[ndnSIM] how to modify nonce field in Interest packet

[yao hu]

Hi Alex,

Thanks for your answer. I am sorry there is one more question after this.
How to re-send timed out interest to all faces, not retransmit it to the
same face again? Do I have to write my own "customConsumer", and do the
following
ndn::AppHelper consumerHelper ("customConsumer");
ApplicationContainer consumer = consumerHelper.Install (node);

Am I right? Thanks a lot~

Regards,
huyao



2013/4/29 Alex Afanasyev <alexander.afanasyev at ucla.edu>

> Hi huyao,
>
> Actually, each retransmitted Interest by ndn::Consumer* application gets
> its own "unique" (random) nonce.
>
> Consumer::CheckRetxTimeout method (
> https://github.com/NDN-Routing/ndnSIM/blob/master/apps/ndn-consumer.cc#L122)
> is responsible for detecting and scheduling retransmission of Interest.
>
> ---
> Alex
>
> On Apr 28, 2013, at 7:12 PM, yao hu <huyao0107 at gmail.com> wrote:
>
> Hi Alex,
>
> Thanks for your reply. I see.
>
> One more question is about interest time out or retransmission. Is there a
> method or function to deal with Interest retransmission or retransmission
> queue in ndnsim? How about adding a new value to the nonce field in
> retransmission Interest packet to differentiate it from the orginal one?
>
> I assume that by default the original Interest and the retransmission
> Interest if timeout happens should be the same format, right?
>
> Thanks a lot ~
>
> Regards,
> huyao
>
>
>
> 2013/4/29 Alex Afanasyev <alexander.afanasyev at ucla.edu>
>
>> Hi huyao,
>>
>> (1) The application is fully responsible to put the nonce into the
>> interests. ndn::Consumer-based applications put nonce from uniform
>> distribution (
>> https://github.com/NDN-Routing/ndnSIM/blob/master/apps/ndn-consumer.cc#L206
>> )
>>
>> (2) There is  GetNonce() method for ndn::Interest class
>>
>> (3) If you write your own app, you just set nonce using SetNonce method.
>>  If you want to reuse existing consumers, then you probably need to change
>> their implementation to some extent.
>>
>> ---
>> Alex
>>
>> On Apr 28, 2013, at 7:06 AM, yao hu <huyao0107 at gmail.com> wrote:
>>
>> Hi Alex,
>>
>> ndnsim documents says nonce field is filled with a value of uint32_t
>> type. Could you please tell
>>
>> (1) what value is filled in nonce field in the current Interest packet
>> implementation.
>>
>> (2) how to get the nonce value when receiving Interest packet?
>>
>> (3) is it possible to fill a self-defined value into nonce field?
>>
>> Thanks very much!
>>
>> Regards,
>> huyao
>> _______________________________________________
>> ndnSIM mailing list
>> ndnSIM at lists.cs.ucla.edu
>> http://www.lists.cs.ucla.edu/mailman/listinfo/ndnsim
>>
>>
>>
> _______________________________________________
> ndnSIM mailing list
> ndnSIM at lists.cs.ucla.edu
> http://www.lists.cs.ucla.edu/mailman/listinfo/ndnsim
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.lists.cs.ucla.edu/pipermail/ndnsim/attachments/20130502/75589115/attachment.html>