MOBILITY FIRST : NOTE - 01 |
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
Use cases |
Along with above mentioned points, we may also want to look at the use cases that might guide us in design process
- 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 ?
- 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
- NETWORK MOBILITY
- STRANGE 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 ?
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 ?
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.
There is a need for attaining routing on flat address : GUID ?