Translate étendue globale from French to English

– An administrative grouping feature that supports a DHCP server's ability to use more than scope for each physical interface and subnet. Superscopes are useful under the following conditions: If more DHCP clients must be added to a network than were originally planned, if an Internet Protocol (IP) network is renumbered, or if two or more DHCP servers are configured to provide scope redundancy and fault-tolerant design DHCP service for a single subnet. Each superscope can contain one or more member scopes (also known as "child scopes"). ¹