Bell Canada Cisco Systems, Inc. Arrcus Nokia Juniper Networks Cisco Systems, Inc. This document describes an architecture to construct a Point-to- Multipoint (P2MP) tree to deliver Multi-point services in a Segment Routing domain. A SR P2MP tree is constructed by stitching a set of Replication segments. A SR Point-to-Multipoint (SR P2MP) Policy defines a P2MP tree and a PCE computes and instantiates the tree.