[Ndn-interest] NDN Stack

[Klaus Schneider]

On 8/5/19 1:33 PM, Ahmed BENMOUSSA wrote:
> Hello everyone,
> 
> I am sending you to ask about the NDN stack.
> In some papers, researchers include a "/Transport/" layer to the NDN 
> stack as follows:
> ======================
> \ *Application */
>   +--------------------------------------+
>    \ *Transport */
>     +----------------------------------+
>       \ *NDN */
>        +-----------------------------+
>       / *Link-layer*      \
>     +----------------------------------+
>    / *Physical* \
>    =====================
> 
> Other researches don't include it in their papers.
> 
> My question is: What is the role of the "/Transport/" layer in this case?
> Knowing that the "Link-layer" includes any communication protocol that 
> NDN could use as a tunnel to send and receive traffic, why a 
> "/Transport/" layer is added?

Also, I think this question can be answered with pure IP network logic: 
Tunnels can only provide point-to-point reliability between NDN nodes. 
But many applications need end-to-end reliability. Hence, the need for a 
transport layer (or similar functionality, i.e. ARQ, at the consumer).

Best regards,
Klaus


> 
> Is this layer added to support future NDN deployment? (When native NDN 
> communications are used instead of IP overlays). Or does it have other 
> roles?
> 
> What NDN stack should I consider in my papers and presentations? (with 
> or without the Transport layer).
> 
> Thank you in advance.
> 
> Kind regards,
> Ahmed. B.
> 
> 
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