[ndnSIM] Identifying an interface (face?)

[John Baugh]

Greetings again ndnSIM friends,

What is the appropriate way to identify what interface a particular Data
packet is received (or sent?) on?

Here's a scenario:

Assume there is a router, R with a Content Store, between a producer, P,
and several consumers, C1, C2, C3, ..., C*n*.

Will the router naturally have a single interface exposed for each
consumer?  Or can multiple consumers communicate over the same interface
(e.g., send Interests across the same interface/Face)?

I'd like to be able to determine how much and which data arrives on a
particular interface.  I suppose I somehow need to obtain a FaceId, and
somehow determine which Data arrives on that face?  Also, I need to be able
to distinguish between Faces among applications and NFD, and between NFD
and the "outside world" - i.e., which are ACTUALLY network interfaces.

Ideas?

Thanks,

John

P.S. - I am slowly, but surely, understanding this simulator much better,
and I appreciate all of your patience.  I am currently working on a very
thorough tutorial/reference for myself, and once somewhat refined with very
good examples I will release it to the community to help people get up to
speed even fast - at least that's the goal.
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