[Nfd-dev] Supporting objects larger than 8KB

[Dave Oran (oran)]

And of since there will be instances of NFD on e net with different values of this parameter, we have a fully cooked PMTU discovery protocol to make sure this works, right?


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iDevice - please excuse typos.

On Oct 29, 2014, at 1:02 PM, Junxiao Shi <shijunxiao at email.arizona.edu<mailto:shijunxiao at email.arizona.edu>> wrote:


Hi Christos

Practical limit of NDN packet size is controlled by ndn::MAX_NDN_PACKET_SIZE constant in ndn-cxx (common.hpp).
There shouldn't be hard-coded packet size limit anywhere else, otherwise it's a bug.

You may change this constant, and recompile everything.

Yours, Junxiao

On Oct 29, 2014 12:42 PM, "Christos Papadopoulos" <christos at cs.colostate.edu<mailto:christos at cs.colostate.edu>> wrote:
I should have been more clear in my question.

I was asking if there is a reason not to make it configurable.
The answers I got offer wisdom about not exceeding size X when running over the big-I Internet.

I want to separate the question of selecting the appropriate size and what NFD should support.

If I have my private network where I want to support a large object size or even if I want to experiment with different sizes to try out different fragmentation algorithms, I should be able to do it, right?

Hopefully the max object size is a configuration parameter somewhere and NFD does not make any assumptions.

Maybe the answer is go ahead and try it and file a bug report if it breaks :-)

Christos.


On 10/28/2014 04:21 PM, Junxiao Shi wrote:
Hi Christos

The 8800-octet practical packet size limit comes from CCNx.
I asked about the reason for this setting, and I agree with their
answer: http://www.ccnx.org/pipermail/ccnx-users/2013-October/001355.html

Yours, Junxiao

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