[ndnSIM] [EXT] Naming in NDN

Junxiao Shi shijunxiao at email.arizona.edu
Wed Oct 21 05:31:55 PDT 2020


Hi Arif

No. The Interest is not uniquely named, so it would be satisfied by a
cached Data packet and not reach the producer.
Moreover, although Data packet size is theoretically unlimited, sending a
large Data packet would require fragmentation, and has exponentially large
chance of getting packet loss.

Yours, Junxiao


On Wed, Oct 21, 2020, 08:16 Arif Hussain Magsi <ahmagsi at sau.edu.pk> wrote:

> *External Email*
> Dear Junxiao Shi,
>
> Thank You for your guidance.
>
> Is it possible if consumer sends a prefixed name i.e., NDN/vanet/incidents/
>
> In the response, producer matches prefixed interest packet and send all
> the packets in single data packet?
>
>
> Regards
>
> Arif
>
>
> ------------------------------
> *From:* Junxiao Shi <shijunxiao at email.arizona.edu>
> *Sent:* Wednesday, October 21, 2020 4:31:16 PM
> *To:* Arif Hussain Magsi <ahmagsi at sau.edu.pk>
> *Cc:* ndnsim at lists.cs.ucla.edu <ndnsim at lists.cs.ucla.edu>
> *Subject:* Re: [EXT][ndnSIM] Naming in NDN
>
> Hi Arif
>
> False and false.
> NDN Protocol Design Principles
> https://named-data.net/project/ndn-design-principles/ allow only one Data
> packet in reply to each Interest. It isn't possible for a producer to send
> multiple Data packets to one Interest.
>
> You need a dataset synchronization protocol, such as *PSync PartialSync*,
> for this use case.
>
> Yours, Junxiao
>
> On Wed, Oct 21, 2020 at 05:44 Arif Hussain Magsi <ahmagsi at sau.edu.pk>
> wrote:
>
> *External Email*
> Dear Members,
>
> Can you please guide me following please?
>
> 1. In NDN, a newly joining consumer wants to receive all the data packets
> which were shared previously. To do so, a consumer broadcast prefix
> interest such as:
>  NDN/vanet/incidents/
>
> In the response, a producer provides data packet in following naming
> structure
>
> Ndn/vanet/incidents/sequence_No/event
>
> Is above hypothesis correct?
>
> 2. In NDN, a consumer remains absent for certain time, during his absence
> many packets were shared. After rejoining, a consumer wants to receive all
> those packets which were shared during his absence. To solve this problem,
> a consumer can send a signed interest that includes consumer's timestamp
> and producer compares its timestamp with consumer's timestamp and send the
> missing content.
>
> Is above hypothesis correct?
>
> Looking for response please.
>
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>
>
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