The Internet has become a topmost critical infrastructure. Due to the importance of telecommunication services (as a base for stock market, telesurgery, etc.), improving the preparedness of networks to regional failures is becoming a key issue. The majority of severe network outages happen because of a disaster (such as an earthquake, hurricane, tsunami, tornado, etc.) taking down a lot of (or all) equipment in a given geographical area. Such failures are called regional failures.Many studies have touched the problem of how to prepare networks to survive regional failures, where the first solutions have assumed that fibers in the same duct or within 50 km of every network node fail simultaneously (namely, in a single regional failure).
نظرات کاربران