The IESG has received a request from the Source Packet Routing in Networking WG (spring) to consider the following document: - 'Segment Routing interworking with LDP' <draft-ietf-spring-segment-routing-ldp-interop-11.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2018-05-24. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract A Segment Routing (SR) node steers a packet through a controlled set of instructions, called segments, by prepending the packet with an SR header. A segment can represent any instruction, topological or service-based. SR allows to enforce a flow through any topological path while maintaining per-flow state only at the ingress node to the SR domain. The Segment Routing architecture can be directly applied to the MPLS data plane with no change in the forwarding plane. This document describes how Segment Routing operates in a network where LDP is deployed and in the case where SR-capable and non-SR-capable nodes coexist. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-spring-segment-routing-ldp-interop/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-spring-segment-routing-ldp-interop/ballot/ The following IPR Declarations may be related to this I-D: https://datatracker.ietf.org/ipr/2456/ https://datatracker.ietf.org/ipr/2277/