[ns] Doubt regarding running cc program and NAM
Hi, I am trying to run a sample TCL program(example.tcl) in ns2. The program is running smoothly but I am unable to see the output in nam and xgraph. For NAM,it is showing couldn't execute "nam": no such file or directory. For xgraph,it is showing couldn't execute "xgraph": no such file or directory. I have included the paths for both NAM and xgraph in bashrc file. I have one more doubt. Can you just give me the procedure to link C++ program and TCL scripts and run them succesfully? I want to run mac-802_11.cc program from mac folder in ns-2.30. and want to see the output. I am using fedora 5 and ns2.30. Will you just tell me the step by step procedure to simulate the output? This is my university project. Please try to clarify the doubts. Thanks & Regards, Swalaxmi
Re: [ns] Fwd: segmentation fault in wired cum wireless scenario usingaodv+ help
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html#_Toc121548870
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
> Of subramani
> Sent: quinta-feira, 4 de Janeiro de 2007 18:09
> To: ns list
> Subject: [ns] Fwd: segmentation fault in wired cum wireless scenario
> usingaodv+ help
>
>
> hi all,
> i have installed aodv+ for gateway discovery on ns-2.28 (redhat 9)
> aodv+ was in ns2 contributed code section
>
> it worked everything fine for all the example scripts provided..
> but when i changed the number of nodes in the given example
> wired_wireless_ex.tcl
> i received a segmentation fault
>
> i don't know wheres the fault .please atleast help me how to debug ns2
> scripts containing
> segmentation faults
>
> *
> here is the complete code
> **
> #try.tcl
>
> set opt(namfile) out.nam
> set opt(tracefile) out.tr
> set opt(x)500;#x dimension of the
> topography
> set opt(y) 500;#y dimension of the
> topography
> set opt(wirelessNodes) 6; #mobile nodes
> set opt(wiredNodes) 8; #hosts and routers
> set opt(gatewayNodes)2; #gateways
>
> set val(stop) 60.0; #simulation time
> set val(start-src) 1
> set val(stop-src)50
>
> set opt(gw_discovery)reactive; #gateway discovery method
> # ==
>
> #---
> #Initialize Global Variables
> #---
> #create a simulator object
> set ns [new Simulator]
> $ns color 0 Brown
>
> #
> #Define The Hierachial Topology Structure
> #
> $ns node-config -addressType hierarchical
> #Nbr of domains
> AddrParams set domain_num_ 3
> #Nbr of clusters (=subdomains) in each domain
> lappend clusterNbr 2 2 1
> AddrParams set cluster_num_ $clusterNbr
> #Nbr of nodes in each cluster
> lappend eilastlevel 3 2 4 4 3
> AddrParams set nodes_num_ $eilastlevel
>
> ##
>
> #create trace objects for ns and nam
> $ns use-newtrace
> set nstrace [open $opt(tracefile) w]
> $ns trace-all $nstrace
>
> set namtrace [open $opt(namfile) w]
> $ns namtrace-all-wireless $namtrace $opt(x) $opt(y)
>
>
> #create a topology object and define topology (500mx500m)
> set topo [new Topography]
> $topo load_flatgrid $opt(x) $opt(y)
>
> #Choose method for gateway discovery
> if {$opt(gw_discovery) == "proactive"} {
> Agent/AODV set gw_discovery 0
> }
> if {$opt(gw_discovery) == "hybrid"} {
> Agent/AODV set gw_discovery 1
> }
> if {$opt(gw_discovery) == "reactive"} {
> Agent/AODV set gw_discovery 2
> }
> #create wired nodes
> set temp {2.0.0 2.0.1 2.0.2 2.0.3 2.1.4 2.1.5 2.1.6 2.1.7}
> for {set i 0} {$i < $opt(wiredNodes)} {incr i} {
> set host($i) [$ns node [lindex $temp $i]]
> }
>
> #create God (General Operations Director)
> create-god [expr $opt(wirelessNodes)+$opt(gatewayNodes)]]
>
>
> #--
> #Configure for Gateway and Mobile Nodes
> #--
> #Use hierarchical addresses for GWs and MNs
>
> #configure for mobile nodes and gateways
> $ns node-config -adhocRouting AODV
> $ns node-config -llType LL
> $ns node-config -macType Mac/802_11
> $ns node-config -ifqType Queue/DropTail/PriQueue
> $ns node-config -ifqLen 50
> $ns node-config -antType Antenna/OmniAntenna
> $ns node-config -propType Propagation/TwoRayGround
> $ns node-config -phyType Phy/WirelessPhy
> $ns node-config -topoInstance $topo
> $ns node-config -channel [new Channel/WirelessChannel]
> $ns node-config -agentTrace ON
> $ns node-config -routerTrace ON
> $ns node-config -macTrace ON
> $ns node-config -movementTrace OFF
>
> #3
>
> #configure for gateways
> $ns node-config -wiredRouting ON
> #create gateway
> set gw(0) [$ns node 0.0.0]
> #set initial coordinates
> $gw(0) set X_ 100.0
> $gw(0) set Y_ 250.0
> $gw(0) set Z_ 0.0
> $ns at 0.00 "$gw(0) setdest 100 250 20"
> try
> set gw(1) [$ns node 1.0.0]
> #set initial coordinates
> $gw(1) set X_ 500.0
> $gw(1) set Y_ 250.0
> $gw(1) set Z_ 0.0
> $ns at 0.00 "$gw(1) setdest 500 250 20"
>
>
> #Define node initial position in nam
>
>
>
> #configure for mobile nodes
> $ns node-config -wiredRouting OFF
> #create mobile nodes in the same domain as gw(0)
> set temp {0.0.1 0.0.2 0.1.0 0.1.1 1.0.1 1.0.2}
> for {set i 0} {$i < $opt(wirelessNodes)} {incr i} {
> set mobile($i) [$ns node [lindex $temp [expr $i]]]
> if {$i<4} {
> $mobile($i) base-station [AddrParams addr2id [$gw(0) node-addr]]
> } else {
> $mobile($i) base-station [AddrParams addr2id [$gw(1) node-addr]]
> }
>
> }
>
> $mobile(0) set X_ 10
> $mobile(0) set Y_ 200
> $mobile(0) set Z_ 0.0
>
[ns] RE : rayleigh fading channel
Hi, I read somewhere (I am not sure but I think the authors was Günes and Vlahovic) that it isn't possible to use stochastic propagation models with Ns-2 which only supports open space propagation models. Molo. bhaskar sardar <[EMAIL PROTECTED]> a écrit : I want to model wireless channels according to rayleigh fading channel. But I have not find any such support in NS-2. Could any one tell me how can i use rayleigh fading model in ns2. __ Do You Yahoo!? En finir avec le spam? Yahoo! Mail vous offre la meilleure protection possible contre les messages non sollicités http://mail.yahoo.fr Yahoo! Mail
Re: [ns] Start a simulation with a full arp table
That is pretty much impossible because the arp cache has space only for 1 cached entry. However, it can be possible to disable the arp code altoghether, by making it return immediately with the desired MAC address. Pedro Vale Estrela > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > Of Matthew Faulkner > Sent: sexta-feira, 5 de Janeiro de 2007 10:18 > To: ns-users@ISI.EDU > Subject: [ns] Start a simulation with a full arp table > > > Hey all, > > > Maybe a simple question, but does anyone know how to start a > simulation with a full ARP table such that no ARP requests or replies > are needed. > > Thanks > > Matt
Re: [ns] flow monitor trace file + end-to-end delay & delay jitter
What mean "delay from the archive"? With this site http://140.116.72.80/~smallko/ns2/tool_en.htm you can measure all of them based on the trace file. On 1/5/07, Diana Asnani <[EMAIL PROTECTED]> wrote: > > Hi folks, > > I would like to know if there are sample tcl scripts to measure end-to-end > delay and delay jitter from the flow monitor trace files? I had only found a > script on measuring delay from the archives. Thanks a lot ! > > Diana > -- > visit my blog at http://sawkal.blogspot.com > -- Renata Vidal "Triste é o destino de quem tenta vencer as batalhas e ter sucesso nos ataques sem cultivar o espírito da iniciativa (A Arte da Guerra – SUN TSU – pg 102)"
[ns] Start a simulation with a full arp table
Hey all, Maybe a simple question, but does anyone know how to start a simulation with a full ARP table such that no ARP requests or replies are needed. Thanks Matt
[ns] rayleigh fading channel
I want to model wireless channels according to rayleigh fading channel. But I have not find any such support in NS-2. Could any one tell me how can i use rayleigh fading model in ns2.
