hiii
i got the visualizer running for ns-3.11 and tried some of the example codes but when i run mesh.cc(a code for implementing HWMP) this is what i get

assert failed. cond="!m_metadataSkipped", msg="Error: attempting to
enable the packet metadata subsystem too late in the simulation, which
is not allowed.
A common cause for this problem is to enable ASCII tracing after
sending any packets. One way to fix this problem is to call
ns3::PacketMetadata::Enable () near the beginning of the program,
before any packets are sent.", file=../src/network/model/packet-
metadata.cc, line=59
Command ['/home/cpu56/ns-allinone-3.11/ns-3.11/build/debug/scratch/
mesh', '--x-size=2', '--y-size=2', '--time=10', '--packet-
interval=0.5', '--packet-size=1024', '--interfaces=1', '--pcap=0', '--
SimulatorImplementationType=ns3::VisualSimulatorImpl'] terminated with
signal SIGSEGV. Run it under a debugger to get more information (./waf
--run <program> --command-template="gdb --args %s <args>").

i did go through some of the old posts in another blog where the same problem was faced and read the solution which is to
"call Packet::EnablePrinting() early in the simulation code"
but i didnt quite understand what it exactly means.Could you please be kind enough to explain why this error occurs, how to resolve this error and how is it resolved by calling Packet:EnablePrinting() early in the code.Sorry i am new to ns3 and coding so a little hard for me to understand all this.

Thanks

hii
can someone please respond to this post??
does this query not belong to this thread??

hiii
issue resolved ...made a change in the code packet-metadata.cc ..

1 members found this post helpful.

can you help me i am starting my thesis on LTE or VLC but currently working on ns3.

I need your help Thanks

for check out the tutorial on ns-3
http://www.nsnam.org/docs/release/3....tml/index.html

also visit the forum ns3 google users ,you would find posts and discussions related to what you want

Thanks for your reply i have installed the ns3 also run multiple exmaples.

Thanks alot

But when i run lte-multiple-flows.cc but it shows error:

signal SIGSEGV. Run it under a debugger to get more information (./waf
--run <program> --command-template="gdb --args %s <args>").

Waiting for your reply

Regards

Hii
i am not familiar with lte,why dont you post your error on ns-3 google users ,all users discuss issues there and someone might help you out and sorry for delay in replying.

regards

Hi, i'm facing the same problem right now. I found your post and i'm glad that you found a solution. However, you didn't found a detailed solution. Can you tell me ( if you remember of course ) the modification you made the the file "packet-metadata.cc"?
Thank you in advance.
Regards.