $val(mac) \
-ifqType $val(ifq) \
-ifqLen $val(ifqlen) ..."
(file "wireless.tcl" line 19)

any kind of suggestions r welcome as i am totally stumped. thanking you

hari

Same Problem
 

Hey, I was looking for help with the same problem and I came across your thread.

Did you solved your problem? I will be glad if you can please provide me the solution you got with your problem !!!!

Running Wireless Simulations in ns
 

Hi,

You will define your options in your TCL file as follows.

# ======================================================================
# Define options
# ======================================================================
set val(chan) Channel/WirelessChannel ;# channel type
set val(prop) Propagation/TwoRayGround ;# radio-propagation model
set val(ant) Antenna/OmniAntenna ;# Antenna type
set val(ll) LL ;# Link layer type
set val(ifq) Queue/DropTail/PriQueue ;# Interface queue type
set val(ifqlen) 50 ;# max packet in ifq
set val(netif) Phy/WirelessPhy ;# network interface type
set val(mac) Mac/802_11 ;# MAC type
set val(rp) DSDV ;# ad-hoc routing protocol
set val(nn) 2 ;# number of mobilenodes

Also you will find detailed example from https://www.isi.edu/nsnam/ns/tutorial/nsscript5.html website.

Have a nice simulations...