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Consumer‐Producer API for Named Data Networking
Ilya Moiseenko
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How do we develop NDN apps? How do we develop NDN apps?
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Consumer Producer API for Named Data Networking Ilya Moiseenko 1 - - PowerPoint PPT Presentation
Consumer Producer API for Named Data Networking Ilya Moiseenko 1 - - PowerPoint PPT Presentation
Consumer Producer API for Named Data Networking Ilya Moiseenko 1 How do we develop NDN apps? How do we develop NDN apps? 2 Lib Libraries: NDN cxx, NDN cpp i NDN NDN Figure 1. Interest / Data API 3 Can we have more
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Lib i NDN NDN Libraries: NDN‐cxx, NDN‐cpp
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Figure 1. Interest / Data API
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Can we have more effective API ? Can we have more effective API ?
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Application socket API
IP NDN
Application Transport Application Network Network network layer API Socket API offers:
- Point‐to‐point channel
- Reliable transmission
- Flow / congestion control
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/ g
- Segmentation
- Ordering and reassembly
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Closer look at NDN
Application Application
Library Library Library Library
Network
Challenges I t ti f lib i i t k l d f NDN Integration of libraries requires near‐expert knowledge of NDN
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Is it possible?
Application generic API Application
Library Library Library Library
Network
To assist non‐expert application developers fully exploiting NDN capabilities without a deep understanding of its network layer machinery.
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Point‐to‐point model (IP)
point‐to‐point channel IP network Server IP network Client
- 2. connect()
4 send()
- 1. listen()
- 3. accept()
- 5. read()
Data transfer parameters are the property f th i ti h l
- 4. send()
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- f the communication channel
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Socket abstraction
Keeps the state of communication channel Keeps the state of communication channel
- Protocol machinery in use
- state: listen/connect read/write
- state: listen/connect, read/write
- send and receive buffers
- send and receive timers
- send and receive timers
- TCP maximum segment size
- ….
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Distribution model (NDN)
not a channel NDN network
Producer
- 1. ???
network
Consumer
- 2. ???
- 3. ???
What are the parameters (state) of information distribution?
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p ( ) What are the API calls ?
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Consumer‐specific parameters
- 1. Selectors
- 2. Security
- 2. Security
– Data verification – Securing Interests
3 F t hi
- 3. Fetching
– Reliable transmission – Sequencing
- 4. Processing
– Send / receive buffers Reassembly
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– Reassembly
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Producer‐specific parameters
- 1. Security
– Securing Data Securing Data – Interest verification
- 2. Demultiplexing
– Namespace (prefix) registration
- 3. Processing
C t t t ti – Content segmentation – Send / receive buffers
- 4. Caching
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- 4. Caching
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New programming abstractions
- 1. Consumer context
- 2. Producer context
Context — keeps the state of data transfer under a specific name prefix under a specific name prefix
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Consumer context Consumer context
A i t NDN fi ith
- Associates NDN name prefix with consumer‐
specific data transfer parameters C t l h I t t d d h
- Controls how Interests are expressed and how
returning Data packets are processed
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Producer context Producer context
A i fi i h d
- Associates NDN name prefix with producer‐
specific data transfer parameters
- Controls how data is produced and secured, and
how Interests are demultiplexed.
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Summary Summary
Consumer and producer contexts Consumer and producer contexts
- Offer a richer set of functions than sockets
il d f di ib i d l
- are tailored for NDN distribution model
- include communication protocols for faster
app development
- will include versioning protocols
g p
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Thank you! Thank you!
See the poster to get more info!
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