Method of resilient operation of a virtual network function and system thereof

A method of operating a host platform configured to host a virtual network function (VNF), the host platform comprising a first processor and memory block (PMB) and a second PMB, both operatively connected to an I/O switch, the method comprising:

• hosting on the first PMB a first virtual platform (VP) with the help of a first hypervisor being executed on the first PMB, wherein, when the first hypervisor is in an operational mode, the first VP is executing the VNF under a primary VNF configuration;
• hosting on the second PMB a second VP with the help of a second hypervisor being executed on the second PMB, wherein processing power of the second hypervisor is substantially less than processing power of the first hypervisor, and wherein, when the first hypervisor fails, the second VP executes the VNF under an emergency VNF configuration;
• monitoring status of the first hypervisor by a system controller being executed on the second PMB;
• responsive to a failure of the first hypervisor, enabling, by the system controller, executing the VNF on the second VP.

A non-transitory computer readable medium comprising instructions that, when executed by a computer, cause the computer to perform a method of operating a host platform configured to host a virtual network function (VNF), the host platform comprising a first processor and memory block (PMB) and a second PMB, both operatively connected to an I/O switch, the method comprising:

• hosting on the first PMB a first virtual platform (VP) with the help of a first hypervisor being executed on the first PMB, wherein, when the first hypervisor is in an operational mode, the first VP is executing the VNF under a primary VNF configuration;
• hosting on the second PMB a second VP with the help of a second hypervisor being executed on the second PMB, wherein processing power of the second hypervisor is substantially less than processing power of the first hypervisor, and wherein, when the first hypervisor fails, the second VP executes the VNF under an emergency VNF configuration;
• monitoring status of the first hypervisor by a system controller being executed on the second PMB;
• responsive to a failure of the first hypervisor, enabling, by the system controller, executing the VNF on the second VP.