[Nfd-dev] NDNLPv2 and NDN-RIOT L2 fragmentation

[David R. Oran]

If you’re going to re-open some design considerations for link 
mapping, you really ought to look at

https://datatracker.ietf.org/doc/draft-irtf-icnrg-icnlowpan/

before casting everything in stone.

On 3 Dec 2019, at 9:20, Lixia Zhang wrote:

> > On Dec 2, 2019, at 11:52 AM, Zhiyi Zhang <zhiyi at cs.ucla.edu> wrote:
>>
>> I would agree with Junxiao.
>> NDN-LITE's fragmentation protocol follows the design in NDN-RIOT made 
>> by Wentao.
>> The ideal solution is to make NDN-LITE compatible with NDNLPv2.
>>
>> Best,
>> Zhiyi
>
> 1/ I didn't realize that NDNLP has this hard-coded seq# field -- this 
> is really not IoT friendly.  Why not TLV?
>
> 2/ NDN-Lite subsumed NDN-RIOT, I'd suggest whoever played with 
> NDN-RIOT consider moving to NDN-Lite.
>
> 3/ I think it is important to make NDNLP and NDN-Lite compatible.
> I'll discuss this with the NDN-Lite group to see how to get this done 
> quick (but LP needs to be made IoT friendly, e.g. Lite cannot afford 
> 8-byte seq#)
>
> my 2 cents,
> Lixia
>
>> On Mon, Dec 2, 2019 at 7:50 AM Junxiao Shi 
>> <shijunxiao at email.arizona.edu <mailto:shijunxiao at email.arizona.edu>> 
>> wrote:
>> Hi Aboodi
>>
>> No, ndn-lite fragmentation differs from NDNLPv2 fragmentation. There 
>> are major design problem in ndn-lite fragmentation protocol: it has 
>> overly strict limit on frame size. Thus, I don't recommend using that 
>> protocol.
>> The solution would be implementing NDNLPv2 fragmentation in ndn-lite.
>>
>> Yours, Junxiao
>>
>> On Mon, Dec 2, 2019 at 9:29 AM Aboodi Ahed Hussein Ali 
>> <aboodi at student.usm.my <mailto:aboodi at student.usm.my>> wrote:
>> Hi everyone,
>>
>> Does NDNLPv2 of NDN support the L2 fragmentation of NDN-RIOT?  if 
>> yes, How to enable it?
>>
>> if no, any suggestion on how I can make native NDN and NDN-RIOT 
>> communicate knowing that both fragmentation headers are different?
>> In fact, I was thinking about the possibility of translating, copying 
>> or matching the values of the fields for both fragmentation headers. 
>> However, the fragmentation header in NDN-RIOT has no Fragmentation 
>> Count. Besides, the Sequence field in NDNLPv2 is larger (8-bytes) 
>> than the on in NDN-RIOT (5-bits).
>>
>> I would really appreciate any suggestions.
>>
>> Ahed,
>>
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DaveO
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