MOBILITY FIRST : NOTE - 01

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NEW ARCHITECTURE

The main points to make a new approach for the Internet architecture viable are

• Separation of identity and localization
• The creation of overlay networks for introducing new control plane
  • Address Allocation
  • Routing
  • Name Resolution
• The adoption of new routing strategies for these overlay networks

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Use cases

Along with above mentioned points, we may also want to look at the use cases that might guide us in design process

1. MULTI-HOMING

This refers to the scenario where-in the end device may come with multi-home capability i.e., interfaces for different technologies on same device . This implies a requirement to support multiple interface.

Q

• Use "Multi-homed" gateways for -
  • Address Translation and
  • Protocol Translation between two domains ?
• Binding interface information to GUID => Authentication?
• Selection of interface by network ?

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2. HOST MOBILITY

Support for host mobility requires -

• dynamic binding of end host to network when connection point to network changes
• Redirection of in-transit packet without support from specific entity
• Support parallel binding to multiple networks --- (GUID : NA Mapping)
• Frequency of updates (GUID:NA) => Network sensitivity to change

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3. NETWORK MOBILITY

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4. OTHER COMMUNICATION SCENARIOS

This section includes but is not limited to

• vehicular communication,
• Personal area networks,
• Military communication and
• Disaster recovery systems

Q

• What are the requirements?
• How to attain considerable uniformity in network design ?

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MOBILITY FIRST

1. GNRS (Global Name Resolution Service)- To address the separation of identity and location

• Each node in the network shall be assigned a GUID (Globally Unique ID), that shall serve as the unique identity of the node.
• This GUID is associated with current network reachability information of the node
• This serves to separate addressing from location => support for mobility
• GNRS functionality is attained using Distributed system ( DHT)

Q

• Who assigns these GUID ?
• Levels of GNRS required ? => Only Local and Global ?

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2. Routing GSTAR (Global Storage Aware Routing) Features -

• Delay Tolerance
• Storage Aware
• Decisions based on link quality

Currently the above are hinted to be used for intra-domain routing.

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