olsr in ns2

[nuraina hazirah ibrahim]

hi sir, i am analysing data transmission in olsr including the performance metrics like throughput, dropped data and end-to-end delay. i generate the network environment from osm sumo. below i attached the link to my tcl, awk, mobility model and network route files. i get below error after running the tcl file. can you help me to solve this problem and can you check as well whether my awk file is correct because i can't get the dropped data value. please help me sir.
gdrive link : https://drive.google.com/drive/folders/15LLcAPMSiEHFC9dLnAenHT1Y7NazAiNt?usp=sharing

can't read "agent_addr_": no such variable
    while executing
"subst $[subst $var]"
    (procedure "_o488" line 5)
    (Object next line 5)
    invoked from within
"_o488 next agent_addr_"
    ("eval" body line 1)
    invoked from within
"eval $self next $args"
    (procedure "_o488" line 11)
    (Object next line 11)
    invoked from within
"_o488 next agent_addr_"
    ("eval" body line 1)
    invoked from within
"eval $self next $args"
    (procedure "_o488" line 13)
    (Application/Traffic/CBR set line 13)
    invoked from within
"$dst set agent_addr_"
    (procedure "_o3" line 2)
    (Simulator simplex-connect line 2)
    invoked from within
"$self simplex-connect $dst $src"
    (procedure "_o3" line 10)
    (Simulator connect line 10)
    invoked from within
"$ns_ connect $cbr($i) $tcp($i)"
    ("for" body line 6)
    invoked from within
"for {set i 0} {$i < $val(nn)-1} {incr i} {
    set cbr($i) [new Application/Traffic/CBR]
    $cbr($i) set packetSize_ 1000
    $cbr($i) set rate_ 1mb
..."
    (file "peta.tcl" line 89)

[knudfl]

Hi.

"agent definition" → line 89
I have never seen a combination of TCP and CBR written in that way.
See ns-2.35/tcl/mobility/scene/cbr-3-test for a simple example.

I edited peta.tcl into two examples, 2-peta-2.tcl and 3-peta-3.tcl with valid traffic files: tcp20-20 and traffic-20-rate.2

About "mobility": The SUMO created file is for 50 nodes. I used another SUMO created file = mobmod-urban-malaga-S20.tcl

Link to 2-peta-2.tcl, 3-peta-3.tcl, tcp20-20, traffic-20-rate.2, mobmod-urban-malaga-S20.tcl →  https://drive.google.com/drive/folders/1fL321zuYQEzenr8d9m-zVfvleLlyTu7t?usp=sharing
--------

OLSR examples, olsr-examples-09.19.tar.gz
https://drive.google.com/file/d/19Q_nEXAP4DRFL3gx7a9fLEx5RQe-X9Ce/view?usp=sharing
... and https://neo.lcc.uma.es/staff/jamal/vanet/index.html%3Fq=node%252F11.html

[nuraina hazirah ibrahim]

thank you sir!

[knudfl]

About 'peta.awk' :

$ ns235-olsr-64 2-peta-2.tcl   → peta.tr 9.5MB is created

$ ns235-olsr-64 3-peta-3.tcl   → peta.tr 9.5MB is created

Same "awk analyzing" result from both peta.tr :

$ awk -f peta.awk peta.tr
Average End-to-End Delay = 676.406 ms
Generated Packets = 22832
Received Packets = 21107
Throughput = 426.43
Dropped Packets = 0
Total Dropped Data = 0 bytes

[nuraina hazirah ibrahim]

tq sir!

[Hameurlaine Hicham]

Hi all, I hope you are doing well, I want to get the packet loss and end to end delay using olsr with an area with obstacle, 

my question is how do I simulate the obstacles?

kind regard

[knudfl]

@hichamham...

Hint ns2

https://www.researchgate.net/post/How_to_create_obstacles_with_in_network_in_ns_2

Hint ns3, please see pages 13... 16

https://www.nsnam.org/wp-content/uploads/2015/03/WNS3_2015_Obstacle_Model.pdf

?More with Google:       ns2 obstacle model

[hicham hicham]

@ knudfl

Thank you so much for your support, please, how can I modify the basic version of olsr? should I install a new patch? kind regard

[knudfl]

@ham.hi... ,      Hi.

How to modify basic OLSR?       Modify some C++ code xxx.cc, etc. tcl/lib/ns-[file].tcl

Examples https://drive.google.com/drive/folders/0B7S255p3kFXNZ2lWZDBRSW40Q00?resourcekey=0-eBw6mJFKhSVGultqaD2rDA&usp=sharing

→

cope+olsr_ns235.patch
Geo3D+olsr_ns235.patch
mpolsr_umolsr-v1_ns235.patch
OLSR-Dream_ns235.patch  (Lar, Dream)
OLSR_for-Antnet-patched_ns235.patch
olsr-for_LAR-patched_ns235.patch
umolsr_for-zrp-patched_ns235.patch

A patch is not required to modify some code, but when code has been modified, a patch can be created with the diff command : if you want 1. to present the code in one file, 2. to present an easy install with of code, 3. etc. easy storage of the code.

diff -Naur orig_ns-2.35/ ns-2.35(modified) > patch-name_ns235.patch

[Hameurlaine Hicham]

thank you Sir, @knudfl, please how to modify olsr protocol as  changing the computation of willingness....  

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[knudfl]

Example,  willingness
https://www.researchgate.net/publication/41845947_Enhancing_the_%27Willingness%27_on_the_OLSR_Protocol_to_Optimize_the_Usage_of_Power_Battery_Power_Sources_Left

On Thursday, August 10, 2023 at 3:57:44 PM UTC+2 ham.hi...@gmail.com wrote: