[Ndn-interest] NFD flag clarification

[Tai-Lin Chu]

It is very interesting, but is it a good idea?

It sounds like two applications are now "fighting" over interests.
Moreover, ChildInherit and Capture complicate lookup a lot.

On Mon, May 4, 2015 at 3:28 PM, Vince Lehman (vslehman)
<vslehman at memphis.edu> wrote:
> Hi Tai-Lin,
>
> Is this understanding correct?
>
> Yes, I think you have the general idea.
>
> The CHILD_INHERIT flag, when applied to a route, allows a longer child name
> prefix to use that route for forwarding. It adds the route as an option to
> the FIB, but the route used to forward the Interest is up to the strategy. A
> parent prefix with a route without the CHILD_INHERIT flag will not be added
> to the FIB entry for a longer prefix.
>
> CAPTURE prevents a name prefix and longer children prefixes from using a
> route associated with a shorter parent name prefix. The CAPTURE flag will
> not only prevent inheritance for the same name prefix but also longer
> children prefixes.
>
> What is the use case of capture?
>
> The capture flag can be used to prevent traffic for a prefix from flowing to
> another route.
>
> For example, if laptop 1 registers /A with CHILD_INHERIT and laptop 2
> registers /A/B with no flags, traffic for /A/B can be forwarded to both
> laptop 1 and 2.
>
> If laptop 2 instead registers /A/B with the CAPTURE flag, traffic for /A/B
> will be forwarded to laptop 2 and will not be forwarded to laptop 1.
>
> --
> Vince Lehman
>
> On Apr 22, 2015, at 3:54 PM, Tai-Lin Chu <tailinchu at gmail.com> wrote:
>
> http://redmine.named-data.net/projects/nfd/wiki/RibMgmt
>
> Is this understanding correct?
> CHILD_INHERIT: true = usual lpm, false = exact matching
> CAPTURE: prevent lpm to be used (in other entries with the same name)
>
> What is the use case of capture?
>
>
> Thanks.
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