In a software-defined network, the data plane handles packets under the direction of a control plane, but the controllers are just applications that can run on standard x86 hardware. SDN controllers use a standard protocol (OpenFlow) to communicate with data plane devices. Other specialized network appliances -- like firewalls and load balancers -- that get recast as SDN applications also run on standard x86 hardware using the SDN controller to get the data plane devices to do what they need to do.
A testator must be of sound mind when making a will. In part to ensure that a testator is of sound mind, states require that the signing of a will be witnessed by multiple persons. A testator also should be making the will without duress and free of coercion from other persons.
Save. When a person writes a will -- known as the testator -- he selects an executor to help finalize his estate by giving notice to beneficiaries that a will is being probated, collecting any money owed to the decedent, paying the estate's bills, paying taxes, filing tax returns and reporting to the probate court.f the testator is still alive and knows the executor is dead, he can simply make an amendment to his will -- known as a codicil. He can then name a new person to serve in this role.