A method and Domain Name System server for establishing a communication session in an Internet Protocol -based communication network. The housing contains a hydrostatic transmission, a differential unit driven by the hydrostatic transmission, a pair of axles mutually differentially connected through the differential unit, and a restricting mechanism for selectively restricting differential motion of the axles by manual operation. The timing of a resource assignment reconfiguration is based on a job execution schedule, which is associated with a predetermined configuration, and which is executed by a computer utilizing the logical partition. 0% molar within the first gate dielectric layer, the nitrogen atoms being higher in concentration within the first gate dielectric layer at one elevational location as compared to another elevational location.