[Ndn-interest] Interest Order Maintaining

[Junxiao Shi]

Hi Nitinder

NDN network does not guarantee in order delivery. An Interest could also be
delivered to the producer multiple times.

It's advised that apps are designed to not require in order delivery.

If an app requires in order Interest delivery, one choice is to implement
stop and wait: consumer sends the next Interest after previous ones are
answered.

Yours, Junxiao
On Feb 14, 2015 3:50 AM, "Nitinder Mohan" <nitinder1369 at iiitd.ac.in> wrote:

> Hello All!
>
> A curious question comes to my mind regarding routing strategy in NDN.
>
> Let us assume that there is one consumer and one producer in a network
> consisting of myriad of routers. If a consumer issues continuous interests
> for different data packets from the same producer, is it guaranteed that
> the Interest packets will arrive at producer in the same order as in which
> they were published?
>
> I understand that NDN follows multipath routing and later selects paths
> from its PIT entry according to performance of returning data. But wouldn't
> consecutive interests be sent on the same interface presuming there is no
> change in the network.
>
> Thanks and Regards
>
> Nitinder Mohan
> MTech (CE) IIIT Delhi
> http://home.iiitd.edu.in/~nitinder1369/
>
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