Segment Routing (SR) allows for a flexible definition of end-to-end paths within IGP topologies by encoding paths as sequences of topological sub-paths, called "segments". These segments are advertised by the link-state routing protocols (IS-IS and OSPF). And a segment is identified by a Segment Routing ID(SID). This document proposes a method that the only selected SR nodes responsible for allocating SIDs for a SR domain to reduce SID configuration required on all SR nodes.