[Ndn-interest] NDN Stack

[WENTAO SHANG]

Hi Ahmed,

The question you brought up is very interesting and I'm sure people will
have different opinions about what constitutes a "transport" layer in NDN.
My understanding is that, like Klaus pointed out, the NDN layer by itself
is best-effort only, so applications often need an additional layer to
provide some form of stronger guarantees, or "reliability", in data
delivery, such as eventual consistency (e.g., all the different flavors of
sync protocols) and real-time delivery (e.g., NDN-RTC).

Best,
Wentao

On Mon, Aug 5, 2019 at 1:34 PM Ahmed BENMOUSSA <ah.benmoussa at lagh-univ.dz>
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?
>
> 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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