[ndnSIM] Discovery Protocol Error

Mateus Sousa mateus.aluufc at gmail.com
Thu Aug 10 19:09:52 PDT 2017


Actually, every node is a "producer" and a "consumer" (apps modified),
because they are constantly sending "hello" packets and receiving "hello"
packets. I think the error happens because the other app in consumer is
self-providing the "hello" from its CS. Take a look on my output with both
apps installed on the same node:

0s 1 ndn.Reply:StartApplication()
0s 2 ndn.Reply:StartApplication()
1s 2 ndn.Reply:OnInterest(0x178cdd0, 0x17cf160)
1s 2 ndn.Reply:OnInterest(): [INFO ] node(2) Received HELLO message from 2
    node(1) No surrogate found
2s 2 ndn.Reply:OnInterest(0x178cdd0, 0x17cf160)
2s 2 ndn.Reply:OnInterest(): [INFO ] node(2) Received HELLO message from 2
3s 2 ndn.Reply:OnInterest(0x178cdd0, 0x17cf160)
3s 2 ndn.Reply:OnInterest(): [INFO ] node(2) Received HELLO message from 2
4s 2 ndn.Reply:OnInterest(0x178cdd0, 0x17cf160)
4s 2 ndn.Reply:OnInterest(): [INFO ] node(2) Received HELLO message from 2
5s 2 ndn.Reply:OnInterest(0x178cdd0, 0x17cf160)
5s 2 ndn.Reply:OnInterest(): [INFO ] node(2) Received HELLO message from 2
6s 2 ndn.Reply:OnInterest(0x178cdd0, 0x17cf160)
6s 2 ndn.Reply:OnInterest(): [INFO ] node(2) Received HELLO message from 2
7s 2 ndn.Reply:OnInterest(0x178cdd0, 0x17cf160)
7s 2 ndn.Reply:OnInterest(): [INFO ] node(2) Received HELLO message from 2
8s 2 ndn.Reply:OnInterest(0x178cdd0, 0x17cf160)
8s 2 ndn.Reply:OnInterest(): [INFO ] node(2) Received HELLO message from 2
9s 2 ndn.Reply:OnInterest(0x178cdd0, 0x17cf160)
9s 2 ndn.Reply:OnInterest(): [INFO ] node(2) Received HELLO message from 2


2017-08-10 22:10 GMT-03:00 Spyridon (Spyros) Mastorakis <
mastorakis at cs.ucla.edu>:

> Hi,
>
> I would guess that for step 2, you have installed some producer
> application somewhere that announces the “/Hello” prefix.
>
> Hope that this helps,
>
> Spyridon (Spyros) Mastorakis
> Personal Website: http://cs.ucla.edu/~mastorakis/
> Internet Research Laboratory
> Computer Science Department
> UCLA
>
> On Aug 10, 2017, at 5:13 PM, Mateus Sousa <mateus.aluufc at gmail.com> wrote:
>
> Dear all,
>
> I'm developing a discovery protocol that peforms the following steps:
>
> 1º. Node send a "special Interest' with its ID and its mob. infos (prefix:
> /Hello/ID);
> 2º  At the same time it installs another app that adds the prefix
> "/Hello/" in his FIB, to reply its neighbours; <- At this point I'm getting
> problems, because the node it's self-replying and isn't forwarding the
> interests.
>
> Can anyone give a solution for that?
>
> Thanks in advance.
>
>
>
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