[Ndn-interest] Basic Query about Dual Names for one Content

Lixia Zhang lixia at CS.UCLA.EDU
Thu Jul 21 00:34:33 PDT 2016

> On Jul 21, 2016, at 12:18 AM, Syed Hassan Ahmed <s.h.ahmed at ieee.org> wrote:
> Respected NDN Community,
> Can we have two names for one Content? Let's say, we consider heterogeneous naming schemes, that have been applied at two different locations (X, Y) and the nodes are mobile (lets say Vehicles). Now when a node from location X moves into the range of location Y? How the NDN router/node resolves this issue? May be my question is a bit ambitious, however, I believe that one content can have multiple names. I understand the concept of NONCE somehow, but NONCE can be applied to two different names for the same content? 

1/ yes a single piece of content can have multiple names.
However every name should name a unique piece of content.

2/ There can be applications that name content based on locations.
generally speaking, content names are not location-specific.

3/ in your above example: do vehicles X and Y carry an identical piece of content?
If so, that content can have its own name, independent from the locations of X or Y, there is no issue whether X and Y are far apart or close to each other (this could lead you to a different question: if a name is not location-dependent, how NDN forwarders find the content: some discussions here: http://named-data.net/publications/survey_mobility_support_ndn/ <http://named-data.net/publications/survey_mobility_support_ndn/>)

4/ "nonce" is not relevant to the above discussions; it's used to mitigate  interest looping.

my 2 cents,
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