Protection against a failure in a computer network

摘要

It is disclosed a method for protecting a computer network against a failure. The method comprises: identifying a number of possible failures which might occur within the computer network, the number of possible failures comprising at least one possible failure; and, based on detected availability of resources in the computer network, determining a protection state of the computer network allowing to circumvent the possible failure and dynamically updating the determined protection state based on changes of the detected availability. The method further comprises, upon occurrence of the failure, if the occurred failure corresponds to the possible failure, bringing the computer network into an operative protection state corresponding to the determined and dynamically updated protection state.

主权项

1. A method for protecting a computer network against a failure, said method comprising:
a) identifying a number of possible failures which might occur within the computer network, said number of possible failures comprising at least one possible failure; b) based on detected availability of resources in said computer network, determining a protection state of said computer network allowing to circumvent said possible failure and dynamically updating said determined protection state based on changes of said detected availability, said protection state being determined, for said possible failure, from a set of possible protection states, and a selection of said protection state being based on a type of failure, wherein said step b) further comprises:
determining at least two protection states of said computer network allowing to circumvent said possible failure and dynamically updating said determined at least two protection states based on changes of said detected availability; andselecting one of said determined and dynamically updated at least two protection states by taking into account at least one constraint which said computer network shall fulfill, wherein said at least one constraint comprises at least one of the following constraints:constraint on a power consumption of the computer network; andconstraint on the time for recovering from said failure possible; said method further comprising, upon occurrence of said failure: c) if said occurred failure corresponds to said possible failure, bringing said computer network into an operative protection state corresponding to said determined and dynamically updated protection state.