[Nfd-dev] Question about packet format v0.3 transition

[Arthi Padmanabhan]

Hi Junxiao, 

In yesterday's call, you mentioned that you have some documentation about Interest Parameters that could be useful. Since I'm planning to start add Parameters, can you please send that? 

Thanks, 
Arthi 


From: "Junxiao Shi" <shijunxiao at email.arizona.edu> 
To: "Lixia Zhang" <lixia at cs.ucla.edu> 
Cc: "Arthi Padmanabhan" <artpad at cs.ucla.edu>, "<nfd-dev at lists.cs.ucla.edu>" <nfd-dev at lists.cs.ucla.edu> 
Sent: Friday, July 6, 2018 12:09:15 PM 
Subject: Re: [Nfd-dev] Question about packet format v0.3 transition 

Hi Lixia 



> Within the next few months, ndn-cxx must remain compatible with Packet Format 0.2 endpoints. Therefore, new fields such as Parameters are unavailable. 

I can't recall the exact results from NFD discussion, but my vague memory does not match Junxiao's above statement. 

Compatibility means supporting the old protocol format. 
Compatibility does mean no support for new protocol field. 



As indicated on https://redmine.named-data.net/projects/nfd/wiki/Packet03Transition , Packet Format 0.3's new fields will become available when reaching "2-to-3 Interpretation" step. 
Sadly, development work for Packet Format 0.3 has been dormant in past two months, so we are nowhere near that step. 


BQ_BEGIN
> Few people has any idea on how Interest Parameters *should* be used. 

what does this statement mean ??? 

BQ_END

As evidenced by not seeing any protocols designed to use Interest Parameters. 
This could be a chicken-egg problem, as the implementation has no support for Interest Parameters, so that application developers would be unwilling to depend on a protocol feature that isn't yet available.. 

BQ_BEGIN
> Some protocol issues related to Interest Parameters adoption are: 
> https://redmine.named-data.net/issues/4599 Signed Interest and Command Interest 

as I looked this up: I believe your proposed implementation needs to go through a thorough discussion (I am not sure I'd agree with your suggestion there) 

BQ_END

Everyone, please post your comments on Redmine. 


BQ_BEGIN


> https://redmine.named-data.net/issues/4600 NFD Management protocol 
the next issue is about management protocol, which is not directly related to other apps use of Interest parameter field. 
BQ_END

NFD Management protocol serves as an example on how to design a command-response protocol. So far, repo-ng and NLSR has adopted similar protocols. 

Yours, Junxiao 

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