[Ndn-interest] Producer taking initiative to "Push" content to network.

Muhammad Faran m.faran.majeed at gmail.com
Sat Dec 5 00:12:08 PST 2015

Dear Hassan,

Thank you for prompt response. Actually, I can define the scenario in
following two points:

1. As per application perspective, the producer needs to send content
whether it is needed or not by consumers. Or there can be archiving of the
content later after its production.
2. Due to requirements of the application, the network has to adapt to
push-based mechanism and might not be limited to only pull-based mechanism
where an interest MUST be issued to retrieve content.

What I've understood from your reply:

1. In vehicular environment, every node is performing as all in all. So do
every node does in normal environment to be content router, producer and
consumer, nothing different. But even in vehicular applications such as
monitoring, a producer that wants to use the network to just accommodate
its content may need to just push content.
2. According to my sense, channel utilization is the task of layers below
the "strategy layer" of NDN. Even for channel utilization, if content
routers are aware of the application needs then they have to accommodate
the content.

Kind regards,

AIT, Thailand

On Sat, Dec 5, 2015 at 2:12 PM, Syed Hassan Ahmed <s.h.ahmed at ieee.org>

> Dear Faran,
> Experts may response in this regards, however, here is my answer:
> In Vehicular NDN research, mostly authors assume that content routers are
> installed in each vehicle, especially, when we say that no infrastructure
> support is there such as RSU. So my point is that almost every node/vehicle
> is performing as a content router + provider + consumer role at different
> instances under the given circumstances.
> Now, if we talk about "Push" based communications, then we might have a
> look at Pub/Sub mechanisms. If the vehicles in any area are subscribed to
> the specific type of data, then they don't need to send interest(s) every
> time. On the other hands, the producers start "pushing" the data into the
> network. However, in naive NDN, this approach may have its own
> consequences. Because, when you push, then it will cost extra cost in terms
> of overhead and additional copies of the packets and there might be a case,
> that all the neighboring nodes do not want to have that video content so
> why they pay the cost of channel utilization for receiving the data, they
> don't want or have any interest.
> I am not sure, that did I give you the required answer.
> Good Luck~~
> Kind Regards,
> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> *Syed Hassan Ahmed*
> 사예드 하산 아흐메드
> PhD Research Scholar,
> MoNeT Wireless Lab, <http://monet.knu.ac.kr>
> Kyungpook National University,
> Daegu City, Republic of Korea.
> Cell: +82-10-9883-0786
> https://sites.google.com/site/shahmedknu/
> On Sat, Dec 5, 2015 at 3:55 PM, Muhammad Faran <m.faran.majeed at gmail.com>
> wrote:
>> Hi!
>> So far, I have been viewing NDN architecture working as pull-based
>> mechanism. Is there any possibility to incorporate "Push" mechanism in it?
>> Because for some environments, (vehicular/MANET), pull-based mechanism may
>> not work properly.
>> Scenario: In a highly dynamic environment, the producer moving quickly
>> among content routers, capturing and publishing video. So, producer can not
>> wait for an interest and want to push the video content in-network before
>> its local storage is full.
>> Kind regards,
>> Faran,
>> AIT, Thailand
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>> Ndn-interest at lists.cs.ucla.edu
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