[ndnSIM] stop producer from forwarding interests

Shahid Md. Asif Iqbal asifcsep at gmail.com
Sun Apr 3 23:00:33 PDT 2016

Thanks Junxiao,
You got my view point. Can you please specify which file(s) I need to work
out with.


On Sun, Apr 3, 2016 at 11:07 PM, Junxiao Shi <shijunxiao at email.arizona.edu>

> Hi Asif
> As I understand, your scenario is:
>    - The network has multiple nodes.
>    - A producer application is running on the node P, and it serves
>    contents under namespace ndn:/P.
>    - Node P is using the multicast strategy.
>    - Node P has a default route ndn:/ toward other peer nodes such as Q
>    and R.
>    - You are observing that, when an Interest starting with ndn:/P is
>    received by node P, it's not only forwarded to the producer application,
>    but also forwarded to Q and R.
>    - You want the Interest to be forwarded only to the producer
>    application, but not to other nodes.
> The behavior occurs because the FIB entry ndn:/P contains not only the
> producer application but also nodes Q and R. Although there isn't a route
> ndn:/P toward Q or R, these two nexthops appear in the FIB entry due to
> route inheritance (see NFD Developer Guide, "RIB Management - FIB Updater -
> Route Inheritance Flags" section).
> To achieve the desired behavior, the FIB entry ndn:/P should contain only
> the producer application. One way to do that is setting the CAPTURE flag in
> the prefix registration command sent from the producer application.
> Yours, Junxiao
> On Sun, Apr 3, 2016 at 12:32 AM, Shahid Md. Asif Iqbal <asifcsep at gmail.com
> > wrote:
>> I was trying to mean that apart from answering an interest with data
>> packet a producer forwards the same interest to other nodes connected to
>> it. As, I found this while dealing with the multicast strategy. And, I want
>> to stop the producer from doing that forwarding or broadcasting.
>> On Sat, Apr 2, 2016 at 5:13 AM, Shahid Md. Asif Iqbal <asifcsep at gmail.com
> > wrote:
>> How can I stop a producer from forwarding an interest requesting the
>> content owned by itself? As, I found that producer do not stop interests
>> while I was using some ideas with multicast strategy.
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