@techreport{ietf-spring-sr-for-enhanced-vpn-09, number = {draft-ietf-spring-sr-for-enhanced-vpn-09}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-spring-sr-for-enhanced-vpn/09/}, author = {Jie Dong and Takuya Miyasaka and Yongqing Zhu and Fengwei Qin and Zhenqiang Li}, title = {{Segment Routing based Network Resource Partition (NRP) for Enhanced VPN}}, pagetotal = 19, year = 2025, month = jun, day = 10, abstract = {Enhanced VPNs aim to deliver VPN services with enhanced characteristics, such as guaranteed resources, latency, jitter, etc., so as to support customers requirements on connectivity services with these enhanced characteristics. Enhanced VPN requires integration between the overlay VPN connectivity and the characteristics provided by the underlay network. A Network Resource Partition (NRP) is a subset of the network resources and associated policies on each of a connected set of links in the underlay network. An NRP could be used as the underlay to support one or a group of enhanced VPN services. Segment Routing (SR) leverages the source routing paradigm. A node steers a packet through an ordered list of instructions, called "segments". Segments can represent topological or service based instructions. Segments can further be associated with a set of network resources used for executing the instruction. Such segments are called resource-aware segments. A group of resource-aware SIDs may be used to build SR based NRPs, which provide customized network topology and resource attributes required by one or a group of enhanced VPN services. This document describes an approach to build SR based NRPs using resource-aware SIDs. The SR based NRP can be used to deliver enhanced VPN services in SR networks.}, }