[Ndn-interest] The Usage of ApplicaationParameters in the Interest packet

최강일 forerunner at etri.re.kr
Wed Mar 20 20:18:40 PDT 2019

Dear All,

I'm currently studying NDN for apply if to our application which will be used on Push-style Event Delivery System.

According to the ApplicationParameters of Interest Packet NDN Spec. (http://named-data.net/doc/NDN-packet-spec/current/interest.html#applicationparameters),

    - The ApplicationParameters element can carry any arbitrary data that parameterizes the request for Data. The Interest’s name MUST include a Interest parameters digest component to ensure uniqueness and integrity of the parameterized Interest (see Parameters Digest Component section for additional details)

I studied some other usages for ApplicationParameters of Interest and I found "Singed Interest and Command Interest":

    - Redesign Signed Interest and Command Interest to use Parameters( https://redmine.named-data.net/issues/4599#change-24434 )

My understanding for these usages are only for control and management.

My questions are:

1. What's original intension(usage) for "ApplicationParameters of Interest"? Is it limited for control and management only? There's no clear description on it.

2. Can I use "ApplicationParameters of Interest" to carry our Application's data over NDN network?

3. Can I extend Signed Interest(which will include ApplicationParameters) and use "ApplicationParameters of Singed Interest" to carry our Application's data over NDN network?

Thanks in advance.

Best wishes,
Paul Kangil Choi
Principal Researcher
Network Research Division
ETRI, Republic of Korea(South)
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