Turn on nam tracing in your Tcl script
- As easy as turning on normal tracing
$ns namtrace $file
Specify link orientation (or node position for
wireless)
$ns duplex-link-op $node1 $node2 orient left
Execute nam
exec nam $filename
Node options — color, shape, label
$node color red
$node shape hexagon
$node label “my text”
$node label-color blue
$node label-at up
Link options
$ns duplex-link-op $n1 $n2 color green
$ns duplex-link-op queuePos right
$ns duplex-link-op $n1 $n2 label “my text”
$ns duplex-link-op $n1 $n2 label-color blue
$ns duplex-link-op $n1 $n2 label-at down
Packet colors
$ns color $n blue
$agent set fid_ $n
Annotation
$ns at $time “$ns trace-annotate $text”
Control playback
$ns set-animation-rate 3ms
- As easy as turning on normal tracing
$ns namtrace $file
Specify link orientation (or node position for
wireless)
$ns duplex-link-op $node1 $node2 orient left
Execute nam
exec nam $filename
Node options — color, shape, label
$node color red
$node shape hexagon
$node label “my text”
$node label-color blue
$node label-at up
Link options
$ns duplex-link-op $n1 $n2 color green
$ns duplex-link-op queuePos right
$ns duplex-link-op $n1 $n2 label “my text”
$ns duplex-link-op $n1 $n2 label-color blue
$ns duplex-link-op $n1 $n2 label-at down
Packet colors
$ns color $n blue
$agent set fid_ $n
Annotation
$ns at $time “$ns trace-annotate $text”
Control playback
$ns set-animation-rate 3ms
Hi sir,
ReplyDeleteI have installed successfully ns2.34 in fedora 14 without any errors.
I set-up all the PATHS.
after $ ns, i am getting the % sign
but when I enter the "ns simple.tcl" command ,the shell shows this error below:
ns: finish: couldn't execute "nam": permission denied
while executing
"exec nam lab2.nam &"
(procedure "finish" line 6)
invoked from within
"finish"
Please help me sir to correct this error...
Hi,
DeleteYou need to check permissions given to ns-allinone-2.34. As the error shows permission error.
Network Simulator - 2: Nam Coding >>>>> Download Now
Delete>>>>> Download Full
Network Simulator - 2: Nam Coding >>>>> Download LINK
>>>>> Download Now
Network Simulator - 2: Nam Coding >>>>> Download Full
>>>>> Download LINK FP
I checked the permission sir.It is having permission as below..
ReplyDeletedrwxr-xr-x. 18 vidya vidya 4096 Jan 10 03:47 ns-allinone-2.34
Please tell me what changes I have to make in permission
hello sir
ReplyDeleteiwan to modified dsr.cc by using this code
void MDSRAgent::getRouteForPacket(SRPacket &p, bool retry)
{
Entry *e = request_table.getEntry(p.dest);
Time time = Scheduler::instance().clock();
if snooze==1&&recv.ACK==1
SRPacket rrp = p;
rrp.pkt = p.pkt->copy();
hdr_sr *srh = hdr_sr::access(rrp.pkt);
hdr_ip *iph = hdr_ip::access(rrp.pkt);
hdr_cmn *cmh = hdr_cmn::access(rrp.pkt);
iph>daddr()=Address::instance().create_ipaddr(p.dest.getNSAddr_t(),RT_PORT);
iph->dport() = RT_PORT;
iph>saddr()=Address::instance().create_ipaddr(net_id.getNSAddr_t(),RT_PORT);
iph->sport() = RT_PORT;
cmnh->ptype() = PT_DSR;
cmnh->size() = size_;
cmnh->num_forwards() = 0;
}#endif
void TcpBuS::RouteError(SRPacket& p)
{
hdr_sr *srh = hdr_sr::access(p.pkt);
if (!srh->route_error())
return;
ID who = ID(srh->down_links()[srh->num_route_errors()-1].tell_addr, ::IP);
if (who != net_id && who != MAC_id)
{
return;
if (ch->num_forwards() > rt->rt_hops) {
local_rt_repair(rt, p);
{
return = RERR_L;
if(rt->rt_flags == RTF_UP) {
assert(rt->rt_hops != INFINITY2);
forward(rt, p, NO_DELAY);
{
return = RERR_S;
}
void MDSR::newack(Packet* pkt)
{
hdr_tcp *tcph = hdr_tcp::access(pkt);
register int ackno = tcph->ackno();
int progress = (ackno > highest_ack_);
if (ackno == maxseq_) {
cancel_rtx_timer(); // all data ACKd
} else if (progress) {
set_rtx_timer();
}
if (progress)
highest_ack_ = ackno;
if (t_seqno_ < highest_ack_)
t_seqno_ = highest_ack_; // seq# to send next
hdr_flags *fh = hdr_flags::access(pkt);
iph>daddr()=Address::instance().create_ipaddr(p.dest.getNSAddr_t(),RT_PORT);
iph->dport() = RT_PORT;
iph>saddr()=Address::instance().create_ipaddr(net_id.getNSAddr_t(),RT_PORT);
iph->sport() = RT_PORT;
}
when i add this code in this then we get error
dsr/dsragent.cc:357:17: error: expected type-specifier before ‘TcpBus’
dsr/dsragent.cc:357:17: error: expected ‘)’ before ‘TcpBus’
dsr/dsragent.cc:357:23: error: cannot convert ‘int*’ to ‘TclObject*’ in return
dsr/dsragent.cc: In member function ‘void DSRAgent::getRouteForPacket(SRPacket&, bool)’:
dsr/dsragent.cc:1489:5: error: ‘snooze’ was not declared in this scope
dsr/dsragent.cc:1489:18: error: ‘recvack’ was not declared in this scope
dsr/dsragent.cc:1530:3: error: ‘endif’ was not declared in this scope
dsr/dsragent.cc:1532:3: error: expected ‘;’ before ‘srh’
dsr/dsragent.cc:1519:11: warning: unused variable ‘srh’ [-Wunused-variable]
dsr/dsragent.cc:1596:6: error: ‘TcpBuS’ has not been declared
dsr/dsragent.cc:1597:1: error: a function-definition is not allowed here before ‘{’ token
dsr/dsragent.cc:2852:1: error: expected ‘}’ at end of input
dsr/dsragent.cc: In member function ‘virtual TclObject* TcpBusClass::create(int, const char* const*)’:
dsr/dsragent.cc:358:3: warning: control reaches end of non-void function [-Wreturn-type]
dsr/dsragent.cc: At global scope:
dsr/dsragent.cc:95:12: warning: ‘dsr_salvage_max_attempts’ defined but not used [-Wunused-variable]
make: *** [dsr/dsragent.o] Error 1
HI,
DeleteCheck the variable TcpBus. I think you need to check the header files.
sir i want to reduse end to end delay in dsr routing protocl which modification required in dsragent.cc file also cache mechanisum
DeleteSir I wanted to partition NAM into hexagonal grids and I will have place a single node per grid in order to make uni-cast Route Request my using AODV protocol.
ReplyDeletePlease help me in my project..
Thinking you..
Hi,
DeleteYou can use NSG2.1 tool for developing TCL script.
hello sir
ReplyDeletei want to reduce end to end delay in dsr rouing protocol. which modification required in dsr agent and cache mechanisum.
This comment has been removed by the author.
ReplyDeleteHi Sir ,
ReplyDeleteAm a PG student.
I need to run ns2 simulation in which out.nam should show nodes with ipadresses instead of node numbers this is needed in my academic project can you help.
Hi,
DeleteThere in no IP address in NS2.
please mail bskolkur@gmail.com
ReplyDeleteHi,
Deletei am doing ns2project in geographic routing. i need ur help.. my mail id-
ReplyDeletejasper.ramu@gmail.com
please mail if u have coding in Geographic routing..
ReplyDeleteand basic ns2 program
Thanks in advance
jasper.ramu@gmail.com
Hi,
DeleteYou will get it in contributed codes.