[Ndn-interest] Testbed architecture

[Matteo Bertolino]

Dear Christos,
thank you for your answer. Yes I expressed bad myself, however the  
point of my question was your sentece:

"In many cases the face will use an IP tunnel to get to the next hop."

I would like to deepen this point actually. Precisely, how? Is it a  
TCP tunnel, an UDP tunnel, do you know where I can check how this  
tunnel is created?

Thank you very much.
Yours,
Matteo


Quoting Christos Papadopoulos <christos at colostate.edu>:

> Matteo,
>
> Are you connected to the NDN testbed through a node local to you? If
> yes, you would send an interest to your local NDN node, and that node
> will in turn route your interest to the closest node that advertises
> the content you are looking for.
>
> Remember that with NDN you no longer communicate with other nodes
> (unless they are named explicitly), you request content. Your Interest
> will be directed to the closest provider of the content, which may be
> your local node, if the content was cached there.
>
> Now assuming that you requested content that is currently only
> available through a publisher in the US, then your local node will
> select a face to forward the Interest based on what NLSR (the NDN
> routing protocol) specifies. In many cases the face will use an IP
> tunnel to get to the next hop. Eventually your Interest will reach the
> US publisher through a series of hops determined by the routing
> protocol.
>
> Not sure if this helps you, but I wanted to point out that in NDN the
> term "I want to communicate with a node in the US" is not meaningful.
>
> Christos.
>
>
>
> On 10/21/2016 05:21 AM, Matteo Bertolino wrote:
>> Good morning community,
>> I am wondering whether a little literature about the Testbed   
>> architecture is available.
>>
>> I search something that probably is not included in the category   
>> "Testbed" on the official site.
>>
>> I mean, suppose that I am in Italy and I would like to communicate   
>> with a node in US. I send an Interest, then I suppose that the   
>> request is encapsulated in an IP request in order to arrive to   
>> destination.
>> Is it correct? Can I know more about the practical steps?
>>
>> Bests, Matteo
>>
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