Contents What is ‘Survivability’? Domain of survivability. Characteristics of Survivable Systems. Survivability as an Integrated Engineering Framework The Current State of Practice in Survivable Systems.
Contents Expressing Survivability Requirements. Survivability : Design And Implementation Strategies. Case Study on Survivability in optical networks Research Directions. Future Scope. Conclusion.
What is ‘SURVIVABILITY’?Survivability can be defined as the capability ofa system to fulfill its mission, in a timelymanner, in the presence of attacks, failures, oraccidents.Built On : Security,FaultTolerance,Safety,Reliability,Reuse,Performance,
IMPORTANCE OF NETWORKSPrincipal enabling agents in business,industry,government, and defense.Other Sectors : energy,transportation,telecommunication, manufacturing,financial services, health care and education.
Survivable System With 3Rs : Resist , Recognize , andRecover Effected node due to attack.
Survivability: Design Survivability Analysis Is Protocol-Based Not Topology-Based Survivability Requires a Management Component
Strategies To Improve Network SurvivabilityTechniques to improve network survivabilitycan be classified into three categories:2.Prevention3.Network Design and capacity allocation4.Traffic Management and Restoration The ideal survivability goal is to make anetwork failure imperceptible to the networkusers by providing service continuity .
Case Study on Survivability in Optical Networks Survivability techniques : 2 categories – 1. Predesigned Protection – APS and SHR’s 2. Dynamic Restoration : Restoration StepsThree main architectures of APS :1. 1+12. 1:13. 1:N
Research Directions Representing intruder environments through intruder usage models. Adapting and developing architectural description techniques to adequately describe large-scale distributed systems with survivability attribute.
Future Scope Unbounded Systems(e.g. Internet) will become free from intruders and attacks . Thus ,a more risk-free environment for online transactions and banking. More intelligent networks. Intelligent Firewalls.
Conclusion Thus we have seen how survivability is proving an emerging discipline in transformation of networks into an intelligent one that can resist,recognise,recover and adapt according to the attacks made.