[Ndn-interest] Package Fragmentation in NDN

[Muhammad Hosain Abdollahi Sabet]

Hi Matti,

Actually there is/will be fragmentation in NDN. You can take look at this:
http://named-data.net/wp-content/uploads/2015/05/ndn-0032-1-ndn-memo-fragmentation.pdf
This is just a memo, but it has reviewed the problem and solutions well enough.

But the need for fragmentation in above comes from the fact that MTUs may differ throughout the network. I don't think having large amounts of segments(you say names) be a problem. They could be aggregated easily.

Thanks,
Sabet

-----Original Message-----
From: Ndn-interest on behalf of aniesh chawla
Sent: Thu 8/27/2015 9:00 AM
To: Matti Lorenzen; ndn-interest at lists.cs.ucla.edu
Subject: Re: [Ndn-interest] Package Fragmentation in NDN
 
Hi Matti,

ndnputfile/ndngetfile comes from repo-gn, you might have to install it.
You can also check out ndnputchunk3, this will also do what you want. If
you want I have created a text file sender/receiver by (modifying earlier
producer/sender code) for large chunks of data, more like bulk transfer. I
have tested my code for one sender and one receiver and haven't tested for
more than one receiver(maybe some optimization have to done there)

Regards
Aniesh

On Thu, Aug 27, 2015 at 9:48 AM, Matti Lorenzen <matti.lorenzen at tum.de>
wrote:

> Dear Aniesh,
> this sounds a lot like what I am looking for. Thank you.
> I'm running ndn-cxx and NFD version 0.3.3 on Ubuntu 14.04. - if i see
> correctly, ndnputfile is a part of NDNx, is it complatible with my current
> setup?
>
> Best regards from Tokyo,
> Matti
>
> _________________________________________________________________
>
> *Matti Lorenzen*
> IAESTE LC München - *Outgoing*
> IAESTE Central European Region -
> *Vice Trainings Coordinator*
>
>
> ------------------------------
> Date: Thu, 27 Aug 2015 09:40:30 +0530
> Subject: Re: [Ndn-interest] Package Fragmentation in NDN
> From: aniesh at sanctumnetworks.com
> To: matti.lorenzen at tum.de
>
>
> Hi Matti,
> I think you are looking for putting more number of segments. The largest
> segment allowed in NDN is 8800(last I checked).
> In order to put the file you have a tool called ndnputfile, and to get
> there is tool ndngetfile.
> check this out:
> http://named-data.net/doc/0.1/manpages/ndnputfile.1.html
>
> Regards
> Aniesh
>
> On Thu, Aug 27, 2015 at 6:31 AM, Matti Lorenzen <matti.lorenzen at tum.de>
> wrote:
>
> Dear all,
>
> I have a question regarding the payload of Data packets.
> I used ndnpeek and ndnpoke in order to submit an interest for a file and
> successfully received a data packet in return. However, this data packets
> were only returned to me if the file contained was very small (1,5kB).  Is
> there any way to send larger files through another tool? By my
> understanding, peek and poke are used only for exactly one packet and are
> hence limited regarding data transfer.
>
> I know that data is segmented and all segments of a file would be aligned
> underneath the file in the naming hierarchy. However, the size of these
> segments is not so small that they would fit in a Data packet, right?
> Otherwise large files would have a very high amount of segments.
>
> Thank you in advance,
> best regards,
> Matti Lorenzen
>
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>
>
>

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