03-07-2014, 12:23 PM
ANA-AUTONOMIC NETWORK ARCHITECTURE
ANA-AUTONOMIC NETWORK.pptx (Size: 538.35 KB / Downloads: 13)
INTRODUCTION
The term ‘autonomic’was coined by IBM in the year 2001.
Refers to the ability of a system to perform an operation via self properties .
Each protocol is designed in isolation to solve a specific problem.
Interactions of protocols are restricted due to complexity.
To develop a relaible communication system a global and clearely structured frame work is needed and that is ANA.
ANA would provide network evolution and reduce human management .
It would allow protocols and algorithms to work in an autonomic manner
PITFALLS IN PRESENT SCENARIO
tatic/rigid standards instead of mechanisms for change management .
Global address space (requires uniqueness and global coordination).
relying on network internal details.
Built-in address dependency (i.e. address-centric architecture).
NETWORK COMPARMENT
It is the region of network which uses same adresses,packet formats,naming services,protocols etc..
An ethernet segment,ipv4 internet,skype etc can each be modelled as a network comparment.
Each compartment is free to use any addressing, naming, and routing schemes (or is free to not use addresses, for example in sensor networks.
The "glue" for all interactions in ANA is the compartment API.
FUNCTIONAL BLOCK
Code and state that can process data packets.
Protocols and algorithms are represented as FBs.
Access to FBs is via “information dispatch points” (IDPs).
FBs can have multiple input and output IDPs.
FB internally selects output IDP(s) to which data is sent.
INFORMATION DISPATCH POINTS
All functional blocks and information channel are accessed via IDPs.
IDPs are attached to FB in a dynamic manner-it can change over time.
IDP maintains some dynamic information such as the FB to which it is attached,lifetime counter,status information etc..
CONCLUSION
Ana is a frame work and an execution environment for the development and testing of autonomic communications and protocols.
ANA is a meta architecture that promote evolution,federation,adaptation..
ANA is open to future addressing and naming schemes.