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Names and Bindings in Internet Architectures

Names and Bindings in Internet Architectures. Dirk Hasselbalch Distributed Systems Group, Trinity College Dublin 2014-04-03. Problem Statement. Main Questions How do IAs differ? What is an IA? What is a good IA? Hypothesis IAs differ in their bindings of names to objects

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Names and Bindings in Internet Architectures

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  1. Names and Bindingsin Internet Architectures Dirk Hasselbalch Distributed Systems Group, Trinity College Dublin 2014-04-03

  2. Problem Statement • Main Questions • How do IAs differ? • What is an IA? • What is a good IA? • Hypothesis • IAs differ in their bindings of names to objects • An IA is a global agreement of bindings • In a good IA, the bindings support both reality and needs

  3. Examples of IAsTCP/IP Client IP IP Host

  4. Examples of IAsCCN Client N Other client N N N Content

  5. Examples of IAsXIA • XIA • Variable “Principals” • Hosts / data / services • Others can be defined • Fall-back mechanisms • To IP, for example

  6. Concepts • A binding is a mappingbetween a name and an object in a particular context. • Toresolve is to find the object a name is bound to in a context: • Tobind is to extend a context with a new binding:

  7. Object type What is bound? • Real-world objects (RWOs) • Companies, brands, persons, network location, host • Data objects • Data, services, network address, signatures, contexts, etc. Examples: youtu.be/dQw4w9WgXcQ 173.194.138.113 Rick

  8. Context How is it bound? • Algorithmic contexts • Lookup tables • Functions • Cultural contexts • Verifiable by humans (somewhat) • Properties • Static/dynamic • Distributed • … Examples: youtu.be/dQw4w9WgXcQ 173.194.138.113 Rick

  9. TCP/IPBindings

  10. TCP/IPBindings

  11. TCP/IPBindings

  12. TCP/IPBindings

  13. TCP/IPCharacteristics • : Defined via other contexts • : Distributed, slow change • : Assumed to be true • All contexts, name types, object types invariable.

  14. CCNBindings/Characteristics • : Distributed, slow churns • : Context, name type, object type invariable

  15. XIABindings

  16. XIABindings

  17. XIACharacteristics • : variable of a specific principal type given from via type id • : distributed, fixed implementation

  18. Internet Architectures Characterized by: • Contexts • their properties, relations, definitions • Name types • Object types and which of these are variableor fixed

  19. Conclusions • We have argued that IAs can be characterized according to their bindings, and shown a few examples. • Not everything expressible using these concepts • Context details/implementations/location • Moving forward • Lambda-expressions • Notion of location • Goal • Framework for IA classification

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