[Mini-NDN] Mini-NDN Digest, Vol 51, Issue 7

[Waseeq Islam]

Dear Junxiao ShiIs it possible to send a data advertisement without payload, I mean to say, can we advertise just content name in the network. if yes plz share the method by using we can advertise content name. Best Regards,
WASEEQ
 

    On Tuesday, October 20, 2020, 12:00:04 AM GMT+5, mini-ndn-request at lists.cs.ucla.edu <mini-ndn-request at lists.cs.ucla.edu> wrote:  
 
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Today's Topics:

  1. Some Questions regarding MiniNDN (Anurag Muttur)
  2. Re: [EXT] Some Questions regarding MiniNDN (Junxiao Shi)


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Message: 1
Date: Mon, 19 Oct 2020 01:19:26 +0530
From: Anurag Muttur <anuragmuttur123 at gmail.com>
To: mini-ndn at lists.cs.ucla.edu
Subject: [Mini-NDN] Some Questions regarding MiniNDN
Message-ID:
    <CAAe6TT4MPG+xLHOop_BADmPbsT43hqDxQQrhrD4YDhdO+4onqA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hello,

I have a few questions regarding MiniNDN.

1. Is it necessary to advertise data before other nodes can request it
using an interest packet?

2. Can chunks of data from a big file be transported to a destination along
different paths from the same source? How does the destination reassemble
the chunks which are potentially out of order?

3. Can we modify the topology, latency, and throughput of links dynamically
i.e while the simulator is running?

4. If we request data and it is in the CS of two adjacent nodes that have
links to the destination, can we draw the chunks from both sources at the
same time to increase throughput? If yes, how would I be able to check this?

5. I can't seem to get 'ndnpeek' and 'ndnpoke' to work properly. It would
be great if someone could give me an example of how the commands are used.

Thanks in advance for your help.
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Message: 2
Date: Sun, 18 Oct 2020 18:04:58 -0400
From: Junxiao Shi <shijunxiao at email.arizona.edu>
To: Anurag Muttur <anuragmuttur123 at gmail.com>
Cc: sepehr abdous via Mini-NDN <mini-ndn at lists.cs.ucla.edu>
Subject: Re: [Mini-NDN] [EXT] Some Questions regarding MiniNDN
Message-ID:
    <CAOFH+OZJ9rf2ESY4GV1VNY3HYWZ93JkhY0wrY7hb=Tn5-m9ZrA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hi Anurag



> I have a few questions regarding MiniNDN.
>
> 1. Is it necessary to advertise data before other nodes can request it
> using an interest packet?
>

Yes.


> 2. Can chunks of data from a big file be transported to a destination
> along different paths from the same source? How does the destination
> reassemble the chunks which are potentially out of order?
>

In a segmented object, each segment packet name has the segment number. If
a later segment arrives early, the consumer can buffer that segment until
after all previous segments have been outputted.


> 3. Can we modify the topology, latency, and throughput of links
> dynamically i.e while the simulator is running?
>

Yes, it's possible using Mini-NDN mid-level API.
http://mininet.org/api/classmininet_1_1link_1_1TCIntf.html


> 4. If we request data and it is in the CS of two adjacent nodes that have
> links to the destination, can we draw the chunks from both sources at the
> same time to increase throughput? If yes, how would I be able to check this?
>

It's possible, but most strategies do not behave in this way. Today's
strategies are mostly designed to minimize round trip time. They would
either use only one source or jump between two sources.

I noticed that NFD 0.7.1 has a "random strategy" that may work close to
what you imagined.


> 5. I can't seem to get 'ndnpeek' and 'ndnpoke' to work properly. It would
> be great if someone could give me an example of how the commands are used.
>

hostA bash -c 'nlsrc advertise /A'
hostA bash -c 'echo hello from hostA | ndnpoke /A'
hostB bash -c 'ndnpeek /A'

Yours, Junxiao

>
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