[Ndn-interest] ndnSIM based on NFD version 0.5.0

Spyridon (Spyros) Mastorakis mastorakis at CS.UCLA.EDU
Sat Oct 29 12:16:37 PDT 2016

To clarify things:

the upcoming release of ndnSIM (v2.2) will be based on NFD 0.4.1. Our initial goal for the release after ndnSIM 2.2 is to be based on NFD 0.5, however, we really hope that it might be based on the latest (at that time) version of NFD.

The reason that ndnSIM 2.2 will be based on NFD 0.4.1 and not 0.5 is that NFD 0.5 contains a lot of internal restructuring that is not clear to us how easy or hard would be to integrate with ndnSIM. ndnSIM is based on NS3 and the NS3 world has some certain restrictions and patterns that sometimes make the integration of NFD features really hard.

I wish we had more manpower to be able to keep up more actively.

Thank you,

Spyridon (Spyros) Mastorakis
Personal Website: http://cs.ucla.edu/~mastorakis/ <http://cs.ucla.edu/~mastorakis/>
Internet Research Laboratory
Computer Science Department

> On Oct 29, 2016, at 9:41 AM, Lixia Zhang <lixia at CS.UCLA.EDU> wrote:
>> On Oct 29, 2016, at 9:22 AM, Junxiao Shi <shijunxiao at email.arizona.edu <mailto:shijunxiao at email.arizona.edu>> wrote:
>> Hi Abdelkader
>> I saw ndnSIM 2.2 release notes in code review system https://gerrit.named-data.net/3291 <https://gerrit.named-data.net/3291> which means a release can be expected very soon (I guess within 15 days).
>> But 2.2 release is based on NFD 0.4.1 rather than 0.5.0.
> Junxiao, I am talking the new release based on 0.5 (as it was discussed yesterday during an internal meeting)
>> ndnSIM maintainers appear to favor backwards compatibility rather than bringing in new features.
>> In particular, there's still no Nack in 2.2 because it would conflict with "ns3 packet tag" which is used to keep track of hop counts. 
> Let me explain:
> a) the NACK signal is carried in NDNLP; NACK handling is in NFD. 
> b) due to the consideration of "ns3 packet tag" that's used for tracing, ndnSIM has not turned on NDNLP (I know that's what you had wanted to see, Junxiao).
> c) turning on LP is trivial, the concern is the tradeoff. Yesterday during the meeting we considered soliciting community input to see what people prefer.
>> On Sat, Oct 29, 2016 at 9:16 AM, Lixia Zhang <lixia at cs.ucla.edu <mailto:lixia at cs.ucla.edu>> wrote:
>> > I would like to know (due to the breaking changes in NFD), if there is a planned new release of ndnSIM based on NFD and ndn-cxx version 0.5.0.
>> yes it has been in planning for some time.
>> I hope/believe a new ndnSIM release would come out soon.
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