[ndnSIM] stop producer from forwarding interests

[Shahid Md. Asif Iqbal]

Dear Sabet,
Can you please draw the scenario here you tried with? And, can you please
try this scenario with only one prefix name "/prefix" for all producers and
the consumer requesting for the only prefix.


 *    ( ) ----- ( ) ----- ( ) ----- (c) ------ ( ) ----- ( ) ----- ( )
 *     |         |         |         |          |         |         |
 *     |         |         |         |          |         |         |
 *    ( ) ----- ( ) ----- ( ) ----- ( ) ------ ( ) ----- ( ) ----- ( )
 *     |         |         |         |          |         |         |
 *     |         |         |         |          |         |         |
 *    ( ) ----- ( ) ----- ( ) ----- ( ) ------ ( ) ----- ( ) ----- ( )
 *     |         |         |         |          |         |         |
 *     |         |         |         |          |         |         |
 *    ( ) ----- ( ) ----- ( ) ----- (p) ------ ( ) ----- ( ) ----- (p)
 *     |         |         |         |          |         |         |
 *     |         |         |         |          |         |         |
 *    ( ) ----- ( ) ----- ( ) ----- ( ) ------ ( ) ----- ( ) ----- ( )
 *     |         |         |         |          |         |         |
 *     |         |         |         |          |         |         |
 *    ( ) ----- ( ) ----- ( ) ----- ( ) ------ ( ) ----- ( ) ----- ( )
 *     |         |         |         |          |         |         |
 *     |         |         |         |          |         |         |
 *    ( ) ----- ( ) ----- ( ) ----- (p) ------ ( ) ----- ( ) ----- (p)


Thanks
Asif

On Mon, Apr 4, 2016 at 1:10 PM, Muhammad Hosain Abdollahi Sabet <
M.AbdollahiSabet at mail.sbu.ac.ir> wrote:

> Asif,
> Junxiao,
>
> Having wondered about the situation you explained, I tried to simulate a
> similar scenario. Produce node Pnode(responsible for /p prefix) is
> connected to other nodes than consumer node, directly. I tried with both
> default route(/) and GlobalRoutingHelper in place, separately. In both
> cases, forwarding strategy for all nodes was set to "multicast". But Pnode
> does not forward interests with /p in their name. For being sure, I've
> created another produce Onode responsible for /o prefix. My topology makes
> interest for prefix /o pass through Pnode. In Onode PIT I can see entries
> for /o. But no entry for /p is created because Onode does not receive
> interests for prefix /p form Pnode.
> Could you elaborate a bit more on the situation you're referring to?
>
> Thanks,
> Sabet
>
> ---------- Forwarded message ----------
> From: Shahid Md. Asif Iqbal <asifcsep at gmail.com>
> Date: Mon, Apr 4, 2016 at 10:30 AM
> Subject: Re: [ndnSIM] stop producer from forwarding interests
> To: Junxiao Shi <shijunxiao at email.arizona.edu>
> Cc: ndnsim <ndnsim at lists.cs.ucla.edu>
>
>
> Thanks Junxiao,
> You got my view point. Can you please specify which file(s) I need to work
> out with.
>
> Thanks,
> Asif
>
> On Sun, Apr 3, 2016 at 11:07 PM, Junxiao Shi <shijunxiao at email.arizona.edu
> >
> wrote:
>
> > 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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