ERAS - an Emergency Response Algorithm for Survivability of Critical Services

Survivability has emerged as a new phase for the development of network security technique, and how to improve the system survivability using effective technique is an important problem. This paper takes the requirement of emergency response as its research background, and a new algorithm is proposed based on resource reconfiguration. The algorithm focuses on the time of emergency response and the number of preempted non-critical service. By establishing a model based on the two limiting conditions and exploring the solution, we find the feasible scheme. An instance is given to show that the algorithm can ensure the durative running of critical services, and it is a valid technique for survivability