[Nfd-dev] a question about PIT entry

Lixia Zhang lixia at CS.UCLA.EDU
Wed Jun 29 12:28:18 PDT 2016


> On Jun 28, 2016, at 10:04 AM, Lan Wang (lanwang) <lanwang at memphis.edu> wrote:
> 
> Hi,
> 
> I have a question about how to keep a PIT entry in a particular situation.  Suppose there are two nodes:
> 
> a — b
> 
> 1) a and b both send the same interests (same name) to each other.
> 2) a responds to b’s interest with a data packet.  In the current PIT implementation, it will remove both a and b's PIT entry for this interest.
> 
> We hope that a’s data packet would not erase the PIT entry in a and b completely (only remove the necessary in and out records) so that b can still respond to a’s interest.
> 
> This is inspired by a partialsync implementation issue.  Is there any way to achieve this result?

Not sure I fully understand the problem here: given A already has the data packet, wonder why it is necessary for B to send the data packet back to A (instead of having A to resolve the issue internally)?

Lixia



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