[Ndn-interest] Question about unsatisfied Interests

Junxiao Shi shijunxiao at email.arizona.edu
Wed Oct 15 08:37:43 PDT 2014

Hi Marc

There's no such field. We only have FreshnessPeriod.
By staleness definition, when the Data arrives at B, it's fresh until
FreshnessPeriod has elapsed, regardless of how it's requested.

Yours, Junxiao

On Wed, Oct 15, 2014 at 8:33 AM, <Marc.Mosko at parc.com> wrote:

>  So there is a field in the content object that distinguishes if it is
> fresh or not?  I thought there was only the FreshnessPeriod, which is a
> relative number from the time received and a remote node cannot determine
> if a content object was fresh or not when it came out of the content store.
>  Example:
>  A — B — C
> D -/
>  Node A sends a normal (staled allowed) interest to B, who forwards it to
> C.  Just a bit later, node D issues a “MustBeFresh” interest for the same
> name.  Node B sees that they are different requests, so forwards the second
> interest to C also.
>  Node C replies to the first interest with a stale content object.  How
> can node B know  that the content object should only go to A and not to D?
>  Marc
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