[ndnSIM] NLSR llsa/nlsa traces are empty

[Sirapop Theeranantachai]

Hi Albatool,

Are you using ndnSIM-NSLR from the Hackathon (
https://github.com/3rd-ndn-hackathon/ndnSIM-NLSR) from 2017?
That version is very outdated and is not likely to be compatible with our
newer NDN code base. Although not easy, you may have a better chance
porting the current NSLR (https://github.com/named-data/NLSR) to the
current ndnSIM.

If you are trying to use the one from the 3rd Hackathon, that means you
need to build ns-3 with mostly outdated libraries, including:
1. Python2
2. Older version of modified ns-3 (
https://github.com/named-data-ndnSIM/ns-3-dev/tree/ndnSIM-v2)
3. Manually compiled CryptoPP (8.2.0 should work)
4. Tweaked wscript to skip check for installed libndn-cxx or compile and
install that older version (
https://github.com/named-data-ndnSIM/ndn-cxx/tree/787be4185c1fd41bc6a5f418974b4c9ca9ae7f46
)
5. Older Boost, which is the most challenging part. You may also prefer an
older version of the OS. You may need to cleanly remove the newer version.
I suggest doing it in an isolated environment.

Otherwise, let us know how you build ndnSIM-NLSR, so I have a better
context for advice.

On Wed, Oct 1, 2025 at 6:36 PM Albatool via ndnSIM <ndnsim at lists.cs.ucla.edu>
wrote:

> Hi all,
>
> I’m running the ndn-nlsr-simple example in ndnSIM-NLSR. I enable the NLSR
> tracers, and the tracer files are created, but llsa-trace.txt and
> nlsa-trace.txt remain empty. Other tracer outputs (hello, FIB, and sync)
> are non-empty.
>
> As a sanity check, I added one Consumer and one Producer. In that case,
> the Consumer’s Interests are eventually satisfied, but with extremely high
> delays. When I look at the FIBs, I can see that new entries are being added.
>
> What’s the likely problem, and what should I fix?
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>
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