[ndnSIM] Interest loop problem in VNDN (v2v scenario)

DJEMAA Adel a_djemaa at esi.dz
Mon Jan 11 07:18:20 PST 2021

I haven't manipulated the deadNonce list before, nevertheless from my own
experience with ad hoc scenario in ndnSIM (using lr-WPAN as an underlay),
as I told you the producer can respond many times to the same Interest with
the same Name and Nounce (I have personally verified it).
For your second concern, I can't give you right now a
comprehensive explanation and/or guidance because I have no experience with
v2v scenarios in ndnSIM.
Hope this helps.

Le lun. 11 janv. 2021 à 09:55, Sonia <zohanoor67 at gmail.com> a écrit :

> Hi,
> Thanks, but will the DeadNonce list not prevent it? The PIT entry is
> deleted but duplicate nonce could be found in DeadNonce list. Isn't it?
> For my 2nd concern, I have made a scenario of 50 ad-hoc nodes moving in a
> certain direction. I have added Ad-hoc netdevice transport as done in the
> example (
> https://github.com/4th-ndn-hackathon/ndnSIM-Mobile-Simulation-Package/blob/master/examples/ndn-v2v-simple.cpp
> )
> Is that all to make an ad-hoc v2v scenario? or please guide me if I am
> missing something?
> Thank you
> On Mon, Jan 11, 2021 at 5:43 PM DJEMAA Adel <a_djemaa at esi.dz> wrote:
>> Hi,
>> for your first concern, once the producer responds to an interest packet,
>> it deletes the correspondent PIT entry. Consequently, if the same interest
>> is received by this producer it will respond to it again (whatever from the
>> CS or from the application), because there is no duplicate Interest
>> detection in the PIT, since it has been deleted previously. So, even if the
>> producer receives X interests with the same Name and Nounce, it will
>> respond X time.
>> Hope that helps.
>> Le lun. 11 janv. 2021 à 08:41, Sonia via ndnSIM <ndnsim at lists.cs.ucla.edu>
>> a écrit :
>>> Hi,
>>> I have two concerns.
>>> 1: In my v2v scenario, the producer receives X number of the same
>>> Interest packet via multipath communication. The producer replies X time
>>> with Data. What I understand is that it should reply only 1 time
>>> considering the duplicate PIT and DeadNonce list check in Incoming interest
>>> pipeline.
>>> 2: In my v2v ad-hoc scenario, the first 3 packets receive correctly.
>>> however, Interest for the next chunk of data starts looping in the network.
>>> This does not happen with contenstore enable. Only happens when I disable
>>> the content store. Moreover, this Interest also receives hundred and
>>> thousand of times to producer and each time the producer responds with data
>>> which never reaches the consumer.
>>> Thank you
>>> _______________________________________________
>>> ndnSIM mailing list
>>> ndnSIM at lists.cs.ucla.edu
>>> http://www.lists.cs.ucla.edu/mailman/listinfo/ndnsim
>> --
>> Mr DJAMA Adel
>> Phd student
>> Ecole Militaire Polytechnique
>> Algiers 16046, ALGERIA

Phd student
Ecole Militaire Polytechnique
Algiers 16046, ALGERIA
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