[Ndn-interest] Interest Order Maintaining

Junxiao Shi shijunxiao at email.arizona.edu
Sat Feb 14 07:21:08 PST 2015

Hi Nitinder

NDN network does not guarantee in order delivery. An Interest could also be
delivered to the producer multiple times.
The end consumer, either implemented in app or in library, should handle
out-of-order packets. This situation is no different from IP.

Yours, Junxiao
This is a correction to a previous answer. It replaces all prior answers.

On Sat, Feb 14, 2015 at 3:50 AM, Nitinder Mohan <nitinder1369 at iiitd.ac.in>

> 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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