Fault Management Mechanism of Multi-party Cooperation in Network Slicing Environment

In order to solve the problem of low efficiency of virtual network service fault management in the context of multiple virtual network providers and multiple underlying network providers, this paper proposes a multi-party cooperation fault management mechanism in the network slicing environment. Firstly, a multi-party cooperation fault management model is constructed, which includes five modules: network fault diagnosis dispatching center, underlying layer network provider set, virtual network provider set, inter domain fault location, and blockchain node. Secondly, based on this model, a multi-party cooperative fault management mechanism is designed. The mechanism includes six steps: reporting virtual network service alarm information, building associated underlying network collection, ranking underlying network reliability, fault location of a single underlying network, inter domain fault location, and fault diagnosis evaluation. Finally, from the two dimensions of the availability of the fault management model and the performance of the fault management mechanism, it is verified that the fault management model and the diagnosis mechanism in this paper have good application value.